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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-23 08:53:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-23 08:53:47 -0700
commitf63d395d47f37a4fe771e6d4b1db9d2cdae5ffc5 (patch)
tree3448a14ae965802adb963762cadeb9989ce4caa2
parent643ac9fc5429e85b8b7f534544b80bcc4f34c367 (diff)
parent5a7c9eec9fde1da0e3adf0a4ddb64ff2a324a492 (diff)
Merge tag 'nfs-for-3.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates for Linux 3.4 from Trond Myklebust: "New features include: - Add NFS client support for containers. This should enable most of the necessary functionality, including lockd support, and support for rpc.statd, NFSv4 idmapper and RPCSEC_GSS upcalls into the correct network namespace from which the mount system call was issued. - NFSv4 idmapper scalability improvements Base the idmapper cache on the keyring interface to allow concurrent access to idmapper entries. Start the process of migrating users from the single-threaded daemon-based approach to the multi-threaded request-key based approach. - NFSv4.1 implementation id. Allows the NFSv4.1 client and server to mutually identify each other for logging and debugging purposes. - Support the 'vers=4.1' mount option for mounting NFSv4.1 instead of having to use the more counterintuitive 'vers=4,minorversion=1'. - SUNRPC tracepoints. Start the process of adding tracepoints in order to improve debugging of the RPC layer. - pNFS object layout support for autologin. Important bugfixes include: - Fix a bug in rpc_wake_up/rpc_wake_up_status that caused them to fail to wake up all tasks when applied to priority waitqueues. - Ensure that we handle read delegations correctly, when we try to truncate a file. - A number of fixes for NFSv4 state manager loops (mostly to do with delegation recovery)." * tag 'nfs-for-3.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (224 commits) NFS: fix sb->s_id in nfs debug prints xprtrdma: Remove assumption that each segment is <= PAGE_SIZE xprtrdma: The transport should not bug-check when a dup reply is received pnfs-obj: autologin: Add support for protocol autologin NFS: Remove nfs4_setup_sequence from generic rename code NFS: Remove nfs4_setup_sequence from generic unlink code NFS: Remove nfs4_setup_sequence from generic read code NFS: Remove nfs4_setup_sequence from generic write code NFS: Fix more NFS debug related build warnings SUNRPC/LOCKD: Fix build warnings when CONFIG_SUNRPC_DEBUG is undefined nfs: non void functions must return a value SUNRPC: Kill compiler warning when RPC_DEBUG is unset SUNRPC/NFS: Add Kbuild dependencies for NFS_DEBUG/RPC_DEBUG NFS: Use cond_resched_lock() to reduce latencies in the commit scans NFSv4: It is not safe to dereference lsp->ls_state in release_lockowner NFS: ncommit count is being double decremented SUNRPC: We must not use list_for_each_entry_safe() in rpc_wake_up() Try using machine credentials for RENEW calls NFSv4.1: Fix a few issues in filelayout_commit_pagelist NFSv4.1: Clean ups and bugfixes for the pNFS read/writeback/commit code ...
-rw-r--r--Documentation/filesystems/nfs/idmapper.txt20
-rw-r--r--Documentation/filesystems/nfs/pnfs.txt54
-rw-r--r--Documentation/kernel-parameters.txt23
-rw-r--r--fs/lockd/clnt4xdr.c2
-rw-r--r--fs/lockd/clntlock.c3
-rw-r--r--fs/lockd/clntxdr.c8
-rw-r--r--fs/lockd/host.c42
-rw-r--r--fs/lockd/mon.c21
-rw-r--r--fs/lockd/netns.h12
-rw-r--r--fs/lockd/svc.c117
-rw-r--r--fs/lockd/svclock.c59
-rw-r--r--fs/nfs/Kconfig29
-rw-r--r--fs/nfs/blocklayout/blocklayout.c161
-rw-r--r--fs/nfs/blocklayout/blocklayout.h11
-rw-r--r--fs/nfs/blocklayout/blocklayoutdev.c46
-rw-r--r--fs/nfs/blocklayout/blocklayoutdm.c33
-rw-r--r--fs/nfs/blocklayout/extents.c2
-rw-r--r--fs/nfs/cache_lib.c61
-rw-r--r--fs/nfs/cache_lib.h10
-rw-r--r--fs/nfs/callback.c19
-rw-r--r--fs/nfs/callback.h3
-rw-r--r--fs/nfs/callback_proc.c99
-rw-r--r--fs/nfs/callback_xdr.c21
-rw-r--r--fs/nfs/client.c246
-rw-r--r--fs/nfs/delegation.c68
-rw-r--r--fs/nfs/delegation.h4
-rw-r--r--fs/nfs/dir.c27
-rw-r--r--fs/nfs/direct.c6
-rw-r--r--fs/nfs/dns_resolve.c130
-rw-r--r--fs/nfs/dns_resolve.h14
-rw-r--r--fs/nfs/file.c2
-rw-r--r--fs/nfs/fscache.c2
-rw-r--r--fs/nfs/idmap.c733
-rw-r--r--fs/nfs/inode.c119
-rw-r--r--fs/nfs/internal.h15
-rw-r--r--fs/nfs/mount_clnt.c16
-rw-r--r--fs/nfs/namespace.c5
-rw-r--r--fs/nfs/netns.h27
-rw-r--r--fs/nfs/nfs2xdr.c2
-rw-r--r--fs/nfs/nfs3acl.c2
-rw-r--r--fs/nfs/nfs3proc.c24
-rw-r--r--fs/nfs/nfs3xdr.c4
-rw-r--r--fs/nfs/nfs4_fs.h58
-rw-r--r--fs/nfs/nfs4filelayout.c272
-rw-r--r--fs/nfs/nfs4filelayout.h7
-rw-r--r--fs/nfs/nfs4filelayoutdev.c90
-rw-r--r--fs/nfs/nfs4namespace.c10
-rw-r--r--fs/nfs/nfs4proc.c559
-rw-r--r--fs/nfs/nfs4state.c355
-rw-r--r--fs/nfs/nfs4xdr.c697
-rw-r--r--fs/nfs/nfsroot.c2
-rw-r--r--fs/nfs/objlayout/objio_osd.c54
-rw-r--r--fs/nfs/objlayout/objlayout.c142
-rw-r--r--fs/nfs/objlayout/objlayout.h2
-rw-r--r--fs/nfs/pagelist.c92
-rw-r--r--fs/nfs/pnfs.c46
-rw-r--r--fs/nfs/pnfs.h98
-rw-r--r--fs/nfs/pnfs_dev.c4
-rw-r--r--fs/nfs/proc.c24
-rw-r--r--fs/nfs/read.c14
-rw-r--r--fs/nfs/super.c167
-rw-r--r--fs/nfs/sysctl.c2
-rw-r--r--fs/nfs/unlink.c45
-rw-r--r--fs/nfs/write.c213
-rw-r--r--fs/nfsd/nfs4callback.c8
-rw-r--r--fs/nfsd/nfs4state.c2
-rw-r--r--fs/nfsd/nfsctl.c6
-rw-r--r--fs/nfsd/nfssvc.c4
-rw-r--r--fs/nfsd/stats.c5
-rw-r--r--include/linux/key.h2
-rw-r--r--include/linux/lockd/bind.h1
-rw-r--r--include/linux/lockd/lockd.h7
-rw-r--r--include/linux/lockd/xdr4.h2
-rw-r--r--include/linux/nfs.h2
-rw-r--r--include/linux/nfs4.h7
-rw-r--r--include/linux/nfs_fs.h46
-rw-r--r--include/linux/nfs_fs_i.h4
-rw-r--r--include/linux/nfs_fs_sb.h23
-rw-r--r--include/linux/nfs_idmap.h22
-rw-r--r--include/linux/nfs_iostat.h2
-rw-r--r--include/linux/nfs_page.h27
-rw-r--r--include/linux/nfs_xdr.h65
-rw-r--r--include/linux/sunrpc/auth.h2
-rw-r--r--include/linux/sunrpc/bc_xprt.h2
-rw-r--r--include/linux/sunrpc/cache.h8
-rw-r--r--include/linux/sunrpc/clnt.h40
-rw-r--r--include/linux/sunrpc/debug.h26
-rw-r--r--include/linux/sunrpc/metrics.h6
-rw-r--r--include/linux/sunrpc/rpc_pipe_fs.h46
-rw-r--r--include/linux/sunrpc/sched.h24
-rw-r--r--include/linux/sunrpc/stats.h22
-rw-r--r--include/linux/sunrpc/svc.h13
-rw-r--r--include/linux/sunrpc/svc_xprt.h3
-rw-r--r--include/linux/sunrpc/svcauth.h3
-rw-r--r--include/linux/sunrpc/svcauth_gss.h2
-rw-r--r--include/linux/sunrpc/svcsock.h2
-rw-r--r--include/linux/sunrpc/xprt.h11
-rw-r--r--include/linux/sunrpc/xprtsock.h12
-rw-r--r--include/trace/events/sunrpc.h177
-rw-r--r--net/sunrpc/Kconfig13
-rw-r--r--net/sunrpc/addr.c26
-rw-r--r--net/sunrpc/auth_gss/auth_gss.c216
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_crypto.c7
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_mech.c2
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_seal.c2
-rw-r--r--net/sunrpc/auth_gss/svcauth_gss.c165
-rw-r--r--net/sunrpc/backchannel_rqst.c1
-rw-r--r--net/sunrpc/cache.c44
-rw-r--r--net/sunrpc/clnt.c548
-rw-r--r--net/sunrpc/netns.h14
-rw-r--r--net/sunrpc/rpc_pipe.c501
-rw-r--r--net/sunrpc/rpcb_clnt.c188
-rw-r--r--net/sunrpc/sched.c73
-rw-r--r--net/sunrpc/stats.c35
-rw-r--r--net/sunrpc/sunrpc.h2
-rw-r--r--net/sunrpc/sunrpc_syms.c17
-rw-r--r--net/sunrpc/svc.c98
-rw-r--r--net/sunrpc/svc_xprt.c51
-rw-r--r--net/sunrpc/svcauth_unix.c126
-rw-r--r--net/sunrpc/svcsock.c5
-rw-r--r--net/sunrpc/sysctl.c4
-rw-r--r--net/sunrpc/xprt.c80
-rw-r--r--net/sunrpc/xprtrdma/rpc_rdma.c9
-rw-r--r--net/sunrpc/xprtrdma/verbs.c17
-rw-r--r--net/sunrpc/xprtsock.c33
-rw-r--r--security/keys/key.c20
-rw-r--r--security/keys/keyctl.c18
127 files changed, 5217 insertions, 2987 deletions
diff --git a/Documentation/filesystems/nfs/idmapper.txt b/Documentation/filesystems/nfs/idmapper.txt
index 120fd3cf7fd9..fe03d10bb79a 100644
--- a/Documentation/filesystems/nfs/idmapper.txt
+++ b/Documentation/filesystems/nfs/idmapper.txt
@@ -4,13 +4,21 @@ ID Mapper
=========
Id mapper is used by NFS to translate user and group ids into names, and to
translate user and group names into ids. Part of this translation involves
-performing an upcall to userspace to request the information. Id mapper will
-user request-key to perform this upcall and cache the result. The program
-/usr/sbin/nfs.idmap should be called by request-key, and will perform the
-translation and initialize a key with the resulting information.
+performing an upcall to userspace to request the information. There are two
+ways NFS could obtain this information: placing a call to /sbin/request-key
+or by placing a call to the rpc.idmap daemon.
+
+NFS will attempt to call /sbin/request-key first. If this succeeds, the
+result will be cached using the generic request-key cache. This call should
+only fail if /etc/request-key.conf is not configured for the id_resolver key
+type, see the "Configuring" section below if you wish to use the request-key
+method.
+
+If the call to /sbin/request-key fails (if /etc/request-key.conf is not
+configured with the id_resolver key type), then the idmapper will ask the
+legacy rpc.idmap daemon for the id mapping. This result will be stored
+in a custom NFS idmap cache.
- NFS_USE_NEW_IDMAPPER must be selected when configuring the kernel to use this
- feature.
===========
Configuring
diff --git a/Documentation/filesystems/nfs/pnfs.txt b/Documentation/filesystems/nfs/pnfs.txt
index 983e14abe7e9..c7919c6e3bea 100644
--- a/Documentation/filesystems/nfs/pnfs.txt
+++ b/Documentation/filesystems/nfs/pnfs.txt
@@ -53,3 +53,57 @@ lseg maintains an extra reference corresponding to the NFS_LSEG_VALID
bit which holds it in the pnfs_layout_hdr's list. When the final lseg
is removed from the pnfs_layout_hdr's list, the NFS_LAYOUT_DESTROYED
bit is set, preventing any new lsegs from being added.
+
+layout drivers
+--------------
+
+PNFS utilizes what is called layout drivers. The STD defines 3 basic
+layout types: "files" "objects" and "blocks". For each of these types
+there is a layout-driver with a common function-vectors table which
+are called by the nfs-client pnfs-core to implement the different layout
+types.
+
+Files-layout-driver code is in: fs/nfs/nfs4filelayout.c && nfs4filelayoutdev.c
+Objects-layout-deriver code is in: fs/nfs/objlayout/.. directory
+Blocks-layout-deriver code is in: fs/nfs/blocklayout/.. directory
+
+objects-layout setup
+--------------------
+
+As part of the full STD implementation the objlayoutdriver.ko needs, at times,
+to automatically login to yet undiscovered iscsi/osd devices. For this the
+driver makes up-calles to a user-mode script called *osd_login*
+
+The path_name of the script to use is by default:
+ /sbin/osd_login.
+This name can be overridden by the Kernel module parameter:
+ objlayoutdriver.osd_login_prog
+
+If Kernel does not find the osd_login_prog path it will zero it out
+and will not attempt farther logins. An admin can then write new value
+to the objlayoutdriver.osd_login_prog Kernel parameter to re-enable it.
+
+The /sbin/osd_login is part of the nfs-utils package, and should usually
+be installed on distributions that support this Kernel version.
+
+The API to the login script is as follows:
+ Usage: $0 -u <URI> -o <OSDNAME> -s <SYSTEMID>
+ Options:
+ -u target uri e.g. iscsi://<ip>:<port>
+ (allways exists)
+ (More protocols can be defined in the future.
+ The client does not interpret this string it is
+ passed unchanged as recieved from the Server)
+ -o osdname of the requested target OSD
+ (Might be empty)
+ (A string which denotes the OSD name, there is a
+ limit of 64 chars on this string)
+ -s systemid of the requested target OSD
+ (Might be empty)
+ (This string, if not empty is always an hex
+ representation of the 20 bytes osd_system_id)
+
+blocks-layout setup
+-------------------
+
+TODO: Document the setup needs of the blocks layout driver
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 247dcfd62034..7c33ef8a1ba9 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1672,6 +1672,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
of returning the full 64-bit number.
The default is to return 64-bit inode numbers.
+ nfs.max_session_slots=
+ [NFSv4.1] Sets the maximum number of session slots
+ the client will attempt to negotiate with the server.
+ This limits the number of simultaneous RPC requests
+ that the client can send to the NFSv4.1 server.
+ Note that there is little point in setting this
+ value higher than the max_tcp_slot_table_limit.
+
nfs.nfs4_disable_idmapping=
[NFSv4] When set to the default of '1', this option
ensures that both the RPC level authentication
@@ -1685,6 +1693,21 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
back to using the idmapper.
To turn off this behaviour, set the value to '0'.
+ nfs.send_implementation_id =
+ [NFSv4.1] Send client implementation identification
+ information in exchange_id requests.
+ If zero, no implementation identification information
+ will be sent.
+ The default is to send the implementation identification
+ information.
+
+
+ objlayoutdriver.osd_login_prog=
+ [NFS] [OBJLAYOUT] sets the pathname to the program which
+ is used to automatically discover and login into new
+ osd-targets. Please see:
+ Documentation/filesystems/pnfs.txt for more explanations
+
nmi_debug= [KNL,AVR32,SH] Specify one or more actions to take
when a NMI is triggered.
Format: [state][,regs][,debounce][,die]
diff --git a/fs/lockd/clnt4xdr.c b/fs/lockd/clnt4xdr.c
index f848b52c67b1..3ddcbb1c0a43 100644
--- a/fs/lockd/clnt4xdr.c
+++ b/fs/lockd/clnt4xdr.c
@@ -598,7 +598,7 @@ static struct rpc_procinfo nlm4_procedures[] = {
PROC(GRANTED_RES, res, norep),
};
-struct rpc_version nlm_version4 = {
+const struct rpc_version nlm_version4 = {
.number = 4,
.nrprocs = ARRAY_SIZE(nlm4_procedures),
.procs = nlm4_procedures,
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index 8d4ea8351e3d..ba1dc2eebd1e 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -62,7 +62,8 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
host = nlmclnt_lookup_host(nlm_init->address, nlm_init->addrlen,
nlm_init->protocol, nlm_version,
- nlm_init->hostname, nlm_init->noresvport);
+ nlm_init->hostname, nlm_init->noresvport,
+ nlm_init->net);
if (host == NULL) {
lockd_down();
return ERR_PTR(-ENOLCK);
diff --git a/fs/lockd/clntxdr.c b/fs/lockd/clntxdr.c
index 180ac34feb9a..3d35e3e80c1c 100644
--- a/fs/lockd/clntxdr.c
+++ b/fs/lockd/clntxdr.c
@@ -596,19 +596,19 @@ static struct rpc_procinfo nlm_procedures[] = {
PROC(GRANTED_RES, res, norep),
};
-static struct rpc_version nlm_version1 = {
+static const struct rpc_version nlm_version1 = {
.number = 1,
.nrprocs = ARRAY_SIZE(nlm_procedures),
.procs = nlm_procedures,
};
-static struct rpc_version nlm_version3 = {
+static const struct rpc_version nlm_version3 = {
.number = 3,
.nrprocs = ARRAY_SIZE(nlm_procedures),
.procs = nlm_procedures,
};
-static struct rpc_version *nlm_versions[] = {
+static const struct rpc_version *nlm_versions[] = {
[1] = &nlm_version1,
[3] = &nlm_version3,
#ifdef CONFIG_LOCKD_V4
@@ -618,7 +618,7 @@ static struct rpc_version *nlm_versions[] = {
static struct rpc_stat nlm_rpc_stats;
-struct rpc_program nlm_program = {
+const struct rpc_program nlm_program = {
.name = "lockd",
.number = NLM_PROGRAM,
.nrvers = ARRAY_SIZE(nlm_versions),
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 6f29836ec0cb..eb75ca7c2d6e 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -17,6 +17,8 @@
#include <linux/lockd/lockd.h>
#include <linux/mutex.h>
+#include <linux/sunrpc/svc_xprt.h>
+
#include <net/ipv6.h>
#define NLMDBG_FACILITY NLMDBG_HOSTCACHE
@@ -54,6 +56,7 @@ struct nlm_lookup_host_info {
const char *hostname; /* remote's hostname */
const size_t hostname_len; /* it's length */
const int noresvport; /* use non-priv port */
+ struct net *net; /* network namespace to bind */
};
/*
@@ -155,6 +158,7 @@ static struct nlm_host *nlm_alloc_host(struct nlm_lookup_host_info *ni,
INIT_LIST_HEAD(&host->h_reclaim);
host->h_nsmhandle = nsm;
host->h_addrbuf = nsm->sm_addrbuf;
+ host->net = ni->net;
out:
return host;
@@ -206,7 +210,8 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
const unsigned short protocol,
const u32 version,
const char *hostname,
- int noresvport)
+ int noresvport,
+ struct net *net)
{
struct nlm_lookup_host_info ni = {
.server = 0,
@@ -217,6 +222,7 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
.hostname = hostname,
.hostname_len = strlen(hostname),
.noresvport = noresvport,
+ .net = net,
};
struct hlist_head *chain;
struct hlist_node *pos;
@@ -231,6 +237,8 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
chain = &nlm_client_hosts[nlm_hash_address(sap)];
hlist_for_each_entry(host, pos, chain, h_hash) {
+ if (host->net != net)
+ continue;
if (!rpc_cmp_addr(nlm_addr(host), sap))
continue;
@@ -318,6 +326,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
struct nsm_handle *nsm = NULL;
struct sockaddr *src_sap = svc_daddr(rqstp);
size_t src_len = rqstp->rq_daddrlen;
+ struct net *net = rqstp->rq_xprt->xpt_net;
struct nlm_lookup_host_info ni = {
.server = 1,
.sap = svc_addr(rqstp),
@@ -326,6 +335,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
.version = rqstp->rq_vers,
.hostname = hostname,
.hostname_len = hostname_len,
+ .net = net,
};
dprintk("lockd: %s(host='%*s', vers=%u, proto=%s)\n", __func__,
@@ -339,6 +349,8 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
chain = &nlm_server_hosts[nlm_hash_address(ni.sap)];
hlist_for_each_entry(host, pos, chain, h_hash) {
+ if (host->net != net)
+ continue;
if (!rpc_cmp_addr(nlm_addr(host), ni.sap))
continue;
@@ -431,7 +443,7 @@ nlm_bind_host(struct nlm_host *host)
.to_retries = 5U,
};
struct rpc_create_args args = {
- .net = &init_net,
+ .net = host->net,
.protocol = host->h_proto,
.address = nlm_addr(host),
.addrsize = host->h_addrlen,
@@ -553,12 +565,8 @@ void nlm_host_rebooted(const struct nlm_reboot *info)
nsm_release(nsm);
}
-/*
- * Shut down the hosts module.
- * Note that this routine is called only at server shutdown time.
- */
void
-nlm_shutdown_hosts(void)
+nlm_shutdown_hosts_net(struct net *net)
{
struct hlist_head *chain;
struct hlist_node *pos;
@@ -570,6 +578,8 @@ nlm_shutdown_hosts(void)
/* First, make all hosts eligible for gc */
dprintk("lockd: nuking all hosts...\n");
for_each_host(host, pos, chain, nlm_server_hosts) {
+ if (net && host->net != net)
+ continue;
host->h_expires = jiffies - 1;
if (host->h_rpcclnt) {
rpc_shutdown_client(host->h_rpcclnt);
@@ -580,15 +590,29 @@ nlm_shutdown_hosts(void)
/* Then, perform a garbage collection pass */
nlm_gc_hosts();
mutex_unlock(&nlm_host_mutex);
+}
+
+/*
+ * Shut down the hosts module.
+ * Note that this routine is called only at server shutdown time.
+ */
+void
+nlm_shutdown_hosts(void)
+{
+ struct hlist_head *chain;
+ struct hlist_node *pos;
+ struct nlm_host *host;
+
+ nlm_shutdown_hosts_net(NULL);
/* complain if any hosts are left */
if (nrhosts != 0) {
printk(KERN_WARNING "lockd: couldn't shutdown host module!\n");
dprintk("lockd: %lu hosts left:\n", nrhosts);
for_each_host(host, pos, chain, nlm_server_hosts) {
- dprintk(" %s (cnt %d use %d exp %ld)\n",
+ dprintk(" %s (cnt %d use %d exp %ld net %p)\n",
host->h_name, atomic_read(&host->h_count),
- host->h_inuse, host->h_expires);
+ host->h_inuse, host->h_expires, host->net);
}
}
}
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 65ba36b80a9e..7ef14b3c5bee 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -47,7 +47,7 @@ struct nsm_res {
u32 state;
};
-static struct rpc_program nsm_program;
+static const struct rpc_program nsm_program;
static LIST_HEAD(nsm_handles);
static DEFINE_SPINLOCK(nsm_lock);
@@ -62,14 +62,14 @@ static inline struct sockaddr *nsm_addr(const struct nsm_handle *nsm)
return (struct sockaddr *)&nsm->sm_addr;
}
-static struct rpc_clnt *nsm_create(void)
+static struct rpc_clnt *nsm_create(struct net *net)
{
struct sockaddr_in sin = {
.sin_family = AF_INET,
.sin_addr.s_addr = htonl(INADDR_LOOPBACK),
};
struct rpc_create_args args = {
- .net = &init_net,
+ .net = net,
.protocol = XPRT_TRANSPORT_UDP,
.address = (struct sockaddr *)&sin,
.addrsize = sizeof(sin),
@@ -83,7 +83,8 @@ static struct rpc_clnt *nsm_create(void)
return rpc_create(&args);
}
-static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res)
+static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res,
+ struct net *net)
{
struct rpc_clnt *clnt;
int status;
@@ -99,7 +100,7 @@ static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res)
.rpc_resp = res,
};
- clnt = nsm_create();
+ clnt = nsm_create(net);
if (IS_ERR(clnt)) {
status = PTR_ERR(clnt);
dprintk("lockd: failed to create NSM upcall transport, "
@@ -149,7 +150,7 @@ int nsm_monitor(const struct nlm_host *host)
*/
nsm->sm_mon_name = nsm_use_hostnames ? nsm->sm_name : nsm->sm_addrbuf;
- status = nsm_mon_unmon(nsm, NSMPROC_MON, &res);
+ status = nsm_mon_unmon(nsm, NSMPROC_MON, &res, host->net);
if (unlikely(res.status != 0))
status = -EIO;
if (unlikely(status < 0)) {
@@ -183,7 +184,7 @@ void nsm_unmonitor(const struct nlm_host *host)
&& nsm->sm_monitored && !nsm->sm_sticky) {
dprintk("lockd: nsm_unmonitor(%s)\n", nsm->sm_name);
- status = nsm_mon_unmon(nsm, NSMPROC_UNMON, &res);
+ status = nsm_mon_unmon(nsm, NSMPROC_UNMON, &res, host->net);
if (res.status != 0)
status = -EIO;
if (status < 0)
@@ -534,19 +535,19 @@ static struct rpc_procinfo nsm_procedures[] = {
},
};
-static struct rpc_version nsm_version1 = {
+static const struct rpc_version nsm_version1 = {
.number = 1,
.nrprocs = ARRAY_SIZE(nsm_procedures),
.procs = nsm_procedures
};
-static struct rpc_version * nsm_version[] = {
+static const struct rpc_version *nsm_version[] = {
[1] = &nsm_version1,
};
static struct rpc_stat nsm_stats;
-static struct rpc_program nsm_program = {
+static const struct rpc_program nsm_program = {
.name = "statd",
.number = NSM_PROGRAM,
.nrvers = ARRAY_SIZE(nsm_version),
diff --git a/fs/lockd/netns.h b/fs/lockd/netns.h
new file mode 100644
index 000000000000..ce227e0fbc5c
--- /dev/null
+++ b/fs/lockd/netns.h
@@ -0,0 +1,12 @@
+#ifndef __LOCKD_NETNS_H__
+#define __LOCKD_NETNS_H__
+
+#include <net/netns/generic.h>
+
+struct lockd_net {
+ unsigned int nlmsvc_users;
+};
+
+extern int lockd_net_id;
+
+#endif
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index c061b9aa7ddb..2774e1013b34 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -35,6 +35,8 @@
#include <linux/lockd/lockd.h>
#include <linux/nfs.h>
+#include "netns.h"
+
#define NLMDBG_FACILITY NLMDBG_SVC
#define LOCKD_BUFSIZE (1024 + NLMSVC_XDRSIZE)
#define ALLOWED_SIGS (sigmask(SIGKILL))
@@ -50,6 +52,8 @@ static struct task_struct *nlmsvc_task;
static struct svc_rqst *nlmsvc_rqst;
unsigned long nlmsvc_timeout;
+int lockd_net_id;
+
/*
* These can be set at insmod time (useful for NFS as root filesystem),
* and also changed through the sysctl interface. -- Jamie Lokier, Aug 2003
@@ -189,27 +193,29 @@ lockd(void *vrqstp)
}
static int create_lockd_listener(struct svc_serv *serv, const char *name,
- const int family, const unsigned short port)
+ struct net *net, const int family,
+ const unsigned short port)
{
struct svc_xprt *xprt;
- xprt = svc_find_xprt(serv, name, family, 0);
+ xprt = svc_find_xprt(serv, name, net, family, 0);
if (xprt == NULL)
- return svc_create_xprt(serv, name, &init_net, family, port,
+ return svc_create_xprt(serv, name, net, family, port,
SVC_SOCK_DEFAULTS);
svc_xprt_put(xprt);
return 0;
}
-static int create_lockd_family(struct svc_serv *serv, const int family)
+static int create_lockd_family(struct svc_serv *serv, struct net *net,
+ const int family)
{
int err;
- err = create_lockd_listener(serv, "udp", family, nlm_udpport);
+ err = create_lockd_listener(serv, "udp", net, family, nlm_udpport);
if (err < 0)
return err;
- return create_lockd_listener(serv, "tcp", family, nlm_tcpport);
+ return create_lockd_listener(serv, "tcp", net, family, nlm_tcpport);
}
/*
@@ -222,16 +228,16 @@ static int create_lockd_family(struct svc_serv *serv, const int family)
* Returns zero if all listeners are available; otherwise a
* negative errno value is returned.
*/
-static int make_socks(struct svc_serv *serv)
+static int make_socks(struct svc_serv *serv, struct net *net)
{
static int warned;
int err;
- err = create_lockd_family(serv, PF_INET);
+ err = create_lockd_family(serv, net, PF_INET);
if (err < 0)
goto out_err;
- err = create_lockd_family(serv, PF_INET6);
+ err = create_lockd_family(serv, net, PF_INET6);
if (err < 0 && err != -EAFNOSUPPORT)
goto out_err;
@@ -245,6 +251,47 @@ out_err:
return err;
}
+static int lockd_up_net(struct net *net)
+{
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+ struct svc_serv *serv = nlmsvc_rqst->rq_server;
+ int error;
+
+ if (ln->nlmsvc_users)
+ return 0;
+
+ error = svc_rpcb_setup(serv, net);
+ if (error)
+ goto err_rpcb;
+
+ error = make_socks(serv, net);
+ if (error < 0)
+ goto err_socks;
+ return 0;
+
+err_socks:
+ svc_rpcb_cleanup(serv, net);
+err_rpcb:
+ return error;
+}
+
+static void lockd_down_net(struct net *net)
+{
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+ struct svc_serv *serv = nlmsvc_rqst->rq_server;
+
+ if (ln->nlmsvc_users) {
+ if (--ln->nlmsvc_users == 0) {
+ nlm_shutdown_hosts_net(net);
+ svc_shutdown_net(serv, net);
+ }
+ } else {
+ printk(KERN_ERR "lockd_down_net: no users! task=%p, net=%p\n",
+ nlmsvc_task, net);
+ BUG();
+ }
+}
+
/*
* Bring up the lockd process if it's not already up.
*/
@@ -252,13 +299,16 @@ int lockd_up(void)
{
struct svc_serv *serv;
int error = 0;
+ struct net *net = current->nsproxy->net_ns;
mutex_lock(&nlmsvc_mutex);
/*
* Check whether we're already up and running.
*/
- if (nlmsvc_rqst)
+ if (nlmsvc_rqst) {
+ error = lockd_up_net(net);
goto out;
+ }
/*
* Sanity check: if there's no pid,
@@ -275,7 +325,7 @@ int lockd_up(void)
goto out;
}
- error = make_socks(serv);
+ error = make_socks(serv, net);
if (error < 0)
goto destroy_and_out;
@@ -313,8 +363,12 @@ int lockd_up(void)
destroy_and_out:
svc_destroy(serv);
out:
- if (!error)
+ if (!error) {
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+
+ ln->nlmsvc_users++;
nlmsvc_users++;
+ }
mutex_unlock(&nlmsvc_mutex);
return error;
}
@@ -328,8 +382,10 @@ lockd_down(void)
{
mutex_lock(&nlmsvc_mutex);
if (nlmsvc_users) {
- if (--nlmsvc_users)
+ if (--nlmsvc_users) {
+ lockd_down_net(current->nsproxy->net_ns);
goto out;
+ }
} else {
printk(KERN_ERR "lockd_down: no users! task=%p\n",
nlmsvc_task);
@@ -497,24 +553,55 @@ module_param_call(nlm_tcpport, param_set_port, param_get_int,
module_param(nsm_use_hostnames, bool, 0644);
module_param(nlm_max_connections, uint, 0644);
+static int lockd_init_net(struct net *net)
+{
+ return 0;
+}
+
+static void lockd_exit_net(struct net *net)
+{
+}
+
+static struct pernet_operations lockd_net_ops = {
+ .init = lockd_init_net,
+ .exit = lockd_exit_net,
+ .id = &lockd_net_id,
+ .size = sizeof(struct lockd_net),
+};
+
+
/*
* Initialising and terminating the module.
*/
static int __init init_nlm(void)
{
+ int err;
+
#ifdef CONFIG_SYSCTL
+ err = -ENOMEM;
nlm_sysctl_table = register_sysctl_table(nlm_sysctl_root);
- return nlm_sysctl_table ? 0 : -ENOMEM;
-#else
+ if (nlm_sysctl_table == NULL)
+ goto err_sysctl;
+#endif
+ err = register_pernet_subsys(&lockd_net_ops);
+ if (err)
+ goto err_pernet;
return 0;
+
+err_pernet:
+#ifdef CONFIG_SYSCTL
+ unregister_sysctl_table(nlm_sysctl_table);
#endif
+err_sysctl:
+ return err;
}
static void __exit exit_nlm(void)
{
/* FIXME: delete all NLM clients */
nlm_shutdown_hosts();
+ unregister_pernet_subsys(&lockd_net_ops);
#ifdef CONFIG_SYSCTL
unregister_sysctl_table(nlm_sysctl_table);
#endif
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index f0179c3745d2..e46353f41a42 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -46,7 +46,6 @@ static void nlmsvc_remove_block(struct nlm_block *block);
static int nlmsvc_setgrantargs(struct nlm_rqst *call, struct nlm_lock *lock);
static void nlmsvc_freegrantargs(struct nlm_rqst *call);
static const struct rpc_call_ops nlmsvc_grant_ops;
-static const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie);
/*
* The list of blocked locks to retry
@@ -54,6 +53,35 @@ static const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie);
static LIST_HEAD(nlm_blocked);
static DEFINE_SPINLOCK(nlm_blocked_lock);
+#ifdef LOCKD_DEBUG
+static const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie)
+{
+ /*
+ * We can get away with a static buffer because we're only
+ * called with BKL held.
+ */
+ static char buf[2*NLM_MAXCOOKIELEN+1];
+ unsigned int i, len = sizeof(buf);
+ char *p = buf;
+
+ len--; /* allow for trailing \0 */
+ if (len < 3)
+ return "???";
+ for (i = 0 ; i < cookie->len ; i++) {
+ if (len < 2) {
+ strcpy(p-3, "...");
+ break;
+ }
+ sprintf(p, "%02x", cookie->data[i]);
+ p += 2;
+ len -= 2;
+ }
+ *p = '\0';
+
+ return buf;
+}
+#endif
+
/*
* Insert a blocked lock into the global list
*/
@@ -935,32 +963,3 @@ nlmsvc_retry_blocked(void)
return timeout;
}
-
-#ifdef RPC_DEBUG
-static const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie)
-{
- /*
- * We can get away with a static buffer because we're only
- * called with BKL held.
- */
- static char buf[2*NLM_MAXCOOKIELEN+1];
- unsigned int i, len = sizeof(buf);
- char *p = buf;
-
- len--; /* allow for trailing \0 */
- if (len < 3)
- return "???";
- for (i = 0 ; i < cookie->len ; i++) {
- if (len < 2) {
- strcpy(p-3, "...");
- break;
- }
- sprintf(p, "%02x", cookie->data[i]);
- p += 2;
- len -= 2;
- }
- *p = '\0';
-
- return buf;
-}
-#endif
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index dbcd82126aed..2a0e6c599147 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -64,6 +64,7 @@ config NFS_V4
bool "NFS client support for NFS version 4"
depends on NFS_FS
select SUNRPC_GSS
+ select KEYS
help
This option enables support for version 4 of the NFS protocol
(RFC 3530) in the kernel's NFS client.
@@ -98,6 +99,18 @@ config PNFS_OBJLAYOUT
depends on NFS_FS && NFS_V4_1 && SCSI_OSD_ULD
default m
+config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
+ string "NFSv4.1 Implementation ID Domain"
+ depends on NFS_V4_1
+ default "kernel.org"
+ help
+ This option defines the domain portion of the implementation ID that
+ may be sent in the NFS exchange_id operation. The value must be in
+ the format of a DNS domain name and should be set to the DNS domain
+ name of the distribution.
+ If the NFS client is unchanged from the upstream kernel, this
+ option should be set to the default "kernel.org".
+
config ROOT_NFS
bool "Root file system on NFS"
depends on NFS_FS=y && IP_PNP
@@ -130,16 +143,10 @@ config NFS_USE_KERNEL_DNS
bool
depends on NFS_V4 && !NFS_USE_LEGACY_DNS
select DNS_RESOLVER
- select KEYS
default y
-config NFS_USE_NEW_IDMAPPER
- bool "Use the new idmapper upcall routine"
- depends on NFS_V4 && KEYS
- help
- Say Y here if you want NFS to use the new idmapper upcall functions.
- You will need /sbin/request-key (usually provided by the keyutils
- package). For details, read
- <file:Documentation/filesystems/nfs/idmapper.txt>.
-
- If you are unsure, say N.
+config NFS_DEBUG
+ bool
+ depends on NFS_FS && SUNRPC_DEBUG
+ select CRC32
+ default y
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index 48cfac31f64c..9c94297bb70e 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -46,9 +46,6 @@ MODULE_LICENSE("GPL");
MODULE_AUTHOR("Andy Adamson <andros@citi.umich.edu>");
MODULE_DESCRIPTION("The NFSv4.1 pNFS Block layout driver");
-struct dentry *bl_device_pipe;
-wait_queue_head_t bl_wq;
-
static void print_page(struct page *page)
{
dprintk("PRINTPAGE page %p\n", page);
@@ -236,12 +233,11 @@ bl_read_pagelist(struct nfs_read_data *rdata)
sector_t isect, extent_length = 0;
struct parallel_io *par;
loff_t f_offset = rdata->args.offset;
- size_t count = rdata->args.count;
struct page **pages = rdata->args.pages;
int pg_index = rdata->args.pgbase >> PAGE_CACHE_SHIFT;
- dprintk("%s enter nr_pages %u offset %lld count %Zd\n", __func__,
- rdata->npages, f_offset, count);
+ dprintk("%s enter nr_pages %u offset %lld count %u\n", __func__,
+ rdata->npages, f_offset, (unsigned int)rdata->args.count);
par = alloc_parallel(rdata);
if (!par)
@@ -1025,10 +1021,128 @@ static const struct rpc_pipe_ops bl_upcall_ops = {
.destroy_msg = bl_pipe_destroy_msg,
};
+static struct dentry *nfs4blocklayout_register_sb(struct super_block *sb,
+ struct rpc_pipe *pipe)
+{
+ struct dentry *dir, *dentry;
+
+ dir = rpc_d_lookup_sb(sb, NFS_PIPE_DIRNAME);
+ if (dir == NULL)
+ return ERR_PTR(-ENOENT);
+ dentry = rpc_mkpipe_dentry(dir, "blocklayout", NULL, pipe);
+ dput(dir);
+ return dentry;
+}
+
+static void nfs4blocklayout_unregister_sb(struct super_block *sb,
+ struct rpc_pipe *pipe)
+{
+ if (pipe->dentry)
+ rpc_unlink(pipe->dentry);
+}
+
+static int rpc_pipefs_event(struct notifier_block *nb, unsigned long event,
+ void *ptr)
+{
+ struct super_block *sb = ptr;
+ struct net *net = sb->s_fs_info;
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+ struct dentry *dentry;
+ int ret = 0;
+
+ if (!try_module_get(THIS_MODULE))
+ return 0;
+
+ if (nn->bl_device_pipe == NULL) {
+ module_put(THIS_MODULE);
+ return 0;
+ }
+
+ switch (event) {
+ case RPC_PIPEFS_MOUNT:
+ dentry = nfs4blocklayout_register_sb(sb, nn->bl_device_pipe);
+ if (IS_ERR(dentry)) {
+ ret = PTR_ERR(dentry);
+ break;
+ }
+ nn->bl_device_pipe->dentry = dentry;
+ break;
+ case RPC_PIPEFS_UMOUNT:
+ if (nn->bl_device_pipe->dentry)
+ nfs4blocklayout_unregister_sb(sb, nn->bl_device_pipe);
+ break;
+ default:
+ ret = -ENOTSUPP;
+ break;
+ }
+ module_put(THIS_MODULE);
+ return ret;
+}
+
+static struct notifier_block nfs4blocklayout_block = {
+ .notifier_call = rpc_pipefs_event,
+};
+
+static struct dentry *nfs4blocklayout_register_net(struct net *net,
+ struct rpc_pipe *pipe)
+{
+ struct super_block *pipefs_sb;
+ struct dentry *dentry;
+
+ pipefs_sb = rpc_get_sb_net(net);
+ if (!pipefs_sb)
+ return NULL;
+ dentry = nfs4blocklayout_register_sb(pipefs_sb, pipe);
+ rpc_put_sb_net(net);
+ return dentry;
+}
+
+static void nfs4blocklayout_unregister_net(struct net *net,
+ struct rpc_pipe *pipe)
+{
+ struct super_block *pipefs_sb;
+
+ pipefs_sb = rpc_get_sb_net(net);
+ if (pipefs_sb) {
+ nfs4blocklayout_unregister_sb(pipefs_sb, pipe);
+ rpc_put_sb_net(net);
+ }
+}
+
+static int nfs4blocklayout_net_init(struct net *net)
+{
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+ struct dentry *dentry;
+
+ init_waitqueue_head(&nn->bl_wq);
+ nn->bl_device_pipe = rpc_mkpipe_data(&bl_upcall_ops, 0);
+ if (IS_ERR(nn->bl_device_pipe))
+ return PTR_ERR(nn->bl_device_pipe);
+ dentry = nfs4blocklayout_register_net(net, nn->bl_device_pipe);
+ if (IS_ERR(dentry)) {
+ rpc_destroy_pipe_data(nn->bl_device_pipe);
+ return PTR_ERR(dentry);
+ }
+ nn->bl_device_pipe->dentry = dentry;
+ return 0;
+}
+
+static void nfs4blocklayout_net_exit(struct net *net)
+{
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+
+ nfs4blocklayout_unregister_net(net, nn->bl_device_pipe);
+ rpc_destroy_pipe_data(nn->bl_device_pipe);
+ nn->bl_device_pipe = NULL;
+}
+
+static struct pernet_operations nfs4blocklayout_net_ops = {
+ .init = nfs4blocklayout_net_init,
+ .exit = nfs4blocklayout_net_exit,
+};
+
static int __init nfs4blocklayout_init(void)
{
- struct vfsmount *mnt;
- struct path path;
int ret;
dprintk("%s: NFSv4 Block Layout Driver Registering...\n", __func__);
@@ -1037,32 +1151,17 @@ static int __init nfs4blocklayout_init(void)
if (ret)
goto out;
- init_waitqueue_head(&bl_wq);
-
- mnt = rpc_get_mount();
- if (IS_ERR(mnt)) {
- ret = PTR_ERR(mnt);
+ ret = rpc_pipefs_notifier_register(&nfs4blocklayout_block);
+ if (ret)
goto out_remove;
- }
-
- ret = vfs_path_lookup(mnt->mnt_root,
- mnt,
- NFS_PIPE_DIRNAME, 0, &path);
+ ret = register_pernet_subsys(&nfs4blocklayout_net_ops);
if (ret)
- goto out_putrpc;
-
- bl_device_pipe = rpc_mkpipe(path.dentry, "blocklayout", NULL,
- &bl_upcall_ops, 0);
- path_put(&path);
- if (IS_ERR(bl_device_pipe)) {
- ret = PTR_ERR(bl_device_pipe);
- goto out_putrpc;
- }
+ goto out_notifier;
out:
return ret;
-out_putrpc:
- rpc_put_mount();
+out_notifier:
+ rpc_pipefs_notifier_unregister(&nfs4blocklayout_block);
out_remove:
pnfs_unregister_layoutdriver(&blocklayout_type);
return ret;
@@ -1073,9 +1172,9 @@ static void __exit nfs4blocklayout_exit(void)
dprintk("%s: NFSv4 Block Layout Driver Unregistering...\n",
__func__);
+ rpc_pipefs_notifier_unregister(&nfs4blocklayout_block);
+ unregister_pernet_subsys(&nfs4blocklayout_net_ops);
pnfs_unregister_layoutdriver(&blocklayout_type);
- rpc_unlink(bl_device_pipe);
- rpc_put_mount();
}
MODULE_ALIAS("nfs-layouttype4-3");
diff --git a/fs/nfs/blocklayout/blocklayout.h b/fs/nfs/blocklayout/blocklayout.h
index e31a2df28e70..03350690118e 100644
--- a/fs/nfs/blocklayout/blocklayout.h
+++ b/fs/nfs/blocklayout/blocklayout.h
@@ -37,6 +37,7 @@
#include <linux/sunrpc/rpc_pipe_fs.h>
#include "../pnfs.h"
+#include "../netns.h"
#define PAGE_CACHE_SECTORS (PAGE_CACHE_SIZE >> SECTOR_SHIFT)
#define PAGE_CACHE_SECTOR_SHIFT (PAGE_CACHE_SHIFT - SECTOR_SHIFT)
@@ -50,6 +51,7 @@ struct pnfs_block_dev {
struct list_head bm_node;
struct nfs4_deviceid bm_mdevid; /* associated devid */
struct block_device *bm_mdev; /* meta device itself */
+ struct net *net;
};
enum exstate4 {
@@ -151,9 +153,9 @@ BLK_LSEG2EXT(struct pnfs_layout_segment *lseg)
return BLK_LO2EXT(lseg->pls_layout);
}
-struct bl_dev_msg {
- int32_t status;
- uint32_t major, minor;
+struct bl_pipe_msg {
+ struct rpc_pipe_msg msg;
+ wait_queue_head_t *bl_wq;
};
struct bl_msg_hdr {
@@ -161,9 +163,6 @@ struct bl_msg_hdr {
u16 totallen; /* length of entire message, including hdr itself */
};
-extern struct dentry *bl_device_pipe;
-extern wait_queue_head_t bl_wq;
-
#define BL_DEVICE_UMOUNT 0x0 /* Umount--delete devices */
#define BL_DEVICE_MOUNT 0x1 /* Mount--create devices*/
#define BL_DEVICE_REQUEST_INIT 0x0 /* Start request */
diff --git a/fs/nfs/blocklayout/blocklayoutdev.c b/fs/nfs/blocklayout/blocklayoutdev.c
index d08ba9107fde..a5c88a554d92 100644
--- a/fs/nfs/blocklayout/blocklayoutdev.c
+++ b/fs/nfs/blocklayout/blocklayoutdev.c
@@ -46,7 +46,7 @@ static int decode_sector_number(__be32 **rp, sector_t *sp)
*rp = xdr_decode_hyper(*rp, &s);
if (s & 0x1ff) {
- printk(KERN_WARNING "%s: sector not aligned\n", __func__);
+ printk(KERN_WARNING "NFS: %s: sector not aligned\n", __func__);
return -1;
}
*sp = s >> SECTOR_SHIFT;
@@ -79,27 +79,30 @@ int nfs4_blkdev_put(struct block_device *bdev)
return blkdev_put(bdev, FMODE_READ);
}
-static struct bl_dev_msg bl_mount_reply;
-
ssize_t bl_pipe_downcall(struct file *filp, const char __user *src,
size_t mlen)
{
+ struct nfs_net *nn = net_generic(filp->f_dentry->d_sb->s_fs_info,
+ nfs_net_id);
+
if (mlen != sizeof (struct bl_dev_msg))
return -EINVAL;
- if (copy_from_user(&bl_mount_reply, src, mlen) != 0)
+ if (copy_from_user(&nn->bl_mount_reply, src, mlen) != 0)
return -EFAULT;
- wake_up(&bl_wq);
+ wake_up(&nn->bl_wq);
return mlen;
}
void bl_pipe_destroy_msg(struct rpc_pipe_msg *msg)
{
+ struct bl_pipe_msg *bl_pipe_msg = container_of(msg, struct bl_pipe_msg, msg);
+
if (msg->errno >= 0)
return;
- wake_up(&bl_wq);
+ wake_up(bl_pipe_msg->bl_wq);
}
/*
@@ -111,29 +114,33 @@ nfs4_blk_decode_device(struct nfs_server *server,
{
struct pnfs_block_dev *rv;
struct block_device *bd = NULL;
- struct rpc_pipe_msg msg;
+ struct bl_pipe_msg bl_pipe_msg;
+ struct rpc_pipe_msg *msg = &bl_pipe_msg.msg;
struct bl_msg_hdr bl_msg = {
.type = BL_DEVICE_MOUNT,
.totallen = dev->mincount,
};
uint8_t *dataptr;
DECLARE_WAITQUEUE(wq, current);
- struct bl_dev_msg *reply = &bl_mount_reply;
int offset, len, i, rc;
+ struct net *net = server->nfs_client->net;
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+ struct bl_dev_msg *reply = &nn->bl_mount_reply;
dprintk("%s CREATING PIPEFS MESSAGE\n", __func__);
dprintk("%s: deviceid: %s, mincount: %d\n", __func__, dev->dev_id.data,
dev->mincount);
- memset(&msg, 0, sizeof(msg));
- msg.data = kzalloc(sizeof(bl_msg) + dev->mincount, GFP_NOFS);
- if (!msg.data) {
+ bl_pipe_msg.bl_wq = &nn->bl_wq;
+ memset(msg, 0, sizeof(*msg));
+ msg->data = kzalloc(sizeof(bl_msg) + dev->mincount, GFP_NOFS);
+ if (!msg->data) {
rv = ERR_PTR(-ENOMEM);
goto out;
}
- memcpy(msg.data, &bl_msg, sizeof(bl_msg));
- dataptr = (uint8_t *) msg.data;
+ memcpy(msg->data, &bl_msg, sizeof(bl_msg));
+ dataptr = (uint8_t *) msg->data;
len = dev->mincount;
offset = sizeof(bl_msg);
for (i = 0; len > 0; i++) {
@@ -142,13 +149,13 @@ nfs4_blk_decode_device(struct nfs_server *server,
len -= PAGE_CACHE_SIZE;
offset += PAGE_CACHE_SIZE;
}
- msg.len = sizeof(bl_msg) + dev->mincount;
+ msg->len = sizeof(bl_msg) + dev->mincount;
dprintk("%s CALLING USERSPACE DAEMON\n", __func__);
- add_wait_queue(&bl_wq, &wq);
- rc = rpc_queue_upcall(bl_device_pipe->d_inode, &msg);
+ add_wait_queue(&nn->bl_wq, &wq);
+ rc = rpc_queue_upcall(nn->bl_device_pipe, msg);
if (rc < 0) {
- remove_wait_queue(&bl_wq, &wq);
+ remove_wait_queue(&nn->bl_wq, &wq);
rv = ERR_PTR(rc);
goto out;
}
@@ -156,7 +163,7 @@ nfs4_blk_decode_device(struct nfs_server *server,
set_current_state(TASK_UNINTERRUPTIBLE);
schedule();
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&bl_wq, &wq);
+ remove_wait_queue(&nn->bl_wq, &wq);
if (reply->status != BL_DEVICE_REQUEST_PROC) {
dprintk("%s failed to open device: %d\n",
@@ -181,13 +188,14 @@ nfs4_blk_decode_device(struct nfs_server *server,
rv->bm_mdev = bd;
memcpy(&rv->bm_mdevid, &dev->dev_id, sizeof(struct nfs4_deviceid));
+ rv->net = net;
dprintk("%s Created device %s with bd_block_size %u\n",
__func__,
bd->bd_disk->disk_name,
bd->bd_block_size);
out:
- kfree(msg.data);
+ kfree(msg->data);
return rv;
}
diff --git a/fs/nfs/blocklayout/blocklayoutdm.c b/fs/nfs/blocklayout/blocklayoutdm.c
index d055c7558073..737d839bc17b 100644
--- a/fs/nfs/blocklayout/blocklayoutdm.c
+++ b/fs/nfs/blocklayout/blocklayoutdm.c
@@ -38,9 +38,10 @@
#define NFSDBG_FACILITY NFSDBG_PNFS_LD
-static void dev_remove(dev_t dev)
+static void dev_remove(struct net *net, dev_t dev)
{
- struct rpc_pipe_msg msg;
+ struct bl_pipe_msg bl_pipe_msg;
+ struct rpc_pipe_msg *msg = &bl_pipe_msg.msg;
struct bl_dev_msg bl_umount_request;
struct bl_msg_hdr bl_msg = {
.type = BL_DEVICE_UMOUNT,
@@ -48,36 +49,38 @@ static void dev_remove(dev_t dev)
};
uint8_t *dataptr;
DECLARE_WAITQUEUE(wq, current);
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
dprintk("Entering %s\n", __func__);
- memset(&msg, 0, sizeof(msg));
- msg.data = kzalloc(1 + sizeof(bl_umount_request), GFP_NOFS);
- if (!msg.data)
+ bl_pipe_msg.bl_wq = &nn->bl_wq;
+ memset(msg, 0, sizeof(*msg));
+ msg->data = kzalloc(1 + sizeof(bl_umount_request), GFP_NOFS);
+ if (!msg->data)
goto out;
memset(&bl_umount_request, 0, sizeof(bl_umount_request));
bl_umount_request.major = MAJOR(dev);
bl_umount_request.minor = MINOR(dev);
- memcpy(msg.data, &bl_msg, sizeof(bl_msg));
- dataptr = (uint8_t *) msg.data;
+ memcpy(msg->data, &bl_msg, sizeof(bl_msg));
+ dataptr = (uint8_t *) msg->data;
memcpy(&dataptr[sizeof(bl_msg)], &bl_umount_request, sizeof(bl_umount_request));
- msg.len = sizeof(bl_msg) + bl_msg.totallen;
+ msg->len = sizeof(bl_msg) + bl_msg.totallen;
- add_wait_queue(&bl_wq, &wq);
- if (rpc_queue_upcall(bl_device_pipe->d_inode, &msg) < 0) {
- remove_wait_queue(&bl_wq, &wq);
+ add_wait_queue(&nn->bl_wq, &wq);
+ if (rpc_queue_upcall(nn->bl_device_pipe, msg) < 0) {
+ remove_wait_queue(&nn->bl_wq, &wq);
goto out;
}
set_current_state(TASK_UNINTERRUPTIBLE);
schedule();
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&bl_wq, &wq);
+ remove_wait_queue(&nn->bl_wq, &wq);
out:
- kfree(msg.data);
+ kfree(msg->data);
}
/*
@@ -90,10 +93,10 @@ static void nfs4_blk_metadev_release(struct pnfs_block_dev *bdev)
dprintk("%s Releasing\n", __func__);
rv = nfs4_blkdev_put(bdev->bm_mdev);
if (rv)
- printk(KERN_ERR "%s nfs4_blkdev_put returns %d\n",
+ printk(KERN_ERR "NFS: %s nfs4_blkdev_put returns %d\n",
__func__, rv);
- dev_remove(bdev->bm_mdev->bd_dev);
+ dev_remove(bdev->net, bdev->bm_mdev->bd_dev);
}
void bl_free_block_dev(struct pnfs_block_dev *bdev)
diff --git a/fs/nfs/blocklayout/extents.c b/fs/nfs/blocklayout/extents.c
index 1abac09f7cd5..1f9a6032796b 100644
--- a/fs/nfs/blocklayout/extents.c
+++ b/fs/nfs/blocklayout/extents.c
@@ -147,7 +147,7 @@ static int _preload_range(struct pnfs_inval_markings *marks,
count = (int)(end - start) / (int)tree->mtt_step_size;
/* Pre-malloc what memory we might need */
- storage = kmalloc(sizeof(*storage) * count, GFP_NOFS);
+ storage = kcalloc(count, sizeof(*storage), GFP_NOFS);
if (!storage)
return -ENOMEM;
for (i = 0; i < count; i++) {
diff --git a/fs/nfs/cache_lib.c b/fs/nfs/cache_lib.c
index c98b439332fc..dded26368111 100644
--- a/fs/nfs/cache_lib.c
+++ b/fs/nfs/cache_lib.c
@@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/sunrpc/cache.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
+#include <net/net_namespace.h>
#include "cache_lib.h"
@@ -111,30 +112,54 @@ int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq)
return 0;
}
-int nfs_cache_register(struct cache_detail *cd)
+int nfs_cache_register_sb(struct super_block *sb, struct cache_detail *cd)
{
- struct vfsmount *mnt;
- struct path path;
int ret;
+ struct dentry *dir;
- mnt = rpc_get_mount();
- if (IS_ERR(mnt))
- return PTR_ERR(mnt);
- ret = vfs_path_lookup(mnt->mnt_root, mnt, "/cache", 0, &path);
- if (ret)
- goto err;
- ret = sunrpc_cache_register_pipefs(path.dentry, cd->name, 0600, cd);
- path_put(&path);
- if (!ret)
- return ret;
-err:
- rpc_put_mount();
+ dir = rpc_d_lookup_sb(sb, "cache");
+ BUG_ON(dir == NULL);
+ ret = sunrpc_cache_register_pipefs(dir, cd->name, 0600, cd);
+ dput(dir);
return ret;
}
-void nfs_cache_unregister(struct cache_detail *cd)
+int nfs_cache_register_net(struct net *net, struct cache_detail *cd)
{
- sunrpc_cache_unregister_pipefs(cd);
- rpc_put_mount();
+ struct super_block *pipefs_sb;
+ int ret = 0;
+
+ pipefs_sb = rpc_get_sb_net(net);
+ if (pipefs_sb) {
+ ret = nfs_cache_register_sb(pipefs_sb, cd);
+ rpc_put_sb_net(net);
+ }
+ return ret;
+}
+
+void nfs_cache_unregister_sb(struct super_block *sb, struct cache_detail *cd)
+{
+ if (cd->u.pipefs.dir)
+ sunrpc_cache_unregister_pipefs(cd);
+}
+
+void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd)
+{
+ struct super_block *pipefs_sb;
+
+ pipefs_sb = rpc_get_sb_net(net);
+ if (pipefs_sb) {
+ nfs_cache_unregister_sb(pipefs_sb, cd);
+ rpc_put_sb_net(net);
+ }
+}
+
+void nfs_cache_init(struct cache_detail *cd)
+{
+ sunrpc_init_cache_detail(cd);
}
+void nfs_cache_destroy(struct cache_detail *cd)
+{
+ sunrpc_destroy_cache_detail(cd);
+}
diff --git a/fs/nfs/cache_lib.h b/fs/nfs/cache_lib.h
index 7cf6cafcc007..317db95e37f8 100644
--- a/fs/nfs/cache_lib.h
+++ b/fs/nfs/cache_lib.h
@@ -23,5 +23,11 @@ extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void);
extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq);
extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq);
-extern int nfs_cache_register(struct cache_detail *cd);
-extern void nfs_cache_unregister(struct cache_detail *cd);
+extern void nfs_cache_init(struct cache_detail *cd);
+extern void nfs_cache_destroy(struct cache_detail *cd);
+extern int nfs_cache_register_net(struct net *net, struct cache_detail *cd);
+extern void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd);
+extern int nfs_cache_register_sb(struct super_block *sb,
+ struct cache_detail *cd);
+extern void nfs_cache_unregister_sb(struct super_block *sb,
+ struct cache_detail *cd);
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 516f3375e067..eb95f5091c1a 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -85,7 +85,7 @@ nfs4_callback_svc(void *vrqstp)
}
if (err < 0) {
if (err != preverr) {
- printk(KERN_WARNING "%s: unexpected error "
+ printk(KERN_WARNING "NFS: %s: unexpected error "
"from svc_recv (%d)\n", __func__, err);
preverr = err;
}
@@ -101,12 +101,12 @@ nfs4_callback_svc(void *vrqstp)
/*
* Prepare to bring up the NFSv4 callback service
*/
-struct svc_rqst *
-nfs4_callback_up(struct svc_serv *serv)
+static struct svc_rqst *
+nfs4_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
{
int ret;
- ret = svc_create_xprt(serv, "tcp", &init_net, PF_INET,
+ ret = svc_create_xprt(serv, "tcp", xprt->xprt_net, PF_INET,
nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
if (ret <= 0)
goto out_err;
@@ -114,7 +114,7 @@ nfs4_callback_up(struct svc_serv *serv)
dprintk("NFS: Callback listener port = %u (af %u)\n",
nfs_callback_tcpport, PF_INET);
- ret = svc_create_xprt(serv, "tcp", &init_net, PF_INET6,
+ ret = svc_create_xprt(serv, "tcp", xprt->xprt_net, PF_INET6,
nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
if (ret > 0) {
nfs_callback_tcpport6 = ret;
@@ -172,7 +172,7 @@ nfs41_callback_svc(void *vrqstp)
/*
* Bring up the NFSv4.1 callback service
*/
-struct svc_rqst *
+static struct svc_rqst *
nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
{
struct svc_rqst *rqstp;
@@ -183,7 +183,7 @@ nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
* fore channel connection.
* Returns the input port (0) and sets the svc_serv bc_xprt on success
*/
- ret = svc_create_xprt(serv, "tcp-bc", &init_net, PF_INET, 0,
+ ret = svc_create_xprt(serv, "tcp-bc", xprt->xprt_net, PF_INET, 0,
SVC_SOCK_ANONYMOUS);
if (ret < 0) {
rqstp = ERR_PTR(ret);
@@ -269,7 +269,7 @@ int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt)
serv, xprt, &rqstp, &callback_svc);
if (!minorversion_setup) {
/* v4.0 callback setup */
- rqstp = nfs4_callback_up(serv);
+ rqstp = nfs4_callback_up(serv, xprt);
callback_svc = nfs4_callback_svc;
}
@@ -332,7 +332,6 @@ void nfs_callback_down(int minorversion)
int
check_gss_callback_principal(struct nfs_client *clp, struct svc_rqst *rqstp)
{
- struct rpc_clnt *r = clp->cl_rpcclient;
char *p = svc_gss_principal(rqstp);
if (rqstp->rq_authop->flavour != RPC_AUTH_GSS)
@@ -353,7 +352,7 @@ check_gss_callback_principal(struct nfs_client *clp, struct svc_rqst *rqstp)
if (memcmp(p, "nfs@", 4) != 0)
return 0;
p += 4;
- if (strcmp(p, r->cl_server) != 0)
+ if (strcmp(p, clp->cl_hostname) != 0)
return 0;
return 1;
}
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index c89d3b9e483c..a5527c90a5aa 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -38,7 +38,8 @@ enum nfs4_callback_opnum {
struct cb_process_state {
__be32 drc_status;
struct nfs_client *clp;
- int slotid;
+ u32 slotid;
+ struct net *net;
};
struct cb_compound_hdr_arg {
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 54cea8ad5a76..1b5d809a105e 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -8,6 +8,7 @@
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
#include <linux/slab.h>
+#include <linux/rcupdate.h>
#include "nfs4_fs.h"
#include "callback.h"
#include "delegation.h"
@@ -33,7 +34,7 @@ __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
res->bitmap[0] = res->bitmap[1] = 0;
res->status = htonl(NFS4ERR_BADHANDLE);
- dprintk("NFS: GETATTR callback request from %s\n",
+ dprintk_rcu("NFS: GETATTR callback request from %s\n",
rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR));
inode = nfs_delegation_find_inode(cps->clp, &args->fh);
@@ -73,7 +74,7 @@ __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
if (!cps->clp) /* Always set for v4.0. Set in cb_sequence for v4.1 */
goto out;
- dprintk("NFS: RECALL callback request from %s\n",
+ dprintk_rcu("NFS: RECALL callback request from %s\n",
rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR));
res = htonl(NFS4ERR_BADHANDLE);
@@ -86,8 +87,7 @@ __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
res = 0;
break;
case -ENOENT:
- if (res != 0)
- res = htonl(NFS4ERR_BAD_STATEID);
+ res = htonl(NFS4ERR_BAD_STATEID);
break;
default:
res = htonl(NFS4ERR_RESOURCE);
@@ -98,52 +98,64 @@ out:
return res;
}
-int nfs4_validate_delegation_stateid(struct nfs_delegation *delegation, const nfs4_stateid *stateid)
-{
- if (delegation == NULL || memcmp(delegation->stateid.data, stateid->data,
- sizeof(delegation->stateid.data)) != 0)
- return 0;
- return 1;
-}
-
#if defined(CONFIG_NFS_V4_1)
-static u32 initiate_file_draining(struct nfs_client *clp,
- struct cb_layoutrecallargs *args)
+/*
+ * Lookup a layout by filehandle.
+ *
+ * Note: gets a refcount on the layout hdr and on its respective inode.
+ * Caller must put the layout hdr and the inode.
+ *
+ * TODO: keep track of all layouts (and delegations) in a hash table
+ * hashed by filehandle.
+ */
+static struct pnfs_layout_hdr * get_layout_by_fh_locked(struct nfs_client *clp, struct nfs_fh *fh)
{
struct nfs_server *server;
- struct pnfs_layout_hdr *lo;
struct inode *ino;
- bool found = false;
- u32 rv = NFS4ERR_NOMATCHING_LAYOUT;
- LIST_HEAD(free_me_list);
+ struct pnfs_layout_hdr *lo;
- spin_lock(&clp->cl_lock);
- rcu_read_lock();
list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) {
list_for_each_entry(lo, &server->layouts, plh_layouts) {
- if (nfs_compare_fh(&args->cbl_fh,
- &NFS_I(lo->plh_inode)->fh))
+ if (nfs_compare_fh(fh, &NFS_I(lo->plh_inode)->fh))
continue;
ino = igrab(lo->plh_inode);
if (!ino)
continue;
- found = true;
- /* Without this, layout can be freed as soon
- * as we release cl_lock.
- */
get_layout_hdr(lo);
- break;
+ return lo;
}
- if (found)
- break;
}
+
+ return NULL;
+}
+
+static struct pnfs_layout_hdr * get_layout_by_fh(struct nfs_client *clp, struct nfs_fh *fh)
+{
+ struct pnfs_layout_hdr *lo;
+
+ spin_lock(&clp->cl_lock);
+ rcu_read_lock();
+ lo = get_layout_by_fh_locked(clp, fh);
rcu_read_unlock();
spin_unlock(&clp->cl_lock);
- if (!found)
+ return lo;
+}
+
+static u32 initiate_file_draining(struct nfs_client *clp,
+ struct cb_layoutrecallargs *args)
+{
+ struct inode *ino;
+ struct pnfs_layout_hdr *lo;
+ u32 rv = NFS4ERR_NOMATCHING_LAYOUT;
+ LIST_HEAD(free_me_list);
+
+ lo = get_layout_by_fh(clp, &args->cbl_fh);
+ if (!lo)
return NFS4ERR_NOMATCHING_LAYOUT;
+ ino = lo->plh_inode;
spin_lock(&ino->i_lock);
if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags) ||
mark_matching_lsegs_invalid(lo, &free_me_list,
@@ -213,17 +225,13 @@ static u32 initiate_bulk_draining(struct nfs_client *clp,
static u32 do_callback_layoutrecall(struct nfs_client *clp,
struct cb_layoutrecallargs *args)
{
- u32 res = NFS4ERR_DELAY;
+ u32 res;
dprintk("%s enter, type=%i\n", __func__, args->cbl_recall_type);
- if (test_and_set_bit(NFS4CLNT_LAYOUTRECALL, &clp->cl_state))
- goto out;
if (args->cbl_recall_type == RETURN_FILE)
res = initiate_file_draining(clp, args);
else
res = initiate_bulk_draining(clp, args);
- clear_bit(NFS4CLNT_LAYOUTRECALL, &clp->cl_state);
-out:
dprintk("%s returning %i\n", __func__, res);
return res;
@@ -303,21 +311,6 @@ out:
return res;
}
-int nfs41_validate_delegation_stateid(struct nfs_delegation *delegation, const nfs4_stateid *stateid)
-{
- if (delegation == NULL)
- return 0;
-
- if (stateid->stateid.seqid != 0)
- return 0;
- if (memcmp(&delegation->stateid.stateid.other,
- &stateid->stateid.other,
- NFS4_STATEID_OTHER_SIZE))
- return 0;
-
- return 1;
-}
-
/*
* Validate the sequenceID sent by the server.
* Return success if the sequenceID is one more than what we last saw on
@@ -441,7 +434,7 @@ __be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
int i;
__be32 status = htonl(NFS4ERR_BADSESSION);
- clp = nfs4_find_client_sessionid(args->csa_addr, &args->csa_sessionid);
+ clp = nfs4_find_client_sessionid(cps->net, args->csa_addr, &args->csa_sessionid);
if (clp == NULL)
goto out;
@@ -517,7 +510,7 @@ __be32 nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy,
if (!cps->clp) /* set in cb_sequence */
goto out;
- dprintk("NFS: RECALL_ANY callback request from %s\n",
+ dprintk_rcu("NFS: RECALL_ANY callback request from %s\n",
rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR));
status = cpu_to_be32(NFS4ERR_INVAL);
@@ -552,7 +545,7 @@ __be32 nfs4_callback_recallslot(struct cb_recallslotargs *args, void *dummy,
if (!cps->clp) /* set in cb_sequence */
goto out;
- dprintk("NFS: CB_RECALL_SLOT request from %s target max slots %d\n",
+ dprintk_rcu("NFS: CB_RECALL_SLOT request from %s target max slots %d\n",
rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR),
args->crsa_target_max_slots);
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index d50b2742f23b..95bfc243992c 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -9,6 +9,8 @@
#include <linux/sunrpc/svc.h>
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
+#include <linux/ratelimit.h>
+#include <linux/printk.h>
#include <linux/slab.h>
#include <linux/sunrpc/bc_xprt.h>
#include "nfs4_fs.h"
@@ -73,7 +75,7 @@ static __be32 *read_buf(struct xdr_stream *xdr, int nbytes)
p = xdr_inline_decode(xdr, nbytes);
if (unlikely(p == NULL))
- printk(KERN_WARNING "NFSv4 callback reply buffer overflowed!\n");
+ printk(KERN_WARNING "NFS: NFSv4 callback reply buffer overflowed!\n");
return p;
}
@@ -138,10 +140,10 @@ static __be32 decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
{
__be32 *p;
- p = read_buf(xdr, 16);
+ p = read_buf(xdr, NFS4_STATEID_SIZE);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
- memcpy(stateid->data, p, 16);
+ memcpy(stateid, p, NFS4_STATEID_SIZE);
return 0;
}
@@ -155,7 +157,7 @@ static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound
return status;
/* We do not like overly long tags! */
if (hdr->taglen > CB_OP_TAGLEN_MAXSZ - 12) {
- printk("NFSv4 CALLBACK %s: client sent tag of length %u\n",
+ printk("NFS: NFSv4 CALLBACK %s: client sent tag of length %u\n",
__func__, hdr->taglen);
return htonl(NFS4ERR_RESOURCE);
}
@@ -167,7 +169,7 @@ static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound
if (hdr->minorversion <= 1) {
hdr->cb_ident = ntohl(*p++); /* ignored by v4.1 */
} else {
- printk(KERN_WARNING "%s: NFSv4 server callback with "
+ pr_warn_ratelimited("NFS: %s: NFSv4 server callback with "
"illegal minor version %u!\n",
__func__, hdr->minorversion);
return htonl(NFS4ERR_MINOR_VERS_MISMATCH);
@@ -759,14 +761,14 @@ static void nfs4_callback_free_slot(struct nfs4_session *session)
* Let the state manager know callback processing done.
* A single slot, so highest used slotid is either 0 or -1
*/
- tbl->highest_used_slotid = -1;
+ tbl->highest_used_slotid = NFS4_NO_SLOT;
nfs4_check_drain_bc_complete(session);
spin_unlock(&tbl->slot_tbl_lock);
}
static void nfs4_cb_free_slot(struct cb_process_state *cps)
{
- if (cps->slotid != -1)
+ if (cps->slotid != NFS4_NO_SLOT)
nfs4_callback_free_slot(cps->clp->cl_session);
}
@@ -860,7 +862,8 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
struct cb_process_state cps = {
.drc_status = 0,
.clp = NULL,
- .slotid = -1,
+ .slotid = NFS4_NO_SLOT,
+ .net = rqstp->rq_xprt->xpt_net,
};
unsigned int nops = 0;
@@ -876,7 +879,7 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
return rpc_garbage_args;
if (hdr_arg.minorversion == 0) {
- cps.clp = nfs4_find_client_ident(hdr_arg.cb_ident);
+ cps.clp = nfs4_find_client_ident(rqstp->rq_xprt->xpt_net, hdr_arg.cb_ident);
if (!cps.clp || !check_gss_callback_principal(cps.clp, rqstp))
return rpc_drop_reply;
}
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index d4f772ebd1ef..4a108a0a2a60 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -40,6 +40,8 @@
#include <net/ipv6.h>
#include <linux/nfs_xdr.h>
#include <linux/sunrpc/bc_xprt.h>
+#include <linux/nsproxy.h>
+#include <linux/pid_namespace.h>
#include <asm/system.h>
@@ -50,15 +52,12 @@
#include "internal.h"
#include "fscache.h"
#include "pnfs.h"
+#include "netns.h"
#define NFSDBG_FACILITY NFSDBG_CLIENT
-static DEFINE_SPINLOCK(nfs_client_lock);
-static LIST_HEAD(nfs_client_list);
-static LIST_HEAD(nfs_volume_list);
static DECLARE_WAIT_QUEUE_HEAD(nfs_client_active_wq);
#ifdef CONFIG_NFS_V4
-static DEFINE_IDR(cb_ident_idr); /* Protected by nfs_client_lock */
/*
* Get a unique NFSv4.0 callback identifier which will be used
@@ -67,15 +66,16 @@ static DEFINE_IDR(cb_ident_idr); /* Protected by nfs_client_lock */
static int nfs_get_cb_ident_idr(struct nfs_client *clp, int minorversion)
{
int ret = 0;
+ struct nfs_net *nn = net_generic(clp->net, nfs_net_id);
if (clp->rpc_ops->version != 4 || minorversion != 0)
return ret;
retry:
- if (!idr_pre_get(&cb_ident_idr, GFP_KERNEL))
+ if (!idr_pre_get(&nn->cb_ident_idr, GFP_KERNEL))
return -ENOMEM;
- spin_lock(&nfs_client_lock);
- ret = idr_get_new(&cb_ident_idr, clp, &clp->cl_cb_ident);
- spin_unlock(&nfs_client_lock);
+ spin_lock(&nn->nfs_client_lock);
+ ret = idr_get_new(&nn->cb_ident_idr, clp, &clp->cl_cb_ident);
+ spin_unlock(&nn->nfs_client_lock);
if (ret == -EAGAIN)
goto retry;
return ret;
@@ -90,7 +90,7 @@ static bool nfs4_disable_idmapping = true;
/*
* RPC cruft for NFS
*/
-static struct rpc_version *nfs_version[5] = {
+static const struct rpc_version *nfs_version[5] = {
[2] = &nfs_version2,
#ifdef CONFIG_NFS_V3
[3] = &nfs_version3,
@@ -100,7 +100,7 @@ static struct rpc_version *nfs_version[5] = {
#endif
};
-struct rpc_program nfs_program = {
+const struct rpc_program nfs_program = {
.name = "nfs",
.number = NFS_PROGRAM,
.nrvers = ARRAY_SIZE(nfs_version),
@@ -116,11 +116,11 @@ struct rpc_stat nfs_rpcstat = {
#ifdef CONFIG_NFS_V3_ACL
static struct rpc_stat nfsacl_rpcstat = { &nfsacl_program };
-static struct rpc_version * nfsacl_version[] = {
+static const struct rpc_version *nfsacl_version[] = {
[3] = &nfsacl_version3,
};
-struct rpc_program nfsacl_program = {
+const struct rpc_program nfsacl_program = {
.name = "nfsacl",
.number = NFS_ACL_PROGRAM,
.nrvers = ARRAY_SIZE(nfsacl_version),
@@ -136,6 +136,7 @@ struct nfs_client_initdata {
const struct nfs_rpc_ops *rpc_ops;
int proto;
u32 minorversion;
+ struct net *net;
};
/*
@@ -172,6 +173,7 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
clp->cl_rpcclient = ERR_PTR(-EINVAL);
clp->cl_proto = cl_init->proto;
+ clp->net = get_net(cl_init->net);
#ifdef CONFIG_NFS_V4
err = nfs_get_cb_ident_idr(clp, cl_init->minorversion);
@@ -203,8 +205,11 @@ error_0:
#ifdef CONFIG_NFS_V4_1
static void nfs4_shutdown_session(struct nfs_client *clp)
{
- if (nfs4_has_session(clp))
+ if (nfs4_has_session(clp)) {
+ nfs4_deviceid_purge_client(clp);
nfs4_destroy_session(clp->cl_session);
+ }
+
}
#else /* CONFIG_NFS_V4_1 */
static void nfs4_shutdown_session(struct nfs_client *clp)
@@ -234,16 +239,20 @@ static void nfs4_shutdown_client(struct nfs_client *clp)
}
/* idr_remove_all is not needed as all id's are removed by nfs_put_client */
-void nfs_cleanup_cb_ident_idr(void)
+void nfs_cleanup_cb_ident_idr(struct net *net)
{
- idr_destroy(&cb_ident_idr);
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+
+ idr_destroy(&nn->cb_ident_idr);
}
/* nfs_client_lock held */
static void nfs_cb_idr_remove_locked(struct nfs_client *clp)
{
+ struct nfs_net *nn = net_generic(clp->net, nfs_net_id);
+
if (clp->cl_cb_ident)
- idr_remove(&cb_ident_idr, clp->cl_cb_ident);
+ idr_remove(&nn->cb_ident_idr, clp->cl_cb_ident);
}
static void pnfs_init_server(struct nfs_server *server)
@@ -261,7 +270,7 @@ static void nfs4_shutdown_client(struct nfs_client *clp)
{
}
-void nfs_cleanup_cb_ident_idr(void)
+void nfs_cleanup_cb_ident_idr(struct net *net)
{
}
@@ -293,10 +302,10 @@ static void nfs_free_client(struct nfs_client *clp)
if (clp->cl_machine_cred != NULL)
put_rpccred(clp->cl_machine_cred);
- nfs4_deviceid_purge_client(clp);
-
+ put_net(clp->net);
kfree(clp->cl_hostname);
kfree(clp->server_scope);
+ kfree(clp->impl_id);
kfree(clp);
dprintk("<-- nfs_free_client()\n");
@@ -307,15 +316,18 @@ static void nfs_free_client(struct nfs_client *clp)
*/
void nfs_put_client(struct nfs_client *clp)
{
+ struct nfs_net *nn;
+
if (!clp)
return;
dprintk("--> nfs_put_client({%d})\n", atomic_read(&clp->cl_count));
+ nn = net_generic(clp->net, nfs_net_id);
- if (atomic_dec_and_lock(&clp->cl_count, &nfs_client_lock)) {
+ if (atomic_dec_and_lock(&clp->cl_count, &nn->nfs_client_lock)) {
list_del(&clp->cl_share_link);
nfs_cb_idr_remove_locked(clp);
- spin_unlock(&nfs_client_lock);
+ spin_unlock(&nn->nfs_client_lock);
BUG_ON(!list_empty(&clp->cl_superblocks));
@@ -393,6 +405,7 @@ static int nfs_sockaddr_cmp_ip4(const struct sockaddr *sa1,
(sin1->sin_port == sin2->sin_port);
}
+#if defined(CONFIG_NFS_V4_1)
/*
* Test if two socket addresses represent the same actual socket,
* by comparing (only) relevant fields, excluding the port number.
@@ -411,6 +424,7 @@ static int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1,
}
return 0;
}
+#endif /* CONFIG_NFS_V4_1 */
/*
* Test if two socket addresses represent the same actual socket,
@@ -431,10 +445,10 @@ static int nfs_sockaddr_cmp(const struct sockaddr *sa1,
return 0;
}
+#if defined(CONFIG_NFS_V4_1)
/* Common match routine for v4.0 and v4.1 callback services */
-bool
-nfs4_cb_match_client(const struct sockaddr *addr, struct nfs_client *clp,
- u32 minorversion)
+static bool nfs4_cb_match_client(const struct sockaddr *addr,
+ struct nfs_client *clp, u32 minorversion)
{
struct sockaddr *clap = (struct sockaddr *)&clp->cl_addr;
@@ -454,6 +468,7 @@ nfs4_cb_match_client(const struct sockaddr *addr, struct nfs_client *clp,
return true;
}
+#endif /* CONFIG_NFS_V4_1 */
/*
* Find an nfs_client on the list that matches the initialisation data
@@ -463,8 +478,9 @@ static struct nfs_client *nfs_match_client(const struct nfs_client_initdata *dat
{
struct nfs_client *clp;
const struct sockaddr *sap = data->addr;
+ struct nfs_net *nn = net_generic(data->net, nfs_net_id);
- list_for_each_entry(clp, &nfs_client_list, cl_share_link) {
+ list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) {
const struct sockaddr *clap = (struct sockaddr *)&clp->cl_addr;
/* Don't match clients that failed to initialise properly */
if (clp->cl_cons_state < 0)
@@ -502,13 +518,14 @@ nfs_get_client(const struct nfs_client_initdata *cl_init,
{
struct nfs_client *clp, *new = NULL;
int error;
+ struct nfs_net *nn = net_generic(cl_init->net, nfs_net_id);
dprintk("--> nfs_get_client(%s,v%u)\n",
cl_init->hostname ?: "", cl_init->rpc_ops->version);
/* see if the client already exists */
do {
- spin_lock(&nfs_client_lock);
+ spin_lock(&nn->nfs_client_lock);
clp = nfs_match_client(cl_init);
if (clp)
@@ -516,7 +533,7 @@ nfs_get_client(const struct nfs_client_initdata *cl_init,
if (new)
goto install_client;
- spin_unlock(&nfs_client_lock);
+ spin_unlock(&nn->nfs_client_lock);
new = nfs_alloc_client(cl_init);
} while (!IS_ERR(new));
@@ -527,8 +544,8 @@ nfs_get_client(const struct nfs_client_initdata *cl_init,
/* install a new client and return with it unready */
install_client:
clp = new;
- list_add(&clp->cl_share_link, &nfs_client_list);
- spin_unlock(&nfs_client_lock);
+ list_add(&clp->cl_share_link, &nn->nfs_client_list);
+ spin_unlock(&nn->nfs_client_lock);
error = cl_init->rpc_ops->init_client(clp, timeparms, ip_addr,
authflavour, noresvport);
@@ -543,7 +560,7 @@ install_client:
* - make sure it's ready before returning
*/
found_client:
- spin_unlock(&nfs_client_lock);
+ spin_unlock(&nn->nfs_client_lock);
if (new)
nfs_free_client(new);
@@ -643,7 +660,7 @@ static int nfs_create_rpc_client(struct nfs_client *clp,
{
struct rpc_clnt *clnt = NULL;
struct rpc_create_args args = {
- .net = &init_net,
+ .net = clp->net,
.protocol = clp->cl_proto,
.address = (struct sockaddr *)&clp->cl_addr,
.addrsize = clp->cl_addrlen,
@@ -697,6 +714,7 @@ static int nfs_start_lockd(struct nfs_server *server)
.nfs_version = clp->rpc_ops->version,
.noresvport = server->flags & NFS_MOUNT_NORESVPORT ?
1 : 0,
+ .net = clp->net,
};
if (nlm_init.nfs_version > 3)
@@ -832,6 +850,7 @@ static int nfs_init_server(struct nfs_server *server,
.addrlen = data->nfs_server.addrlen,
.rpc_ops = &nfs_v2_clientops,
.proto = data->nfs_server.protocol,
+ .net = data->net,
};
struct rpc_timeout timeparms;
struct nfs_client *clp;
@@ -1030,25 +1049,30 @@ static void nfs_server_copy_userdata(struct nfs_server *target, struct nfs_serve
static void nfs_server_insert_lists(struct nfs_server *server)
{
struct nfs_client *clp = server->nfs_client;
+ struct nfs_net *nn = net_generic(clp->net, nfs_net_id);
- spin_lock(&nfs_client_lock);
+ spin_lock(&nn->nfs_client_lock);
list_add_tail_rcu(&server->client_link, &clp->cl_superblocks);
- list_add_tail(&server->master_link, &nfs_volume_list);
+ list_add_tail(&server->master_link, &nn->nfs_volume_list);
clear_bit(NFS_CS_STOP_RENEW, &clp->cl_res_state);
- spin_unlock(&nfs_client_lock);
+ spin_unlock(&nn->nfs_client_lock);
}
static void nfs_server_remove_lists(struct nfs_server *server)
{
struct nfs_client *clp = server->nfs_client;
+ struct nfs_net *nn;
- spin_lock(&nfs_client_lock);
+ if (clp == NULL)
+ return;
+ nn = net_generic(clp->net, nfs_net_id);
+ spin_lock(&nn->nfs_client_lock);
list_del_rcu(&server->client_link);
- if (clp && list_empty(&clp->cl_superblocks))
+ if (list_empty(&clp->cl_superblocks))
set_bit(NFS_CS_STOP_RENEW, &clp->cl_res_state);
list_del(&server->master_link);
- spin_unlock(&nfs_client_lock);
+ spin_unlock(&nn->nfs_client_lock);
synchronize_rcu();
}
@@ -1087,6 +1111,8 @@ static struct nfs_server *nfs_alloc_server(void)
return NULL;
}
+ ida_init(&server->openowner_id);
+ ida_init(&server->lockowner_id);
pnfs_init_server(server);
return server;
@@ -1112,6 +1138,8 @@ void nfs_free_server(struct nfs_server *server)
nfs_put_client(server->nfs_client);
+ ida_destroy(&server->lockowner_id);
+ ida_destroy(&server->openowner_id);
nfs_free_iostats(server->io_stats);
bdi_destroy(&server->backing_dev_info);
kfree(server);
@@ -1190,45 +1218,19 @@ error:
/*
* NFSv4.0 callback thread helper
*
- * Find a client by IP address, protocol version, and minorversion
- *
- * Called from the pg_authenticate method. The callback identifier
- * is not used as it has not been decoded.
- *
- * Returns NULL if no such client
- */
-struct nfs_client *
-nfs4_find_client_no_ident(const struct sockaddr *addr)
-{
- struct nfs_client *clp;
-
- spin_lock(&nfs_client_lock);
- list_for_each_entry(clp, &nfs_client_list, cl_share_link) {
- if (nfs4_cb_match_client(addr, clp, 0) == false)
- continue;
- atomic_inc(&clp->cl_count);
- spin_unlock(&nfs_client_lock);
- return clp;
- }
- spin_unlock(&nfs_client_lock);
- return NULL;
-}
-
-/*
- * NFSv4.0 callback thread helper
- *
* Find a client by callback identifier
*/
struct nfs_client *
-nfs4_find_client_ident(int cb_ident)
+nfs4_find_client_ident(struct net *net, int cb_ident)
{
struct nfs_client *clp;
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
- spin_lock(&nfs_client_lock);
- clp = idr_find(&cb_ident_idr, cb_ident);
+ spin_lock(&nn->nfs_client_lock);
+ clp = idr_find(&nn->cb_ident_idr, cb_ident);
if (clp)
atomic_inc(&clp->cl_count);
- spin_unlock(&nfs_client_lock);
+ spin_unlock(&nn->nfs_client_lock);
return clp;
}
@@ -1241,13 +1243,14 @@ nfs4_find_client_ident(int cb_ident)
* Returns NULL if no such client
*/
struct nfs_client *
-nfs4_find_client_sessionid(const struct sockaddr *addr,
+nfs4_find_client_sessionid(struct net *net, const struct sockaddr *addr,
struct nfs4_sessionid *sid)
{
struct nfs_client *clp;
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
- spin_lock(&nfs_client_lock);
- list_for_each_entry(clp, &nfs_client_list, cl_share_link) {
+ spin_lock(&nn->nfs_client_lock);
+ list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) {
if (nfs4_cb_match_client(addr, clp, 1) == false)
continue;
@@ -1260,17 +1263,17 @@ nfs4_find_client_sessionid(const struct sockaddr *addr,
continue;
atomic_inc(&clp->cl_count);
- spin_unlock(&nfs_client_lock);
+ spin_unlock(&nn->nfs_client_lock);
return clp;
}
- spin_unlock(&nfs_client_lock);
+ spin_unlock(&nn->nfs_client_lock);
return NULL;
}
#else /* CONFIG_NFS_V4_1 */
struct nfs_client *
-nfs4_find_client_sessionid(const struct sockaddr *addr,
+nfs4_find_client_sessionid(struct net *net, const struct sockaddr *addr,
struct nfs4_sessionid *sid)
{
return NULL;
@@ -1285,16 +1288,18 @@ static int nfs4_init_callback(struct nfs_client *clp)
int error;
if (clp->rpc_ops->version == 4) {
+ struct rpc_xprt *xprt;
+
+ xprt = rcu_dereference_raw(clp->cl_rpcclient->cl_xprt);
+
if (nfs4_has_session(clp)) {
- error = xprt_setup_backchannel(
- clp->cl_rpcclient->cl_xprt,
+ error = xprt_setup_backchannel(xprt,
NFS41_BC_MIN_CALLBACKS);
if (error < 0)
return error;
}
- error = nfs_callback_up(clp->cl_mvops->minor_version,
- clp->cl_rpcclient->cl_xprt);
+ error = nfs_callback_up(clp->cl_mvops->minor_version, xprt);
if (error < 0) {
dprintk("%s: failed to start callback. Error = %d\n",
__func__, error);
@@ -1345,6 +1350,7 @@ int nfs4_init_client(struct nfs_client *clp,
rpc_authflavor_t authflavour,
int noresvport)
{
+ char buf[INET6_ADDRSTRLEN + 1];
int error;
if (clp->cl_cons_state == NFS_CS_READY) {
@@ -1360,6 +1366,20 @@ int nfs4_init_client(struct nfs_client *clp,
1, noresvport);
if (error < 0)
goto error;
+
+ /* If no clientaddr= option was specified, find a usable cb address */
+ if (ip_addr == NULL) {
+ struct sockaddr_storage cb_addr;
+ struct sockaddr *sap = (struct sockaddr *)&cb_addr;
+
+ error = rpc_localaddr(clp->cl_rpcclient, sap, sizeof(cb_addr));
+ if (error < 0)
+ goto error;
+ error = rpc_ntop(sap, buf, sizeof(buf));
+ if (error < 0)
+ goto error;
+ ip_addr = (const char *)buf;
+ }
strlcpy(clp->cl_ipaddr, ip_addr, sizeof(clp->cl_ipaddr));
error = nfs_idmap_new(clp);
@@ -1394,7 +1414,7 @@ static int nfs4_set_client(struct nfs_server *server,
const char *ip_addr,
rpc_authflavor_t authflavour,
int proto, const struct rpc_timeout *timeparms,
- u32 minorversion)
+ u32 minorversion, struct net *net)
{
struct nfs_client_initdata cl_init = {
.hostname = hostname,
@@ -1403,6 +1423,7 @@ static int nfs4_set_client(struct nfs_server *server,
.rpc_ops = &nfs_v4_clientops,
.proto = proto,
.minorversion = minorversion,
+ .net = net,
};
struct nfs_client *clp;
int error;
@@ -1454,6 +1475,7 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
.rpc_ops = &nfs_v4_clientops,
.proto = ds_proto,
.minorversion = mds_clp->cl_minorversion,
+ .net = mds_clp->net,
};
struct rpc_timeout ds_timeout = {
.to_initval = 15 * HZ,
@@ -1581,7 +1603,8 @@ static int nfs4_init_server(struct nfs_server *server,
data->auth_flavors[0],
data->nfs_server.protocol,
&timeparms,
- data->minorversion);
+ data->minorversion,
+ data->net);
if (error < 0)
goto error;
@@ -1676,9 +1699,10 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
data->addrlen,
parent_client->cl_ipaddr,
data->authflavor,
- parent_server->client->cl_xprt->prot,
+ rpc_protocol(parent_server->client),
parent_server->client->cl_timeout,
- parent_client->cl_mvops->minor_version);
+ parent_client->cl_mvops->minor_version,
+ parent_client->net);
if (error < 0)
goto error;
@@ -1771,6 +1795,18 @@ out_free_server:
return ERR_PTR(error);
}
+void nfs_clients_init(struct net *net)
+{
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+
+ INIT_LIST_HEAD(&nn->nfs_client_list);
+ INIT_LIST_HEAD(&nn->nfs_volume_list);
+#ifdef CONFIG_NFS_V4
+ idr_init(&nn->cb_ident_idr);
+#endif
+ spin_lock_init(&nn->nfs_client_lock);
+}
+
#ifdef CONFIG_PROC_FS
static struct proc_dir_entry *proc_fs_nfs;
@@ -1824,13 +1860,15 @@ static int nfs_server_list_open(struct inode *inode, struct file *file)
{
struct seq_file *m;
int ret;
+ struct pid_namespace *pid_ns = file->f_dentry->d_sb->s_fs_info;
+ struct net *net = pid_ns->child_reaper->nsproxy->net_ns;
ret = seq_open(file, &nfs_server_list_ops);
if (ret < 0)
return ret;
m = file->private_data;
- m->private = PDE(inode)->data;
+ m->private = net;
return 0;
}
@@ -1840,9 +1878,11 @@ static int nfs_server_list_open(struct inode *inode, struct file *file)
*/
static void *nfs_server_list_start(struct seq_file *m, loff_t *_pos)
{
+ struct nfs_net *nn = net_generic(m->private, nfs_net_id);
+
/* lock the list against modification */
- spin_lock(&nfs_client_lock);
- return seq_list_start_head(&nfs_client_list, *_pos);
+ spin_lock(&nn->nfs_client_lock);
+ return seq_list_start_head(&nn->nfs_client_list, *_pos);
}
/*
@@ -1850,7 +1890,9 @@ static void *nfs_server_list_start(struct seq_file *m, loff_t *_pos)
*/
static void *nfs_server_list_next(struct seq_file *p, void *v, loff_t *pos)
{
- return seq_list_next(v, &nfs_client_list, pos);
+ struct nfs_net *nn = net_generic(p->private, nfs_net_id);
+
+ return seq_list_next(v, &nn->nfs_client_list, pos);
}
/*
@@ -1858,7 +1900,9 @@ static void *nfs_server_list_next(struct seq_file *p, void *v, loff_t *pos)
*/
static void nfs_server_list_stop(struct seq_file *p, void *v)
{
- spin_unlock(&nfs_client_lock);
+ struct nfs_net *nn = net_generic(p->private, nfs_net_id);
+
+ spin_unlock(&nn->nfs_client_lock);
}
/*
@@ -1867,9 +1911,10 @@ static void nfs_server_list_stop(struct seq_file *p, void *v)
static int nfs_server_list_show(struct seq_file *m, void *v)
{
struct nfs_client *clp;
+ struct nfs_net *nn = net_generic(m->private, nfs_net_id);
/* display header on line 1 */
- if (v == &nfs_client_list) {
+ if (v == &nn->nfs_client_list) {
seq_puts(m, "NV SERVER PORT USE HOSTNAME\n");
return 0;
}
@@ -1881,12 +1926,14 @@ static int nfs_server_list_show(struct seq_file *m, void *v)
if (clp->cl_cons_state != NFS_CS_READY)
return 0;
+ rcu_read_lock();
seq_printf(m, "v%u %s %s %3d %s\n",
clp->rpc_ops->version,
rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_ADDR),
rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_PORT),
atomic_read(&clp->cl_count),
clp->cl_hostname);
+ rcu_read_unlock();
return 0;
}
@@ -1898,13 +1945,15 @@ static int nfs_volume_list_open(struct inode *inode, struct file *file)
{
struct seq_file *m;
int ret;
+ struct pid_namespace *pid_ns = file->f_dentry->d_sb->s_fs_info;
+ struct net *net = pid_ns->child_reaper->nsproxy->net_ns;
ret = seq_open(file, &nfs_volume_list_ops);
if (ret < 0)
return ret;
m = file->private_data;
- m->private = PDE(inode)->data;
+ m->private = net;
return 0;
}
@@ -1914,9 +1963,11 @@ static int nfs_volume_list_open(struct inode *inode, struct file *file)
*/
static void *nfs_volume_list_start(struct seq_file *m, loff_t *_pos)
{
+ struct nfs_net *nn = net_generic(m->private, nfs_net_id);
+
/* lock the list against modification */
- spin_lock(&nfs_client_lock);
- return seq_list_start_head(&nfs_volume_list, *_pos);
+ spin_lock(&nn->nfs_client_lock);
+ return seq_list_start_head(&nn->nfs_volume_list, *_pos);
}
/*
@@ -1924,7 +1975,9 @@ static void *nfs_volume_list_start(struct seq_file *m, loff_t *_pos)
*/
static void *nfs_volume_list_next(struct seq_file *p, void *v, loff_t *pos)
{
- return seq_list_next(v, &nfs_volume_list, pos);
+ struct nfs_net *nn = net_generic(p->private, nfs_net_id);
+
+ return seq_list_next(v, &nn->nfs_volume_list, pos);
}
/*
@@ -1932,7 +1985,9 @@ static void *nfs_volume_list_next(struct seq_file *p, void *v, loff_t *pos)
*/
static void nfs_volume_list_stop(struct seq_file *p, void *v)
{
- spin_unlock(&nfs_client_lock);
+ struct nfs_net *nn = net_generic(p->private, nfs_net_id);
+
+ spin_unlock(&nn->nfs_client_lock);
}
/*
@@ -1943,9 +1998,10 @@ static int nfs_volume_list_show(struct seq_file *m, void *v)
struct nfs_server *server;
struct nfs_client *clp;
char dev[8], fsid[17];
+ struct nfs_net *nn = net_generic(m->private, nfs_net_id);
/* display header on line 1 */
- if (v == &nfs_volume_list) {
+ if (v == &nn->nfs_volume_list) {
seq_puts(m, "NV SERVER PORT DEV FSID FSC\n");
return 0;
}
@@ -1960,6 +2016,7 @@ static int nfs_volume_list_show(struct seq_file *m, void *v)
(unsigned long long) server->fsid.major,
(unsigned long long) server->fsid.minor);
+ rcu_read_lock();
seq_printf(m, "v%u %s %s %-7s %-17s %s\n",
clp->rpc_ops->version,
rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_ADDR),
@@ -1967,6 +2024,7 @@ static int nfs_volume_list_show(struct seq_file *m, void *v)
dev,
fsid,
nfs_server_fscache_state(server));
+ rcu_read_unlock();
return 0;
}
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 7f2654069806..89af1d269274 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -105,7 +105,7 @@ again:
continue;
if (!test_bit(NFS_DELEGATED_STATE, &state->flags))
continue;
- if (memcmp(state->stateid.data, stateid->data, sizeof(state->stateid.data)) != 0)
+ if (!nfs4_stateid_match(&state->stateid, stateid))
continue;
get_nfs_open_context(ctx);
spin_unlock(&inode->i_lock);
@@ -139,8 +139,7 @@ void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred,
if (delegation != NULL) {
spin_lock(&delegation->lock);
if (delegation->inode != NULL) {
- memcpy(delegation->stateid.data, res->delegation.data,
- sizeof(delegation->stateid.data));
+ nfs4_stateid_copy(&delegation->stateid, &res->delegation);
delegation->type = res->delegation_type;
delegation->maxsize = res->maxsize;
oldcred = delegation->cred;
@@ -236,8 +235,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
delegation = kmalloc(sizeof(*delegation), GFP_NOFS);
if (delegation == NULL)
return -ENOMEM;
- memcpy(delegation->stateid.data, res->delegation.data,
- sizeof(delegation->stateid.data));
+ nfs4_stateid_copy(&delegation->stateid, &res->delegation);
delegation->type = res->delegation_type;
delegation->maxsize = res->maxsize;
delegation->change_attr = inode->i_version;
@@ -250,19 +248,22 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
old_delegation = rcu_dereference_protected(nfsi->delegation,
lockdep_is_held(&clp->cl_lock));
if (old_delegation != NULL) {
- if (memcmp(&delegation->stateid, &old_delegation->stateid,
- sizeof(old_delegation->stateid)) == 0 &&
+ if (nfs4_stateid_match(&delegation->stateid,
+ &old_delegation->stateid) &&
delegation->type == old_delegation->type) {
goto out;
}
/*
* Deal with broken servers that hand out two
* delegations for the same file.
+ * Allow for upgrades to a WRITE delegation, but
+ * nothing else.
*/
dfprintk(FILE, "%s: server %s handed out "
"a duplicate delegation!\n",
__func__, clp->cl_hostname);
- if (delegation->type <= old_delegation->type) {
+ if (delegation->type == old_delegation->type ||
+ !(delegation->type & FMODE_WRITE)) {
freeme = delegation;
delegation = NULL;
goto out;
@@ -455,17 +456,24 @@ static void nfs_client_mark_return_all_delegation_types(struct nfs_client *clp,
rcu_read_unlock();
}
-static void nfs_client_mark_return_all_delegations(struct nfs_client *clp)
-{
- nfs_client_mark_return_all_delegation_types(clp, FMODE_READ|FMODE_WRITE);
-}
-
static void nfs_delegation_run_state_manager(struct nfs_client *clp)
{
if (test_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state))
nfs4_schedule_state_manager(clp);
}
+void nfs_remove_bad_delegation(struct inode *inode)
+{
+ struct nfs_delegation *delegation;
+
+ delegation = nfs_detach_delegation(NFS_I(inode), NFS_SERVER(inode));
+ if (delegation) {
+ nfs_inode_find_state_and_recover(inode, &delegation->stateid);
+ nfs_free_delegation(delegation);
+ }
+}
+EXPORT_SYMBOL_GPL(nfs_remove_bad_delegation);
+
/**
* nfs_expire_all_delegation_types
* @clp: client to process
@@ -488,18 +496,6 @@ void nfs_expire_all_delegations(struct nfs_client *clp)
nfs_expire_all_delegation_types(clp, FMODE_READ|FMODE_WRITE);
}
-/**
- * nfs_handle_cb_pathdown - return all delegations after NFS4ERR_CB_PATH_DOWN
- * @clp: client to process
- *
- */
-void nfs_handle_cb_pathdown(struct nfs_client *clp)
-{
- if (clp == NULL)
- return;
- nfs_client_mark_return_all_delegations(clp);
-}
-
static void nfs_mark_return_unreferenced_delegations(struct nfs_server *server)
{
struct nfs_delegation *delegation;
@@ -531,7 +527,7 @@ void nfs_expire_unreferenced_delegations(struct nfs_client *clp)
/**
* nfs_async_inode_return_delegation - asynchronously return a delegation
* @inode: inode to process
- * @stateid: state ID information from CB_RECALL arguments
+ * @stateid: state ID information
*
* Returns zero on success, or a negative errno value.
*/
@@ -545,7 +541,7 @@ int nfs_async_inode_return_delegation(struct inode *inode,
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
- if (!clp->cl_mvops->validate_stateid(delegation, stateid)) {
+ if (!clp->cl_mvops->match_stateid(&delegation->stateid, stateid)) {
rcu_read_unlock();
return -ENOENT;
}
@@ -684,21 +680,25 @@ int nfs_delegations_present(struct nfs_client *clp)
* nfs4_copy_delegation_stateid - Copy inode's state ID information
* @dst: stateid data structure to fill in
* @inode: inode to check
+ * @flags: delegation type requirement
*
- * Returns one and fills in "dst->data" * if inode had a delegation,
- * otherwise zero is returned.
+ * Returns "true" and fills in "dst->data" * if inode had a delegation,
+ * otherwise "false" is returned.
*/
-int nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode)
+bool nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode,
+ fmode_t flags)
{
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_delegation *delegation;
- int ret = 0;
+ bool ret;
+ flags &= FMODE_READ|FMODE_WRITE;
rcu_read_lock();
delegation = rcu_dereference(nfsi->delegation);
- if (delegation != NULL) {
- memcpy(dst->data, delegation->stateid.data, sizeof(dst->data));
- ret = 1;
+ ret = (delegation != NULL && (delegation->type & flags) == flags);
+ if (ret) {
+ nfs4_stateid_copy(dst, &delegation->stateid);
+ nfs_mark_delegation_referenced(delegation);
}
rcu_read_unlock();
return ret;
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index d9322e490c56..cd6a7a8dadae 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -42,9 +42,9 @@ void nfs_super_return_all_delegations(struct super_block *sb);
void nfs_expire_all_delegations(struct nfs_client *clp);
void nfs_expire_all_delegation_types(struct nfs_client *clp, fmode_t flags);
void nfs_expire_unreferenced_delegations(struct nfs_client *clp);
-void nfs_handle_cb_pathdown(struct nfs_client *clp);
int nfs_client_return_marked_delegations(struct nfs_client *clp);
int nfs_delegations_present(struct nfs_client *clp);
+void nfs_remove_bad_delegation(struct inode *inode);
void nfs_delegation_mark_reclaim(struct nfs_client *clp);
void nfs_delegation_reap_unclaimed(struct nfs_client *clp);
@@ -53,7 +53,7 @@ void nfs_delegation_reap_unclaimed(struct nfs_client *clp);
int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync);
int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid);
int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl);
-int nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode);
+bool nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode, fmode_t flags);
void nfs_mark_delegation_referenced(struct nfs_delegation *delegation);
int nfs_have_delegation(struct inode *inode, fmode_t flags);
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 32aa6917265a..4aaf0316d76a 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -207,7 +207,7 @@ struct nfs_cache_array_entry {
};
struct nfs_cache_array {
- unsigned int size;
+ int size;
int eof_index;
u64 last_cookie;
struct nfs_cache_array_entry array[0];
@@ -1429,6 +1429,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
}
open_flags = nd->intent.open.flags;
+ attr.ia_valid = 0;
ctx = create_nfs_open_context(dentry, open_flags);
res = ERR_CAST(ctx);
@@ -1437,11 +1438,14 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
if (nd->flags & LOOKUP_CREATE) {
attr.ia_mode = nd->intent.open.create_mode;
- attr.ia_valid = ATTR_MODE;
+ attr.ia_valid |= ATTR_MODE;
attr.ia_mode &= ~current_umask();
- } else {
+ } else
open_flags &= ~(O_EXCL | O_CREAT);
- attr.ia_valid = 0;
+
+ if (open_flags & O_TRUNC) {
+ attr.ia_valid |= ATTR_SIZE;
+ attr.ia_size = 0;
}
/* Open the file on the server */
@@ -1495,6 +1499,7 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
struct inode *inode;
struct inode *dir;
struct nfs_open_context *ctx;
+ struct iattr attr;
int openflags, ret = 0;
if (nd->flags & LOOKUP_RCU)
@@ -1523,19 +1528,27 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
/* We cannot do exclusive creation on a positive dentry */
if ((openflags & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL))
goto no_open_dput;
- /* We can't create new files, or truncate existing ones here */
- openflags &= ~(O_CREAT|O_EXCL|O_TRUNC);
+ /* We can't create new files here */
+ openflags &= ~(O_CREAT|O_EXCL);
ctx = create_nfs_open_context(dentry, openflags);
ret = PTR_ERR(ctx);
if (IS_ERR(ctx))
goto out;
+
+ attr.ia_valid = 0;
+ if (openflags & O_TRUNC) {
+ attr.ia_valid |= ATTR_SIZE;
+ attr.ia_size = 0;
+ nfs_wb_all(inode);
+ }
+
/*
* Note: we're not holding inode->i_mutex and so may be racing with
* operations that change the directory. We therefore save the
* change attribute *before* we do the RPC call.
*/
- inode = NFS_PROTO(dir)->open_context(dir, ctx, openflags, NULL);
+ inode = NFS_PROTO(dir)->open_context(dir, ctx, openflags, &attr);
if (IS_ERR(inode)) {
ret = PTR_ERR(inode);
switch (ret) {
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 1940f1a56a5f..9c7f66ac6cc2 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -265,9 +265,7 @@ static void nfs_direct_read_release(void *calldata)
}
static const struct rpc_call_ops nfs_read_direct_ops = {
-#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_read_prepare,
-#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_direct_read_result,
.rpc_release = nfs_direct_read_release,
};
@@ -554,9 +552,7 @@ static void nfs_direct_commit_release(void *calldata)
}
static const struct rpc_call_ops nfs_commit_direct_ops = {
-#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_write_prepare,
-#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_direct_commit_result,
.rpc_release = nfs_direct_commit_release,
};
@@ -696,9 +692,7 @@ out_unlock:
}
static const struct rpc_call_ops nfs_write_direct_ops = {
-#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_write_prepare,
-#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_direct_write_result,
.rpc_release = nfs_direct_write_release,
};
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
index a6e711ad130f..b3924b8a6000 100644
--- a/fs/nfs/dns_resolve.c
+++ b/fs/nfs/dns_resolve.c
@@ -10,8 +10,9 @@
#include <linux/sunrpc/clnt.h>
#include <linux/dns_resolver.h>
+#include "dns_resolve.h"
-ssize_t nfs_dns_resolve_name(char *name, size_t namelen,
+ssize_t nfs_dns_resolve_name(struct net *net, char *name, size_t namelen,
struct sockaddr *sa, size_t salen)
{
ssize_t ret;
@@ -20,7 +21,7 @@ ssize_t nfs_dns_resolve_name(char *name, size_t namelen,
ip_len = dns_query(NULL, name, namelen, NULL, &ip_addr, NULL);
if (ip_len > 0)
- ret = rpc_pton(ip_addr, ip_len, sa, salen);
+ ret = rpc_pton(net, ip_addr, ip_len, sa, salen);
else
ret = -ESRCH;
kfree(ip_addr);
@@ -40,15 +41,15 @@ ssize_t nfs_dns_resolve_name(char *name, size_t namelen,
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/cache.h>
#include <linux/sunrpc/svcauth.h>
+#include <linux/sunrpc/rpc_pipe_fs.h>
#include "dns_resolve.h"
#include "cache_lib.h"
+#include "netns.h"
#define NFS_DNS_HASHBITS 4
#define NFS_DNS_HASHTBL_SIZE (1 << NFS_DNS_HASHBITS)
-static struct cache_head *nfs_dns_table[NFS_DNS_HASHTBL_SIZE];
-
struct nfs_dns_ent {
struct cache_head h;
@@ -224,7 +225,7 @@ static int nfs_dns_parse(struct cache_detail *cd, char *buf, int buflen)
len = qword_get(&buf, buf1, sizeof(buf1));
if (len <= 0)
goto out;
- key.addrlen = rpc_pton(buf1, len,
+ key.addrlen = rpc_pton(cd->net, buf1, len,
(struct sockaddr *)&key.addr,
sizeof(key.addr));
@@ -259,21 +260,6 @@ out:
return ret;
}
-static struct cache_detail nfs_dns_resolve = {
- .owner = THIS_MODULE,
- .hash_size = NFS_DNS_HASHTBL_SIZE,
- .hash_table = nfs_dns_table,
- .name = "dns_resolve",
- .cache_put = nfs_dns_ent_put,
- .cache_upcall = nfs_dns_upcall,
- .cache_parse = nfs_dns_parse,
- .cache_show = nfs_dns_show,
- .match = nfs_dns_match,
- .init = nfs_dns_ent_init,
- .update = nfs_dns_ent_update,
- .alloc = nfs_dns_ent_alloc,
-};
-
static int do_cache_lookup(struct cache_detail *cd,
struct nfs_dns_ent *key,
struct nfs_dns_ent **item,
@@ -336,8 +322,8 @@ out:
return ret;
}
-ssize_t nfs_dns_resolve_name(char *name, size_t namelen,
- struct sockaddr *sa, size_t salen)
+ssize_t nfs_dns_resolve_name(struct net *net, char *name,
+ size_t namelen, struct sockaddr *sa, size_t salen)
{
struct nfs_dns_ent key = {
.hostname = name,
@@ -345,28 +331,118 @@ ssize_t nfs_dns_resolve_name(char *name, size_t namelen,
};
struct nfs_dns_ent *item = NULL;
ssize_t ret;
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
- ret = do_cache_lookup_wait(&nfs_dns_resolve, &key, &item);
+ ret = do_cache_lookup_wait(nn->nfs_dns_resolve, &key, &item);
if (ret == 0) {
if (salen >= item->addrlen) {
memcpy(sa, &item->addr, item->addrlen);
ret = item->addrlen;
} else
ret = -EOVERFLOW;
- cache_put(&item->h, &nfs_dns_resolve);
+ cache_put(&item->h, nn->nfs_dns_resolve);
} else if (ret == -ENOENT)
ret = -ESRCH;
return ret;
}
+int nfs_dns_resolver_cache_init(struct net *net)
+{
+ int err = -ENOMEM;
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+ struct cache_detail *cd;
+ struct cache_head **tbl;
+
+ cd = kzalloc(sizeof(struct cache_detail), GFP_KERNEL);
+ if (cd == NULL)
+ goto err_cd;
+
+ tbl = kzalloc(NFS_DNS_HASHTBL_SIZE * sizeof(struct cache_head *),
+ GFP_KERNEL);
+ if (tbl == NULL)
+ goto err_tbl;
+
+ cd->owner = THIS_MODULE,
+ cd->hash_size = NFS_DNS_HASHTBL_SIZE,
+ cd->hash_table = tbl,
+ cd->name = "dns_resolve",
+ cd->cache_put = nfs_dns_ent_put,
+ cd->cache_upcall = nfs_dns_upcall,
+ cd->cache_parse = nfs_dns_parse,
+ cd->cache_show = nfs_dns_show,
+ cd->match = nfs_dns_match,
+ cd->init = nfs_dns_ent_init,
+ cd->update = nfs_dns_ent_update,
+ cd->alloc = nfs_dns_ent_alloc,
+
+ nfs_cache_init(cd);
+ err = nfs_cache_register_net(net, cd);
+ if (err)
+ goto err_reg;
+ nn->nfs_dns_resolve = cd;
+ return 0;
+
+err_reg:
+ nfs_cache_destroy(cd);
+ kfree(cd->hash_table);
+err_tbl:
+ kfree(cd);
+err_cd:
+ return err;
+}
+
+void nfs_dns_resolver_cache_destroy(struct net *net)
+{
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+ struct cache_detail *cd = nn->nfs_dns_resolve;
+
+ nfs_cache_unregister_net(net, cd);
+ nfs_cache_destroy(cd);
+ kfree(cd->hash_table);
+ kfree(cd);
+}
+
+static int rpc_pipefs_event(struct notifier_block *nb, unsigned long event,
+ void *ptr)
+{
+ struct super_block *sb = ptr;
+ struct net *net = sb->s_fs_info;
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+ struct cache_detail *cd = nn->nfs_dns_resolve;
+ int ret = 0;
+
+ if (cd == NULL)
+ return 0;
+
+ if (!try_module_get(THIS_MODULE))
+ return 0;
+
+ switch (event) {
+ case RPC_PIPEFS_MOUNT:
+ ret = nfs_cache_register_sb(sb, cd);
+ break;
+ case RPC_PIPEFS_UMOUNT:
+ nfs_cache_unregister_sb(sb, cd);
+ break;
+ default:
+ ret = -ENOTSUPP;
+ break;
+ }
+ module_put(THIS_MODULE);
+ return ret;
+}
+
+static struct notifier_block nfs_dns_resolver_block = {
+ .notifier_call = rpc_pipefs_event,
+};
+
int nfs_dns_resolver_init(void)
{
- return nfs_cache_register(&nfs_dns_resolve);
+ return rpc_pipefs_notifier_register(&nfs_dns_resolver_block);
}
void nfs_dns_resolver_destroy(void)
{
- nfs_cache_unregister(&nfs_dns_resolve);
+ rpc_pipefs_notifier_unregister(&nfs_dns_resolver_block);
}
-
#endif
diff --git a/fs/nfs/dns_resolve.h b/fs/nfs/dns_resolve.h
index 199bb5543a91..2e4f596d2923 100644
--- a/fs/nfs/dns_resolve.h
+++ b/fs/nfs/dns_resolve.h
@@ -15,12 +15,22 @@ static inline int nfs_dns_resolver_init(void)
static inline void nfs_dns_resolver_destroy(void)
{}
+
+static inline int nfs_dns_resolver_cache_init(struct net *net)
+{
+ return 0;
+}
+
+static inline void nfs_dns_resolver_cache_destroy(struct net *net)
+{}
#else
extern int nfs_dns_resolver_init(void);
extern void nfs_dns_resolver_destroy(void);
+extern int nfs_dns_resolver_cache_init(struct net *net);
+extern void nfs_dns_resolver_cache_destroy(struct net *net);
#endif
-extern ssize_t nfs_dns_resolve_name(char *name, size_t namelen,
- struct sockaddr *sa, size_t salen);
+extern ssize_t nfs_dns_resolve_name(struct net *net, char *name,
+ size_t namelen, struct sockaddr *sa, size_t salen);
#endif
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index c43a452f7da2..4fdaaa63cf1c 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -530,6 +530,8 @@ static int nfs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
if (mapping != dentry->d_inode->i_mapping)
goto out_unlock;
+ wait_on_page_writeback(page);
+
pagelen = nfs_page_length(page);
if (pagelen == 0)
goto out_unlock;
diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c
index 419119c371bf..ae65c16b3670 100644
--- a/fs/nfs/fscache.c
+++ b/fs/nfs/fscache.c
@@ -327,7 +327,7 @@ void nfs_fscache_reset_inode_cookie(struct inode *inode)
{
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_server *nfss = NFS_SERVER(inode);
- struct fscache_cookie *old = nfsi->fscache;
+ NFS_IFDEBUG(struct fscache_cookie *old = nfsi->fscache);
nfs_fscache_inode_lock(inode);
if (nfsi->fscache) {
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index a1bbf7780dfc..b7f348bb618b 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -34,11 +34,29 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
+#include <linux/parser.h>
+#include <linux/fs.h>
#include <linux/nfs_idmap.h>
+#include <net/net_namespace.h>
+#include <linux/sunrpc/rpc_pipe_fs.h>
#include <linux/nfs_fs.h>
+#include <linux/nfs_fs_sb.h>
+#include <linux/key.h>
+#include <linux/keyctl.h>
+#include <linux/key-type.h>
+#include <keys/user-type.h>
+#include <linux/module.h>
+
+#include "internal.h"
+#include "netns.h"
+
+#define NFS_UINT_MAXLEN 11
+
+/* Default cache timeout is 10 minutes */
+unsigned int nfs_idmap_cache_timeout = 600;
+static const struct cred *id_resolver_cache;
+static struct key_type key_type_id_resolver_legacy;
+
/**
* nfs_fattr_init_names - initialise the nfs_fattr owner_name/group_name fields
@@ -142,24 +160,7 @@ static int nfs_map_numeric_to_string(__u32 id, char *buf, size_t buflen)
return snprintf(buf, buflen, "%u", id);
}
-#ifdef CONFIG_NFS_USE_NEW_IDMAPPER
-
-#include <linux/cred.h>
-#include <linux/sunrpc/sched.h>
-#include <linux/nfs4.h>
-#include <linux/nfs_fs_sb.h>
-#include <linux/keyctl.h>
-#include <linux/key-type.h>
-#include <linux/rcupdate.h>
-#include <linux/err.h>
-
-#include <keys/user-type.h>
-
-#define NFS_UINT_MAXLEN 11
-
-const struct cred *id_resolver_cache;
-
-struct key_type key_type_id_resolver = {
+static struct key_type key_type_id_resolver = {
.name = "id_resolver",
.instantiate = user_instantiate,
.match = user_match,
@@ -169,13 +170,14 @@ struct key_type key_type_id_resolver = {
.read = user_read,
};
-int nfs_idmap_init(void)
+static int nfs_idmap_init_keyring(void)
{
struct cred *cred;
struct key *keyring;
int ret = 0;
- printk(KERN_NOTICE "Registering the %s key type\n", key_type_id_resolver.name);
+ printk(KERN_NOTICE "NFS: Registering the %s key type\n",
+ key_type_id_resolver.name);
cred = prepare_kernel_cred(NULL);
if (!cred)
@@ -211,7 +213,7 @@ failed_put_cred:
return ret;
}
-void nfs_idmap_quit(void)
+static void nfs_idmap_quit_keyring(void)
{
key_revoke(id_resolver_cache->thread_keyring);
unregister_key_type(&key_type_id_resolver);
@@ -246,8 +248,10 @@ static ssize_t nfs_idmap_get_desc(const char *name, size_t namelen,
return desclen;
}
-static ssize_t nfs_idmap_request_key(const char *name, size_t namelen,
- const char *type, void *data, size_t data_size)
+static ssize_t nfs_idmap_request_key(struct key_type *key_type,
+ const char *name, size_t namelen,
+ const char *type, void *data,
+ size_t data_size, struct idmap *idmap)
{
const struct cred *saved_cred;
struct key *rkey;
@@ -260,8 +264,12 @@ static ssize_t nfs_idmap_request_key(const char *name, size_t namelen,
goto out;
saved_cred = override_creds(id_resolver_cache);
- rkey = request_key(&key_type_id_resolver, desc, "");
+ if (idmap)
+ rkey = request_key_with_auxdata(key_type, desc, "", 0, idmap);
+ else
+ rkey = request_key(&key_type_id_resolver, desc, "");
revert_creds(saved_cred);
+
kfree(desc);
if (IS_ERR(rkey)) {
ret = PTR_ERR(rkey);
@@ -294,31 +302,46 @@ out:
return ret;
}
+static ssize_t nfs_idmap_get_key(const char *name, size_t namelen,
+ const char *type, void *data,
+ size_t data_size, struct idmap *idmap)
+{
+ ssize_t ret = nfs_idmap_request_key(&key_type_id_resolver,
+ name, namelen, type, data,
+ data_size, NULL);
+ if (ret < 0) {
+ ret = nfs_idmap_request_key(&key_type_id_resolver_legacy,
+ name, namelen, type, data,
+ data_size, idmap);
+ }
+ return ret;
+}
/* ID -> Name */
-static ssize_t nfs_idmap_lookup_name(__u32 id, const char *type, char *buf, size_t buflen)
+static ssize_t nfs_idmap_lookup_name(__u32 id, const char *type, char *buf,
+ size_t buflen, struct idmap *idmap)
{
char id_str[NFS_UINT_MAXLEN];
int id_len;
ssize_t ret;
id_len = snprintf(id_str, sizeof(id_str), "%u", id);
- ret = nfs_idmap_request_key(id_str, id_len, type, buf, buflen);
+ ret = nfs_idmap_get_key(id_str, id_len, type, buf, buflen, idmap);
if (ret < 0)
return -EINVAL;
return ret;
}
/* Name -> ID */
-static int nfs_idmap_lookup_id(const char *name, size_t namelen,
- const char *type, __u32 *id)
+static int nfs_idmap_lookup_id(const char *name, size_t namelen, const char *type,
+ __u32 *id, struct idmap *idmap)
{
char id_str[NFS_UINT_MAXLEN];
long id_long;
ssize_t data_size;
int ret = 0;
- data_size = nfs_idmap_request_key(name, namelen, type, id_str, NFS_UINT_MAXLEN);
+ data_size = nfs_idmap_get_key(name, namelen, type, id_str, NFS_UINT_MAXLEN, idmap);
if (data_size <= 0) {
ret = -EINVAL;
} else {
@@ -328,114 +351,103 @@ static int nfs_idmap_lookup_id(const char *name, size_t namelen,
return ret;
}
-int nfs_map_name_to_uid(const struct nfs_server *server, const char *name, size_t namelen, __u32 *uid)
-{
- if (nfs_map_string_to_numeric(name, namelen, uid))
- return 0;
- return nfs_idmap_lookup_id(name, namelen, "uid", uid);
-}
-
-int nfs_map_group_to_gid(const struct nfs_server *server, const char *name, size_t namelen, __u32 *gid)
-{
- if (nfs_map_string_to_numeric(name, namelen, gid))
- return 0;
- return nfs_idmap_lookup_id(name, namelen, "gid", gid);
-}
-
-int nfs_map_uid_to_name(const struct nfs_server *server, __u32 uid, char *buf, size_t buflen)
-{
- int ret = -EINVAL;
-
- if (!(server->caps & NFS_CAP_UIDGID_NOMAP))
- ret = nfs_idmap_lookup_name(uid, "user", buf, buflen);
- if (ret < 0)
- ret = nfs_map_numeric_to_string(uid, buf, buflen);
- return ret;
-}
-int nfs_map_gid_to_group(const struct nfs_server *server, __u32 gid, char *buf, size_t buflen)
-{
- int ret = -EINVAL;
+/* idmap classic begins here */
+module_param(nfs_idmap_cache_timeout, int, 0644);
- if (!(server->caps & NFS_CAP_UIDGID_NOMAP))
- ret = nfs_idmap_lookup_name(gid, "group", buf, buflen);
- if (ret < 0)
- ret = nfs_map_numeric_to_string(gid, buf, buflen);
- return ret;
-}
-
-#else /* CONFIG_NFS_USE_NEW_IDMAPPER not defined */
-
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/init.h>
-#include <linux/socket.h>
-#include <linux/in.h>
-#include <linux/sched.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/workqueue.h>
-#include <linux/sunrpc/rpc_pipe_fs.h>
-
-#include <linux/nfs_fs.h>
-
-#include "nfs4_fs.h"
-
-#define IDMAP_HASH_SZ 128
-
-/* Default cache timeout is 10 minutes */
-unsigned int nfs_idmap_cache_timeout = 600 * HZ;
-
-static int param_set_idmap_timeout(const char *val, struct kernel_param *kp)
-{
- char *endp;
- int num = simple_strtol(val, &endp, 0);
- int jif = num * HZ;
- if (endp == val || *endp || num < 0 || jif < num)
- return -EINVAL;
- *((int *)kp->arg) = jif;
- return 0;
-}
-
-module_param_call(idmap_cache_timeout, param_set_idmap_timeout, param_get_int,
- &nfs_idmap_cache_timeout, 0644);
-
-struct idmap_hashent {
- unsigned long ih_expires;
- __u32 ih_id;
- size_t ih_namelen;
- char ih_name[IDMAP_NAMESZ];
+struct idmap {
+ struct rpc_pipe *idmap_pipe;
+ struct key_construction *idmap_key_cons;
};
-struct idmap_hashtable {
- __u8 h_type;
- struct idmap_hashent h_entries[IDMAP_HASH_SZ];
+enum {
+ Opt_find_uid, Opt_find_gid, Opt_find_user, Opt_find_group, Opt_find_err
};
-struct idmap {
- struct dentry *idmap_dentry;
- wait_queue_head_t idmap_wq;
- struct idmap_msg idmap_im;
- struct mutex idmap_lock; /* Serializes upcalls */
- struct mutex idmap_im_lock; /* Protects the hashtable */
- struct idmap_hashtable idmap_user_hash;
- struct idmap_hashtable idmap_group_hash;
+static const match_table_t nfs_idmap_tokens = {
+ { Opt_find_uid, "uid:%s" },
+ { Opt_find_gid, "gid:%s" },
+ { Opt_find_user, "user:%s" },
+ { Opt_find_group, "group:%s" },
+ { Opt_find_err, NULL }
};
+static int nfs_idmap_legacy_upcall(struct key_construction *, const char *, void *);
static ssize_t idmap_pipe_downcall(struct file *, const char __user *,
size_t);
static void idmap_pipe_destroy_msg(struct rpc_pipe_msg *);
-static unsigned int fnvhash32(const void *, size_t);
-
static const struct rpc_pipe_ops idmap_upcall_ops = {
.upcall = rpc_pipe_generic_upcall,
.downcall = idmap_pipe_downcall,
.destroy_msg = idmap_pipe_destroy_msg,
};
+static struct key_type key_type_id_resolver_legacy = {
+ .name = "id_resolver",
+ .instantiate = user_instantiate,
+ .match = user_match,
+ .revoke = user_revoke,
+ .destroy = user_destroy,
+ .describe = user_describe,
+ .read = user_read,
+ .request_key = nfs_idmap_legacy_upcall,
+};
+
+static void __nfs_idmap_unregister(struct rpc_pipe *pipe)
+{
+ if (pipe->dentry)
+ rpc_unlink(pipe->dentry);
+}
+
+static int __nfs_idmap_register(struct dentry *dir,
+ struct idmap *idmap,
+ struct rpc_pipe *pipe)
+{
+ struct dentry *dentry;
+
+ dentry = rpc_mkpipe_dentry(dir, "idmap", idmap, pipe);
+ if (IS_ERR(dentry))
+ return PTR_ERR(dentry);
+ pipe->dentry = dentry;
+ return 0;
+}
+
+static void nfs_idmap_unregister(struct nfs_client *clp,
+ struct rpc_pipe *pipe)
+{
+ struct net *net = clp->net;
+ struct super_block *pipefs_sb;
+
+ pipefs_sb = rpc_get_sb_net(net);
+ if (pipefs_sb) {
+ __nfs_idmap_unregister(pipe);
+ rpc_put_sb_net(net);
+ }
+}
+
+static int nfs_idmap_register(struct nfs_client *clp,
+ struct idmap *idmap,
+ struct rpc_pipe *pipe)
+{
+ struct net *net = clp->net;
+ struct super_block *pipefs_sb;
+ int err = 0;
+
+ pipefs_sb = rpc_get_sb_net(net);
+ if (pipefs_sb) {
+ if (clp->cl_rpcclient->cl_dentry)
+ err = __nfs_idmap_register(clp->cl_rpcclient->cl_dentry,
+ idmap, pipe);
+ rpc_put_sb_net(net);
+ }
+ return err;
+}
+
int
nfs_idmap_new(struct nfs_client *clp)
{
struct idmap *idmap;
+ struct rpc_pipe *pipe;
int error;
BUG_ON(clp->cl_idmap != NULL);
@@ -444,19 +456,19 @@ nfs_idmap_new(struct nfs_client *clp)
if (idmap == NULL)
return -ENOMEM;
- idmap->idmap_dentry = rpc_mkpipe(clp->cl_rpcclient->cl_path.dentry,
- "idmap", idmap, &idmap_upcall_ops, 0);
- if (IS_ERR(idmap->idmap_dentry)) {
- error = PTR_ERR(idmap->idmap_dentry);
+ pipe = rpc_mkpipe_data(&idmap_upcall_ops, 0);
+ if (IS_ERR(pipe)) {
+ error = PTR_ERR(pipe);
kfree(idmap);
return error;
}
-
- mutex_init(&idmap->idmap_lock);
- mutex_init(&idmap->idmap_im_lock);
- init_waitqueue_head(&idmap->idmap_wq);
- idmap->idmap_user_hash.h_type = IDMAP_TYPE_USER;
- idmap->idmap_group_hash.h_type = IDMAP_TYPE_GROUP;
+ error = nfs_idmap_register(clp, idmap, pipe);
+ if (error) {
+ rpc_destroy_pipe_data(pipe);
+ kfree(idmap);
+ return error;
+ }
+ idmap->idmap_pipe = pipe;
clp->cl_idmap = idmap;
return 0;
@@ -469,211 +481,220 @@ nfs_idmap_delete(struct nfs_client *clp)
if (!idmap)
return;
- rpc_unlink(idmap->idmap_dentry);
+ nfs_idmap_unregister(clp, idmap->idmap_pipe);
+ rpc_destroy_pipe_data(idmap->idmap_pipe);
clp->cl_idmap = NULL;
kfree(idmap);
}
-/*
- * Helper routines for manipulating the hashtable
- */
-static inline struct idmap_hashent *
-idmap_name_hash(struct idmap_hashtable* h, const char *name, size_t len)
-{
- return &h->h_entries[fnvhash32(name, len) % IDMAP_HASH_SZ];
-}
-
-static struct idmap_hashent *
-idmap_lookup_name(struct idmap_hashtable *h, const char *name, size_t len)
+static int __rpc_pipefs_event(struct nfs_client *clp, unsigned long event,
+ struct super_block *sb)
{
- struct idmap_hashent *he = idmap_name_hash(h, name, len);
+ int err = 0;
- if (he->ih_namelen != len || memcmp(he->ih_name, name, len) != 0)
- return NULL;
- if (time_after(jiffies, he->ih_expires))
- return NULL;
- return he;
+ switch (event) {
+ case RPC_PIPEFS_MOUNT:
+ BUG_ON(clp->cl_rpcclient->cl_dentry == NULL);
+ err = __nfs_idmap_register(clp->cl_rpcclient->cl_dentry,
+ clp->cl_idmap,
+ clp->cl_idmap->idmap_pipe);
+ break;
+ case RPC_PIPEFS_UMOUNT:
+ if (clp->cl_idmap->idmap_pipe) {
+ struct dentry *parent;
+
+ parent = clp->cl_idmap->idmap_pipe->dentry->d_parent;
+ __nfs_idmap_unregister(clp->cl_idmap->idmap_pipe);
+ /*
+ * Note: This is a dirty hack. SUNRPC hook has been
+ * called already but simple_rmdir() call for the
+ * directory returned with error because of idmap pipe
+ * inside. Thus now we have to remove this directory
+ * here.
+ */
+ if (rpc_rmdir(parent))
+ printk(KERN_ERR "NFS: %s: failed to remove "
+ "clnt dir!\n", __func__);
+ }
+ break;
+ default:
+ printk(KERN_ERR "NFS: %s: unknown event: %ld\n", __func__,
+ event);
+ return -ENOTSUPP;
+ }
+ return err;
+}
+
+static struct nfs_client *nfs_get_client_for_event(struct net *net, int event)
+{
+ struct nfs_net *nn = net_generic(net, nfs_net_id);
+ struct dentry *cl_dentry;
+ struct nfs_client *clp;
+
+ spin_lock(&nn->nfs_client_lock);
+ list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) {
+ if (clp->rpc_ops != &nfs_v4_clientops)
+ continue;
+ cl_dentry = clp->cl_idmap->idmap_pipe->dentry;
+ if (((event == RPC_PIPEFS_MOUNT) && cl_dentry) ||
+ ((event == RPC_PIPEFS_UMOUNT) && !cl_dentry))
+ continue;
+ atomic_inc(&clp->cl_count);
+ spin_unlock(&nn->nfs_client_lock);
+ return clp;
+ }
+ spin_unlock(&nn->nfs_client_lock);
+ return NULL;
}
-static inline struct idmap_hashent *
-idmap_id_hash(struct idmap_hashtable* h, __u32 id)
+static int rpc_pipefs_event(struct notifier_block *nb, unsigned long event,
+ void *ptr)
{
- return &h->h_entries[fnvhash32(&id, sizeof(id)) % IDMAP_HASH_SZ];
-}
+ struct super_block *sb = ptr;
+ struct nfs_client *clp;
+ int error = 0;
-static struct idmap_hashent *
-idmap_lookup_id(struct idmap_hashtable *h, __u32 id)
-{
- struct idmap_hashent *he = idmap_id_hash(h, id);
- if (he->ih_id != id || he->ih_namelen == 0)
- return NULL;
- if (time_after(jiffies, he->ih_expires))
- return NULL;
- return he;
+ while ((clp = nfs_get_client_for_event(sb->s_fs_info, event))) {
+ error = __rpc_pipefs_event(clp, event, sb);
+ nfs_put_client(clp);
+ if (error)
+ break;
+ }
+ return error;
}
-/*
- * Routines for allocating new entries in the hashtable.
- * For now, we just have 1 entry per bucket, so it's all
- * pretty trivial.
- */
-static inline struct idmap_hashent *
-idmap_alloc_name(struct idmap_hashtable *h, char *name, size_t len)
-{
- return idmap_name_hash(h, name, len);
-}
+#define PIPEFS_NFS_PRIO 1
+
+static struct notifier_block nfs_idmap_block = {
+ .notifier_call = rpc_pipefs_event,
+ .priority = SUNRPC_PIPEFS_NFS_PRIO,
+};
-static inline struct idmap_hashent *
-idmap_alloc_id(struct idmap_hashtable *h, __u32 id)
+int nfs_idmap_init(void)
{
- return idmap_id_hash(h, id);
+ int ret;
+ ret = nfs_idmap_init_keyring();
+ if (ret != 0)
+ goto out;
+ ret = rpc_pipefs_notifier_register(&nfs_idmap_block);
+ if (ret != 0)
+ nfs_idmap_quit_keyring();
+out:
+ return ret;
}
-static void
-idmap_update_entry(struct idmap_hashent *he, const char *name,
- size_t namelen, __u32 id)
+void nfs_idmap_quit(void)
{
- he->ih_id = id;
- memcpy(he->ih_name, name, namelen);
- he->ih_name[namelen] = '\0';
- he->ih_namelen = namelen;
- he->ih_expires = jiffies + nfs_idmap_cache_timeout;
+ rpc_pipefs_notifier_unregister(&nfs_idmap_block);
+ nfs_idmap_quit_keyring();
}
-/*
- * Name -> ID
- */
-static int
-nfs_idmap_id(struct idmap *idmap, struct idmap_hashtable *h,
- const char *name, size_t namelen, __u32 *id)
+static int nfs_idmap_prepare_message(char *desc, struct idmap_msg *im,
+ struct rpc_pipe_msg *msg)
{
- struct rpc_pipe_msg msg;
- struct idmap_msg *im;
- struct idmap_hashent *he;
- DECLARE_WAITQUEUE(wq, current);
- int ret = -EIO;
-
- im = &idmap->idmap_im;
-
- /*
- * String sanity checks
- * Note that the userland daemon expects NUL terminated strings
- */
- for (;;) {
- if (namelen == 0)
- return -EINVAL;
- if (name[namelen-1] != '\0')
- break;
- namelen--;
- }
- if (namelen >= IDMAP_NAMESZ)
- return -EINVAL;
+ substring_t substr;
+ int token, ret;
- mutex_lock(&idmap->idmap_lock);
- mutex_lock(&idmap->idmap_im_lock);
-
- he = idmap_lookup_name(h, name, namelen);
- if (he != NULL) {
- *id = he->ih_id;
- ret = 0;
- goto out;
- }
+ memset(im, 0, sizeof(*im));
+ memset(msg, 0, sizeof(*msg));
- memset(im, 0, sizeof(*im));
- memcpy(im->im_name, name, namelen);
+ im->im_type = IDMAP_TYPE_GROUP;
+ token = match_token(desc, nfs_idmap_tokens, &substr);
- im->im_type = h->h_type;
- im->im_conv = IDMAP_CONV_NAMETOID;
+ switch (token) {
+ case Opt_find_uid:
+ im->im_type = IDMAP_TYPE_USER;
+ case Opt_find_gid:
+ im->im_conv = IDMAP_CONV_NAMETOID;
+ ret = match_strlcpy(im->im_name, &substr, IDMAP_NAMESZ);
+ break;
- memset(&msg, 0, sizeof(msg));
- msg.data = im;
- msg.len = sizeof(*im);
+ case Opt_find_user:
+ im->im_type = IDMAP_TYPE_USER;
+ case Opt_find_group:
+ im->im_conv = IDMAP_CONV_IDTONAME;
+ ret = match_int(&substr, &im->im_id);
+ break;
- add_wait_queue(&idmap->idmap_wq, &wq);
- if (rpc_queue_upcall(idmap->idmap_dentry->d_inode, &msg) < 0) {
- remove_wait_queue(&idmap->idmap_wq, &wq);
+ default:
+ ret = -EINVAL;
goto out;
}
- set_current_state(TASK_UNINTERRUPTIBLE);
- mutex_unlock(&idmap->idmap_im_lock);
- schedule();
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&idmap->idmap_wq, &wq);
- mutex_lock(&idmap->idmap_im_lock);
+ msg->data = im;
+ msg->len = sizeof(struct idmap_msg);
- if (im->im_status & IDMAP_STATUS_SUCCESS) {
- *id = im->im_id;
- ret = 0;
- }
-
- out:
- memset(im, 0, sizeof(*im));
- mutex_unlock(&idmap->idmap_im_lock);
- mutex_unlock(&idmap->idmap_lock);
+out:
return ret;
}
-/*
- * ID -> Name
- */
-static int
-nfs_idmap_name(struct idmap *idmap, struct idmap_hashtable *h,
- __u32 id, char *name)
+static int nfs_idmap_legacy_upcall(struct key_construction *cons,
+ const char *op,
+ void *aux)
{
- struct rpc_pipe_msg msg;
+ struct rpc_pipe_msg *msg;
struct idmap_msg *im;
- struct idmap_hashent *he;
- DECLARE_WAITQUEUE(wq, current);
- int ret = -EIO;
- unsigned int len;
-
- im = &idmap->idmap_im;
+ struct idmap *idmap = (struct idmap *)aux;
+ struct key *key = cons->key;
+ int ret;
- mutex_lock(&idmap->idmap_lock);
- mutex_lock(&idmap->idmap_im_lock);
+ /* msg and im are freed in idmap_pipe_destroy_msg */
+ msg = kmalloc(sizeof(*msg), GFP_KERNEL);
+ if (IS_ERR(msg)) {
+ ret = PTR_ERR(msg);
+ goto out0;
+ }
- he = idmap_lookup_id(h, id);
- if (he) {
- memcpy(name, he->ih_name, he->ih_namelen);
- ret = he->ih_namelen;
- goto out;
+ im = kmalloc(sizeof(*im), GFP_KERNEL);
+ if (IS_ERR(im)) {
+ ret = PTR_ERR(im);
+ goto out1;
}
- memset(im, 0, sizeof(*im));
- im->im_type = h->h_type;
- im->im_conv = IDMAP_CONV_IDTONAME;
- im->im_id = id;
+ ret = nfs_idmap_prepare_message(key->description, im, msg);
+ if (ret < 0)
+ goto out2;
- memset(&msg, 0, sizeof(msg));
- msg.data = im;
- msg.len = sizeof(*im);
+ idmap->idmap_key_cons = cons;
- add_wait_queue(&idmap->idmap_wq, &wq);
+ ret = rpc_queue_upcall(idmap->idmap_pipe, msg);
+ if (ret < 0)
+ goto out2;
- if (rpc_queue_upcall(idmap->idmap_dentry->d_inode, &msg) < 0) {
- remove_wait_queue(&idmap->idmap_wq, &wq);
- goto out;
- }
+ return ret;
+
+out2:
+ kfree(im);
+out1:
+ kfree(msg);
+out0:
+ key_revoke(cons->key);
+ key_revoke(cons->authkey);
+ return ret;
+}
+
+static int nfs_idmap_instantiate(struct key *key, struct key *authkey, char *data)
+{
+ return key_instantiate_and_link(key, data, strlen(data) + 1,
+ id_resolver_cache->thread_keyring,
+ authkey);
+}
- set_current_state(TASK_UNINTERRUPTIBLE);
- mutex_unlock(&idmap->idmap_im_lock);
- schedule();
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&idmap->idmap_wq, &wq);
- mutex_lock(&idmap->idmap_im_lock);
-
- if (im->im_status & IDMAP_STATUS_SUCCESS) {
- if ((len = strnlen(im->im_name, IDMAP_NAMESZ)) == 0)
- goto out;
- memcpy(name, im->im_name, len);
- ret = len;
+static int nfs_idmap_read_message(struct idmap_msg *im, struct key *key, struct key *authkey)
+{
+ char id_str[NFS_UINT_MAXLEN];
+ int ret = -EINVAL;
+
+ switch (im->im_conv) {
+ case IDMAP_CONV_NAMETOID:
+ sprintf(id_str, "%d", im->im_id);
+ ret = nfs_idmap_instantiate(key, authkey, id_str);
+ break;
+ case IDMAP_CONV_IDTONAME:
+ ret = nfs_idmap_instantiate(key, authkey, im->im_name);
+ break;
}
- out:
- memset(im, 0, sizeof(*im));
- mutex_unlock(&idmap->idmap_im_lock);
- mutex_unlock(&idmap->idmap_lock);
return ret;
}
@@ -682,115 +703,51 @@ idmap_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
{
struct rpc_inode *rpci = RPC_I(filp->f_path.dentry->d_inode);
struct idmap *idmap = (struct idmap *)rpci->private;
- struct idmap_msg im_in, *im = &idmap->idmap_im;
- struct idmap_hashtable *h;
- struct idmap_hashent *he = NULL;
+ struct key_construction *cons = idmap->idmap_key_cons;
+ struct idmap_msg im;
size_t namelen_in;
int ret;
- if (mlen != sizeof(im_in))
- return -ENOSPC;
-
- if (copy_from_user(&im_in, src, mlen) != 0)
- return -EFAULT;
-
- mutex_lock(&idmap->idmap_im_lock);
-
- ret = mlen;
- im->im_status = im_in.im_status;
- /* If we got an error, terminate now, and wake up pending upcalls */
- if (!(im_in.im_status & IDMAP_STATUS_SUCCESS)) {
- wake_up(&idmap->idmap_wq);
+ if (mlen != sizeof(im)) {
+ ret = -ENOSPC;
goto out;
}
- /* Sanity checking of strings */
- ret = -EINVAL;
- namelen_in = strnlen(im_in.im_name, IDMAP_NAMESZ);
- if (namelen_in == 0 || namelen_in == IDMAP_NAMESZ)
+ if (copy_from_user(&im, src, mlen) != 0) {
+ ret = -EFAULT;
goto out;
+ }
- switch (im_in.im_type) {
- case IDMAP_TYPE_USER:
- h = &idmap->idmap_user_hash;
- break;
- case IDMAP_TYPE_GROUP:
- h = &idmap->idmap_group_hash;
- break;
- default:
- goto out;
+ if (!(im.im_status & IDMAP_STATUS_SUCCESS)) {
+ ret = mlen;
+ complete_request_key(idmap->idmap_key_cons, -ENOKEY);
+ goto out_incomplete;
}
- switch (im_in.im_conv) {
- case IDMAP_CONV_IDTONAME:
- /* Did we match the current upcall? */
- if (im->im_conv == IDMAP_CONV_IDTONAME
- && im->im_type == im_in.im_type
- && im->im_id == im_in.im_id) {
- /* Yes: copy string, including the terminating '\0' */
- memcpy(im->im_name, im_in.im_name, namelen_in);
- im->im_name[namelen_in] = '\0';
- wake_up(&idmap->idmap_wq);
- }
- he = idmap_alloc_id(h, im_in.im_id);
- break;
- case IDMAP_CONV_NAMETOID:
- /* Did we match the current upcall? */
- if (im->im_conv == IDMAP_CONV_NAMETOID
- && im->im_type == im_in.im_type
- && strnlen(im->im_name, IDMAP_NAMESZ) == namelen_in
- && memcmp(im->im_name, im_in.im_name, namelen_in) == 0) {
- im->im_id = im_in.im_id;
- wake_up(&idmap->idmap_wq);
- }
- he = idmap_alloc_name(h, im_in.im_name, namelen_in);
- break;
- default:
+ namelen_in = strnlen(im.im_name, IDMAP_NAMESZ);
+ if (namelen_in == 0 || namelen_in == IDMAP_NAMESZ) {
+ ret = -EINVAL;
goto out;
}
- /* If the entry is valid, also copy it to the cache */
- if (he != NULL)
- idmap_update_entry(he, im_in.im_name, namelen_in, im_in.im_id);
- ret = mlen;
+ ret = nfs_idmap_read_message(&im, cons->key, cons->authkey);
+ if (ret >= 0) {
+ key_set_timeout(cons->key, nfs_idmap_cache_timeout);
+ ret = mlen;
+ }
+
out:
- mutex_unlock(&idmap->idmap_im_lock);
+ complete_request_key(idmap->idmap_key_cons, ret);
+out_incomplete:
return ret;
}
static void
idmap_pipe_destroy_msg(struct rpc_pipe_msg *msg)
{
- struct idmap_msg *im = msg->data;
- struct idmap *idmap = container_of(im, struct idmap, idmap_im);
-
- if (msg->errno >= 0)
- return;
- mutex_lock(&idmap->idmap_im_lock);
- im->im_status = IDMAP_STATUS_LOOKUPFAIL;
- wake_up(&idmap->idmap_wq);
- mutex_unlock(&idmap->idmap_im_lock);
-}
-
-/*
- * Fowler/Noll/Vo hash
- * http://www.isthe.com/chongo/tech/comp/fnv/
- */
-
-#define FNV_P_32 ((unsigned int)0x01000193) /* 16777619 */
-#define FNV_1_32 ((unsigned int)0x811c9dc5) /* 2166136261 */
-
-static unsigned int fnvhash32(const void *buf, size_t buflen)
-{
- const unsigned char *p, *end = (const unsigned char *)buf + buflen;
- unsigned int hash = FNV_1_32;
-
- for (p = buf; p < end; p++) {
- hash *= FNV_P_32;
- hash ^= (unsigned int)*p;
- }
-
- return hash;
+ /* Free memory allocated in nfs_idmap_legacy_upcall() */
+ kfree(msg->data);
+ kfree(msg);
}
int nfs_map_name_to_uid(const struct nfs_server *server, const char *name, size_t namelen, __u32 *uid)
@@ -799,16 +756,16 @@ int nfs_map_name_to_uid(const struct nfs_server *server, const char *name, size_
if (nfs_map_string_to_numeric(name, namelen, uid))
return 0;
- return nfs_idmap_id(idmap, &idmap->idmap_user_hash, name, namelen, uid);
+ return nfs_idmap_lookup_id(name, namelen, "uid", uid, idmap);
}
-int nfs_map_group_to_gid(const struct nfs_server *server, const char *name, size_t namelen, __u32 *uid)
+int nfs_map_group_to_gid(const struct nfs_server *server, const char *name, size_t namelen, __u32 *gid)
{
struct idmap *idmap = server->nfs_client->cl_idmap;
- if (nfs_map_string_to_numeric(name, namelen, uid))
+ if (nfs_map_string_to_numeric(name, namelen, gid))
return 0;
- return nfs_idmap_id(idmap, &idmap->idmap_group_hash, name, namelen, uid);
+ return nfs_idmap_lookup_id(name, namelen, "gid", gid, idmap);
}
int nfs_map_uid_to_name(const struct nfs_server *server, __u32 uid, char *buf, size_t buflen)
@@ -817,21 +774,19 @@ int nfs_map_uid_to_name(const struct nfs_server *server, __u32 uid, char *buf, s
int ret = -EINVAL;
if (!(server->caps & NFS_CAP_UIDGID_NOMAP))
- ret = nfs_idmap_name(idmap, &idmap->idmap_user_hash, uid, buf);
+ ret = nfs_idmap_lookup_name(uid, "user", buf, buflen, idmap);
if (ret < 0)
ret = nfs_map_numeric_to_string(uid, buf, buflen);
return ret;
}
-int nfs_map_gid_to_group(const struct nfs_server *server, __u32 uid, char *buf, size_t buflen)
+int nfs_map_gid_to_group(const struct nfs_server *server, __u32 gid, char *buf, size_t buflen)
{
struct idmap *idmap = server->nfs_client->cl_idmap;
int ret = -EINVAL;
if (!(server->caps & NFS_CAP_UIDGID_NOMAP))
- ret = nfs_idmap_name(idmap, &idmap->idmap_group_hash, uid, buf);
+ ret = nfs_idmap_lookup_name(gid, "group", buf, buflen, idmap);
if (ret < 0)
- ret = nfs_map_numeric_to_string(uid, buf, buflen);
+ ret = nfs_map_numeric_to_string(gid, buf, buflen);
return ret;
}
-
-#endif /* CONFIG_NFS_USE_NEW_IDMAPPER */
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index f649fba8c384..7bb4d13c1cd5 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -39,6 +39,7 @@
#include <linux/slab.h>
#include <linux/compat.h>
#include <linux/freezer.h>
+#include <linux/crc32.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -51,6 +52,7 @@
#include "fscache.h"
#include "dns_resolve.h"
#include "pnfs.h"
+#include "netns.h"
#define NFSDBG_FACILITY NFSDBG_VFS
@@ -388,9 +390,10 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
unlock_new_inode(inode);
} else
nfs_refresh_inode(inode, fattr);
- dprintk("NFS: nfs_fhget(%s/%Ld ct=%d)\n",
+ dprintk("NFS: nfs_fhget(%s/%Ld fh_crc=0x%08x ct=%d)\n",
inode->i_sb->s_id,
(long long)NFS_FILEID(inode),
+ nfs_display_fhandle_hash(fh),
atomic_read(&inode->i_count));
out:
@@ -401,7 +404,7 @@ out_no_inode:
goto out;
}
-#define NFS_VALID_ATTRS (ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_SIZE|ATTR_ATIME|ATTR_ATIME_SET|ATTR_MTIME|ATTR_MTIME_SET|ATTR_FILE)
+#define NFS_VALID_ATTRS (ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_SIZE|ATTR_ATIME|ATTR_ATIME_SET|ATTR_MTIME|ATTR_MTIME_SET|ATTR_FILE|ATTR_OPEN)
int
nfs_setattr(struct dentry *dentry, struct iattr *attr)
@@ -423,7 +426,7 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
/* Optimization: if the end result is no change, don't RPC */
attr->ia_valid &= NFS_VALID_ATTRS;
- if ((attr->ia_valid & ~ATTR_FILE) == 0)
+ if ((attr->ia_valid & ~(ATTR_FILE|ATTR_OPEN)) == 0)
return 0;
/* Write all dirty data */
@@ -1044,6 +1047,67 @@ struct nfs_fh *nfs_alloc_fhandle(void)
return fh;
}
+#ifdef NFS_DEBUG
+/*
+ * _nfs_display_fhandle_hash - calculate the crc32 hash for the filehandle
+ * in the same way that wireshark does
+ *
+ * @fh: file handle
+ *
+ * For debugging only.
+ */
+u32 _nfs_display_fhandle_hash(const struct nfs_fh *fh)
+{
+ /* wireshark uses 32-bit AUTODIN crc and does a bitwise
+ * not on the result */
+ return ~crc32(0xFFFFFFFF, &fh->data[0], fh->size);
+}
+
+/*
+ * _nfs_display_fhandle - display an NFS file handle on the console
+ *
+ * @fh: file handle to display
+ * @caption: display caption
+ *
+ * For debugging only.
+ */
+void _nfs_display_fhandle(const struct nfs_fh *fh, const char *caption)
+{
+ unsigned short i;
+
+ if (fh == NULL || fh->size == 0) {
+ printk(KERN_DEFAULT "%s at %p is empty\n", caption, fh);
+ return;
+ }
+
+ printk(KERN_DEFAULT "%s at %p is %u bytes, crc: 0x%08x:\n",
+ caption, fh, fh->size, _nfs_display_fhandle_hash(fh));
+ for (i = 0; i < fh->size; i += 16) {
+ __be32 *pos = (__be32 *)&fh->data[i];
+
+ switch ((fh->size - i - 1) >> 2) {
+ case 0:
+ printk(KERN_DEFAULT " %08x\n",
+ be32_to_cpup(pos));
+ break;
+ case 1:
+ printk(KERN_DEFAULT " %08x %08x\n",
+ be32_to_cpup(pos), be32_to_cpup(pos + 1));
+ break;
+ case 2:
+ printk(KERN_DEFAULT " %08x %08x %08x\n",
+ be32_to_cpup(pos), be32_to_cpup(pos + 1),
+ be32_to_cpup(pos + 2));
+ break;
+ default:
+ printk(KERN_DEFAULT " %08x %08x %08x %08x\n",
+ be32_to_cpup(pos), be32_to_cpup(pos + 1),
+ be32_to_cpup(pos + 2), be32_to_cpup(pos + 3));
+ }
+ }
+}
+#endif
+
/**
* nfs_inode_attrs_need_update - check if the inode attributes need updating
* @inode - pointer to inode
@@ -1211,8 +1275,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
unsigned long now = jiffies;
unsigned long save_cache_validity;
- dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
+ dfprintk(VFS, "NFS: %s(%s/%ld fh_crc=0x%08x ct=%d info=0x%x)\n",
__func__, inode->i_sb->s_id, inode->i_ino,
+ nfs_display_fhandle_hash(NFS_FH(inode)),
atomic_read(&inode->i_count), fattr->valid);
if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid)
@@ -1406,7 +1471,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
/*
* Big trouble! The inode has become a different object.
*/
- printk(KERN_DEBUG "%s: inode %ld mode changed, %07o to %07o\n",
+ printk(KERN_DEBUG "NFS: %s: inode %ld mode changed, %07o to %07o\n",
__func__, inode->i_ino, inode->i_mode, fattr->mode);
out_err:
/*
@@ -1495,7 +1560,7 @@ static void init_once(void *foo)
INIT_LIST_HEAD(&nfsi->open_files);
INIT_LIST_HEAD(&nfsi->access_cache_entry_lru);
INIT_LIST_HEAD(&nfsi->access_cache_inode_lru);
- INIT_RADIX_TREE(&nfsi->nfs_page_tree, GFP_ATOMIC);
+ INIT_LIST_HEAD(&nfsi->commit_list);
nfsi->npages = 0;
nfsi->ncommit = 0;
atomic_set(&nfsi->silly_count, 1);
@@ -1552,6 +1617,28 @@ static void nfsiod_stop(void)
destroy_workqueue(wq);
}
+int nfs_net_id;
+EXPORT_SYMBOL_GPL(nfs_net_id);
+
+static int nfs_net_init(struct net *net)
+{
+ nfs_clients_init(net);
+ return nfs_dns_resolver_cache_init(net);
+}
+
+static void nfs_net_exit(struct net *net)
+{
+ nfs_dns_resolver_cache_destroy(net);
+ nfs_cleanup_cb_ident_idr(net);
+}
+
+static struct pernet_operations nfs_net_ops = {
+ .init = nfs_net_init,
+ .exit = nfs_net_exit,
+ .id = &nfs_net_id,
+ .size = sizeof(struct nfs_net),
+};
+
/*
* Initialize NFS
*/
@@ -1561,10 +1648,14 @@ static int __init init_nfs_fs(void)
err = nfs_idmap_init();
if (err < 0)
- goto out9;
+ goto out10;
err = nfs_dns_resolver_init();
if (err < 0)
+ goto out9;
+
+ err = register_pernet_subsys(&nfs_net_ops);
+ if (err < 0)
goto out8;
err = nfs_fscache_register();
@@ -1600,14 +1691,14 @@ static int __init init_nfs_fs(void)
goto out0;
#ifdef CONFIG_PROC_FS
- rpc_proc_register(&nfs_rpcstat);
+ rpc_proc_register(&init_net, &nfs_rpcstat);
#endif
if ((err = register_nfs_fs()) != 0)
goto out;
return 0;
out:
#ifdef CONFIG_PROC_FS
- rpc_proc_unregister("nfs");
+ rpc_proc_unregister(&init_net, "nfs");
#endif
nfs_destroy_directcache();
out0:
@@ -1625,10 +1716,12 @@ out5:
out6:
nfs_fscache_unregister();
out7:
- nfs_dns_resolver_destroy();
+ unregister_pernet_subsys(&nfs_net_ops);
out8:
- nfs_idmap_quit();
+ nfs_dns_resolver_destroy();
out9:
+ nfs_idmap_quit();
+out10:
return err;
}
@@ -1640,12 +1733,12 @@ static void __exit exit_nfs_fs(void)
nfs_destroy_inodecache();
nfs_destroy_nfspagecache();
nfs_fscache_unregister();
+ unregister_pernet_subsys(&nfs_net_ops);
nfs_dns_resolver_destroy();
nfs_idmap_quit();
#ifdef CONFIG_PROC_FS
- rpc_proc_unregister("nfs");
+ rpc_proc_unregister(&init_net, "nfs");
#endif
- nfs_cleanup_cb_ident_idr();
unregister_nfs_fs();
nfs_fs_proc_exit();
nfsiod_stop();
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 8102db9b926c..2476dc69365f 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -123,6 +123,7 @@ struct nfs_parsed_mount_data {
} nfs_server;
struct security_mnt_opts lsm_opts;
+ struct net *net;
};
/* mount_clnt.c */
@@ -137,20 +138,22 @@ struct nfs_mount_request {
int noresvport;
unsigned int *auth_flav_len;
rpc_authflavor_t *auth_flavs;
+ struct net *net;
};
extern int nfs_mount(struct nfs_mount_request *info);
extern void nfs_umount(const struct nfs_mount_request *info);
/* client.c */
-extern struct rpc_program nfs_program;
+extern const struct rpc_program nfs_program;
+extern void nfs_clients_init(struct net *net);
-extern void nfs_cleanup_cb_ident_idr(void);
+extern void nfs_cleanup_cb_ident_idr(struct net *);
extern void nfs_put_client(struct nfs_client *);
-extern struct nfs_client *nfs4_find_client_no_ident(const struct sockaddr *);
-extern struct nfs_client *nfs4_find_client_ident(int);
+extern struct nfs_client *nfs4_find_client_ident(struct net *, int);
extern struct nfs_client *
-nfs4_find_client_sessionid(const struct sockaddr *, struct nfs4_sessionid *);
+nfs4_find_client_sessionid(struct net *, const struct sockaddr *,
+ struct nfs4_sessionid *);
extern struct nfs_server *nfs_create_server(
const struct nfs_parsed_mount_data *,
struct nfs_fh *);
@@ -329,6 +332,8 @@ void nfs_retry_commit(struct list_head *page_list,
void nfs_commit_clear_lock(struct nfs_inode *nfsi);
void nfs_commitdata_release(void *data);
void nfs_commit_release_pages(struct nfs_write_data *data);
+void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *head);
+void nfs_request_remove_commit_list(struct nfs_page *req);
#ifdef CONFIG_MIGRATION
extern int nfs_migrate_page(struct address_space *,
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index d4c2d6b7507e..8e65c7f1f87c 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -16,7 +16,7 @@
#include <linux/nfs_fs.h>
#include "internal.h"
-#ifdef RPC_DEBUG
+#ifdef NFS_DEBUG
# define NFSDBG_FACILITY NFSDBG_MOUNT
#endif
@@ -67,7 +67,7 @@ enum {
MOUNTPROC3_EXPORT = 5,
};
-static struct rpc_program mnt_program;
+static const struct rpc_program mnt_program;
/*
* Defined by OpenGroup XNFS Version 3W, chapter 8
@@ -153,7 +153,7 @@ int nfs_mount(struct nfs_mount_request *info)
.rpc_resp = &result,
};
struct rpc_create_args args = {
- .net = &init_net,
+ .net = info->net,
.protocol = info->protocol,
.address = info->sap,
.addrsize = info->salen,
@@ -225,7 +225,7 @@ void nfs_umount(const struct nfs_mount_request *info)
.to_retries = 2,
};
struct rpc_create_args args = {
- .net = &init_net,
+ .net = info->net,
.protocol = IPPROTO_UDP,
.address = info->sap,
.addrsize = info->salen,
@@ -488,19 +488,19 @@ static struct rpc_procinfo mnt3_procedures[] = {
};
-static struct rpc_version mnt_version1 = {
+static const struct rpc_version mnt_version1 = {
.number = 1,
.nrprocs = ARRAY_SIZE(mnt_procedures),
.procs = mnt_procedures,
};
-static struct rpc_version mnt_version3 = {
+static const struct rpc_version mnt_version3 = {
.number = 3,
.nrprocs = ARRAY_SIZE(mnt3_procedures),
.procs = mnt3_procedures,
};
-static struct rpc_version *mnt_version[] = {
+static const struct rpc_version *mnt_version[] = {
NULL,
&mnt_version1,
NULL,
@@ -509,7 +509,7 @@ static struct rpc_version *mnt_version[] = {
static struct rpc_stat mnt_stats;
-static struct rpc_program mnt_program = {
+static const struct rpc_program mnt_program = {
.name = "mount",
.number = NFS_MNT_PROGRAM,
.nrvers = ARRAY_SIZE(mnt_version),
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 8102391bb374..1807866bb3ab 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -276,7 +276,10 @@ out:
nfs_free_fattr(fattr);
nfs_free_fhandle(fh);
out_nofree:
- dprintk("<-- nfs_follow_mountpoint() = %p\n", mnt);
+ if (IS_ERR(mnt))
+ dprintk("<-- %s(): error %ld\n", __func__, PTR_ERR(mnt));
+ else
+ dprintk("<-- %s() = %p\n", __func__, mnt);
return mnt;
}
diff --git a/fs/nfs/netns.h b/fs/nfs/netns.h
new file mode 100644
index 000000000000..aa14ec303e94
--- /dev/null
+++ b/fs/nfs/netns.h
@@ -0,0 +1,27 @@
+#ifndef __NFS_NETNS_H__
+#define __NFS_NETNS_H__
+
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+
+struct bl_dev_msg {
+ int32_t status;
+ uint32_t major, minor;
+};
+
+struct nfs_net {
+ struct cache_detail *nfs_dns_resolve;
+ struct rpc_pipe *bl_device_pipe;
+ struct bl_dev_msg bl_mount_reply;
+ wait_queue_head_t bl_wq;
+ struct list_head nfs_client_list;
+ struct list_head nfs_volume_list;
+#ifdef CONFIG_NFS_V4
+ struct idr cb_ident_idr; /* Protected by nfs_client_lock */
+#endif
+ spinlock_t nfs_client_lock;
+};
+
+extern int nfs_net_id;
+
+#endif
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index 792cb13a4304..1f56000fabbd 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -1150,7 +1150,7 @@ struct rpc_procinfo nfs_procedures[] = {
PROC(STATFS, fhandle, statfsres, 0),
};
-struct rpc_version nfs_version2 = {
+const struct rpc_version nfs_version2 = {
.number = 2,
.nrprocs = ARRAY_SIZE(nfs_procedures),
.procs = nfs_procedures
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index 7ef23979896d..e4498dc351a8 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -192,7 +192,7 @@ struct posix_acl *nfs3_proc_getacl(struct inode *inode, int type)
.pages = pages,
};
struct nfs3_getaclres res = {
- 0
+ NULL,
};
struct rpc_message msg = {
.rpc_argp = &args,
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 91943953a370..5242eae6711a 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -428,6 +428,11 @@ nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
}
+static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
+{
+ rpc_call_start(task);
+}
+
static int
nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
@@ -445,6 +450,11 @@ nfs3_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME];
}
+static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
+{
+ rpc_call_start(task);
+}
+
static int
nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
struct inode *new_dir)
@@ -814,6 +824,11 @@ static void nfs3_proc_read_setup(struct nfs_read_data *data, struct rpc_message
msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ];
}
+static void nfs3_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_read_data *data)
+{
+ rpc_call_start(task);
+}
+
static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
if (nfs3_async_handle_jukebox(task, data->inode))
@@ -828,6 +843,11 @@ static void nfs3_proc_write_setup(struct nfs_write_data *data, struct rpc_messag
msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE];
}
+static void nfs3_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_write_data *data)
+{
+ rpc_call_start(task);
+}
+
static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data)
{
if (nfs3_async_handle_jukebox(task, data->inode))
@@ -864,9 +884,11 @@ const struct nfs_rpc_ops nfs_v3_clientops = {
.create = nfs3_proc_create,
.remove = nfs3_proc_remove,
.unlink_setup = nfs3_proc_unlink_setup,
+ .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare,
.unlink_done = nfs3_proc_unlink_done,
.rename = nfs3_proc_rename,
.rename_setup = nfs3_proc_rename_setup,
+ .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare,
.rename_done = nfs3_proc_rename_done,
.link = nfs3_proc_link,
.symlink = nfs3_proc_symlink,
@@ -879,8 +901,10 @@ const struct nfs_rpc_ops nfs_v3_clientops = {
.pathconf = nfs3_proc_pathconf,
.decode_dirent = nfs3_decode_dirent,
.read_setup = nfs3_proc_read_setup,
+ .read_rpc_prepare = nfs3_proc_read_rpc_prepare,
.read_done = nfs3_read_done,
.write_setup = nfs3_proc_write_setup,
+ .write_rpc_prepare = nfs3_proc_write_rpc_prepare,
.write_done = nfs3_write_done,
.commit_setup = nfs3_proc_commit_setup,
.commit_done = nfs3_commit_done,
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index 183c6b123d0f..a77cc9a3ce55 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -2461,7 +2461,7 @@ struct rpc_procinfo nfs3_procedures[] = {
PROC(COMMIT, commit, commit, 5),
};
-struct rpc_version nfs_version3 = {
+const struct rpc_version nfs_version3 = {
.number = 3,
.nrprocs = ARRAY_SIZE(nfs3_procedures),
.procs = nfs3_procedures
@@ -2489,7 +2489,7 @@ static struct rpc_procinfo nfs3_acl_procedures[] = {
},
};
-struct rpc_version nfsacl_version3 = {
+const struct rpc_version nfsacl_version3 = {
.number = 3,
.nrprocs = sizeof(nfs3_acl_procedures)/
sizeof(nfs3_acl_procedures[0]),
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 4d7d0aedc101..97ecc863dd76 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -20,7 +20,6 @@ enum nfs4_client_state {
NFS4CLNT_RECLAIM_REBOOT,
NFS4CLNT_RECLAIM_NOGRACE,
NFS4CLNT_DELEGRETURN,
- NFS4CLNT_LAYOUTRECALL,
NFS4CLNT_SESSION_RESET,
NFS4CLNT_RECALL_SLOT,
NFS4CLNT_LEASE_CONFIRM,
@@ -44,7 +43,7 @@ struct nfs4_minor_version_ops {
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int cache_reply);
- int (*validate_stateid)(struct nfs_delegation *,
+ bool (*match_stateid)(const nfs4_stateid *,
const nfs4_stateid *);
int (*find_root_sec)(struct nfs_server *, struct nfs_fh *,
struct nfs_fsinfo *);
@@ -53,26 +52,25 @@ struct nfs4_minor_version_ops {
const struct nfs4_state_maintenance_ops *state_renewal_ops;
};
-/*
- * struct rpc_sequence ensures that RPC calls are sent in the exact
- * order that they appear on the list.
- */
-struct rpc_sequence {
- struct rpc_wait_queue wait; /* RPC call delay queue */
- spinlock_t lock; /* Protects the list */
- struct list_head list; /* Defines sequence of RPC calls */
+struct nfs_unique_id {
+ struct rb_node rb_node;
+ __u64 id;
};
#define NFS_SEQID_CONFIRMED 1
struct nfs_seqid_counter {
- struct rpc_sequence *sequence;
+ int owner_id;
int flags;
u32 counter;
+ spinlock_t lock; /* Protects the list */
+ struct list_head list; /* Defines sequence of RPC calls */
+ struct rpc_wait_queue wait; /* RPC call delay queue */
};
struct nfs_seqid {
struct nfs_seqid_counter *sequence;
struct list_head list;
+ struct rpc_task *task;
};
static inline void nfs_confirm_seqid(struct nfs_seqid_counter *seqid, int status)
@@ -81,18 +79,12 @@ static inline void nfs_confirm_seqid(struct nfs_seqid_counter *seqid, int status
seqid->flags |= NFS_SEQID_CONFIRMED;
}
-struct nfs_unique_id {
- struct rb_node rb_node;
- __u64 id;
-};
-
/*
* NFS4 state_owners and lock_owners are simply labels for ordered
* sequences of RPC calls. Their sole purpose is to provide once-only
* semantics by allowing the server to identify replayed requests.
*/
struct nfs4_state_owner {
- struct nfs_unique_id so_owner_id;
struct nfs_server *so_server;
struct list_head so_lru;
unsigned long so_expires;
@@ -105,7 +97,6 @@ struct nfs4_state_owner {
unsigned long so_flags;
struct list_head so_states;
struct nfs_seqid_counter so_seqid;
- struct rpc_sequence so_sequence;
};
enum {
@@ -146,8 +137,6 @@ struct nfs4_lock_state {
#define NFS_LOCK_INITIALIZED 1
int ls_flags;
struct nfs_seqid_counter ls_seqid;
- struct rpc_sequence ls_sequence;
- struct nfs_unique_id ls_id;
nfs4_stateid ls_stateid;
atomic_t ls_count;
struct nfs4_lock_owner ls_owner;
@@ -193,6 +182,7 @@ struct nfs4_exception {
long timeout;
int retry;
struct nfs4_state *state;
+ struct inode *inode;
};
struct nfs4_state_recovery_ops {
@@ -224,7 +214,7 @@ extern int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait, boo
extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
extern int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
struct nfs4_fs_locations *fs_locations, struct page *page);
-extern void nfs4_release_lockowner(const struct nfs4_lock_state *);
+extern int nfs4_release_lockowner(struct nfs4_lock_state *);
extern const struct xattr_handler *nfs4_xattr_handlers[];
#if defined(CONFIG_NFS_V4_1)
@@ -233,12 +223,13 @@ static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *ser
return server->nfs_client->cl_session;
}
+extern bool nfs4_set_task_privileged(struct rpc_task *task, void *dummy);
extern int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
- int cache_reply, struct rpc_task *task);
+ struct rpc_task *task);
extern int nfs41_setup_sequence(struct nfs4_session *session,
struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
- int cache_reply, struct rpc_task *task);
+ struct rpc_task *task);
extern void nfs4_destroy_session(struct nfs4_session *session);
extern struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp);
extern int nfs4_proc_create_session(struct nfs_client *);
@@ -269,7 +260,7 @@ static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *ser
static inline int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
- int cache_reply, struct rpc_task *task)
+ struct rpc_task *task)
{
return 0;
}
@@ -319,7 +310,7 @@ static inline void nfs4_schedule_session_recovery(struct nfs4_session *session)
}
#endif /* CONFIG_NFS_V4_1 */
-extern struct nfs4_state_owner * nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *);
+extern struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *, gfp_t);
extern void nfs4_put_state_owner(struct nfs4_state_owner *);
extern void nfs4_purge_state_owners(struct nfs_server *);
extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *);
@@ -327,6 +318,8 @@ extern void nfs4_put_open_state(struct nfs4_state *);
extern void nfs4_close_state(struct nfs4_state *, fmode_t);
extern void nfs4_close_sync(struct nfs4_state *, fmode_t);
extern void nfs4_state_set_mode_locked(struct nfs4_state *, fmode_t);
+extern void nfs_inode_find_state_and_recover(struct inode *inode,
+ const nfs4_stateid *stateid);
extern void nfs4_schedule_lease_recovery(struct nfs_client *);
extern void nfs4_schedule_state_manager(struct nfs_client *);
extern void nfs4_schedule_path_down_recovery(struct nfs_client *clp);
@@ -337,7 +330,8 @@ extern void nfs41_handle_server_scope(struct nfs_client *,
struct server_scope **);
extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
-extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t, pid_t);
+extern void nfs4_select_rw_stateid(nfs4_stateid *, struct nfs4_state *,
+ fmode_t, fl_owner_t, pid_t);
extern struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_mask);
extern int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task);
@@ -346,6 +340,8 @@ extern void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid);
extern void nfs_release_seqid(struct nfs_seqid *seqid);
extern void nfs_free_seqid(struct nfs_seqid *seqid);
+extern void nfs4_free_lock_state(struct nfs_server *server, struct nfs4_lock_state *lsp);
+
extern const nfs4_stateid zero_stateid;
/* nfs4xdr.c */
@@ -357,6 +353,16 @@ struct nfs4_mount_data;
extern struct svc_version nfs4_callback_version1;
extern struct svc_version nfs4_callback_version4;
+static inline void nfs4_stateid_copy(nfs4_stateid *dst, const nfs4_stateid *src)
+{
+ memcpy(dst, src, sizeof(*dst));
+}
+
+static inline bool nfs4_stateid_match(const nfs4_stateid *dst, const nfs4_stateid *src)
+{
+ return memcmp(dst, src, sizeof(*dst)) == 0;
+}
+
#else
#define nfs4_close_state(a, b) do { } while (0)
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index 71ec08617e23..634c0bcb4fd6 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -33,7 +33,10 @@
#include <linux/nfs_page.h>
#include <linux/module.h>
+#include <linux/sunrpc/metrics.h>
+
#include "internal.h"
+#include "delegation.h"
#include "nfs4filelayout.h"
#define NFSDBG_FACILITY NFSDBG_PNFS_LD
@@ -84,12 +87,27 @@ static int filelayout_async_handle_error(struct rpc_task *task,
struct nfs_client *clp,
int *reset)
{
+ struct nfs_server *mds_server = NFS_SERVER(state->inode);
+ struct nfs_client *mds_client = mds_server->nfs_client;
+
if (task->tk_status >= 0)
return 0;
-
*reset = 0;
switch (task->tk_status) {
+ /* MDS state errors */
+ case -NFS4ERR_DELEG_REVOKED:
+ case -NFS4ERR_ADMIN_REVOKED:
+ case -NFS4ERR_BAD_STATEID:
+ nfs_remove_bad_delegation(state->inode);
+ case -NFS4ERR_OPENMODE:
+ nfs4_schedule_stateid_recovery(mds_server, state);
+ goto wait_on_recovery;
+ case -NFS4ERR_EXPIRED:
+ nfs4_schedule_stateid_recovery(mds_server, state);
+ nfs4_schedule_lease_recovery(mds_client);
+ goto wait_on_recovery;
+ /* DS session errors */
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
@@ -115,8 +133,14 @@ static int filelayout_async_handle_error(struct rpc_task *task,
*reset = 1;
break;
}
+out:
task->tk_status = 0;
return -EAGAIN;
+wait_on_recovery:
+ rpc_sleep_on(&mds_client->cl_rpcwaitq, task, NULL);
+ if (test_bit(NFS4CLNT_MANAGER_RUNNING, &mds_client->cl_state) == 0)
+ rpc_wake_up_queued_task(&mds_client->cl_rpcwaitq, task);
+ goto out;
}
/* NFS_PROTO call done callback routines */
@@ -173,7 +197,7 @@ static void filelayout_read_prepare(struct rpc_task *task, void *data)
if (nfs41_setup_sequence(rdata->ds_clp->cl_session,
&rdata->args.seq_args, &rdata->res.seq_res,
- 0, task))
+ task))
return;
rpc_call_start(task);
@@ -189,10 +213,18 @@ static void filelayout_read_call_done(struct rpc_task *task, void *data)
rdata->mds_ops->rpc_call_done(task, data);
}
+static void filelayout_read_count_stats(struct rpc_task *task, void *data)
+{
+ struct nfs_read_data *rdata = (struct nfs_read_data *)data;
+
+ rpc_count_iostats(task, NFS_SERVER(rdata->inode)->client->cl_metrics);
+}
+
static void filelayout_read_release(void *data)
{
struct nfs_read_data *rdata = (struct nfs_read_data *)data;
+ put_lseg(rdata->lseg);
rdata->mds_ops->rpc_release(data);
}
@@ -254,7 +286,7 @@ static void filelayout_write_prepare(struct rpc_task *task, void *data)
if (nfs41_setup_sequence(wdata->ds_clp->cl_session,
&wdata->args.seq_args, &wdata->res.seq_res,
- 0, task))
+ task))
return;
rpc_call_start(task);
@@ -268,10 +300,18 @@ static void filelayout_write_call_done(struct rpc_task *task, void *data)
wdata->mds_ops->rpc_call_done(task, data);
}
+static void filelayout_write_count_stats(struct rpc_task *task, void *data)
+{
+ struct nfs_write_data *wdata = (struct nfs_write_data *)data;
+
+ rpc_count_iostats(task, NFS_SERVER(wdata->inode)->client->cl_metrics);
+}
+
static void filelayout_write_release(void *data)
{
struct nfs_write_data *wdata = (struct nfs_write_data *)data;
+ put_lseg(wdata->lseg);
wdata->mds_ops->rpc_release(data);
}
@@ -282,24 +322,28 @@ static void filelayout_commit_release(void *data)
nfs_commit_release_pages(wdata);
if (atomic_dec_and_test(&NFS_I(wdata->inode)->commits_outstanding))
nfs_commit_clear_lock(NFS_I(wdata->inode));
+ put_lseg(wdata->lseg);
nfs_commitdata_release(wdata);
}
-struct rpc_call_ops filelayout_read_call_ops = {
+static const struct rpc_call_ops filelayout_read_call_ops = {
.rpc_call_prepare = filelayout_read_prepare,
.rpc_call_done = filelayout_read_call_done,
+ .rpc_count_stats = filelayout_read_count_stats,
.rpc_release = filelayout_read_release,
};
-struct rpc_call_ops filelayout_write_call_ops = {
+static const struct rpc_call_ops filelayout_write_call_ops = {
.rpc_call_prepare = filelayout_write_prepare,
.rpc_call_done = filelayout_write_call_done,
+ .rpc_count_stats = filelayout_write_count_stats,
.rpc_release = filelayout_write_release,
};
-struct rpc_call_ops filelayout_commit_call_ops = {
+static const struct rpc_call_ops filelayout_commit_call_ops = {
.rpc_call_prepare = filelayout_write_prepare,
.rpc_call_done = filelayout_write_call_done,
+ .rpc_count_stats = filelayout_write_count_stats,
.rpc_release = filelayout_commit_release,
};
@@ -367,7 +411,8 @@ filelayout_write_pagelist(struct nfs_write_data *data, int sync)
idx = nfs4_fl_calc_ds_index(lseg, j);
ds = nfs4_fl_prepare_ds(lseg, idx);
if (!ds) {
- printk(KERN_ERR "%s: prepare_ds failed, use MDS\n", __func__);
+ printk(KERN_ERR "NFS: %s: prepare_ds failed, use MDS\n",
+ __func__);
set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
return PNFS_NOT_ATTEMPTED;
@@ -575,7 +620,7 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo,
goto out_err_free;
fl->fh_array[i]->size = be32_to_cpup(p++);
if (sizeof(struct nfs_fh) < fl->fh_array[i]->size) {
- printk(KERN_ERR "Too big fh %d received %d\n",
+ printk(KERN_ERR "NFS: Too big fh %d received %d\n",
i, fl->fh_array[i]->size);
goto out_err_free;
}
@@ -640,14 +685,16 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid,
int size = (fl->stripe_type == STRIPE_SPARSE) ?
fl->dsaddr->ds_num : fl->dsaddr->stripe_count;
- fl->commit_buckets = kcalloc(size, sizeof(struct list_head), gfp_flags);
+ fl->commit_buckets = kcalloc(size, sizeof(struct nfs4_fl_commit_bucket), gfp_flags);
if (!fl->commit_buckets) {
filelayout_free_lseg(&fl->generic_hdr);
return NULL;
}
fl->number_of_buckets = size;
- for (i = 0; i < size; i++)
- INIT_LIST_HEAD(&fl->commit_buckets[i]);
+ for (i = 0; i < size; i++) {
+ INIT_LIST_HEAD(&fl->commit_buckets[i].written);
+ INIT_LIST_HEAD(&fl->commit_buckets[i].committing);
+ }
}
return &fl->generic_hdr;
}
@@ -679,7 +726,7 @@ filelayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev,
return (p_stripe == r_stripe);
}
-void
+static void
filelayout_pg_init_read(struct nfs_pageio_descriptor *pgio,
struct nfs_page *req)
{
@@ -696,7 +743,7 @@ filelayout_pg_init_read(struct nfs_pageio_descriptor *pgio,
nfs_pageio_reset_read_mds(pgio);
}
-void
+static void
filelayout_pg_init_write(struct nfs_pageio_descriptor *pgio,
struct nfs_page *req)
{
@@ -725,11 +772,6 @@ static const struct nfs_pageio_ops filelayout_pg_write_ops = {
.pg_doio = pnfs_generic_pg_writepages,
};
-static bool filelayout_mark_pnfs_commit(struct pnfs_layout_segment *lseg)
-{
- return !FILELAYOUT_LSEG(lseg)->commit_through_mds;
-}
-
static u32 select_bucket_index(struct nfs4_filelayout_segment *fl, u32 j)
{
if (fl->stripe_type == STRIPE_SPARSE)
@@ -738,13 +780,49 @@ static u32 select_bucket_index(struct nfs4_filelayout_segment *fl, u32 j)
return j;
}
-struct list_head *filelayout_choose_commit_list(struct nfs_page *req)
+/* The generic layer is about to remove the req from the commit list.
+ * If this will make the bucket empty, it will need to put the lseg reference.
+ */
+static void
+filelayout_clear_request_commit(struct nfs_page *req)
+{
+ struct pnfs_layout_segment *freeme = NULL;
+ struct inode *inode = req->wb_context->dentry->d_inode;
+
+ spin_lock(&inode->i_lock);
+ if (!test_and_clear_bit(PG_COMMIT_TO_DS, &req->wb_flags))
+ goto out;
+ if (list_is_singular(&req->wb_list)) {
+ struct inode *inode = req->wb_context->dentry->d_inode;
+ struct pnfs_layout_segment *lseg;
+
+ /* From here we can find the bucket, but for the moment,
+ * since there is only one relevant lseg...
+ */
+ list_for_each_entry(lseg, &NFS_I(inode)->layout->plh_segs, pls_list) {
+ if (lseg->pls_range.iomode == IOMODE_RW) {
+ freeme = lseg;
+ break;
+ }
+ }
+ }
+out:
+ nfs_request_remove_commit_list(req);
+ spin_unlock(&inode->i_lock);
+ put_lseg(freeme);
+}
+
+static struct list_head *
+filelayout_choose_commit_list(struct nfs_page *req,
+ struct pnfs_layout_segment *lseg)
{
- struct pnfs_layout_segment *lseg = req->wb_commit_lseg;
struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
u32 i, j;
struct list_head *list;
+ if (fl->commit_through_mds)
+ return &NFS_I(req->wb_context->dentry->d_inode)->commit_list;
+
/* Note that we are calling nfs4_fl_calc_j_index on each page
* that ends up being committed to a data server. An attractive
* alternative is to add a field to nfs_write_data and nfs_page
@@ -754,14 +832,30 @@ struct list_head *filelayout_choose_commit_list(struct nfs_page *req)
j = nfs4_fl_calc_j_index(lseg,
(loff_t)req->wb_index << PAGE_CACHE_SHIFT);
i = select_bucket_index(fl, j);
- list = &fl->commit_buckets[i];
+ list = &fl->commit_buckets[i].written;
if (list_empty(list)) {
- /* Non-empty buckets hold a reference on the lseg */
+ /* Non-empty buckets hold a reference on the lseg. That ref
+ * is normally transferred to the COMMIT call and released
+ * there. It could also be released if the last req is pulled
+ * off due to a rewrite, in which case it will be done in
+ * filelayout_remove_commit_req
+ */
get_lseg(lseg);
}
+ set_bit(PG_COMMIT_TO_DS, &req->wb_flags);
return list;
}
+static void
+filelayout_mark_request_commit(struct nfs_page *req,
+ struct pnfs_layout_segment *lseg)
+{
+ struct list_head *list;
+
+ list = filelayout_choose_commit_list(req, lseg);
+ nfs_request_add_commit_list(req, list);
+}
+
static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i)
{
struct nfs4_filelayout_segment *flseg = FILELAYOUT_LSEG(lseg);
@@ -797,11 +891,12 @@ static int filelayout_initiate_commit(struct nfs_write_data *data, int how)
idx = calc_ds_index_from_commit(lseg, data->ds_commit_index);
ds = nfs4_fl_prepare_ds(lseg, idx);
if (!ds) {
- printk(KERN_ERR "%s: prepare_ds failed, use MDS\n", __func__);
+ printk(KERN_ERR "NFS: %s: prepare_ds failed, use MDS\n",
+ __func__);
set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
prepare_to_resend_writes(data);
- data->mds_ops->rpc_release(data);
+ filelayout_commit_release(data);
return -EAGAIN;
}
dprintk("%s ino %lu, how %d\n", __func__, data->inode->i_ino, how);
@@ -817,24 +912,87 @@ static int filelayout_initiate_commit(struct nfs_write_data *data, int how)
/*
* This is only useful while we are using whole file layouts.
*/
-static struct pnfs_layout_segment *find_only_write_lseg(struct inode *inode)
+static struct pnfs_layout_segment *
+find_only_write_lseg_locked(struct inode *inode)
{
- struct pnfs_layout_segment *lseg, *rv = NULL;
+ struct pnfs_layout_segment *lseg;
- spin_lock(&inode->i_lock);
list_for_each_entry(lseg, &NFS_I(inode)->layout->plh_segs, pls_list)
if (lseg->pls_range.iomode == IOMODE_RW)
- rv = get_lseg(lseg);
+ return lseg;
+ return NULL;
+}
+
+static struct pnfs_layout_segment *find_only_write_lseg(struct inode *inode)
+{
+ struct pnfs_layout_segment *rv;
+
+ spin_lock(&inode->i_lock);
+ rv = find_only_write_lseg_locked(inode);
+ if (rv)
+ get_lseg(rv);
spin_unlock(&inode->i_lock);
return rv;
}
-static int alloc_ds_commits(struct inode *inode, struct list_head *list)
+static int
+filelayout_scan_ds_commit_list(struct nfs4_fl_commit_bucket *bucket, int max,
+ spinlock_t *lock)
+{
+ struct list_head *src = &bucket->written;
+ struct list_head *dst = &bucket->committing;
+ struct nfs_page *req, *tmp;
+ int ret = 0;
+
+ list_for_each_entry_safe(req, tmp, src, wb_list) {
+ if (!nfs_lock_request(req))
+ continue;
+ if (cond_resched_lock(lock))
+ list_safe_reset_next(req, tmp, wb_list);
+ nfs_request_remove_commit_list(req);
+ clear_bit(PG_COMMIT_TO_DS, &req->wb_flags);
+ nfs_list_add_request(req, dst);
+ ret++;
+ if (ret == max)
+ break;
+ }
+ return ret;
+}
+
+/* Move reqs from written to committing lists, returning count of number moved.
+ * Note called with i_lock held.
+ */
+static int filelayout_scan_commit_lists(struct inode *inode, int max,
+ spinlock_t *lock)
+{
+ struct pnfs_layout_segment *lseg;
+ struct nfs4_filelayout_segment *fl;
+ int i, rv = 0, cnt;
+
+ lseg = find_only_write_lseg_locked(inode);
+ if (!lseg)
+ goto out_done;
+ fl = FILELAYOUT_LSEG(lseg);
+ if (fl->commit_through_mds)
+ goto out_done;
+ for (i = 0; i < fl->number_of_buckets && max != 0; i++) {
+ cnt = filelayout_scan_ds_commit_list(&fl->commit_buckets[i],
+ max, lock);
+ max -= cnt;
+ rv += cnt;
+ }
+out_done:
+ return rv;
+}
+
+static unsigned int
+alloc_ds_commits(struct inode *inode, struct list_head *list)
{
struct pnfs_layout_segment *lseg;
struct nfs4_filelayout_segment *fl;
struct nfs_write_data *data;
int i, j;
+ unsigned int nreq = 0;
/* Won't need this when non-whole file layout segments are supported
* instead we will use a pnfs_layout_hdr structure */
@@ -843,28 +1001,27 @@ static int alloc_ds_commits(struct inode *inode, struct list_head *list)
return 0;
fl = FILELAYOUT_LSEG(lseg);
for (i = 0; i < fl->number_of_buckets; i++) {
- if (list_empty(&fl->commit_buckets[i]))
+ if (list_empty(&fl->commit_buckets[i].committing))
continue;
data = nfs_commitdata_alloc();
if (!data)
- goto out_bad;
+ break;
data->ds_commit_index = i;
data->lseg = lseg;
list_add(&data->pages, list);
+ nreq++;
}
- put_lseg(lseg);
- return 0;
-out_bad:
+ /* Clean up on error */
for (j = i; j < fl->number_of_buckets; j++) {
- if (list_empty(&fl->commit_buckets[i]))
+ if (list_empty(&fl->commit_buckets[i].committing))
continue;
- nfs_retry_commit(&fl->commit_buckets[i], lseg);
+ nfs_retry_commit(&fl->commit_buckets[i].committing, lseg);
put_lseg(lseg); /* associated with emptying bucket */
}
put_lseg(lseg);
/* Caller will clean up entries put on list */
- return -ENOMEM;
+ return nreq;
}
/* This follows nfs_commit_list pretty closely */
@@ -874,40 +1031,40 @@ filelayout_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
{
struct nfs_write_data *data, *tmp;
LIST_HEAD(list);
+ unsigned int nreq = 0;
if (!list_empty(mds_pages)) {
data = nfs_commitdata_alloc();
- if (!data)
- goto out_bad;
- data->lseg = NULL;
- list_add(&data->pages, &list);
+ if (data != NULL) {
+ data->lseg = NULL;
+ list_add(&data->pages, &list);
+ nreq++;
+ } else
+ nfs_retry_commit(mds_pages, NULL);
}
- if (alloc_ds_commits(inode, &list))
- goto out_bad;
+ nreq += alloc_ds_commits(inode, &list);
+
+ if (nreq == 0) {
+ nfs_commit_clear_lock(NFS_I(inode));
+ goto out;
+ }
+
+ atomic_add(nreq, &NFS_I(inode)->commits_outstanding);
list_for_each_entry_safe(data, tmp, &list, pages) {
list_del_init(&data->pages);
- atomic_inc(&NFS_I(inode)->commits_outstanding);
if (!data->lseg) {
nfs_init_commit(data, mds_pages, NULL);
nfs_initiate_commit(data, NFS_CLIENT(inode),
data->mds_ops, how);
} else {
- nfs_init_commit(data, &FILELAYOUT_LSEG(data->lseg)->commit_buckets[data->ds_commit_index], data->lseg);
+ nfs_init_commit(data, &FILELAYOUT_LSEG(data->lseg)->commit_buckets[data->ds_commit_index].committing, data->lseg);
filelayout_initiate_commit(data, how);
}
}
- return 0;
- out_bad:
- list_for_each_entry_safe(data, tmp, &list, pages) {
- nfs_retry_commit(&data->pages, data->lseg);
- list_del_init(&data->pages);
- nfs_commit_free(data);
- }
- nfs_retry_commit(mds_pages, NULL);
- nfs_commit_clear_lock(NFS_I(inode));
- return -ENOMEM;
+out:
+ return PNFS_ATTEMPTED;
}
static void
@@ -924,8 +1081,9 @@ static struct pnfs_layoutdriver_type filelayout_type = {
.free_lseg = filelayout_free_lseg,
.pg_read_ops = &filelayout_pg_read_ops,
.pg_write_ops = &filelayout_pg_write_ops,
- .mark_pnfs_commit = filelayout_mark_pnfs_commit,
- .choose_commit_list = filelayout_choose_commit_list,
+ .mark_request_commit = filelayout_mark_request_commit,
+ .clear_request_commit = filelayout_clear_request_commit,
+ .scan_commit_lists = filelayout_scan_commit_lists,
.commit_pagelist = filelayout_commit_pagelist,
.read_pagelist = filelayout_read_pagelist,
.write_pagelist = filelayout_write_pagelist,
diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h
index 2e42284253fa..21190bb1f5e3 100644
--- a/fs/nfs/nfs4filelayout.h
+++ b/fs/nfs/nfs4filelayout.h
@@ -74,6 +74,11 @@ struct nfs4_file_layout_dsaddr {
struct nfs4_pnfs_ds *ds_list[1];
};
+struct nfs4_fl_commit_bucket {
+ struct list_head written;
+ struct list_head committing;
+};
+
struct nfs4_filelayout_segment {
struct pnfs_layout_segment generic_hdr;
u32 stripe_type;
@@ -84,7 +89,7 @@ struct nfs4_filelayout_segment {
struct nfs4_file_layout_dsaddr *dsaddr; /* Point to GETDEVINFO data */
unsigned int num_fh;
struct nfs_fh **fh_array;
- struct list_head *commit_buckets; /* Sort commits to ds */
+ struct nfs4_fl_commit_bucket *commit_buckets; /* Sort commits to ds */
int number_of_buckets;
};
diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c
index 8ae91908f5aa..a866bbd2890a 100644
--- a/fs/nfs/nfs4filelayoutdev.c
+++ b/fs/nfs/nfs4filelayoutdev.c
@@ -45,7 +45,7 @@
* - incremented when a device id maps a data server already in the cache.
* - decremented when deviceid is removed from the cache.
*/
-DEFINE_SPINLOCK(nfs4_ds_cache_lock);
+static DEFINE_SPINLOCK(nfs4_ds_cache_lock);
static LIST_HEAD(nfs4_data_server_cache);
/* Debug routines */
@@ -108,58 +108,40 @@ same_sockaddr(struct sockaddr *addr1, struct sockaddr *addr2)
return false;
}
-/*
- * Lookup DS by addresses. The first matching address returns true.
- * nfs4_ds_cache_lock is held
- */
-static struct nfs4_pnfs_ds *
-_data_server_lookup_locked(struct list_head *dsaddrs)
+static bool
+_same_data_server_addrs_locked(const struct list_head *dsaddrs1,
+ const struct list_head *dsaddrs2)
{
- struct nfs4_pnfs_ds *ds;
struct nfs4_pnfs_ds_addr *da1, *da2;
- list_for_each_entry(da1, dsaddrs, da_node) {
- list_for_each_entry(ds, &nfs4_data_server_cache, ds_node) {
- list_for_each_entry(da2, &ds->ds_addrs, da_node) {
- if (same_sockaddr(
- (struct sockaddr *)&da1->da_addr,
- (struct sockaddr *)&da2->da_addr))
- return ds;
- }
- }
+ /* step through both lists, comparing as we go */
+ for (da1 = list_first_entry(dsaddrs1, typeof(*da1), da_node),
+ da2 = list_first_entry(dsaddrs2, typeof(*da2), da_node);
+ da1 != NULL && da2 != NULL;
+ da1 = list_entry(da1->da_node.next, typeof(*da1), da_node),
+ da2 = list_entry(da2->da_node.next, typeof(*da2), da_node)) {
+ if (!same_sockaddr((struct sockaddr *)&da1->da_addr,
+ (struct sockaddr *)&da2->da_addr))
+ return false;
}
- return NULL;
+ if (da1 == NULL && da2 == NULL)
+ return true;
+
+ return false;
}
/*
- * Compare two lists of addresses.
+ * Lookup DS by addresses. nfs4_ds_cache_lock is held
*/
-static bool
-_data_server_match_all_addrs_locked(struct list_head *dsaddrs1,
- struct list_head *dsaddrs2)
+static struct nfs4_pnfs_ds *
+_data_server_lookup_locked(const struct list_head *dsaddrs)
{
- struct nfs4_pnfs_ds_addr *da1, *da2;
- size_t count1 = 0,
- count2 = 0;
-
- list_for_each_entry(da1, dsaddrs1, da_node)
- count1++;
-
- list_for_each_entry(da2, dsaddrs2, da_node) {
- bool found = false;
- count2++;
- list_for_each_entry(da1, dsaddrs1, da_node) {
- if (same_sockaddr((struct sockaddr *)&da1->da_addr,
- (struct sockaddr *)&da2->da_addr)) {
- found = true;
- break;
- }
- }
- if (!found)
- return false;
- }
+ struct nfs4_pnfs_ds *ds;
- return (count1 == count2);
+ list_for_each_entry(ds, &nfs4_data_server_cache, ds_node)
+ if (_same_data_server_addrs_locked(&ds->ds_addrs, dsaddrs))
+ return ds;
+ return NULL;
}
/*
@@ -356,11 +338,6 @@ nfs4_pnfs_ds_add(struct list_head *dsaddrs, gfp_t gfp_flags)
dprintk("%s add new data server %s\n", __func__,
ds->ds_remotestr);
} else {
- if (!_data_server_match_all_addrs_locked(&tmp_ds->ds_addrs,
- dsaddrs)) {
- dprintk("%s: multipath address mismatch: %s != %s",
- __func__, tmp_ds->ds_remotestr, remotestr);
- }
kfree(remotestr);
kfree(ds);
atomic_inc(&tmp_ds->ds_count);
@@ -378,7 +355,7 @@ out:
* Currently only supports ipv4, ipv6 and one multi-path address.
*/
static struct nfs4_pnfs_ds_addr *
-decode_ds_addr(struct xdr_stream *streamp, gfp_t gfp_flags)
+decode_ds_addr(struct net *net, struct xdr_stream *streamp, gfp_t gfp_flags)
{
struct nfs4_pnfs_ds_addr *da = NULL;
char *buf, *portstr;
@@ -457,7 +434,7 @@ decode_ds_addr(struct xdr_stream *streamp, gfp_t gfp_flags)
INIT_LIST_HEAD(&da->da_node);
- if (!rpc_pton(buf, portstr-buf, (struct sockaddr *)&da->da_addr,
+ if (!rpc_pton(net, buf, portstr-buf, (struct sockaddr *)&da->da_addr,
sizeof(da->da_addr))) {
dprintk("%s: error parsing address %s\n", __func__, buf);
goto out_free_da;
@@ -554,7 +531,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags)
cnt = be32_to_cpup(p);
dprintk("%s stripe count %d\n", __func__, cnt);
if (cnt > NFS4_PNFS_MAX_STRIPE_CNT) {
- printk(KERN_WARNING "%s: stripe count %d greater than "
+ printk(KERN_WARNING "NFS: %s: stripe count %d greater than "
"supported maximum %d\n", __func__,
cnt, NFS4_PNFS_MAX_STRIPE_CNT);
goto out_err_free_scratch;
@@ -585,7 +562,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags)
num = be32_to_cpup(p);
dprintk("%s ds_num %u\n", __func__, num);
if (num > NFS4_PNFS_MAX_MULTI_CNT) {
- printk(KERN_WARNING "%s: multipath count %d greater than "
+ printk(KERN_WARNING "NFS: %s: multipath count %d greater than "
"supported maximum %d\n", __func__,
num, NFS4_PNFS_MAX_MULTI_CNT);
goto out_err_free_stripe_indices;
@@ -593,7 +570,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags)
/* validate stripe indices are all < num */
if (max_stripe_index >= num) {
- printk(KERN_WARNING "%s: stripe index %u >= num ds %u\n",
+ printk(KERN_WARNING "NFS: %s: stripe index %u >= num ds %u\n",
__func__, max_stripe_index, num);
goto out_err_free_stripe_indices;
}
@@ -625,7 +602,8 @@ decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags)
mp_count = be32_to_cpup(p); /* multipath count */
for (j = 0; j < mp_count; j++) {
- da = decode_ds_addr(&stream, gfp_flags);
+ da = decode_ds_addr(NFS_SERVER(ino)->nfs_client->net,
+ &stream, gfp_flags);
if (da)
list_add_tail(&da->da_node, &dsaddrs);
}
@@ -686,7 +664,7 @@ decode_and_add_device(struct inode *inode, struct pnfs_device *dev, gfp_t gfp_fl
new = decode_device(inode, dev, gfp_flags);
if (!new) {
- printk(KERN_WARNING "%s: Could not decode or add device\n",
+ printk(KERN_WARNING "NFS: %s: Could not decode or add device\n",
__func__);
return NULL;
}
@@ -835,7 +813,7 @@ nfs4_fl_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx)
struct nfs4_pnfs_ds *ds = dsaddr->ds_list[ds_idx];
if (ds == NULL) {
- printk(KERN_ERR "%s: No data server for offset index %d\n",
+ printk(KERN_ERR "NFS: %s: No data server for offset index %d\n",
__func__, ds_idx);
return NULL;
}
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index bb80c49b6533..9c8eca315f43 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -94,13 +94,14 @@ static int nfs4_validate_fspath(struct dentry *dentry,
}
static size_t nfs_parse_server_name(char *string, size_t len,
- struct sockaddr *sa, size_t salen)
+ struct sockaddr *sa, size_t salen, struct nfs_server *server)
{
+ struct net *net = rpc_net_ns(server->client);
ssize_t ret;
- ret = rpc_pton(string, len, sa, salen);
+ ret = rpc_pton(net, string, len, sa, salen);
if (ret == 0) {
- ret = nfs_dns_resolve_name(string, len, sa, salen);
+ ret = nfs_dns_resolve_name(net, string, len, sa, salen);
if (ret < 0)
ret = 0;
}
@@ -137,7 +138,8 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata,
continue;
mountdata->addrlen = nfs_parse_server_name(buf->data, buf->len,
- mountdata->addr, addr_bufsize);
+ mountdata->addr, addr_bufsize,
+ NFS_SB(mountdata->sb));
if (mountdata->addrlen == 0)
continue;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index caf92d05c3a9..e809d2305ebf 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -72,18 +72,21 @@
#define NFS4_MAX_LOOP_ON_RECOVER (10)
+static unsigned short max_session_slots = NFS4_DEF_SLOT_TABLE_SIZE;
+
struct nfs4_opendata;
static int _nfs4_proc_open(struct nfs4_opendata *data);
static int _nfs4_recover_proc_open(struct nfs4_opendata *data);
static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *, struct nfs4_state *);
+static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr);
static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr);
static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
struct nfs_fattr *fattr, struct iattr *sattr,
struct nfs4_state *state);
#ifdef CONFIG_NFS_V4_1
-static int nfs41_test_stateid(struct nfs_server *, struct nfs4_state *);
-static int nfs41_free_stateid(struct nfs_server *, struct nfs4_state *);
+static int nfs41_test_stateid(struct nfs_server *, nfs4_stateid *);
+static int nfs41_free_stateid(struct nfs_server *, nfs4_stateid *);
#endif
/* Prevent leaks of NFSv4 errors into userland */
static int nfs4_map_errors(int err)
@@ -259,15 +262,28 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_state *state = exception->state;
+ struct inode *inode = exception->inode;
int ret = errorcode;
exception->retry = 0;
switch(errorcode) {
case 0:
return 0;
+ case -NFS4ERR_OPENMODE:
+ if (nfs_have_delegation(inode, FMODE_READ)) {
+ nfs_inode_return_delegation(inode);
+ exception->retry = 1;
+ return 0;
+ }
+ if (state == NULL)
+ break;
+ nfs4_schedule_stateid_recovery(server, state);
+ goto wait_on_recovery;
+ case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
- case -NFS4ERR_OPENMODE:
+ if (state != NULL)
+ nfs_remove_bad_delegation(state->inode);
if (state == NULL)
break;
nfs4_schedule_stateid_recovery(server, state);
@@ -360,16 +376,14 @@ static void renew_lease(const struct nfs_server *server, unsigned long timestamp
* When updating highest_used_slotid there may be "holes" in the bitmap
* so we need to scan down from highest_used_slotid to 0 looking for the now
* highest slotid in use.
- * If none found, highest_used_slotid is set to -1.
+ * If none found, highest_used_slotid is set to NFS4_NO_SLOT.
*
* Must be called while holding tbl->slot_tbl_lock
*/
static void
-nfs4_free_slot(struct nfs4_slot_table *tbl, u8 free_slotid)
+nfs4_free_slot(struct nfs4_slot_table *tbl, u32 slotid)
{
- int slotid = free_slotid;
-
- BUG_ON(slotid < 0 || slotid >= NFS4_MAX_SLOT_TABLE);
+ BUG_ON(slotid >= NFS4_MAX_SLOT_TABLE);
/* clear used bit in bitmap */
__clear_bit(slotid, tbl->used_slots);
@@ -379,10 +393,16 @@ nfs4_free_slot(struct nfs4_slot_table *tbl, u8 free_slotid)
if (slotid < tbl->max_slots)
tbl->highest_used_slotid = slotid;
else
- tbl->highest_used_slotid = -1;
+ tbl->highest_used_slotid = NFS4_NO_SLOT;
}
- dprintk("%s: free_slotid %u highest_used_slotid %d\n", __func__,
- free_slotid, tbl->highest_used_slotid);
+ dprintk("%s: slotid %u highest_used_slotid %d\n", __func__,
+ slotid, tbl->highest_used_slotid);
+}
+
+bool nfs4_set_task_privileged(struct rpc_task *task, void *dummy)
+{
+ rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
+ return true;
}
/*
@@ -390,16 +410,13 @@ nfs4_free_slot(struct nfs4_slot_table *tbl, u8 free_slotid)
*/
static void nfs4_check_drain_fc_complete(struct nfs4_session *ses)
{
- struct rpc_task *task;
-
if (!test_bit(NFS4_SESSION_DRAINING, &ses->session_state)) {
- task = rpc_wake_up_next(&ses->fc_slot_table.slot_tbl_waitq);
- if (task)
- rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
+ rpc_wake_up_first(&ses->fc_slot_table.slot_tbl_waitq,
+ nfs4_set_task_privileged, NULL);
return;
}
- if (ses->fc_slot_table.highest_used_slotid != -1)
+ if (ses->fc_slot_table.highest_used_slotid != NFS4_NO_SLOT)
return;
dprintk("%s COMPLETE: Session Fore Channel Drained\n", __func__);
@@ -412,7 +429,7 @@ static void nfs4_check_drain_fc_complete(struct nfs4_session *ses)
void nfs4_check_drain_bc_complete(struct nfs4_session *ses)
{
if (!test_bit(NFS4_SESSION_DRAINING, &ses->session_state) ||
- ses->bc_slot_table.highest_used_slotid != -1)
+ ses->bc_slot_table.highest_used_slotid != NFS4_NO_SLOT)
return;
dprintk("%s COMPLETE: Session Back Channel Drained\n", __func__);
complete(&ses->bc_slot_table.complete);
@@ -507,25 +524,25 @@ static int nfs4_sequence_done(struct rpc_task *task,
* nfs4_find_slot looks for an unset bit in the used_slots bitmap.
* If found, we mark the slot as used, update the highest_used_slotid,
* and respectively set up the sequence operation args.
- * The slot number is returned if found, or NFS4_MAX_SLOT_TABLE otherwise.
+ * The slot number is returned if found, or NFS4_NO_SLOT otherwise.
*
* Note: must be called with under the slot_tbl_lock.
*/
-static u8
+static u32
nfs4_find_slot(struct nfs4_slot_table *tbl)
{
- int slotid;
- u8 ret_id = NFS4_MAX_SLOT_TABLE;
- BUILD_BUG_ON((u8)NFS4_MAX_SLOT_TABLE != (int)NFS4_MAX_SLOT_TABLE);
+ u32 slotid;
+ u32 ret_id = NFS4_NO_SLOT;
- dprintk("--> %s used_slots=%04lx highest_used=%d max_slots=%d\n",
+ dprintk("--> %s used_slots=%04lx highest_used=%u max_slots=%u\n",
__func__, tbl->used_slots[0], tbl->highest_used_slotid,
tbl->max_slots);
slotid = find_first_zero_bit(tbl->used_slots, tbl->max_slots);
if (slotid >= tbl->max_slots)
goto out;
__set_bit(slotid, tbl->used_slots);
- if (slotid > tbl->highest_used_slotid)
+ if (slotid > tbl->highest_used_slotid ||
+ tbl->highest_used_slotid == NFS4_NO_SLOT)
tbl->highest_used_slotid = slotid;
ret_id = slotid;
out:
@@ -534,15 +551,25 @@ out:
return ret_id;
}
+static void nfs41_init_sequence(struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res, int cache_reply)
+{
+ args->sa_session = NULL;
+ args->sa_cache_this = 0;
+ if (cache_reply)
+ args->sa_cache_this = 1;
+ res->sr_session = NULL;
+ res->sr_slot = NULL;
+}
+
int nfs41_setup_sequence(struct nfs4_session *session,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
- int cache_reply,
struct rpc_task *task)
{
struct nfs4_slot *slot;
struct nfs4_slot_table *tbl;
- u8 slotid;
+ u32 slotid;
dprintk("--> %s\n", __func__);
/* slot already allocated? */
@@ -570,7 +597,7 @@ int nfs41_setup_sequence(struct nfs4_session *session,
}
slotid = nfs4_find_slot(tbl);
- if (slotid == NFS4_MAX_SLOT_TABLE) {
+ if (slotid == NFS4_NO_SLOT) {
rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
spin_unlock(&tbl->slot_tbl_lock);
dprintk("<-- %s: no free slots\n", __func__);
@@ -582,7 +609,6 @@ int nfs41_setup_sequence(struct nfs4_session *session,
slot = tbl->slots + slotid;
args->sa_session = session;
args->sa_slotid = slotid;
- args->sa_cache_this = cache_reply;
dprintk("<-- %s slotid=%d seqid=%d\n", __func__, slotid, slot->seq_nr);
@@ -602,24 +628,19 @@ EXPORT_SYMBOL_GPL(nfs41_setup_sequence);
int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
- int cache_reply,
struct rpc_task *task)
{
struct nfs4_session *session = nfs4_get_session(server);
int ret = 0;
- if (session == NULL) {
- args->sa_session = NULL;
- res->sr_session = NULL;
+ if (session == NULL)
goto out;
- }
dprintk("--> %s clp %p session %p sr_slot %td\n",
__func__, session->clp, session, res->sr_slot ?
res->sr_slot - session->fc_slot_table.slots : -1);
- ret = nfs41_setup_sequence(session, args, res, cache_reply,
- task);
+ ret = nfs41_setup_sequence(session, args, res, task);
out:
dprintk("<-- %s status=%d\n", __func__, ret);
return ret;
@@ -629,7 +650,6 @@ struct nfs41_call_sync_data {
const struct nfs_server *seq_server;
struct nfs4_sequence_args *seq_args;
struct nfs4_sequence_res *seq_res;
- int cache_reply;
};
static void nfs41_call_sync_prepare(struct rpc_task *task, void *calldata)
@@ -639,7 +659,7 @@ static void nfs41_call_sync_prepare(struct rpc_task *task, void *calldata)
dprintk("--> %s data->seq_server %p\n", __func__, data->seq_server);
if (nfs4_setup_sequence(data->seq_server, data->seq_args,
- data->seq_res, data->cache_reply, task))
+ data->seq_res, task))
return;
rpc_call_start(task);
}
@@ -657,12 +677,12 @@ static void nfs41_call_sync_done(struct rpc_task *task, void *calldata)
nfs41_sequence_done(task, data->seq_res);
}
-struct rpc_call_ops nfs41_call_sync_ops = {
+static const struct rpc_call_ops nfs41_call_sync_ops = {
.rpc_call_prepare = nfs41_call_sync_prepare,
.rpc_call_done = nfs41_call_sync_done,
};
-struct rpc_call_ops nfs41_call_priv_sync_ops = {
+static const struct rpc_call_ops nfs41_call_priv_sync_ops = {
.rpc_call_prepare = nfs41_call_priv_sync_prepare,
.rpc_call_done = nfs41_call_sync_done,
};
@@ -672,7 +692,6 @@ static int nfs4_call_sync_sequence(struct rpc_clnt *clnt,
struct rpc_message *msg,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
- int cache_reply,
int privileged)
{
int ret;
@@ -681,7 +700,6 @@ static int nfs4_call_sync_sequence(struct rpc_clnt *clnt,
.seq_server = server,
.seq_args = args,
.seq_res = res,
- .cache_reply = cache_reply,
};
struct rpc_task_setup task_setup = {
.rpc_client = clnt,
@@ -690,7 +708,6 @@ static int nfs4_call_sync_sequence(struct rpc_clnt *clnt,
.callback_data = &data
};
- res->sr_slot = NULL;
if (privileged)
task_setup.callback_ops = &nfs41_call_priv_sync_ops;
task = rpc_run_task(&task_setup);
@@ -710,10 +727,17 @@ int _nfs4_call_sync_session(struct rpc_clnt *clnt,
struct nfs4_sequence_res *res,
int cache_reply)
{
- return nfs4_call_sync_sequence(clnt, server, msg, args, res, cache_reply, 0);
+ nfs41_init_sequence(args, res, cache_reply);
+ return nfs4_call_sync_sequence(clnt, server, msg, args, res, 0);
}
#else
+static inline
+void nfs41_init_sequence(struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res, int cache_reply)
+{
+}
+
static int nfs4_sequence_done(struct rpc_task *task,
struct nfs4_sequence_res *res)
{
@@ -728,7 +752,7 @@ int _nfs4_call_sync(struct rpc_clnt *clnt,
struct nfs4_sequence_res *res,
int cache_reply)
{
- args->sa_session = res->sr_session = NULL;
+ nfs41_init_sequence(args, res, cache_reply);
return rpc_call_sync(clnt, msg, 0);
}
@@ -815,20 +839,22 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
p->o_arg.open_flags = flags;
p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE);
p->o_arg.clientid = server->nfs_client->cl_clientid;
- p->o_arg.id = sp->so_owner_id.id;
+ p->o_arg.id = sp->so_seqid.owner_id;
p->o_arg.name = &dentry->d_name;
p->o_arg.server = server;
p->o_arg.bitmask = server->attr_bitmask;
p->o_arg.dir_bitmask = server->cache_consistency_bitmask;
p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
- if (flags & O_CREAT) {
- u32 *s;
+ if (attrs != NULL && attrs->ia_valid != 0) {
+ __be32 verf[2];
p->o_arg.u.attrs = &p->attrs;
memcpy(&p->attrs, attrs, sizeof(p->attrs));
- s = (u32 *) p->o_arg.u.verifier.data;
- s[0] = jiffies;
- s[1] = current->pid;
+
+ verf[0] = jiffies;
+ verf[1] = current->pid;
+ memcpy(p->o_arg.u.verifier.data, verf,
+ sizeof(p->o_arg.u.verifier.data));
}
p->c_arg.fh = &p->o_res.fh;
p->c_arg.stateid = &p->o_res.stateid;
@@ -878,7 +904,7 @@ static int can_open_cached(struct nfs4_state *state, fmode_t mode, int open_mode
{
int ret = 0;
- if (open_mode & O_EXCL)
+ if (open_mode & (O_EXCL|O_TRUNC))
goto out;
switch (mode & (FMODE_READ|FMODE_WRITE)) {
case FMODE_READ:
@@ -927,8 +953,8 @@ static void update_open_stateflags(struct nfs4_state *state, fmode_t fmode)
static void nfs_set_open_stateid_locked(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode)
{
if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0)
- memcpy(state->stateid.data, stateid->data, sizeof(state->stateid.data));
- memcpy(state->open_stateid.data, stateid->data, sizeof(state->open_stateid.data));
+ nfs4_stateid_copy(&state->stateid, stateid);
+ nfs4_stateid_copy(&state->open_stateid, stateid);
switch (fmode) {
case FMODE_READ:
set_bit(NFS_O_RDONLY_STATE, &state->flags);
@@ -956,7 +982,7 @@ static void __update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_s
*/
write_seqlock(&state->seqlock);
if (deleg_stateid != NULL) {
- memcpy(state->stateid.data, deleg_stateid->data, sizeof(state->stateid.data));
+ nfs4_stateid_copy(&state->stateid, deleg_stateid);
set_bit(NFS_DELEGATED_STATE, &state->flags);
}
if (open_stateid != NULL)
@@ -987,7 +1013,7 @@ static int update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_stat
if (delegation == NULL)
delegation = &deleg_cur->stateid;
- else if (memcmp(deleg_cur->stateid.data, delegation->data, NFS4_STATEID_SIZE) != 0)
+ else if (!nfs4_stateid_match(&deleg_cur->stateid, delegation))
goto no_delegation_unlock;
nfs_mark_delegation_referenced(deleg_cur);
@@ -1026,7 +1052,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
struct nfs4_state *state = opendata->state;
struct nfs_inode *nfsi = NFS_I(state->inode);
struct nfs_delegation *delegation;
- int open_mode = opendata->o_arg.open_flags & O_EXCL;
+ int open_mode = opendata->o_arg.open_flags & (O_EXCL|O_TRUNC);
fmode_t fmode = opendata->o_arg.fmode;
nfs4_stateid stateid;
int ret = -EAGAIN;
@@ -1048,7 +1074,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
break;
}
/* Save the delegation */
- memcpy(stateid.data, delegation->stateid.data, sizeof(stateid.data));
+ nfs4_stateid_copy(&stateid, &delegation->stateid);
rcu_read_unlock();
ret = nfs_may_open(state->inode, state->owner->so_cred, open_mode);
if (ret != 0)
@@ -1090,6 +1116,7 @@ static struct nfs4_state *nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data
if (state == NULL)
goto err_put_inode;
if (data->o_res.delegation_type != 0) {
+ struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
int delegation_flags = 0;
rcu_read_lock();
@@ -1101,7 +1128,7 @@ static struct nfs4_state *nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data
pr_err_ratelimited("NFS: Broken NFSv4 server %s is "
"returning a delegation for "
"OPEN(CLAIM_DELEGATE_CUR)\n",
- NFS_CLIENT(inode)->cl_server);
+ clp->cl_hostname);
} else if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
nfs_inode_set_delegation(state->inode,
data->owner->so_cred,
@@ -1210,10 +1237,10 @@ static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state *
* Check if we need to update the current stateid.
*/
if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0 &&
- memcmp(state->stateid.data, state->open_stateid.data, sizeof(state->stateid.data)) != 0) {
+ !nfs4_stateid_match(&state->stateid, &state->open_stateid)) {
write_seqlock(&state->seqlock);
if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0)
- memcpy(state->stateid.data, state->open_stateid.data, sizeof(state->stateid.data));
+ nfs4_stateid_copy(&state->stateid, &state->open_stateid);
write_sequnlock(&state->seqlock);
}
return 0;
@@ -1282,8 +1309,7 @@ static int _nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs
if (IS_ERR(opendata))
return PTR_ERR(opendata);
opendata->o_arg.claim = NFS4_OPEN_CLAIM_DELEGATE_CUR;
- memcpy(opendata->o_arg.u.delegation.data, stateid->data,
- sizeof(opendata->o_arg.u.delegation.data));
+ nfs4_stateid_copy(&opendata->o_arg.u.delegation, stateid);
ret = nfs4_open_recover(opendata, state);
nfs4_opendata_put(opendata);
return ret;
@@ -1319,8 +1345,11 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
* The show must go on: exit, but mark the
* stateid as needing recovery.
*/
+ case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
+ nfs_inode_find_state_and_recover(state->inode,
+ stateid);
nfs4_schedule_stateid_recovery(server, state);
case -EKEYEXPIRED:
/*
@@ -1345,8 +1374,7 @@ static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
data->rpc_status = task->tk_status;
if (data->rpc_status == 0) {
- memcpy(data->o_res.stateid.data, data->c_res.stateid.data,
- sizeof(data->o_res.stateid.data));
+ nfs4_stateid_copy(&data->o_res.stateid, &data->c_res.stateid);
nfs_confirm_seqid(&data->owner->so_seqid, 0);
renew_lease(data->o_res.server, data->timestamp);
data->rpc_done = 1;
@@ -1440,7 +1468,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
rcu_read_unlock();
}
/* Update sequence id. */
- data->o_arg.id = sp->so_owner_id.id;
+ data->o_arg.id = sp->so_seqid.owner_id;
data->o_arg.clientid = sp->so_server->nfs_client->cl_clientid;
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
@@ -1449,7 +1477,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
data->timestamp = jiffies;
if (nfs4_setup_sequence(data->o_arg.server,
&data->o_arg.seq_args,
- &data->o_res.seq_res, 1, task))
+ &data->o_res.seq_res, task))
return;
rpc_call_start(task);
return;
@@ -1551,6 +1579,7 @@ static int nfs4_run_open_task(struct nfs4_opendata *data, int isrecover)
};
int status;
+ nfs41_init_sequence(&o_arg->seq_args, &o_res->seq_res, 1);
kref_get(&data->kref);
data->rpc_done = 0;
data->rpc_status = 0;
@@ -1712,15 +1741,32 @@ static int nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *sta
}
#if defined(CONFIG_NFS_V4_1)
-static int nfs41_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *state)
+static int nfs41_check_expired_stateid(struct nfs4_state *state, nfs4_stateid *stateid, unsigned int flags)
{
- int status;
+ int status = NFS_OK;
struct nfs_server *server = NFS_SERVER(state->inode);
- status = nfs41_test_stateid(server, state);
- if (status == NFS_OK)
- return 0;
- nfs41_free_stateid(server, state);
+ if (state->flags & flags) {
+ status = nfs41_test_stateid(server, stateid);
+ if (status != NFS_OK) {
+ nfs41_free_stateid(server, stateid);
+ state->flags &= ~flags;
+ }
+ }
+ return status;
+}
+
+static int nfs41_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *state)
+{
+ int deleg_status, open_status;
+ int deleg_flags = 1 << NFS_DELEGATED_STATE;
+ int open_flags = (1 << NFS_O_RDONLY_STATE) | (1 << NFS_O_WRONLY_STATE) | (1 << NFS_O_RDWR_STATE);
+
+ deleg_status = nfs41_check_expired_stateid(state, &state->stateid, deleg_flags);
+ open_status = nfs41_check_expired_stateid(state, &state->open_stateid, open_flags);
+
+ if ((deleg_status == NFS_OK) && (open_status == NFS_OK))
+ return NFS_OK;
return nfs4_open_expired(sp, state);
}
#endif
@@ -1754,7 +1800,8 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, fmode_t fmode
/* Protect against reboot recovery conflicts */
status = -ENOMEM;
- if (!(sp = nfs4_get_state_owner(server, cred))) {
+ sp = nfs4_get_state_owner(server, cred, GFP_KERNEL);
+ if (sp == NULL) {
dprintk("nfs4_do_open: nfs4_get_state_owner failed!\n");
goto out_err;
}
@@ -1829,7 +1876,7 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry,
* the user though...
*/
if (status == -NFS4ERR_BAD_SEQID) {
- printk(KERN_WARNING "NFS: v4 server %s "
+ pr_warn_ratelimited("NFS: v4 server %s "
" returned a bad sequence-id error!\n",
NFS_SERVER(dir)->nfs_client->cl_hostname);
exception.retry = 1;
@@ -1882,12 +1929,14 @@ static int _nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
nfs_fattr_init(fattr);
- if (nfs4_copy_delegation_stateid(&arg.stateid, inode)) {
+ if (state != NULL) {
+ nfs4_select_rw_stateid(&arg.stateid, state, FMODE_WRITE,
+ current->files, current->tgid);
+ } else if (nfs4_copy_delegation_stateid(&arg.stateid, inode,
+ FMODE_WRITE)) {
/* Use that stateid */
- } else if (state != NULL) {
- nfs4_copy_stateid(&arg.stateid, state, current->files, current->tgid);
} else
- memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid));
+ nfs4_stateid_copy(&arg.stateid, &zero_stateid);
status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
if (status == 0 && state != NULL)
@@ -1900,7 +1949,10 @@ static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
struct nfs4_state *state)
{
struct nfs_server *server = NFS_SERVER(inode);
- struct nfs4_exception exception = { };
+ struct nfs4_exception exception = {
+ .state = state,
+ .inode = inode,
+ };
int err;
do {
err = nfs4_handle_exception(server,
@@ -1954,6 +2006,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
struct nfs4_state *state = calldata->state;
struct nfs_server *server = NFS_SERVER(calldata->inode);
+ dprintk("%s: begin!\n", __func__);
if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
/* hmm. we are done with the inode, and in the process of freeing
@@ -1981,6 +2034,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
}
nfs_release_seqid(calldata->arg.seqid);
nfs_refresh_inode(calldata->inode, calldata->res.fattr);
+ dprintk("%s: done, ret = %d!\n", __func__, task->tk_status);
}
static void nfs4_close_prepare(struct rpc_task *task, void *data)
@@ -1989,6 +2043,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
struct nfs4_state *state = calldata->state;
int call_close = 0;
+ dprintk("%s: begin!\n", __func__);
if (nfs_wait_on_sequence(calldata->arg.seqid, task) != 0)
return;
@@ -2013,7 +2068,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
if (!call_close) {
/* Note: exit _without_ calling nfs4_close_done */
task->tk_action = NULL;
- return;
+ goto out;
}
if (calldata->arg.fmode == 0) {
@@ -2022,17 +2077,20 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
pnfs_roc_drain(calldata->inode, &calldata->roc_barrier)) {
rpc_sleep_on(&NFS_SERVER(calldata->inode)->roc_rpcwaitq,
task, NULL);
- return;
+ goto out;
}
}
nfs_fattr_init(calldata->res.fattr);
calldata->timestamp = jiffies;
if (nfs4_setup_sequence(NFS_SERVER(calldata->inode),
- &calldata->arg.seq_args, &calldata->res.seq_res,
- 1, task))
- return;
+ &calldata->arg.seq_args,
+ &calldata->res.seq_res,
+ task))
+ goto out;
rpc_call_start(task);
+out:
+ dprintk("%s: done!\n", __func__);
}
static const struct rpc_call_ops nfs4_close_ops = {
@@ -2074,6 +2132,7 @@ int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait, bool roc)
calldata = kzalloc(sizeof(*calldata), gfp_mask);
if (calldata == NULL)
goto out;
+ nfs41_init_sequence(&calldata->arg.seq_args, &calldata->res.seq_res, 1);
calldata->inode = state->inode;
calldata->state = state;
calldata->arg.fh = NFS_FH(state->inode);
@@ -2182,6 +2241,7 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
server->cache_consistency_bitmask[0] &= FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE;
server->cache_consistency_bitmask[1] &= FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
server->acl_bitmask = res.acl_bitmask;
+ server->fh_expire_type = res.fh_expire_type;
}
return status;
@@ -2303,7 +2363,6 @@ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
return nfs4_map_errors(status);
}
-static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr);
/*
* Get locations and (maybe) other attributes of a referral.
* Note that we'll actually follow the referral later when
@@ -2420,6 +2479,10 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
}
}
+ /* Deal with open(O_TRUNC) */
+ if (sattr->ia_valid & ATTR_OPEN)
+ sattr->ia_valid &= ~(ATTR_MTIME|ATTR_CTIME|ATTR_OPEN);
+
status = nfs4_do_setattr(inode, cred, fattr, sattr, state);
if (status == 0)
nfs_setattr_update_inode(inode, sattr);
@@ -2494,7 +2557,7 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry
struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_accessargs args = {
.fh = NFS_FH(inode),
- .bitmask = server->attr_bitmask,
+ .bitmask = server->cache_consistency_bitmask,
};
struct nfs4_accessres res = {
.server = server,
@@ -2712,8 +2775,18 @@ static void nfs4_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
args->bitmask = server->cache_consistency_bitmask;
res->server = server;
- res->seq_res.sr_slot = NULL;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE];
+ nfs41_init_sequence(&args->seq_args, &res->seq_res, 1);
+}
+
+static void nfs4_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
+{
+ if (nfs4_setup_sequence(NFS_SERVER(data->dir),
+ &data->args.seq_args,
+ &data->res.seq_res,
+ task))
+ return;
+ rpc_call_start(task);
}
static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
@@ -2738,6 +2811,17 @@ static void nfs4_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RENAME];
arg->bitmask = server->attr_bitmask;
res->server = server;
+ nfs41_init_sequence(&arg->seq_args, &res->seq_res, 1);
+}
+
+static void nfs4_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
+{
+ if (nfs4_setup_sequence(NFS_SERVER(data->old_dir),
+ &data->args.seq_args,
+ &data->res.seq_res,
+ task))
+ return;
+ rpc_call_start(task);
}
static int nfs4_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
@@ -3232,6 +3316,17 @@ static void nfs4_proc_read_setup(struct nfs_read_data *data, struct rpc_message
data->timestamp = jiffies;
data->read_done_cb = nfs4_read_done_cb;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READ];
+ nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 0);
+}
+
+static void nfs4_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_read_data *data)
+{
+ if (nfs4_setup_sequence(NFS_SERVER(data->inode),
+ &data->args.seq_args,
+ &data->res.seq_res,
+ task))
+ return;
+ rpc_call_start(task);
}
/* Reset the the nfs_read_data to send the read to the MDS. */
@@ -3305,6 +3400,17 @@ static void nfs4_proc_write_setup(struct nfs_write_data *data, struct rpc_messag
data->timestamp = jiffies;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_WRITE];
+ nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
+}
+
+static void nfs4_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_write_data *data)
+{
+ if (nfs4_setup_sequence(NFS_SERVER(data->inode),
+ &data->args.seq_args,
+ &data->res.seq_res,
+ task))
+ return;
+ rpc_call_start(task);
}
static int nfs4_commit_done_cb(struct rpc_task *task, struct nfs_write_data *data)
@@ -3339,6 +3445,7 @@ static void nfs4_proc_commit_setup(struct nfs_write_data *data, struct rpc_messa
data->write_done_cb = nfs4_commit_done_cb;
data->res.server = server;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COMMIT];
+ nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
}
struct nfs4_renewdata {
@@ -3714,8 +3821,11 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
if (task->tk_status >= 0)
return 0;
switch(task->tk_status) {
+ case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
+ if (state != NULL)
+ nfs_remove_bad_delegation(state->inode);
case -NFS4ERR_OPENMODE:
if (state == NULL)
break;
@@ -3764,6 +3874,16 @@ wait_on_recovery:
return -EAGAIN;
}
+static void nfs4_construct_boot_verifier(struct nfs_client *clp,
+ nfs4_verifier *bootverf)
+{
+ __be32 verf[2];
+
+ verf[0] = htonl((u32)clp->cl_boot_time.tv_sec);
+ verf[1] = htonl((u32)clp->cl_boot_time.tv_nsec);
+ memcpy(bootverf->data, verf, sizeof(bootverf->data));
+}
+
int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
unsigned short port, struct rpc_cred *cred,
struct nfs4_setclientid_res *res)
@@ -3780,15 +3900,13 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
.rpc_resp = res,
.rpc_cred = cred,
};
- __be32 *p;
int loop = 0;
int status;
- p = (__be32*)sc_verifier.data;
- *p++ = htonl((u32)clp->cl_boot_time.tv_sec);
- *p = htonl((u32)clp->cl_boot_time.tv_nsec);
+ nfs4_construct_boot_verifier(clp, &sc_verifier);
for(;;) {
+ rcu_read_lock();
setclientid.sc_name_len = scnprintf(setclientid.sc_name,
sizeof(setclientid.sc_name), "%s/%s %s %s %u",
clp->cl_ipaddr,
@@ -3805,6 +3923,7 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
setclientid.sc_uaddr_len = scnprintf(setclientid.sc_uaddr,
sizeof(setclientid.sc_uaddr), "%s.%u.%u",
clp->cl_ipaddr, port >> 8, port & 255);
+ rcu_read_unlock();
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (status != -NFS4ERR_CLID_INUSE)
@@ -3891,7 +4010,7 @@ static void nfs4_delegreturn_prepare(struct rpc_task *task, void *data)
if (nfs4_setup_sequence(d_data->res.server,
&d_data->args.seq_args,
- &d_data->res.seq_res, 1, task))
+ &d_data->res.seq_res, task))
return;
rpc_call_start(task);
}
@@ -3925,11 +4044,12 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
data = kzalloc(sizeof(*data), GFP_NOFS);
if (data == NULL)
return -ENOMEM;
+ nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
data->args.fhandle = &data->fh;
data->args.stateid = &data->stateid;
data->args.bitmask = server->attr_bitmask;
nfs_copy_fh(&data->fh, NFS_FH(inode));
- memcpy(&data->stateid, stateid, sizeof(data->stateid));
+ nfs4_stateid_copy(&data->stateid, stateid);
data->res.fattr = &data->fattr;
data->res.server = server;
nfs_fattr_init(data->res.fattr);
@@ -4016,7 +4136,7 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
if (status != 0)
goto out;
lsp = request->fl_u.nfs4_fl.owner;
- arg.lock_owner.id = lsp->ls_id.id;
+ arg.lock_owner.id = lsp->ls_seqid.owner_id;
arg.lock_owner.s_dev = server->s_dev;
status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
switch (status) {
@@ -4112,9 +4232,8 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
return;
switch (task->tk_status) {
case 0:
- memcpy(calldata->lsp->ls_stateid.data,
- calldata->res.stateid.data,
- sizeof(calldata->lsp->ls_stateid.data));
+ nfs4_stateid_copy(&calldata->lsp->ls_stateid,
+ &calldata->res.stateid);
renew_lease(calldata->server, calldata->timestamp);
break;
case -NFS4ERR_BAD_STATEID:
@@ -4142,7 +4261,7 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data)
calldata->timestamp = jiffies;
if (nfs4_setup_sequence(calldata->server,
&calldata->arg.seq_args,
- &calldata->res.seq_res, 1, task))
+ &calldata->res.seq_res, task))
return;
rpc_call_start(task);
}
@@ -4182,6 +4301,7 @@ static struct rpc_task *nfs4_do_unlck(struct file_lock *fl,
return ERR_PTR(-ENOMEM);
}
+ nfs41_init_sequence(&data->arg.seq_args, &data->res.seq_res, 1);
msg.rpc_argp = &data->arg;
msg.rpc_resp = &data->res;
task_setup_data.callback_data = data;
@@ -4261,7 +4381,7 @@ static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl,
goto out_free_seqid;
p->arg.lock_stateid = &lsp->ls_stateid;
p->arg.lock_owner.clientid = server->nfs_client->cl_clientid;
- p->arg.lock_owner.id = lsp->ls_id.id;
+ p->arg.lock_owner.id = lsp->ls_seqid.owner_id;
p->arg.lock_owner.s_dev = server->s_dev;
p->res.lock_seqid = p->arg.lock_seqid;
p->lsp = lsp;
@@ -4297,7 +4417,7 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
data->timestamp = jiffies;
if (nfs4_setup_sequence(data->server,
&data->arg.seq_args,
- &data->res.seq_res, 1, task))
+ &data->res.seq_res, task))
return;
rpc_call_start(task);
dprintk("%s: done!, ret = %d\n", __func__, data->rpc_status);
@@ -4326,8 +4446,7 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata)
goto out;
}
if (data->rpc_status == 0) {
- memcpy(data->lsp->ls_stateid.data, data->res.stateid.data,
- sizeof(data->lsp->ls_stateid.data));
+ nfs4_stateid_copy(&data->lsp->ls_stateid, &data->res.stateid);
data->lsp->ls_flags |= NFS_LOCK_INITIALIZED;
renew_lease(NFS_SERVER(data->ctx->dentry->d_inode), data->timestamp);
}
@@ -4415,6 +4534,7 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f
data->arg.reclaim = NFS_LOCK_RECLAIM;
task_setup_data.callback_ops = &nfs4_recover_lock_ops;
}
+ nfs41_init_sequence(&data->arg.seq_args, &data->res.seq_res, 1);
msg.rpc_argp = &data->arg;
msg.rpc_resp = &data->res;
task_setup_data.callback_data = data;
@@ -4479,15 +4599,34 @@ out:
}
#if defined(CONFIG_NFS_V4_1)
-static int nfs41_lock_expired(struct nfs4_state *state, struct file_lock *request)
+static int nfs41_check_expired_locks(struct nfs4_state *state)
{
- int status;
+ int status, ret = NFS_OK;
+ struct nfs4_lock_state *lsp;
struct nfs_server *server = NFS_SERVER(state->inode);
- status = nfs41_test_stateid(server, state);
+ list_for_each_entry(lsp, &state->lock_states, ls_locks) {
+ if (lsp->ls_flags & NFS_LOCK_INITIALIZED) {
+ status = nfs41_test_stateid(server, &lsp->ls_stateid);
+ if (status != NFS_OK) {
+ nfs41_free_stateid(server, &lsp->ls_stateid);
+ lsp->ls_flags &= ~NFS_LOCK_INITIALIZED;
+ ret = status;
+ }
+ }
+ };
+
+ return ret;
+}
+
+static int nfs41_lock_expired(struct nfs4_state *state, struct file_lock *request)
+{
+ int status = NFS_OK;
+
+ if (test_bit(LK_STATE_IN_USE, &state->flags))
+ status = nfs41_check_expired_locks(state);
if (status == NFS_OK)
- return 0;
- nfs41_free_stateid(server, state);
+ return status;
return nfs4_lock_expired(state, request);
}
#endif
@@ -4523,7 +4662,8 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock
/* Note: we always want to sleep here! */
request->fl_flags = fl_flags | FL_SLEEP;
if (do_vfs_lock(request->fl_file, request) < 0)
- printk(KERN_WARNING "%s: VFS is out of sync with lock manager!\n", __func__);
+ printk(KERN_WARNING "NFS: %s: VFS is out of sync with lock "
+ "manager!\n", __func__);
out_unlock:
up_read(&nfsi->rwsem);
out:
@@ -4533,7 +4673,9 @@ out:
static int nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock *request)
{
- struct nfs4_exception exception = { };
+ struct nfs4_exception exception = {
+ .state = state,
+ };
int err;
do {
@@ -4603,8 +4745,8 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);
switch (err) {
default:
- printk(KERN_ERR "%s: unhandled error %d.\n",
- __func__, err);
+ printk(KERN_ERR "NFS: %s: unhandled error "
+ "%d.\n", __func__, err);
case 0:
case -ESTALE:
goto out;
@@ -4626,6 +4768,7 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
* The show must go on: exit, but mark the
* stateid as needing recovery.
*/
+ case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_OPENMODE:
@@ -4655,33 +4798,44 @@ out:
return err;
}
+struct nfs_release_lockowner_data {
+ struct nfs4_lock_state *lsp;
+ struct nfs_server *server;
+ struct nfs_release_lockowner_args args;
+};
+
static void nfs4_release_lockowner_release(void *calldata)
{
+ struct nfs_release_lockowner_data *data = calldata;
+ nfs4_free_lock_state(data->server, data->lsp);
kfree(calldata);
}
-const struct rpc_call_ops nfs4_release_lockowner_ops = {
+static const struct rpc_call_ops nfs4_release_lockowner_ops = {
.rpc_release = nfs4_release_lockowner_release,
};
-void nfs4_release_lockowner(const struct nfs4_lock_state *lsp)
+int nfs4_release_lockowner(struct nfs4_lock_state *lsp)
{
struct nfs_server *server = lsp->ls_state->owner->so_server;
- struct nfs_release_lockowner_args *args;
+ struct nfs_release_lockowner_data *data;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RELEASE_LOCKOWNER],
};
if (server->nfs_client->cl_mvops->minor_version != 0)
- return;
- args = kmalloc(sizeof(*args), GFP_NOFS);
- if (!args)
- return;
- args->lock_owner.clientid = server->nfs_client->cl_clientid;
- args->lock_owner.id = lsp->ls_id.id;
- args->lock_owner.s_dev = server->s_dev;
- msg.rpc_argp = args;
- rpc_call_async(server->client, &msg, 0, &nfs4_release_lockowner_ops, args);
+ return -EINVAL;
+ data = kmalloc(sizeof(*data), GFP_NOFS);
+ if (!data)
+ return -ENOMEM;
+ data->lsp = lsp;
+ data->server = server;
+ data->args.lock_owner.clientid = server->nfs_client->cl_clientid;
+ data->args.lock_owner.id = lsp->ls_seqid.owner_id;
+ data->args.lock_owner.s_dev = server->s_dev;
+ msg.rpc_argp = &data->args;
+ rpc_call_async(server->client, &msg, 0, &nfs4_release_lockowner_ops, data);
+ return 0;
}
#define XATTR_NAME_NFSV4_ACL "system.nfs4_acl"
@@ -4727,11 +4881,11 @@ static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr)
if (!(((fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) ||
(fattr->valid & NFS_ATTR_FATTR_FILEID)) &&
(fattr->valid & NFS_ATTR_FATTR_FSID) &&
- (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL)))
+ (fattr->valid & NFS_ATTR_FATTR_V4_LOCATIONS)))
return;
fattr->valid |= NFS_ATTR_FATTR_TYPE | NFS_ATTR_FATTR_MODE |
- NFS_ATTR_FATTR_NLINK;
+ NFS_ATTR_FATTR_NLINK | NFS_ATTR_FATTR_V4_REFERRAL;
fattr->mode = S_IFDIR | S_IRUGO | S_IXUGO;
fattr->nlink = 2;
}
@@ -4798,7 +4952,8 @@ static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct
return status;
}
-int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct nfs4_secinfo_flavors *flavors)
+static int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name,
+ struct nfs4_secinfo_flavors *flavors)
{
struct nfs4_exception exception = { };
int err;
@@ -4852,6 +5007,7 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
{
nfs4_verifier verifier;
struct nfs41_exchange_id_args args = {
+ .verifier = &verifier,
.client = clp,
.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER,
};
@@ -4865,15 +5021,11 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
.rpc_resp = &res,
.rpc_cred = cred,
};
- __be32 *p;
dprintk("--> %s\n", __func__);
BUG_ON(clp == NULL);
- p = (u32 *)verifier.data;
- *p++ = htonl((u32)clp->cl_boot_time.tv_sec);
- *p = htonl((u32)clp->cl_boot_time.tv_nsec);
- args.verifier = &verifier;
+ nfs4_construct_boot_verifier(clp, &verifier);
args.id_len = scnprintf(args.id, sizeof(args.id),
"%s/%s.%s/%u",
@@ -4888,11 +5040,24 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
goto out;
}
+ res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_KERNEL);
+ if (unlikely(!res.impl_id)) {
+ status = -ENOMEM;
+ goto out_server_scope;
+ }
+
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (!status)
status = nfs4_check_cl_exchange_flags(clp->cl_exchange_flags);
if (!status) {
+ /* use the most recent implementation id */
+ kfree(clp->impl_id);
+ clp->impl_id = res.impl_id;
+ } else
+ kfree(res.impl_id);
+
+ if (!status) {
if (clp->server_scope &&
!nfs41_same_server_scope(clp->server_scope,
res.server_scope)) {
@@ -4908,8 +5073,16 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
goto out;
}
}
+
+out_server_scope:
kfree(res.server_scope);
out:
+ if (clp->impl_id)
+ dprintk("%s: Server Implementation ID: "
+ "domain: %s, name: %s, date: %llu,%u\n",
+ __func__, clp->impl_id->domain, clp->impl_id->name,
+ clp->impl_id->date.seconds,
+ clp->impl_id->date.nseconds);
dprintk("<-- %s status= %d\n", __func__, status);
return status;
}
@@ -4933,7 +5106,7 @@ static void nfs4_get_lease_time_prepare(struct rpc_task *task,
since we're invoked within one */
ret = nfs41_setup_sequence(data->clp->cl_session,
&data->args->la_seq_args,
- &data->res->lr_seq_res, 0, task);
+ &data->res->lr_seq_res, task);
BUG_ON(ret == -EAGAIN);
rpc_call_start(task);
@@ -4966,7 +5139,7 @@ static void nfs4_get_lease_time_done(struct rpc_task *task, void *calldata)
dprintk("<-- %s\n", __func__);
}
-struct rpc_call_ops nfs4_get_lease_time_ops = {
+static const struct rpc_call_ops nfs4_get_lease_time_ops = {
.rpc_call_prepare = nfs4_get_lease_time_prepare,
.rpc_call_done = nfs4_get_lease_time_done,
};
@@ -4997,6 +5170,7 @@ int nfs4_proc_get_lease_time(struct nfs_client *clp, struct nfs_fsinfo *fsinfo)
};
int status;
+ nfs41_init_sequence(&args.la_seq_args, &res.lr_seq_res, 0);
dprintk("--> %s\n", __func__);
task = rpc_run_task(&task_setup);
@@ -5113,13 +5287,13 @@ struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp)
return NULL;
tbl = &session->fc_slot_table;
- tbl->highest_used_slotid = -1;
+ tbl->highest_used_slotid = NFS4_NO_SLOT;
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_priority_wait_queue(&tbl->slot_tbl_waitq, "ForeChannel Slot table");
init_completion(&tbl->complete);
tbl = &session->bc_slot_table;
- tbl->highest_used_slotid = -1;
+ tbl->highest_used_slotid = NFS4_NO_SLOT;
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_wait_queue(&tbl->slot_tbl_waitq, "BackChannel Slot table");
init_completion(&tbl->complete);
@@ -5132,11 +5306,16 @@ struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp)
void nfs4_destroy_session(struct nfs4_session *session)
{
+ struct rpc_xprt *xprt;
+
nfs4_proc_destroy_session(session);
+
+ rcu_read_lock();
+ xprt = rcu_dereference(session->clp->cl_rpcclient->cl_xprt);
+ rcu_read_unlock();
dprintk("%s Destroy backchannel for xprt %p\n",
- __func__, session->clp->cl_rpcclient->cl_xprt);
- xprt_destroy_backchannel(session->clp->cl_rpcclient->cl_xprt,
- NFS41_BC_MIN_CALLBACKS);
+ __func__, xprt);
+ xprt_destroy_backchannel(xprt, NFS41_BC_MIN_CALLBACKS);
nfs4_destroy_slot_tables(session);
kfree(session);
}
@@ -5164,7 +5343,7 @@ static void nfs4_init_channel_attrs(struct nfs41_create_session_args *args)
args->fc_attrs.max_rqst_sz = mxrqst_sz;
args->fc_attrs.max_resp_sz = mxresp_sz;
args->fc_attrs.max_ops = NFS4_MAX_OPS;
- args->fc_attrs.max_reqs = session->clp->cl_rpcclient->cl_xprt->max_reqs;
+ args->fc_attrs.max_reqs = max_session_slots;
dprintk("%s: Fore Channel : max_rqst_sz=%u max_resp_sz=%u "
"max_ops=%u max_reqs=%u\n",
@@ -5204,6 +5383,8 @@ static int nfs4_verify_fore_channel_attrs(struct nfs41_create_session_args *args
return -EINVAL;
if (rcvd->max_reqs == 0)
return -EINVAL;
+ if (rcvd->max_reqs > NFS4_MAX_SLOT_TABLE)
+ rcvd->max_reqs = NFS4_MAX_SLOT_TABLE;
return 0;
}
@@ -5219,9 +5400,9 @@ static int nfs4_verify_back_channel_attrs(struct nfs41_create_session_args *args
if (rcvd->max_resp_sz_cached > sent->max_resp_sz_cached)
return -EINVAL;
/* These would render the backchannel useless: */
- if (rcvd->max_ops == 0)
+ if (rcvd->max_ops != sent->max_ops)
return -EINVAL;
- if (rcvd->max_reqs == 0)
+ if (rcvd->max_reqs != sent->max_reqs)
return -EINVAL;
return 0;
}
@@ -5324,7 +5505,7 @@ int nfs4_proc_destroy_session(struct nfs4_session *session)
if (status)
printk(KERN_WARNING
- "Got error %d from the server on DESTROY_SESSION. "
+ "NFS: Got error %d from the server on DESTROY_SESSION. "
"Session has been destroyed regardless...\n", status);
dprintk("<-- nfs4_proc_destroy_session\n");
@@ -5447,7 +5628,7 @@ static void nfs41_sequence_prepare(struct rpc_task *task, void *data)
args = task->tk_msg.rpc_argp;
res = task->tk_msg.rpc_resp;
- if (nfs41_setup_sequence(clp->cl_session, args, res, 0, task))
+ if (nfs41_setup_sequence(clp->cl_session, args, res, task))
return;
rpc_call_start(task);
}
@@ -5479,6 +5660,7 @@ static struct rpc_task *_nfs41_proc_sequence(struct nfs_client *clp, struct rpc_
nfs_put_client(clp);
return ERR_PTR(-ENOMEM);
}
+ nfs41_init_sequence(&calldata->args, &calldata->res, 0);
msg.rpc_argp = &calldata->args;
msg.rpc_resp = &calldata->res;
calldata->clp = clp;
@@ -5540,7 +5722,7 @@ static void nfs4_reclaim_complete_prepare(struct rpc_task *task, void *data)
rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
if (nfs41_setup_sequence(calldata->clp->cl_session,
&calldata->arg.seq_args,
- &calldata->res.seq_res, 0, task))
+ &calldata->res.seq_res, task))
return;
rpc_call_start(task);
@@ -5619,6 +5801,7 @@ static int nfs41_proc_reclaim_complete(struct nfs_client *clp)
calldata->clp = clp;
calldata->arg.one_fs = 0;
+ nfs41_init_sequence(&calldata->arg.seq_args, &calldata->res.seq_res, 0);
msg.rpc_argp = &calldata->arg;
msg.rpc_resp = &calldata->res;
task_setup_data.callback_data = calldata;
@@ -5650,7 +5833,7 @@ nfs4_layoutget_prepare(struct rpc_task *task, void *calldata)
* to be no way to prevent it completely.
*/
if (nfs4_setup_sequence(server, &lgp->args.seq_args,
- &lgp->res.seq_res, 0, task))
+ &lgp->res.seq_res, task))
return;
if (pnfs_choose_layoutget_stateid(&lgp->args.stateid,
NFS_I(lgp->args.inode)->layout,
@@ -5725,6 +5908,7 @@ int nfs4_proc_layoutget(struct nfs4_layoutget *lgp)
lgp->res.layoutp = &lgp->args.layout;
lgp->res.seq_res.sr_slot = NULL;
+ nfs41_init_sequence(&lgp->args.seq_args, &lgp->res.seq_res, 0);
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
@@ -5745,7 +5929,7 @@ nfs4_layoutreturn_prepare(struct rpc_task *task, void *calldata)
dprintk("--> %s\n", __func__);
if (nfs41_setup_sequence(lrp->clp->cl_session, &lrp->args.seq_args,
- &lrp->res.seq_res, 0, task))
+ &lrp->res.seq_res, task))
return;
rpc_call_start(task);
}
@@ -5811,6 +5995,7 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp)
int status;
dprintk("--> %s\n", __func__);
+ nfs41_init_sequence(&lrp->args.seq_args, &lrp->res.seq_res, 1);
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
@@ -5911,7 +6096,7 @@ static void nfs4_layoutcommit_prepare(struct rpc_task *task, void *calldata)
struct nfs_server *server = NFS_SERVER(data->args.inode);
if (nfs4_setup_sequence(server, &data->args.seq_args,
- &data->res.seq_res, 1, task))
+ &data->res.seq_res, task))
return;
rpc_call_start(task);
}
@@ -5998,6 +6183,7 @@ nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, bool sync)
data->args.lastbytewritten,
data->args.inode->i_ino);
+ nfs41_init_sequence(&data->args.seq_args, &data->res.seq_res, 1);
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
@@ -6091,11 +6277,12 @@ out_freepage:
out:
return err;
}
-static int _nfs41_test_stateid(struct nfs_server *server, struct nfs4_state *state)
+
+static int _nfs41_test_stateid(struct nfs_server *server, nfs4_stateid *stateid)
{
int status;
struct nfs41_test_stateid_args args = {
- .stateid = &state->stateid,
+ .stateid = stateid,
};
struct nfs41_test_stateid_res res;
struct rpc_message msg = {
@@ -6103,28 +6290,31 @@ static int _nfs41_test_stateid(struct nfs_server *server, struct nfs4_state *sta
.rpc_argp = &args,
.rpc_resp = &res,
};
- args.seq_args.sa_session = res.seq_res.sr_session = NULL;
- status = nfs4_call_sync_sequence(server->client, server, &msg, &args.seq_args, &res.seq_res, 0, 1);
+
+ nfs41_init_sequence(&args.seq_args, &res.seq_res, 0);
+ status = nfs4_call_sync_sequence(server->client, server, &msg, &args.seq_args, &res.seq_res, 1);
+
+ if (status == NFS_OK)
+ return res.status;
return status;
}
-static int nfs41_test_stateid(struct nfs_server *server, struct nfs4_state *state)
+static int nfs41_test_stateid(struct nfs_server *server, nfs4_stateid *stateid)
{
struct nfs4_exception exception = { };
int err;
do {
err = nfs4_handle_exception(server,
- _nfs41_test_stateid(server, state),
+ _nfs41_test_stateid(server, stateid),
&exception);
} while (exception.retry);
return err;
}
-static int _nfs4_free_stateid(struct nfs_server *server, struct nfs4_state *state)
+static int _nfs4_free_stateid(struct nfs_server *server, nfs4_stateid *stateid)
{
- int status;
struct nfs41_free_stateid_args args = {
- .stateid = &state->stateid,
+ .stateid = stateid,
};
struct nfs41_free_stateid_res res;
struct rpc_message msg = {
@@ -6133,25 +6323,46 @@ static int _nfs4_free_stateid(struct nfs_server *server, struct nfs4_state *stat
.rpc_resp = &res,
};
- args.seq_args.sa_session = res.seq_res.sr_session = NULL;
- status = nfs4_call_sync_sequence(server->client, server, &msg, &args.seq_args, &res.seq_res, 0, 1);
- return status;
+ nfs41_init_sequence(&args.seq_args, &res.seq_res, 0);
+ return nfs4_call_sync_sequence(server->client, server, &msg, &args.seq_args, &res.seq_res, 1);
}
-static int nfs41_free_stateid(struct nfs_server *server, struct nfs4_state *state)
+static int nfs41_free_stateid(struct nfs_server *server, nfs4_stateid *stateid)
{
struct nfs4_exception exception = { };
int err;
do {
err = nfs4_handle_exception(server,
- _nfs4_free_stateid(server, state),
+ _nfs4_free_stateid(server, stateid),
&exception);
} while (exception.retry);
return err;
}
+
+static bool nfs41_match_stateid(const nfs4_stateid *s1,
+ const nfs4_stateid *s2)
+{
+ if (memcmp(s1->other, s2->other, sizeof(s1->other)) != 0)
+ return false;
+
+ if (s1->seqid == s2->seqid)
+ return true;
+ if (s1->seqid == 0 || s2->seqid == 0)
+ return true;
+
+ return false;
+}
+
#endif /* CONFIG_NFS_V4_1 */
-struct nfs4_state_recovery_ops nfs40_reboot_recovery_ops = {
+static bool nfs4_match_stateid(const nfs4_stateid *s1,
+ const nfs4_stateid *s2)
+{
+ return nfs4_stateid_match(s1, s2);
+}
+
+
+static const struct nfs4_state_recovery_ops nfs40_reboot_recovery_ops = {
.owner_flag_bit = NFS_OWNER_RECLAIM_REBOOT,
.state_flag_bit = NFS_STATE_RECLAIM_REBOOT,
.recover_open = nfs4_open_reclaim,
@@ -6161,7 +6372,7 @@ struct nfs4_state_recovery_ops nfs40_reboot_recovery_ops = {
};
#if defined(CONFIG_NFS_V4_1)
-struct nfs4_state_recovery_ops nfs41_reboot_recovery_ops = {
+static const struct nfs4_state_recovery_ops nfs41_reboot_recovery_ops = {
.owner_flag_bit = NFS_OWNER_RECLAIM_REBOOT,
.state_flag_bit = NFS_STATE_RECLAIM_REBOOT,
.recover_open = nfs4_open_reclaim,
@@ -6172,7 +6383,7 @@ struct nfs4_state_recovery_ops nfs41_reboot_recovery_ops = {
};
#endif /* CONFIG_NFS_V4_1 */
-struct nfs4_state_recovery_ops nfs40_nograce_recovery_ops = {
+static const struct nfs4_state_recovery_ops nfs40_nograce_recovery_ops = {
.owner_flag_bit = NFS_OWNER_RECLAIM_NOGRACE,
.state_flag_bit = NFS_STATE_RECLAIM_NOGRACE,
.recover_open = nfs4_open_expired,
@@ -6182,7 +6393,7 @@ struct nfs4_state_recovery_ops nfs40_nograce_recovery_ops = {
};
#if defined(CONFIG_NFS_V4_1)
-struct nfs4_state_recovery_ops nfs41_nograce_recovery_ops = {
+static const struct nfs4_state_recovery_ops nfs41_nograce_recovery_ops = {
.owner_flag_bit = NFS_OWNER_RECLAIM_NOGRACE,
.state_flag_bit = NFS_STATE_RECLAIM_NOGRACE,
.recover_open = nfs41_open_expired,
@@ -6192,14 +6403,14 @@ struct nfs4_state_recovery_ops nfs41_nograce_recovery_ops = {
};
#endif /* CONFIG_NFS_V4_1 */
-struct nfs4_state_maintenance_ops nfs40_state_renewal_ops = {
+static const struct nfs4_state_maintenance_ops nfs40_state_renewal_ops = {
.sched_state_renewal = nfs4_proc_async_renew,
.get_state_renewal_cred_locked = nfs4_get_renew_cred_locked,
.renew_lease = nfs4_proc_renew,
};
#if defined(CONFIG_NFS_V4_1)
-struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
+static const struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
.sched_state_renewal = nfs41_proc_async_sequence,
.get_state_renewal_cred_locked = nfs4_get_machine_cred_locked,
.renew_lease = nfs4_proc_sequence,
@@ -6209,7 +6420,7 @@ struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
.minor_version = 0,
.call_sync = _nfs4_call_sync,
- .validate_stateid = nfs4_validate_delegation_stateid,
+ .match_stateid = nfs4_match_stateid,
.find_root_sec = nfs4_find_root_sec,
.reboot_recovery_ops = &nfs40_reboot_recovery_ops,
.nograce_recovery_ops = &nfs40_nograce_recovery_ops,
@@ -6220,7 +6431,7 @@ static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
.minor_version = 1,
.call_sync = _nfs4_call_sync_session,
- .validate_stateid = nfs41_validate_delegation_stateid,
+ .match_stateid = nfs41_match_stateid,
.find_root_sec = nfs41_find_root_sec,
.reboot_recovery_ops = &nfs41_reboot_recovery_ops,
.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
@@ -6260,9 +6471,11 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
.create = nfs4_proc_create,
.remove = nfs4_proc_remove,
.unlink_setup = nfs4_proc_unlink_setup,
+ .unlink_rpc_prepare = nfs4_proc_unlink_rpc_prepare,
.unlink_done = nfs4_proc_unlink_done,
.rename = nfs4_proc_rename,
.rename_setup = nfs4_proc_rename_setup,
+ .rename_rpc_prepare = nfs4_proc_rename_rpc_prepare,
.rename_done = nfs4_proc_rename_done,
.link = nfs4_proc_link,
.symlink = nfs4_proc_symlink,
@@ -6276,8 +6489,10 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
.set_capabilities = nfs4_server_capabilities,
.decode_dirent = nfs4_decode_dirent,
.read_setup = nfs4_proc_read_setup,
+ .read_rpc_prepare = nfs4_proc_read_rpc_prepare,
.read_done = nfs4_read_done,
.write_setup = nfs4_proc_write_setup,
+ .write_rpc_prepare = nfs4_proc_write_rpc_prepare,
.write_done = nfs4_write_done,
.commit_setup = nfs4_proc_commit_setup,
.commit_done = nfs4_commit_done,
@@ -6301,6 +6516,10 @@ const struct xattr_handler *nfs4_xattr_handlers[] = {
NULL
};
+module_param(max_session_slots, ushort, 0644);
+MODULE_PARM_DESC(max_session_slots, "Maximum number of outstanding NFSv4.1 "
+ "requests the client will negotiate");
+
/*
* Local variables:
* c-basic-offset: 8
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 45392032e7bd..0f43414eb25a 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -146,6 +146,11 @@ struct rpc_cred *nfs4_get_renew_cred_locked(struct nfs_client *clp)
struct rpc_cred *cred = NULL;
struct nfs_server *server;
+ /* Use machine credentials if available */
+ cred = nfs4_get_machine_cred_locked(clp);
+ if (cred != NULL)
+ goto out;
+
rcu_read_lock();
list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) {
cred = nfs4_get_renew_cred_server_locked(server);
@@ -153,6 +158,8 @@ struct rpc_cred *nfs4_get_renew_cred_locked(struct nfs_client *clp)
break;
}
rcu_read_unlock();
+
+out:
return cred;
}
@@ -190,30 +197,29 @@ static int nfs41_setup_state_renewal(struct nfs_client *clp)
static void nfs4_end_drain_session(struct nfs_client *clp)
{
struct nfs4_session *ses = clp->cl_session;
+ struct nfs4_slot_table *tbl;
int max_slots;
if (ses == NULL)
return;
+ tbl = &ses->fc_slot_table;
if (test_and_clear_bit(NFS4_SESSION_DRAINING, &ses->session_state)) {
- spin_lock(&ses->fc_slot_table.slot_tbl_lock);
- max_slots = ses->fc_slot_table.max_slots;
+ spin_lock(&tbl->slot_tbl_lock);
+ max_slots = tbl->max_slots;
while (max_slots--) {
- struct rpc_task *task;
-
- task = rpc_wake_up_next(&ses->fc_slot_table.
- slot_tbl_waitq);
- if (!task)
+ if (rpc_wake_up_first(&tbl->slot_tbl_waitq,
+ nfs4_set_task_privileged,
+ NULL) == NULL)
break;
- rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
}
- spin_unlock(&ses->fc_slot_table.slot_tbl_lock);
+ spin_unlock(&tbl->slot_tbl_lock);
}
}
static int nfs4_wait_on_slot_tbl(struct nfs4_slot_table *tbl)
{
spin_lock(&tbl->slot_tbl_lock);
- if (tbl->highest_used_slotid != -1) {
+ if (tbl->highest_used_slotid != NFS4_NO_SLOT) {
INIT_COMPLETION(tbl->complete);
spin_unlock(&tbl->slot_tbl_lock);
return wait_for_completion_interruptible(&tbl->complete);
@@ -317,62 +323,6 @@ out:
return cred;
}
-static void nfs_alloc_unique_id_locked(struct rb_root *root,
- struct nfs_unique_id *new,
- __u64 minval, int maxbits)
-{
- struct rb_node **p, *parent;
- struct nfs_unique_id *pos;
- __u64 mask = ~0ULL;
-
- if (maxbits < 64)
- mask = (1ULL << maxbits) - 1ULL;
-
- /* Ensure distribution is more or less flat */
- get_random_bytes(&new->id, sizeof(new->id));
- new->id &= mask;
- if (new->id < minval)
- new->id += minval;
-retry:
- p = &root->rb_node;
- parent = NULL;
-
- while (*p != NULL) {
- parent = *p;
- pos = rb_entry(parent, struct nfs_unique_id, rb_node);
-
- if (new->id < pos->id)
- p = &(*p)->rb_left;
- else if (new->id > pos->id)
- p = &(*p)->rb_right;
- else
- goto id_exists;
- }
- rb_link_node(&new->rb_node, parent, p);
- rb_insert_color(&new->rb_node, root);
- return;
-id_exists:
- for (;;) {
- new->id++;
- if (new->id < minval || (new->id & mask) != new->id) {
- new->id = minval;
- break;
- }
- parent = rb_next(parent);
- if (parent == NULL)
- break;
- pos = rb_entry(parent, struct nfs_unique_id, rb_node);
- if (new->id < pos->id)
- break;
- }
- goto retry;
-}
-
-static void nfs_free_unique_id(struct rb_root *root, struct nfs_unique_id *id)
-{
- rb_erase(&id->rb_node, root);
-}
-
static struct nfs4_state_owner *
nfs4_find_state_owner_locked(struct nfs_server *server, struct rpc_cred *cred)
{
@@ -405,6 +355,7 @@ nfs4_insert_state_owner_locked(struct nfs4_state_owner *new)
struct rb_node **p = &server->state_owners.rb_node,
*parent = NULL;
struct nfs4_state_owner *sp;
+ int err;
while (*p != NULL) {
parent = *p;
@@ -421,8 +372,9 @@ nfs4_insert_state_owner_locked(struct nfs4_state_owner *new)
return sp;
}
}
- nfs_alloc_unique_id_locked(&server->openowner_id,
- &new->so_owner_id, 1, 64);
+ err = ida_get_new(&server->openowner_id, &new->so_seqid.owner_id);
+ if (err)
+ return ERR_PTR(err);
rb_link_node(&new->so_server_node, parent, p);
rb_insert_color(&new->so_server_node, &server->state_owners);
return new;
@@ -435,7 +387,23 @@ nfs4_remove_state_owner_locked(struct nfs4_state_owner *sp)
if (!RB_EMPTY_NODE(&sp->so_server_node))
rb_erase(&sp->so_server_node, &server->state_owners);
- nfs_free_unique_id(&server->openowner_id, &sp->so_owner_id);
+ ida_remove(&server->openowner_id, sp->so_seqid.owner_id);
+}
+
+static void
+nfs4_init_seqid_counter(struct nfs_seqid_counter *sc)
+{
+ sc->flags = 0;
+ sc->counter = 0;
+ spin_lock_init(&sc->lock);
+ INIT_LIST_HEAD(&sc->list);
+ rpc_init_wait_queue(&sc->wait, "Seqid_waitqueue");
+}
+
+static void
+nfs4_destroy_seqid_counter(struct nfs_seqid_counter *sc)
+{
+ rpc_destroy_wait_queue(&sc->wait);
}
/*
@@ -444,19 +412,20 @@ nfs4_remove_state_owner_locked(struct nfs4_state_owner *sp)
*
*/
static struct nfs4_state_owner *
-nfs4_alloc_state_owner(void)
+nfs4_alloc_state_owner(struct nfs_server *server,
+ struct rpc_cred *cred,
+ gfp_t gfp_flags)
{
struct nfs4_state_owner *sp;
- sp = kzalloc(sizeof(*sp),GFP_NOFS);
+ sp = kzalloc(sizeof(*sp), gfp_flags);
if (!sp)
return NULL;
+ sp->so_server = server;
+ sp->so_cred = get_rpccred(cred);
spin_lock_init(&sp->so_lock);
INIT_LIST_HEAD(&sp->so_states);
- rpc_init_wait_queue(&sp->so_sequence.wait, "Seqid_waitqueue");
- sp->so_seqid.sequence = &sp->so_sequence;
- spin_lock_init(&sp->so_sequence.lock);
- INIT_LIST_HEAD(&sp->so_sequence.list);
+ nfs4_init_seqid_counter(&sp->so_seqid);
atomic_set(&sp->so_count, 1);
INIT_LIST_HEAD(&sp->so_lru);
return sp;
@@ -478,7 +447,7 @@ nfs4_drop_state_owner(struct nfs4_state_owner *sp)
static void nfs4_free_state_owner(struct nfs4_state_owner *sp)
{
- rpc_destroy_wait_queue(&sp->so_sequence.wait);
+ nfs4_destroy_seqid_counter(&sp->so_seqid);
put_rpccred(sp->so_cred);
kfree(sp);
}
@@ -516,7 +485,8 @@ static void nfs4_gc_state_owners(struct nfs_server *server)
* Returns a pointer to an instantiated nfs4_state_owner struct, or NULL.
*/
struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server,
- struct rpc_cred *cred)
+ struct rpc_cred *cred,
+ gfp_t gfp_flags)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_state_owner *sp, *new;
@@ -526,20 +496,18 @@ struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server,
spin_unlock(&clp->cl_lock);
if (sp != NULL)
goto out;
- new = nfs4_alloc_state_owner();
+ new = nfs4_alloc_state_owner(server, cred, gfp_flags);
if (new == NULL)
goto out;
- new->so_server = server;
- new->so_cred = cred;
- spin_lock(&clp->cl_lock);
- sp = nfs4_insert_state_owner_locked(new);
- spin_unlock(&clp->cl_lock);
- if (sp == new)
- get_rpccred(cred);
- else {
- rpc_destroy_wait_queue(&new->so_sequence.wait);
- kfree(new);
- }
+ do {
+ if (ida_pre_get(&server->openowner_id, gfp_flags) == 0)
+ break;
+ spin_lock(&clp->cl_lock);
+ sp = nfs4_insert_state_owner_locked(new);
+ spin_unlock(&clp->cl_lock);
+ } while (sp == ERR_PTR(-EAGAIN));
+ if (sp != new)
+ nfs4_free_state_owner(new);
out:
nfs4_gc_state_owners(server);
return sp;
@@ -795,15 +763,11 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
{
struct nfs4_lock_state *lsp;
struct nfs_server *server = state->owner->so_server;
- struct nfs_client *clp = server->nfs_client;
lsp = kzalloc(sizeof(*lsp), GFP_NOFS);
if (lsp == NULL)
return NULL;
- rpc_init_wait_queue(&lsp->ls_sequence.wait, "lock_seqid_waitqueue");
- spin_lock_init(&lsp->ls_sequence.lock);
- INIT_LIST_HEAD(&lsp->ls_sequence.list);
- lsp->ls_seqid.sequence = &lsp->ls_sequence;
+ nfs4_init_seqid_counter(&lsp->ls_seqid);
atomic_set(&lsp->ls_count, 1);
lsp->ls_state = state;
lsp->ls_owner.lo_type = type;
@@ -815,25 +779,22 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
lsp->ls_owner.lo_u.posix_owner = fl_owner;
break;
default:
- kfree(lsp);
- return NULL;
+ goto out_free;
}
- spin_lock(&clp->cl_lock);
- nfs_alloc_unique_id_locked(&server->lockowner_id, &lsp->ls_id, 1, 64);
- spin_unlock(&clp->cl_lock);
+ lsp->ls_seqid.owner_id = ida_simple_get(&server->lockowner_id, 0, 0, GFP_NOFS);
+ if (lsp->ls_seqid.owner_id < 0)
+ goto out_free;
INIT_LIST_HEAD(&lsp->ls_locks);
return lsp;
+out_free:
+ kfree(lsp);
+ return NULL;
}
-static void nfs4_free_lock_state(struct nfs4_lock_state *lsp)
+void nfs4_free_lock_state(struct nfs_server *server, struct nfs4_lock_state *lsp)
{
- struct nfs_server *server = lsp->ls_state->owner->so_server;
- struct nfs_client *clp = server->nfs_client;
-
- spin_lock(&clp->cl_lock);
- nfs_free_unique_id(&server->lockowner_id, &lsp->ls_id);
- spin_unlock(&clp->cl_lock);
- rpc_destroy_wait_queue(&lsp->ls_sequence.wait);
+ ida_simple_remove(&server->lockowner_id, lsp->ls_seqid.owner_id);
+ nfs4_destroy_seqid_counter(&lsp->ls_seqid);
kfree(lsp);
}
@@ -865,7 +826,7 @@ static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_
}
spin_unlock(&state->state_lock);
if (new != NULL)
- nfs4_free_lock_state(new);
+ nfs4_free_lock_state(state->owner->so_server, new);
return lsp;
}
@@ -886,9 +847,11 @@ void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
if (list_empty(&state->lock_states))
clear_bit(LK_STATE_IN_USE, &state->flags);
spin_unlock(&state->state_lock);
- if (lsp->ls_flags & NFS_LOCK_INITIALIZED)
- nfs4_release_lockowner(lsp);
- nfs4_free_lock_state(lsp);
+ if (lsp->ls_flags & NFS_LOCK_INITIALIZED) {
+ if (nfs4_release_lockowner(lsp) == 0)
+ return;
+ }
+ nfs4_free_lock_state(lsp->ls_state->owner->so_server, lsp);
}
static void nfs4_fl_copy_lock(struct file_lock *dst, struct file_lock *src)
@@ -918,7 +881,8 @@ int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl)
if (fl->fl_flags & FL_POSIX)
lsp = nfs4_get_lock_state(state, fl->fl_owner, 0, NFS4_POSIX_LOCK_TYPE);
else if (fl->fl_flags & FL_FLOCK)
- lsp = nfs4_get_lock_state(state, 0, fl->fl_pid, NFS4_FLOCK_LOCK_TYPE);
+ lsp = nfs4_get_lock_state(state, NULL, fl->fl_pid,
+ NFS4_FLOCK_LOCK_TYPE);
else
return -EINVAL;
if (lsp == NULL)
@@ -928,28 +892,49 @@ int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl)
return 0;
}
-/*
- * Byte-range lock aware utility to initialize the stateid of read/write
- * requests.
- */
-void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t fl_owner, pid_t fl_pid)
+static bool nfs4_copy_lock_stateid(nfs4_stateid *dst, struct nfs4_state *state,
+ fl_owner_t fl_owner, pid_t fl_pid)
{
struct nfs4_lock_state *lsp;
- int seq;
+ bool ret = false;
- do {
- seq = read_seqbegin(&state->seqlock);
- memcpy(dst, &state->stateid, sizeof(*dst));
- } while (read_seqretry(&state->seqlock, seq));
if (test_bit(LK_STATE_IN_USE, &state->flags) == 0)
- return;
+ goto out;
spin_lock(&state->state_lock);
lsp = __nfs4_find_lock_state(state, fl_owner, fl_pid, NFS4_ANY_LOCK_TYPE);
- if (lsp != NULL && (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0)
- memcpy(dst, &lsp->ls_stateid, sizeof(*dst));
+ if (lsp != NULL && (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0) {
+ nfs4_stateid_copy(dst, &lsp->ls_stateid);
+ ret = true;
+ }
spin_unlock(&state->state_lock);
nfs4_put_lock_state(lsp);
+out:
+ return ret;
+}
+
+static void nfs4_copy_open_stateid(nfs4_stateid *dst, struct nfs4_state *state)
+{
+ int seq;
+
+ do {
+ seq = read_seqbegin(&state->seqlock);
+ nfs4_stateid_copy(dst, &state->stateid);
+ } while (read_seqretry(&state->seqlock, seq));
+}
+
+/*
+ * Byte-range lock aware utility to initialize the stateid of read/write
+ * requests.
+ */
+void nfs4_select_rw_stateid(nfs4_stateid *dst, struct nfs4_state *state,
+ fmode_t fmode, fl_owner_t fl_owner, pid_t fl_pid)
+{
+ if (nfs4_copy_delegation_stateid(dst, state->inode, fmode))
+ return;
+ if (nfs4_copy_lock_stateid(dst, state, fl_owner, fl_pid))
+ return;
+ nfs4_copy_open_stateid(dst, state);
}
struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_mask)
@@ -960,20 +945,28 @@ struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_m
if (new != NULL) {
new->sequence = counter;
INIT_LIST_HEAD(&new->list);
+ new->task = NULL;
}
return new;
}
void nfs_release_seqid(struct nfs_seqid *seqid)
{
- if (!list_empty(&seqid->list)) {
- struct rpc_sequence *sequence = seqid->sequence->sequence;
+ struct nfs_seqid_counter *sequence;
- spin_lock(&sequence->lock);
- list_del_init(&seqid->list);
- spin_unlock(&sequence->lock);
- rpc_wake_up(&sequence->wait);
+ if (list_empty(&seqid->list))
+ return;
+ sequence = seqid->sequence;
+ spin_lock(&sequence->lock);
+ list_del_init(&seqid->list);
+ if (!list_empty(&sequence->list)) {
+ struct nfs_seqid *next;
+
+ next = list_first_entry(&sequence->list,
+ struct nfs_seqid, list);
+ rpc_wake_up_queued_task(&sequence->wait, next->task);
}
+ spin_unlock(&sequence->lock);
}
void nfs_free_seqid(struct nfs_seqid *seqid)
@@ -989,14 +982,14 @@ void nfs_free_seqid(struct nfs_seqid *seqid)
*/
static void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
{
- BUG_ON(list_first_entry(&seqid->sequence->sequence->list, struct nfs_seqid, list) != seqid);
+ BUG_ON(list_first_entry(&seqid->sequence->list, struct nfs_seqid, list) != seqid);
switch (status) {
case 0:
break;
case -NFS4ERR_BAD_SEQID:
if (seqid->sequence->flags & NFS_SEQID_CONFIRMED)
return;
- printk(KERN_WARNING "NFS: v4 server returned a bad"
+ pr_warn_ratelimited("NFS: v4 server returned a bad"
" sequence-id error on an"
" unconfirmed sequence %p!\n",
seqid->sequence);
@@ -1040,10 +1033,11 @@ void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid)
int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task)
{
- struct rpc_sequence *sequence = seqid->sequence->sequence;
+ struct nfs_seqid_counter *sequence = seqid->sequence;
int status = 0;
spin_lock(&sequence->lock);
+ seqid->task = task;
if (list_empty(&seqid->list))
list_add_tail(&seqid->list, &sequence->list);
if (list_first_entry(&sequence->list, struct nfs_seqid, list) == seqid)
@@ -1072,19 +1066,28 @@ static void nfs4_clear_state_manager_bit(struct nfs_client *clp)
void nfs4_schedule_state_manager(struct nfs_client *clp)
{
struct task_struct *task;
+ char buf[INET6_ADDRSTRLEN + sizeof("-manager") + 1];
if (test_and_set_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) != 0)
return;
__module_get(THIS_MODULE);
atomic_inc(&clp->cl_count);
- task = kthread_run(nfs4_run_state_manager, clp, "%s-manager",
- rpc_peeraddr2str(clp->cl_rpcclient,
- RPC_DISPLAY_ADDR));
- if (!IS_ERR(task))
- return;
- nfs4_clear_state_manager_bit(clp);
- nfs_put_client(clp);
- module_put(THIS_MODULE);
+
+ /* The rcu_read_lock() is not strictly necessary, as the state
+ * manager is the only thread that ever changes the rpc_xprt
+ * after it's initialized. At this point, we're single threaded. */
+ rcu_read_lock();
+ snprintf(buf, sizeof(buf), "%s-manager",
+ rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR));
+ rcu_read_unlock();
+ task = kthread_run(nfs4_run_state_manager, clp, buf);
+ if (IS_ERR(task)) {
+ printk(KERN_ERR "%s: kthread_run: %ld\n",
+ __func__, PTR_ERR(task));
+ nfs4_clear_state_manager_bit(clp);
+ nfs_put_client(clp);
+ module_put(THIS_MODULE);
+ }
}
/*
@@ -1098,10 +1101,25 @@ void nfs4_schedule_lease_recovery(struct nfs_client *clp)
set_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state);
nfs4_schedule_state_manager(clp);
}
+EXPORT_SYMBOL_GPL(nfs4_schedule_lease_recovery);
+
+/*
+ * nfs40_handle_cb_pathdown - return all delegations after NFS4ERR_CB_PATH_DOWN
+ * @clp: client to process
+ *
+ * Set the NFS4CLNT_LEASE_EXPIRED state in order to force a
+ * resend of the SETCLIENTID and hence re-establish the
+ * callback channel. Then return all existing delegations.
+ */
+static void nfs40_handle_cb_pathdown(struct nfs_client *clp)
+{
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ nfs_expire_all_delegations(clp);
+}
void nfs4_schedule_path_down_recovery(struct nfs_client *clp)
{
- nfs_handle_cb_pathdown(clp);
+ nfs40_handle_cb_pathdown(clp);
nfs4_schedule_state_manager(clp);
}
@@ -1132,11 +1150,37 @@ void nfs4_schedule_stateid_recovery(const struct nfs_server *server, struct nfs4
{
struct nfs_client *clp = server->nfs_client;
- if (test_and_clear_bit(NFS_DELEGATED_STATE, &state->flags))
- nfs_async_inode_return_delegation(state->inode, &state->stateid);
nfs4_state_mark_reclaim_nograce(clp, state);
nfs4_schedule_state_manager(clp);
}
+EXPORT_SYMBOL_GPL(nfs4_schedule_stateid_recovery);
+
+void nfs_inode_find_state_and_recover(struct inode *inode,
+ const nfs4_stateid *stateid)
+{
+ struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
+ struct nfs_inode *nfsi = NFS_I(inode);
+ struct nfs_open_context *ctx;
+ struct nfs4_state *state;
+ bool found = false;
+
+ spin_lock(&inode->i_lock);
+ list_for_each_entry(ctx, &nfsi->open_files, list) {
+ state = ctx->state;
+ if (state == NULL)
+ continue;
+ if (!test_bit(NFS_DELEGATED_STATE, &state->flags))
+ continue;
+ if (!nfs4_stateid_match(&state->stateid, stateid))
+ continue;
+ nfs4_state_mark_reclaim_nograce(clp, state);
+ found = true;
+ }
+ spin_unlock(&inode->i_lock);
+ if (found)
+ nfs4_schedule_state_manager(clp);
+}
+
static int nfs4_reclaim_locks(struct nfs4_state *state, const struct nfs4_state_recovery_ops *ops)
{
@@ -1175,8 +1219,8 @@ static int nfs4_reclaim_locks(struct nfs4_state *state, const struct nfs4_state_
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
goto out;
default:
- printk(KERN_ERR "%s: unhandled error %d. Zeroing state\n",
- __func__, status);
+ printk(KERN_ERR "NFS: %s: unhandled error %d. "
+ "Zeroing state\n", __func__, status);
case -ENOMEM:
case -NFS4ERR_DENIED:
case -NFS4ERR_RECLAIM_BAD:
@@ -1222,8 +1266,9 @@ restart:
spin_lock(&state->state_lock);
list_for_each_entry(lock, &state->lock_states, ls_locks) {
if (!(lock->ls_flags & NFS_LOCK_INITIALIZED))
- printk("%s: Lock reclaim failed!\n",
- __func__);
+ pr_warn_ratelimited("NFS: "
+ "%s: Lock reclaim "
+ "failed!\n", __func__);
}
spin_unlock(&state->state_lock);
nfs4_put_open_state(state);
@@ -1232,8 +1277,8 @@ restart:
}
switch (status) {
default:
- printk(KERN_ERR "%s: unhandled error %d. Zeroing state\n",
- __func__, status);
+ printk(KERN_ERR "NFS: %s: unhandled error %d. "
+ "Zeroing state\n", __func__, status);
case -ENOENT:
case -ENOMEM:
case -ESTALE:
@@ -1241,8 +1286,8 @@ restart:
* Open state on this file cannot be recovered
* All we can do is revert to using the zero stateid.
*/
- memset(state->stateid.data, 0,
- sizeof(state->stateid.data));
+ memset(&state->stateid, 0,
+ sizeof(state->stateid));
/* Mark the file as being 'closed' */
state->state = 0;
break;
@@ -1420,7 +1465,7 @@ static int nfs4_recovery_handle_error(struct nfs_client *clp, int error)
case 0:
break;
case -NFS4ERR_CB_PATH_DOWN:
- nfs_handle_cb_pathdown(clp);
+ nfs40_handle_cb_pathdown(clp);
break;
case -NFS4ERR_NO_GRACE:
nfs4_state_end_reclaim_reboot(clp);
@@ -1801,7 +1846,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
} while (atomic_read(&clp->cl_count) > 1);
return;
out_error:
- printk(KERN_WARNING "Error: state manager failed on NFSv4 server %s"
+ pr_warn_ratelimited("NFS: state manager failed on NFSv4 server %s"
" with error %d\n", clp->cl_hostname, -status);
nfs4_end_drain_session(clp);
nfs4_clear_state_manager_bit(clp);
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 33bd8d0f745d..c74fdb114b48 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -44,6 +44,8 @@
#include <linux/pagemap.h>
#include <linux/proc_fs.h>
#include <linux/kdev_t.h>
+#include <linux/module.h>
+#include <linux/utsname.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/msg_prot.h>
#include <linux/sunrpc/gss_api.h>
@@ -271,7 +273,12 @@ static int nfs4_stat_to_errno(int);
1 /* flags */ + \
1 /* spa_how */ + \
0 /* SP4_NONE (for now) */ + \
- 1 /* zero implemetation id array */)
+ 1 /* implementation id array of size 1 */ + \
+ 1 /* nii_domain */ + \
+ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
+ 1 /* nii_name */ + \
+ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
+ 3 /* nii_date */)
#define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
2 /* eir_clientid */ + \
1 /* eir_sequenceid */ + \
@@ -284,7 +291,11 @@ static int nfs4_stat_to_errno(int);
/* eir_server_scope<> */ \
XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
1 /* eir_server_impl_id array length */ + \
- 0 /* ignored eir_server_impl_id contents */)
+ 1 /* nii_domain */ + \
+ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
+ 1 /* nii_name */ + \
+ XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
+ 3 /* nii_date */)
#define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
#define decode_channel_attrs_maxsz (6 + \
1 /* ca_rdma_ird.len */ + \
@@ -838,6 +849,12 @@ const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
XDR_UNIT);
#endif /* CONFIG_NFS_V4_1 */
+static unsigned short send_implementation_id = 1;
+
+module_param(send_implementation_id, ushort, 0644);
+MODULE_PARM_DESC(send_implementation_id,
+ "Send implementation ID with NFSv4.1 exchange_id");
+
static const umode_t nfs_type2fmt[] = {
[NF4BAD] = 0,
[NF4REG] = S_IFREG,
@@ -868,15 +885,44 @@ static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
return p;
}
+static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len)
+{
+ __be32 *p;
+
+ p = xdr_reserve_space(xdr, len);
+ xdr_encode_opaque_fixed(p, buf, len);
+}
+
static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
{
__be32 *p;
- p = xdr_reserve_space(xdr, 4 + len);
- BUG_ON(p == NULL);
+ p = reserve_space(xdr, 4 + len);
xdr_encode_opaque(p, str, len);
}
+static void encode_uint32(struct xdr_stream *xdr, u32 n)
+{
+ __be32 *p;
+
+ p = reserve_space(xdr, 4);
+ *p = cpu_to_be32(n);
+}
+
+static void encode_uint64(struct xdr_stream *xdr, u64 n)
+{
+ __be32 *p;
+
+ p = reserve_space(xdr, 8);
+ xdr_encode_hyper(p, n);
+}
+
+static void encode_nfs4_seqid(struct xdr_stream *xdr,
+ const struct nfs_seqid *seqid)
+{
+ encode_uint32(xdr, seqid->sequence->counter);
+}
+
static void encode_compound_hdr(struct xdr_stream *xdr,
struct rpc_rqst *req,
struct compound_hdr *hdr)
@@ -889,28 +935,37 @@ static void encode_compound_hdr(struct xdr_stream *xdr,
* but this is not required as a MUST for the server to do so. */
hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
- dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
- p = reserve_space(xdr, 4 + hdr->taglen + 8);
- p = xdr_encode_opaque(p, hdr->tag, hdr->taglen);
+ encode_string(xdr, hdr->taglen, hdr->tag);
+ p = reserve_space(xdr, 8);
*p++ = cpu_to_be32(hdr->minorversion);
hdr->nops_p = p;
*p = cpu_to_be32(hdr->nops);
}
+static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op,
+ uint32_t replen,
+ struct compound_hdr *hdr)
+{
+ encode_uint32(xdr, op);
+ hdr->nops++;
+ hdr->replen += replen;
+}
+
static void encode_nops(struct compound_hdr *hdr)
{
BUG_ON(hdr->nops > NFS4_MAX_OPS);
*hdr->nops_p = htonl(hdr->nops);
}
-static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
+static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid)
{
- __be32 *p;
+ encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
+}
- p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
- BUG_ON(p == NULL);
- xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
+static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
+{
+ encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE);
}
static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
@@ -1023,7 +1078,7 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const
* Now we backfill the bitmap and the attribute buffer length.
*/
if (len != ((char *)p - (char *)q) + 4) {
- printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n",
+ printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n",
len, ((char *)p - (char *)q) + 4);
BUG();
}
@@ -1037,46 +1092,33 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const
static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 8);
- *p++ = cpu_to_be32(OP_ACCESS);
- *p = cpu_to_be32(access);
- hdr->nops++;
- hdr->replen += decode_access_maxsz;
+ encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr);
+ encode_uint32(xdr, access);
}
static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 8+NFS4_STATEID_SIZE);
- *p++ = cpu_to_be32(OP_CLOSE);
- *p++ = cpu_to_be32(arg->seqid->sequence->counter);
- xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
- hdr->nops++;
- hdr->replen += decode_close_maxsz;
+ encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr);
+ encode_nfs4_seqid(xdr, arg->seqid);
+ encode_nfs4_stateid(xdr, arg->stateid);
}
static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
{
__be32 *p;
- p = reserve_space(xdr, 16);
- *p++ = cpu_to_be32(OP_COMMIT);
+ encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr);
+ p = reserve_space(xdr, 12);
p = xdr_encode_hyper(p, args->offset);
*p = cpu_to_be32(args->count);
- hdr->nops++;
- hdr->replen += decode_commit_maxsz;
}
static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
{
__be32 *p;
- p = reserve_space(xdr, 8);
- *p++ = cpu_to_be32(OP_CREATE);
- *p = cpu_to_be32(create->ftype);
+ encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr);
+ encode_uint32(xdr, create->ftype);
switch (create->ftype) {
case NF4LNK:
@@ -1096,9 +1138,6 @@ static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *
}
encode_string(xdr, create->name->len, create->name->name);
- hdr->nops++;
- hdr->replen += decode_create_maxsz;
-
encode_attrs(xdr, create->attrs, create->server);
}
@@ -1106,25 +1145,21 @@ static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct c
{
__be32 *p;
- p = reserve_space(xdr, 12);
- *p++ = cpu_to_be32(OP_GETATTR);
+ encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
+ p = reserve_space(xdr, 8);
*p++ = cpu_to_be32(1);
*p = cpu_to_be32(bitmap);
- hdr->nops++;
- hdr->replen += decode_getattr_maxsz;
}
static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
{
__be32 *p;
- p = reserve_space(xdr, 16);
- *p++ = cpu_to_be32(OP_GETATTR);
+ encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
+ p = reserve_space(xdr, 12);
*p++ = cpu_to_be32(2);
*p++ = cpu_to_be32(bm0);
*p = cpu_to_be32(bm1);
- hdr->nops++;
- hdr->replen += decode_getattr_maxsz;
}
static void
@@ -1134,8 +1169,7 @@ encode_getattr_three(struct xdr_stream *xdr,
{
__be32 *p;
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(OP_GETATTR);
+ encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
if (bm2) {
p = reserve_space(xdr, 16);
*p++ = cpu_to_be32(3);
@@ -1152,8 +1186,6 @@ encode_getattr_three(struct xdr_stream *xdr,
*p++ = cpu_to_be32(1);
*p = cpu_to_be32(bm0);
}
- hdr->nops++;
- hdr->replen += decode_getattr_maxsz;
}
static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
@@ -1179,23 +1211,13 @@ static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, stru
static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(OP_GETFH);
- hdr->nops++;
- hdr->replen += decode_getfh_maxsz;
+ encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr);
}
static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 8 + name->len);
- *p++ = cpu_to_be32(OP_LINK);
- xdr_encode_opaque(p, name->name, name->len);
- hdr->nops++;
- hdr->replen += decode_link_maxsz;
+ encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr);
+ encode_string(xdr, name->len, name->name);
}
static inline int nfs4_lock_type(struct file_lock *fl, int block)
@@ -1232,79 +1254,60 @@ static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args
{
__be32 *p;
- p = reserve_space(xdr, 32);
- *p++ = cpu_to_be32(OP_LOCK);
+ encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr);
+ p = reserve_space(xdr, 28);
*p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
*p++ = cpu_to_be32(args->reclaim);
p = xdr_encode_hyper(p, args->fl->fl_start);
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
*p = cpu_to_be32(args->new_lock_owner);
if (args->new_lock_owner){
- p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
- *p++ = cpu_to_be32(args->open_seqid->sequence->counter);
- p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
- *p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
+ encode_nfs4_seqid(xdr, args->open_seqid);
+ encode_nfs4_stateid(xdr, args->open_stateid);
+ encode_nfs4_seqid(xdr, args->lock_seqid);
encode_lockowner(xdr, &args->lock_owner);
}
else {
- p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
- p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE);
- *p = cpu_to_be32(args->lock_seqid->sequence->counter);
+ encode_nfs4_stateid(xdr, args->lock_stateid);
+ encode_nfs4_seqid(xdr, args->lock_seqid);
}
- hdr->nops++;
- hdr->replen += decode_lock_maxsz;
}
static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
{
__be32 *p;
- p = reserve_space(xdr, 24);
- *p++ = cpu_to_be32(OP_LOCKT);
+ encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr);
+ p = reserve_space(xdr, 20);
*p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
p = xdr_encode_hyper(p, args->fl->fl_start);
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
encode_lockowner(xdr, &args->lock_owner);
- hdr->nops++;
- hdr->replen += decode_lockt_maxsz;
}
static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
{
__be32 *p;
- p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16);
- *p++ = cpu_to_be32(OP_LOCKU);
- *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
- *p++ = cpu_to_be32(args->seqid->sequence->counter);
- p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
+ encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr);
+ encode_uint32(xdr, nfs4_lock_type(args->fl, 0));
+ encode_nfs4_seqid(xdr, args->seqid);
+ encode_nfs4_stateid(xdr, args->stateid);
+ p = reserve_space(xdr, 16);
p = xdr_encode_hyper(p, args->fl->fl_start);
xdr_encode_hyper(p, nfs4_lock_length(args->fl));
- hdr->nops++;
- hdr->replen += decode_locku_maxsz;
}
static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(OP_RELEASE_LOCKOWNER);
+ encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr);
encode_lockowner(xdr, lowner);
- hdr->nops++;
- hdr->replen += decode_release_lockowner_maxsz;
}
static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
{
- int len = name->len;
- __be32 *p;
-
- p = reserve_space(xdr, 8 + len);
- *p++ = cpu_to_be32(OP_LOOKUP);
- xdr_encode_opaque(p, name->name, len);
- hdr->nops++;
- hdr->replen += decode_lookup_maxsz;
+ encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr);
+ encode_string(xdr, name->len, name->name);
}
static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
@@ -1335,9 +1338,7 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena
* opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
* owner 4 = 32
*/
- p = reserve_space(xdr, 8);
- *p++ = cpu_to_be32(OP_OPEN);
- *p = cpu_to_be32(arg->seqid->sequence->counter);
+ encode_nfs4_seqid(xdr, arg->seqid);
encode_share_access(xdr, arg->fmode);
p = reserve_space(xdr, 32);
p = xdr_encode_hyper(p, arg->clientid);
@@ -1437,14 +1438,15 @@ static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struc
{
__be32 *p;
- p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
- *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
- xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
+ p = reserve_space(xdr, 4);
+ *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
+ encode_nfs4_stateid(xdr, stateid);
encode_string(xdr, name->len, name->name);
}
static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
{
+ encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr);
encode_openhdr(xdr, arg);
encode_opentype(xdr, arg);
switch (arg->claim) {
@@ -1460,88 +1462,64 @@ static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg,
default:
BUG();
}
- hdr->nops++;
- hdr->replen += decode_open_maxsz;
}
static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
- *p++ = cpu_to_be32(OP_OPEN_CONFIRM);
- p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
- *p = cpu_to_be32(arg->seqid->sequence->counter);
- hdr->nops++;
- hdr->replen += decode_open_confirm_maxsz;
+ encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr);
+ encode_nfs4_stateid(xdr, arg->stateid);
+ encode_nfs4_seqid(xdr, arg->seqid);
}
static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
- *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE);
- p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
- *p = cpu_to_be32(arg->seqid->sequence->counter);
+ encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr);
+ encode_nfs4_stateid(xdr, arg->stateid);
+ encode_nfs4_seqid(xdr, arg->seqid);
encode_share_access(xdr, arg->fmode);
- hdr->nops++;
- hdr->replen += decode_open_downgrade_maxsz;
}
static void
encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
{
- int len = fh->size;
- __be32 *p;
-
- p = reserve_space(xdr, 8 + len);
- *p++ = cpu_to_be32(OP_PUTFH);
- xdr_encode_opaque(p, fh->data, len);
- hdr->nops++;
- hdr->replen += decode_putfh_maxsz;
+ encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr);
+ encode_string(xdr, fh->size, fh->data);
}
static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(OP_PUTROOTFH);
- hdr->nops++;
- hdr->replen += decode_putrootfh_maxsz;
+ encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr);
}
-static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid)
+static void encode_open_stateid(struct xdr_stream *xdr,
+ const struct nfs_open_context *ctx,
+ const struct nfs_lock_context *l_ctx,
+ fmode_t fmode,
+ int zero_seqid)
{
nfs4_stateid stateid;
- __be32 *p;
- p = reserve_space(xdr, NFS4_STATEID_SIZE);
if (ctx->state != NULL) {
- nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid);
+ nfs4_select_rw_stateid(&stateid, ctx->state,
+ fmode, l_ctx->lockowner, l_ctx->pid);
if (zero_seqid)
- stateid.stateid.seqid = 0;
- xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
+ stateid.seqid = 0;
+ encode_nfs4_stateid(xdr, &stateid);
} else
- xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
+ encode_nfs4_stateid(xdr, &zero_stateid);
}
static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
{
__be32 *p;
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(OP_READ);
-
- encode_stateid(xdr, args->context, args->lock_context,
- hdr->minorversion);
+ encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr);
+ encode_open_stateid(xdr, args->context, args->lock_context,
+ FMODE_READ, hdr->minorversion);
p = reserve_space(xdr, 12);
p = xdr_encode_hyper(p, args->offset);
*p = cpu_to_be32(args->count);
- hdr->nops++;
- hdr->replen += decode_read_maxsz;
}
static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
@@ -1551,7 +1529,7 @@ static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
FATTR4_WORD1_MOUNTED_ON_FILEID,
};
uint32_t dircount = readdir->count >> 1;
- __be32 *p;
+ __be32 *p, verf[2];
if (readdir->plus) {
attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
@@ -1566,80 +1544,54 @@ static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
attrs[0] |= FATTR4_WORD0_FILEID;
- p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20);
- *p++ = cpu_to_be32(OP_READDIR);
- p = xdr_encode_hyper(p, readdir->cookie);
- p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE);
+ encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr);
+ encode_uint64(xdr, readdir->cookie);
+ encode_nfs4_verifier(xdr, &readdir->verifier);
+ p = reserve_space(xdr, 20);
*p++ = cpu_to_be32(dircount);
*p++ = cpu_to_be32(readdir->count);
*p++ = cpu_to_be32(2);
*p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
*p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
- hdr->nops++;
- hdr->replen += decode_readdir_maxsz;
+ memcpy(verf, readdir->verifier.data, sizeof(verf));
dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
__func__,
(unsigned long long)readdir->cookie,
- ((u32 *)readdir->verifier.data)[0],
- ((u32 *)readdir->verifier.data)[1],
+ verf[0], verf[1],
attrs[0] & readdir->bitmask[0],
attrs[1] & readdir->bitmask[1]);
}
static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(OP_READLINK);
- hdr->nops++;
- hdr->replen += decode_readlink_maxsz;
+ encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr);
}
static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 8 + name->len);
- *p++ = cpu_to_be32(OP_REMOVE);
- xdr_encode_opaque(p, name->name, name->len);
- hdr->nops++;
- hdr->replen += decode_remove_maxsz;
+ encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr);
+ encode_string(xdr, name->len, name->name);
}
static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(OP_RENAME);
+ encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr);
encode_string(xdr, oldname->len, oldname->name);
encode_string(xdr, newname->len, newname->name);
- hdr->nops++;
- hdr->replen += decode_rename_maxsz;
}
-static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr)
+static void encode_renew(struct xdr_stream *xdr, clientid4 clid,
+ struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 12);
- *p++ = cpu_to_be32(OP_RENEW);
- xdr_encode_hyper(p, client_stateid->cl_clientid);
- hdr->nops++;
- hdr->replen += decode_renew_maxsz;
+ encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr);
+ encode_uint64(xdr, clid);
}
static void
encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(OP_RESTOREFH);
- hdr->nops++;
- hdr->replen += decode_restorefh_maxsz;
+ encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr);
}
static void
@@ -1647,9 +1599,8 @@ encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compoun
{
__be32 *p;
- p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
- *p++ = cpu_to_be32(OP_SETATTR);
- xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
+ encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr);
+ encode_nfs4_stateid(xdr, &zero_stateid);
p = reserve_space(xdr, 2*4);
*p++ = cpu_to_be32(1);
*p = cpu_to_be32(FATTR4_WORD0_ACL);
@@ -1657,30 +1608,18 @@ encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compoun
p = reserve_space(xdr, 4);
*p = cpu_to_be32(arg->acl_len);
xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
- hdr->nops++;
- hdr->replen += decode_setacl_maxsz;
}
static void
encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(OP_SAVEFH);
- hdr->nops++;
- hdr->replen += decode_savefh_maxsz;
+ encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr);
}
static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
- *p++ = cpu_to_be32(OP_SETATTR);
- xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE);
- hdr->nops++;
- hdr->replen += decode_setattr_maxsz;
+ encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr);
+ encode_nfs4_stateid(xdr, &arg->stateid);
encode_attrs(xdr, arg->iap, server);
}
@@ -1688,9 +1627,8 @@ static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclie
{
__be32 *p;
- p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE);
- *p++ = cpu_to_be32(OP_SETCLIENTID);
- xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE);
+ encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr);
+ encode_nfs4_verifier(xdr, setclientid->sc_verifier);
encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
p = reserve_space(xdr, 4);
@@ -1699,31 +1637,23 @@ static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclie
encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
p = reserve_space(xdr, 4);
*p = cpu_to_be32(setclientid->sc_cb_ident);
- hdr->nops++;
- hdr->replen += decode_setclientid_maxsz;
}
static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE);
- *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM);
- p = xdr_encode_hyper(p, arg->clientid);
- xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE);
- hdr->nops++;
- hdr->replen += decode_setclientid_confirm_maxsz;
+ encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM,
+ decode_setclientid_confirm_maxsz, hdr);
+ encode_uint64(xdr, arg->clientid);
+ encode_nfs4_verifier(xdr, &arg->confirm);
}
static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
{
__be32 *p;
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(OP_WRITE);
-
- encode_stateid(xdr, args->context, args->lock_context,
- hdr->minorversion);
+ encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr);
+ encode_open_stateid(xdr, args->context, args->lock_context,
+ FMODE_WRITE, hdr->minorversion);
p = reserve_space(xdr, 16);
p = xdr_encode_hyper(p, args->offset);
@@ -1731,32 +1661,18 @@ static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *arg
*p = cpu_to_be32(args->count);
xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
- hdr->nops++;
- hdr->replen += decode_write_maxsz;
}
static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
-
- *p++ = cpu_to_be32(OP_DELEGRETURN);
- xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
- hdr->nops++;
- hdr->replen += decode_delegreturn_maxsz;
+ encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr);
+ encode_nfs4_stateid(xdr, stateid);
}
static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
{
- int len = name->len;
- __be32 *p;
-
- p = reserve_space(xdr, 8 + len);
- *p++ = cpu_to_be32(OP_SECINFO);
- xdr_encode_opaque(p, name->name, len);
- hdr->nops++;
- hdr->replen += decode_secinfo_maxsz;
+ encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr);
+ encode_string(xdr, name->len, name->name);
}
#if defined(CONFIG_NFS_V4_1)
@@ -1766,19 +1682,39 @@ static void encode_exchange_id(struct xdr_stream *xdr,
struct compound_hdr *hdr)
{
__be32 *p;
+ char impl_name[NFS4_OPAQUE_LIMIT];
+ int len = 0;
- p = reserve_space(xdr, 4 + sizeof(args->verifier->data));
- *p++ = cpu_to_be32(OP_EXCHANGE_ID);
- xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data));
+ encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr);
+ encode_nfs4_verifier(xdr, args->verifier);
encode_string(xdr, args->id_len, args->id);
p = reserve_space(xdr, 12);
*p++ = cpu_to_be32(args->flags);
*p++ = cpu_to_be32(0); /* zero length state_protect4_a */
- *p = cpu_to_be32(0); /* zero length implementation id array */
- hdr->nops++;
- hdr->replen += decode_exchange_id_maxsz;
+
+ if (send_implementation_id &&
+ sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 &&
+ sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN)
+ <= NFS4_OPAQUE_LIMIT + 1)
+ len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s",
+ utsname()->sysname, utsname()->release,
+ utsname()->version, utsname()->machine);
+
+ if (len > 0) {
+ *p = cpu_to_be32(1); /* implementation id array length=1 */
+
+ encode_string(xdr,
+ sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1,
+ CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN);
+ encode_string(xdr, len, impl_name);
+ /* just send zeros for nii_date - the date is in nii_name */
+ p = reserve_space(xdr, 12);
+ p = xdr_encode_hyper(p, 0);
+ *p = cpu_to_be32(0);
+ } else
+ *p = cpu_to_be32(0); /* implementation id array length=0 */
}
static void encode_create_session(struct xdr_stream *xdr,
@@ -1801,8 +1737,8 @@ static void encode_create_session(struct xdr_stream *xdr,
len = scnprintf(machine_name, sizeof(machine_name), "%s",
clp->cl_ipaddr);
- p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
- *p++ = cpu_to_be32(OP_CREATE_SESSION);
+ encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr);
+ p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12);
p = xdr_encode_hyper(p, clp->cl_clientid);
*p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
*p++ = cpu_to_be32(args->flags); /*flags */
@@ -1835,33 +1771,22 @@ static void encode_create_session(struct xdr_stream *xdr,
*p++ = cpu_to_be32(0); /* UID */
*p++ = cpu_to_be32(0); /* GID */
*p = cpu_to_be32(0); /* No more gids */
- hdr->nops++;
- hdr->replen += decode_create_session_maxsz;
}
static void encode_destroy_session(struct xdr_stream *xdr,
struct nfs4_session *session,
struct compound_hdr *hdr)
{
- __be32 *p;
- p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN);
- *p++ = cpu_to_be32(OP_DESTROY_SESSION);
- xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
- hdr->nops++;
- hdr->replen += decode_destroy_session_maxsz;
+ encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr);
+ encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
}
static void encode_reclaim_complete(struct xdr_stream *xdr,
struct nfs41_reclaim_complete_args *args,
struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 8);
- *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE);
- *p++ = cpu_to_be32(args->one_fs);
- hdr->nops++;
- hdr->replen += decode_reclaim_complete_maxsz;
+ encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr);
+ encode_uint32(xdr, args->one_fs);
}
#endif /* CONFIG_NFS_V4_1 */
@@ -1883,8 +1808,7 @@ static void encode_sequence(struct xdr_stream *xdr,
WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
slot = tp->slots + args->sa_slotid;
- p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16);
- *p++ = cpu_to_be32(OP_SEQUENCE);
+ encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr);
/*
* Sessionid + seqid + slotid + max slotid + cache_this
@@ -1898,13 +1822,12 @@ static void encode_sequence(struct xdr_stream *xdr,
((u32 *)session->sess_id.data)[3],
slot->seq_nr, args->sa_slotid,
tp->highest_used_slotid, args->sa_cache_this);
+ p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16);
p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
*p++ = cpu_to_be32(slot->seq_nr);
*p++ = cpu_to_be32(args->sa_slotid);
*p++ = cpu_to_be32(tp->highest_used_slotid);
*p = cpu_to_be32(args->sa_cache_this);
- hdr->nops++;
- hdr->replen += decode_sequence_maxsz;
#endif /* CONFIG_NFS_V4_1 */
}
@@ -1919,14 +1842,12 @@ encode_getdevicelist(struct xdr_stream *xdr,
.data = "dummmmmy",
};
- p = reserve_space(xdr, 20);
- *p++ = cpu_to_be32(OP_GETDEVICELIST);
+ encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr);
+ p = reserve_space(xdr, 16);
*p++ = cpu_to_be32(args->layoutclass);
*p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM);
xdr_encode_hyper(p, 0ULL); /* cookie */
encode_nfs4_verifier(xdr, &dummy);
- hdr->nops++;
- hdr->replen += decode_getdevicelist_maxsz;
}
static void
@@ -1936,15 +1857,13 @@ encode_getdeviceinfo(struct xdr_stream *xdr,
{
__be32 *p;
- p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE);
- *p++ = cpu_to_be32(OP_GETDEVICEINFO);
+ encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr);
+ p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE);
p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
NFS4_DEVICEID4_SIZE);
*p++ = cpu_to_be32(args->pdev->layout_type);
*p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */
*p++ = cpu_to_be32(0); /* bitmap length 0 */
- hdr->nops++;
- hdr->replen += decode_getdeviceinfo_maxsz;
}
static void
@@ -1954,16 +1873,16 @@ encode_layoutget(struct xdr_stream *xdr,
{
__be32 *p;
- p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE);
- *p++ = cpu_to_be32(OP_LAYOUTGET);
+ encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr);
+ p = reserve_space(xdr, 36);
*p++ = cpu_to_be32(0); /* Signal layout available */
*p++ = cpu_to_be32(args->type);
*p++ = cpu_to_be32(args->range.iomode);
p = xdr_encode_hyper(p, args->range.offset);
p = xdr_encode_hyper(p, args->range.length);
p = xdr_encode_hyper(p, args->minlength);
- p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE);
- *p = cpu_to_be32(args->maxcount);
+ encode_nfs4_stateid(xdr, &args->stateid);
+ encode_uint32(xdr, args->maxcount);
dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
__func__,
@@ -1972,8 +1891,6 @@ encode_layoutget(struct xdr_stream *xdr,
(unsigned long)args->range.offset,
(unsigned long)args->range.length,
args->maxcount);
- hdr->nops++;
- hdr->replen += decode_layoutget_maxsz;
}
static int
@@ -1987,13 +1904,14 @@ encode_layoutcommit(struct xdr_stream *xdr,
dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
NFS_SERVER(args->inode)->pnfs_curr_ld->id);
- p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE);
- *p++ = cpu_to_be32(OP_LAYOUTCOMMIT);
+ encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr);
+ p = reserve_space(xdr, 20);
/* Only whole file layouts */
p = xdr_encode_hyper(p, 0); /* offset */
p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
- *p++ = cpu_to_be32(0); /* reclaim */
- p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE);
+ *p = cpu_to_be32(0); /* reclaim */
+ encode_nfs4_stateid(xdr, &args->stateid);
+ p = reserve_space(xdr, 20);
*p++ = cpu_to_be32(1); /* newoffset = TRUE */
p = xdr_encode_hyper(p, args->lastbytewritten);
*p++ = cpu_to_be32(0); /* Never send time_modify_changed */
@@ -2002,13 +1920,9 @@ encode_layoutcommit(struct xdr_stream *xdr,
if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit)
NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit(
NFS_I(inode)->layout, xdr, args);
- else {
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(0); /* no layout-type payload */
- }
+ else
+ encode_uint32(xdr, 0); /* no layout-type payload */
- hdr->nops++;
- hdr->replen += decode_layoutcommit_maxsz;
return 0;
}
@@ -2019,27 +1933,23 @@ encode_layoutreturn(struct xdr_stream *xdr,
{
__be32 *p;
- p = reserve_space(xdr, 20);
- *p++ = cpu_to_be32(OP_LAYOUTRETURN);
+ encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr);
+ p = reserve_space(xdr, 16);
*p++ = cpu_to_be32(0); /* reclaim. always 0 for now */
*p++ = cpu_to_be32(args->layout_type);
*p++ = cpu_to_be32(IOMODE_ANY);
*p = cpu_to_be32(RETURN_FILE);
- p = reserve_space(xdr, 16 + NFS4_STATEID_SIZE);
+ p = reserve_space(xdr, 16);
p = xdr_encode_hyper(p, 0);
p = xdr_encode_hyper(p, NFS4_MAX_UINT64);
spin_lock(&args->inode->i_lock);
- xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE);
+ encode_nfs4_stateid(xdr, &args->stateid);
spin_unlock(&args->inode->i_lock);
if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) {
NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn(
NFS_I(args->inode)->layout, xdr, args);
- } else {
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(0);
- }
- hdr->nops++;
- hdr->replen += decode_layoutreturn_maxsz;
+ } else
+ encode_uint32(xdr, 0);
}
static int
@@ -2047,12 +1957,8 @@ encode_secinfo_no_name(struct xdr_stream *xdr,
const struct nfs41_secinfo_no_name_args *args,
struct compound_hdr *hdr)
{
- __be32 *p;
- p = reserve_space(xdr, 8);
- *p++ = cpu_to_be32(OP_SECINFO_NO_NAME);
- *p++ = cpu_to_be32(args->style);
- hdr->nops++;
- hdr->replen += decode_secinfo_no_name_maxsz;
+ encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr);
+ encode_uint32(xdr, args->style);
return 0;
}
@@ -2060,26 +1966,17 @@ static void encode_test_stateid(struct xdr_stream *xdr,
struct nfs41_test_stateid_args *args,
struct compound_hdr *hdr)
{
- __be32 *p;
-
- p = reserve_space(xdr, 8 + NFS4_STATEID_SIZE);
- *p++ = cpu_to_be32(OP_TEST_STATEID);
- *p++ = cpu_to_be32(1);
- xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
- hdr->nops++;
- hdr->replen += decode_test_stateid_maxsz;
+ encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr);
+ encode_uint32(xdr, 1);
+ encode_nfs4_stateid(xdr, args->stateid);
}
static void encode_free_stateid(struct xdr_stream *xdr,
struct nfs41_free_stateid_args *args,
struct compound_hdr *hdr)
{
- __be32 *p;
- p = reserve_space(xdr, 4 + NFS4_STATEID_SIZE);
- *p++ = cpu_to_be32(OP_FREE_STATEID);
- xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
- hdr->nops++;
- hdr->replen += decode_free_stateid_maxsz;
+ encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr);
+ encode_nfs4_stateid(xdr, args->stateid);
}
#endif /* CONFIG_NFS_V4_1 */
@@ -2633,6 +2530,7 @@ static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fhandle, &hdr);
encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
+ FATTR4_WORD0_FH_EXPIRE_TYPE|
FATTR4_WORD0_LINK_SUPPORT|
FATTR4_WORD0_SYMLINK_SUPPORT|
FATTR4_WORD0_ACLSUPPORT, &hdr);
@@ -2650,7 +2548,7 @@ static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
};
encode_compound_hdr(xdr, req, &hdr);
- encode_renew(xdr, clp, &hdr);
+ encode_renew(xdr, clp->cl_clientid, &hdr);
encode_nops(&hdr);
}
@@ -3180,6 +3078,28 @@ out_overflow:
return -EIO;
}
+static int decode_attr_fh_expire_type(struct xdr_stream *xdr,
+ uint32_t *bitmap, uint32_t *type)
+{
+ __be32 *p;
+
+ *type = 0;
+ if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U)))
+ return -EIO;
+ if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) {
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(!p))
+ goto out_overflow;
+ *type = be32_to_cpup(p);
+ bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE;
+ }
+ dprintk("%s: expire type=0x%x\n", __func__, *type);
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
{
__be32 *p;
@@ -3513,16 +3433,17 @@ static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
n = be32_to_cpup(p);
if (n == 0)
goto root_path;
- dprintk("path ");
+ dprintk("pathname4: ");
path->ncomponents = 0;
while (path->ncomponents < n) {
struct nfs4_string *component = &path->components[path->ncomponents];
status = decode_opaque_inline(xdr, &component->len, &component->data);
if (unlikely(status != 0))
goto out_eio;
- if (path->ncomponents != n)
- dprintk("/");
- dprintk("%s", component->data);
+ ifdebug (XDR)
+ pr_cont("%s%.*s ",
+ (path->ncomponents != n ? "/ " : ""),
+ component->len, component->data);
if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
path->ncomponents++;
else {
@@ -3531,14 +3452,13 @@ static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
}
}
out:
- dprintk("\n");
return status;
root_path:
/* a root pathname is sent as a zero component4 */
path->ncomponents = 1;
path->components[0].len=0;
path->components[0].data=NULL;
- dprintk("path /\n");
+ dprintk("pathname4: /\n");
goto out;
out_eio:
dprintk(" status %d", status);
@@ -3560,7 +3480,11 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
status = 0;
if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
goto out;
- dprintk("%s: fsroot ", __func__);
+ status = -EIO;
+ /* Ignore borken servers that return unrequested attrs */
+ if (unlikely(res == NULL))
+ goto out;
+ dprintk("%s: fsroot:\n", __func__);
status = decode_pathname(xdr, &res->fs_path);
if (unlikely(status != 0))
goto out;
@@ -3581,7 +3505,7 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
m = be32_to_cpup(p);
loc->nservers = 0;
- dprintk("%s: servers ", __func__);
+ dprintk("%s: servers:\n", __func__);
while (loc->nservers < m) {
struct nfs4_string *server = &loc->servers[loc->nservers];
status = decode_opaque_inline(xdr, &server->len, &server->data);
@@ -3613,7 +3537,7 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
res->nlocations++;
}
if (res->nlocations != 0)
- status = NFS_ATTR_FATTR_V4_REFERRAL;
+ status = NFS_ATTR_FATTR_V4_LOCATIONS;
out:
dprintk("%s: fs_locations done, error = %d\n", __func__, status);
return status;
@@ -4157,7 +4081,7 @@ static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
{
- return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
+ return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
}
static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
@@ -4174,7 +4098,7 @@ static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
static int decode_verifier(struct xdr_stream *xdr, void *verifier)
{
- return decode_opaque_fixed(xdr, verifier, 8);
+ return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE);
}
static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
@@ -4224,6 +4148,9 @@ static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_re
goto xdr_error;
if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
goto xdr_error;
+ if ((status = decode_attr_fh_expire_type(xdr, bitmap,
+ &res->fh_expire_type)) != 0)
+ goto xdr_error;
if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
goto xdr_error;
if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
@@ -4294,6 +4221,7 @@ xdr_error:
static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
struct nfs_fattr *fattr, struct nfs_fh *fh,
+ struct nfs4_fs_locations *fs_loc,
const struct nfs_server *server)
{
int status;
@@ -4341,9 +4269,7 @@ static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
goto xdr_error;
fattr->valid |= status;
- status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
- struct nfs4_fs_locations,
- fattr));
+ status = decode_attr_fs_locations(xdr, bitmap, fs_loc);
if (status < 0)
goto xdr_error;
fattr->valid |= status;
@@ -4407,7 +4333,8 @@ xdr_error:
}
static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
- struct nfs_fh *fh, const struct nfs_server *server)
+ struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc,
+ const struct nfs_server *server)
{
__be32 *savep;
uint32_t attrlen,
@@ -4426,7 +4353,7 @@ static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fat
if (status < 0)
goto xdr_error;
- status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server);
+ status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server);
if (status < 0)
goto xdr_error;
@@ -4439,7 +4366,7 @@ xdr_error:
static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
const struct nfs_server *server)
{
- return decode_getfattr_generic(xdr, fattr, NULL, server);
+ return decode_getfattr_generic(xdr, fattr, NULL, NULL, server);
}
/*
@@ -4463,8 +4390,8 @@ static int decode_first_pnfs_layout_type(struct xdr_stream *xdr,
return 0;
}
if (num > 1)
- printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers "
- "per filesystem not supported\n", __func__);
+ printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout "
+ "drivers per filesystem not supported\n", __func__);
/* Decode and set first layout type, move xdr->p past unused types */
p = xdr_inline_decode(xdr, num * 4);
@@ -4863,17 +4790,16 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
size_t hdrlen;
u32 recvd, pglen = rcvbuf->page_len;
int status;
+ __be32 verf[2];
status = decode_op_hdr(xdr, OP_READDIR);
if (!status)
status = decode_verifier(xdr, readdir->verifier.data);
if (unlikely(status))
return status;
+ memcpy(verf, readdir->verifier.data, sizeof(verf));
dprintk("%s: verifier = %08x:%08x\n",
- __func__,
- ((u32 *)readdir->verifier.data)[0],
- ((u32 *)readdir->verifier.data)[1]);
-
+ __func__, verf[0], verf[1]);
hdrlen = (char *) xdr->p - (char *) iov->iov_base;
recvd = rcvbuf->len - hdrlen;
@@ -5120,7 +5046,7 @@ static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
goto out_overflow;
res->count = be32_to_cpup(p++);
res->verf->committed = be32_to_cpup(p++);
- memcpy(res->verf->verifier, p, 8);
+ memcpy(res->verf->verifier, p, NFS4_VERIFIER_SIZE);
return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
@@ -5214,6 +5140,7 @@ static int decode_exchange_id(struct xdr_stream *xdr,
char *dummy_str;
int status;
struct nfs_client *clp = res->client;
+ uint32_t impl_id_count;
status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
if (status)
@@ -5255,11 +5182,38 @@ static int decode_exchange_id(struct xdr_stream *xdr,
memcpy(res->server_scope->server_scope, dummy_str, dummy);
res->server_scope->server_scope_sz = dummy;
- /* Throw away Implementation id array */
- status = decode_opaque_inline(xdr, &dummy, &dummy_str);
- if (unlikely(status))
- return status;
+ /* Implementation Id */
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(!p))
+ goto out_overflow;
+ impl_id_count = be32_to_cpup(p++);
+
+ if (impl_id_count) {
+ /* nii_domain */
+ status = decode_opaque_inline(xdr, &dummy, &dummy_str);
+ if (unlikely(status))
+ return status;
+ if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
+ return -EIO;
+ memcpy(res->impl_id->domain, dummy_str, dummy);
+ /* nii_name */
+ status = decode_opaque_inline(xdr, &dummy, &dummy_str);
+ if (unlikely(status))
+ return status;
+ if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
+ return -EIO;
+ memcpy(res->impl_id->name, dummy_str, dummy);
+
+ /* nii_date */
+ p = xdr_inline_decode(xdr, 12);
+ if (unlikely(!p))
+ goto out_overflow;
+ p = xdr_decode_hyper(p, &res->impl_id->date.seconds);
+ res->impl_id->date.nseconds = be32_to_cpup(p);
+
+ /* if there's more than one entry, ignore the rest */
+ }
return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
@@ -5285,8 +5239,8 @@ static int decode_chan_attrs(struct xdr_stream *xdr,
attrs->max_reqs = be32_to_cpup(p++);
nr_attrs = be32_to_cpup(p);
if (unlikely(nr_attrs > 1)) {
- printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
- __func__, nr_attrs);
+ printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs "
+ "count %u\n", __func__, nr_attrs);
return -EINVAL;
}
if (nr_attrs == 1) {
@@ -5436,14 +5390,14 @@ static int decode_getdevicelist(struct xdr_stream *xdr,
p += 2;
/* Read verifier */
- p = xdr_decode_opaque_fixed(p, verftemp.verifier, 8);
+ p = xdr_decode_opaque_fixed(p, verftemp.verifier, NFS4_VERIFIER_SIZE);
res->num_devs = be32_to_cpup(p);
dprintk("%s: num_dev %d\n", __func__, res->num_devs);
if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) {
- printk(KERN_ERR "%s too many result dev_num %u\n",
+ printk(KERN_ERR "NFS: %s too many result dev_num %u\n",
__func__, res->num_devs);
return -EIO;
}
@@ -5537,11 +5491,14 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
status = decode_op_hdr(xdr, OP_LAYOUTGET);
if (status)
return status;
- p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE);
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(!p))
+ goto out_overflow;
+ res->return_on_close = be32_to_cpup(p);
+ decode_stateid(xdr, &res->stateid);
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(!p))
goto out_overflow;
- res->return_on_close = be32_to_cpup(p++);
- p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE);
layout_count = be32_to_cpup(p);
if (!layout_count) {
dprintk("%s: server responded with empty layout array\n",
@@ -5666,7 +5623,8 @@ static int decode_test_stateid(struct xdr_stream *xdr,
if (unlikely(!p))
goto out_overflow;
res->status = be32_to_cpup(p++);
- return res->status;
+
+ return status;
out_overflow:
print_overflow_msg(__func__, xdr);
out:
@@ -6583,8 +6541,9 @@ static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
if (status)
goto out;
xdr_enter_page(xdr, PAGE_SIZE);
- status = decode_getfattr(xdr, &res->fs_locations->fattr,
- res->fs_locations->server);
+ status = decode_getfattr_generic(xdr, &res->fs_locations->fattr,
+ NULL, res->fs_locations,
+ res->fs_locations->server);
out:
return status;
}
@@ -6964,7 +6923,7 @@ int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
goto out_overflow;
if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
- entry->server) < 0)
+ NULL, entry->server) < 0)
goto out_overflow;
if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
entry->ino = entry->fattr->mounted_on_fileid;
@@ -7112,7 +7071,7 @@ struct rpc_procinfo nfs4_procedures[] = {
#endif /* CONFIG_NFS_V4_1 */
};
-struct rpc_version nfs_version4 = {
+const struct rpc_version nfs_version4 = {
.number = 4,
.nrprocs = ARRAY_SIZE(nfs4_procedures),
.procs = nfs4_procedures
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
index c4744e1d513c..cd3c910d2d12 100644
--- a/fs/nfs/nfsroot.c
+++ b/fs/nfs/nfsroot.c
@@ -104,7 +104,7 @@ static char nfs_export_path[NFS_MAXPATHLEN + 1] __initdata = "";
/* server:export path string passed to super.c */
static char nfs_root_device[NFS_MAXPATHLEN + 1] __initdata = "";
-#ifdef RPC_DEBUG
+#ifdef NFS_DEBUG
/*
* When the "nfsrootdebug" kernel command line option is specified,
* enable debugging messages for NFSROOT.
diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c
index 55d01280a609..4bff4a3dab46 100644
--- a/fs/nfs/objlayout/objio_osd.c
+++ b/fs/nfs/objlayout/objio_osd.c
@@ -137,6 +137,7 @@ static int objio_devices_lookup(struct pnfs_layout_hdr *pnfslay,
struct objio_dev_ent *ode;
struct osd_dev *od;
struct osd_dev_info odi;
+ bool retry_flag = true;
int err;
ode = _dev_list_find(NFS_SERVER(pnfslay->plh_inode), d_id);
@@ -171,10 +172,18 @@ static int objio_devices_lookup(struct pnfs_layout_hdr *pnfslay,
goto out;
}
+retry_lookup:
od = osduld_info_lookup(&odi);
if (unlikely(IS_ERR(od))) {
err = PTR_ERR(od);
dprintk("%s: osduld_info_lookup => %d\n", __func__, err);
+ if (err == -ENODEV && retry_flag) {
+ err = objlayout_autologin(deviceaddr);
+ if (likely(!err)) {
+ retry_flag = false;
+ goto retry_lookup;
+ }
+ }
goto out;
}
@@ -205,25 +214,36 @@ static void copy_single_comp(struct ore_components *oc, unsigned c,
int __alloc_objio_seg(unsigned numdevs, gfp_t gfp_flags,
struct objio_segment **pseg)
{
- struct __alloc_objio_segment {
- struct objio_segment olseg;
- struct ore_dev *ods[numdevs];
- struct ore_comp comps[numdevs];
- } *aolseg;
-
- aolseg = kzalloc(sizeof(*aolseg), gfp_flags);
- if (unlikely(!aolseg)) {
+/* This is the in memory structure of the objio_segment
+ *
+ * struct __alloc_objio_segment {
+ * struct objio_segment olseg;
+ * struct ore_dev *ods[numdevs];
+ * struct ore_comp comps[numdevs];
+ * } *aolseg;
+ * NOTE: The code as above compiles and runs perfectly. It is elegant,
+ * type safe and compact. At some Past time Linus has decided he does not
+ * like variable length arrays, For the sake of this principal we uglify
+ * the code as below.
+ */
+ struct objio_segment *lseg;
+ size_t lseg_size = sizeof(*lseg) +
+ numdevs * sizeof(lseg->oc.ods[0]) +
+ numdevs * sizeof(*lseg->oc.comps);
+
+ lseg = kzalloc(lseg_size, gfp_flags);
+ if (unlikely(!lseg)) {
dprintk("%s: Faild allocation numdevs=%d size=%zd\n", __func__,
- numdevs, sizeof(*aolseg));
+ numdevs, lseg_size);
return -ENOMEM;
}
- aolseg->olseg.oc.numdevs = numdevs;
- aolseg->olseg.oc.single_comp = EC_MULTPLE_COMPS;
- aolseg->olseg.oc.comps = aolseg->comps;
- aolseg->olseg.oc.ods = aolseg->ods;
+ lseg->oc.numdevs = numdevs;
+ lseg->oc.single_comp = EC_MULTPLE_COMPS;
+ lseg->oc.ods = (void *)(lseg + 1);
+ lseg->oc.comps = (void *)(lseg->oc.ods + numdevs);
- *pseg = &aolseg->olseg;
+ *pseg = lseg;
return 0;
}
@@ -582,10 +602,10 @@ objlayout_init(void)
if (ret)
printk(KERN_INFO
- "%s: Registering OSD pNFS Layout Driver failed: error=%d\n",
+ "NFS: %s: Registering OSD pNFS Layout Driver failed: error=%d\n",
__func__, ret);
else
- printk(KERN_INFO "%s: Registered OSD pNFS Layout Driver\n",
+ printk(KERN_INFO "NFS: %s: Registered OSD pNFS Layout Driver\n",
__func__);
return ret;
}
@@ -594,7 +614,7 @@ static void __exit
objlayout_exit(void)
{
pnfs_unregister_layoutdriver(&objlayout_type);
- printk(KERN_INFO "%s: Unregistered OSD pNFS Layout Driver\n",
+ printk(KERN_INFO "NFS: %s: Unregistered OSD pNFS Layout Driver\n",
__func__);
}
diff --git a/fs/nfs/objlayout/objlayout.c b/fs/nfs/objlayout/objlayout.c
index b3c29039f5b8..8d45f1c318ce 100644
--- a/fs/nfs/objlayout/objlayout.c
+++ b/fs/nfs/objlayout/objlayout.c
@@ -37,6 +37,9 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#include <linux/kmod.h>
+#include <linux/moduleparam.h>
+#include <linux/ratelimit.h>
#include <scsi/osd_initiator.h>
#include "objlayout.h"
@@ -156,7 +159,7 @@ last_byte_offset(u64 start, u64 len)
return end > start ? end - 1 : NFS4_MAX_UINT64;
}
-void _fix_verify_io_params(struct pnfs_layout_segment *lseg,
+static void _fix_verify_io_params(struct pnfs_layout_segment *lseg,
struct page ***p_pages, unsigned *p_pgbase,
u64 offset, unsigned long count)
{
@@ -490,9 +493,9 @@ encode_accumulated_error(struct objlayout *objlay, __be32 *p)
if (!ioerr->oer_errno)
continue;
- printk(KERN_ERR "%s: err[%d]: errno=%d is_write=%d "
- "dev(%llx:%llx) par=0x%llx obj=0x%llx "
- "offset=0x%llx length=0x%llx\n",
+ printk(KERN_ERR "NFS: %s: err[%d]: errno=%d "
+ "is_write=%d dev(%llx:%llx) par=0x%llx "
+ "obj=0x%llx offset=0x%llx length=0x%llx\n",
__func__, i, ioerr->oer_errno,
ioerr->oer_iswrite,
_DEVID_LO(&ioerr->oer_component.oid_device_id),
@@ -651,3 +654,134 @@ void objlayout_put_deviceinfo(struct pnfs_osd_deviceaddr *deviceaddr)
__free_page(odi->page);
kfree(odi);
}
+
+enum {
+ OBJLAYOUT_MAX_URI_LEN = 256, OBJLAYOUT_MAX_OSDNAME_LEN = 64,
+ OBJLAYOUT_MAX_SYSID_HEX_LEN = OSD_SYSTEMID_LEN * 2 + 1,
+ OSD_LOGIN_UPCALL_PATHLEN = 256
+};
+
+static char osd_login_prog[OSD_LOGIN_UPCALL_PATHLEN] = "/sbin/osd_login";
+
+module_param_string(osd_login_prog, osd_login_prog, sizeof(osd_login_prog),
+ 0600);
+MODULE_PARM_DESC(osd_login_prog, "Path to the osd_login upcall program");
+
+struct __auto_login {
+ char uri[OBJLAYOUT_MAX_URI_LEN];
+ char osdname[OBJLAYOUT_MAX_OSDNAME_LEN];
+ char systemid_hex[OBJLAYOUT_MAX_SYSID_HEX_LEN];
+};
+
+static int __objlayout_upcall(struct __auto_login *login)
+{
+ static char *envp[] = { "HOME=/",
+ "TERM=linux",
+ "PATH=/sbin:/usr/sbin:/bin:/usr/bin",
+ NULL
+ };
+ char *argv[8];
+ int ret;
+
+ if (unlikely(!osd_login_prog[0])) {
+ dprintk("%s: osd_login_prog is disabled\n", __func__);
+ return -EACCES;
+ }
+
+ dprintk("%s uri: %s\n", __func__, login->uri);
+ dprintk("%s osdname %s\n", __func__, login->osdname);
+ dprintk("%s systemid_hex %s\n", __func__, login->systemid_hex);
+
+ argv[0] = (char *)osd_login_prog;
+ argv[1] = "-u";
+ argv[2] = login->uri;
+ argv[3] = "-o";
+ argv[4] = login->osdname;
+ argv[5] = "-s";
+ argv[6] = login->systemid_hex;
+ argv[7] = NULL;
+
+ ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
+ /*
+ * Disable the upcall mechanism if we're getting an ENOENT or
+ * EACCES error. The admin can re-enable it on the fly by using
+ * sysfs to set the objlayoutdriver.osd_login_prog module parameter once
+ * the problem has been fixed.
+ */
+ if (ret == -ENOENT || ret == -EACCES) {
+ printk(KERN_ERR "PNFS-OBJ: %s was not found please set "
+ "objlayoutdriver.osd_login_prog kernel parameter!\n",
+ osd_login_prog);
+ osd_login_prog[0] = '\0';
+ }
+ dprintk("%s %s return value: %d\n", __func__, osd_login_prog, ret);
+
+ return ret;
+}
+
+/* Assume dest is all zeros */
+static void __copy_nfsS_and_zero_terminate(struct nfs4_string s,
+ char *dest, int max_len,
+ const char *var_name)
+{
+ if (!s.len)
+ return;
+
+ if (s.len >= max_len) {
+ pr_warn_ratelimited(
+ "objlayout_autologin: %s: s.len(%d) >= max_len(%d)",
+ var_name, s.len, max_len);
+ s.len = max_len - 1; /* space for null terminator */
+ }
+
+ memcpy(dest, s.data, s.len);
+}
+
+/* Assume sysid is all zeros */
+static void _sysid_2_hex(struct nfs4_string s,
+ char sysid[OBJLAYOUT_MAX_SYSID_HEX_LEN])
+{
+ int i;
+ char *cur;
+
+ if (!s.len)
+ return;
+
+ if (s.len != OSD_SYSTEMID_LEN) {
+ pr_warn_ratelimited(
+ "objlayout_autologin: systemid_len(%d) != OSD_SYSTEMID_LEN",
+ s.len);
+ if (s.len > OSD_SYSTEMID_LEN)
+ s.len = OSD_SYSTEMID_LEN;
+ }
+
+ cur = sysid;
+ for (i = 0; i < s.len; i++)
+ cur = hex_byte_pack(cur, s.data[i]);
+}
+
+int objlayout_autologin(struct pnfs_osd_deviceaddr *deviceaddr)
+{
+ int rc;
+ struct __auto_login login;
+
+ if (!deviceaddr->oda_targetaddr.ota_netaddr.r_addr.len)
+ return -ENODEV;
+
+ memset(&login, 0, sizeof(login));
+ __copy_nfsS_and_zero_terminate(
+ deviceaddr->oda_targetaddr.ota_netaddr.r_addr,
+ login.uri, sizeof(login.uri), "URI");
+
+ __copy_nfsS_and_zero_terminate(
+ deviceaddr->oda_osdname,
+ login.osdname, sizeof(login.osdname), "OSDNAME");
+
+ _sysid_2_hex(deviceaddr->oda_systemid, login.systemid_hex);
+
+ rc = __objlayout_upcall(&login);
+ if (rc > 0) /* script returns positive values */
+ rc = -ENODEV;
+
+ return rc;
+}
diff --git a/fs/nfs/objlayout/objlayout.h b/fs/nfs/objlayout/objlayout.h
index 8ec34727ed21..880ba086be94 100644
--- a/fs/nfs/objlayout/objlayout.h
+++ b/fs/nfs/objlayout/objlayout.h
@@ -184,4 +184,6 @@ extern void objlayout_encode_layoutreturn(
struct xdr_stream *,
const struct nfs4_layoutreturn_args *);
+extern int objlayout_autologin(struct pnfs_osd_deviceaddr *deviceaddr);
+
#endif /* _OBJLAYOUT_H */
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 5668f7c54c41..d21fceaa9f62 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -13,6 +13,7 @@
#include <linux/file.h>
#include <linux/sched.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/nfs.h>
#include <linux/nfs3.h>
#include <linux/nfs4.h>
#include <linux/nfs_page.h>
@@ -106,36 +107,6 @@ void nfs_unlock_request(struct nfs_page *req)
nfs_release_request(req);
}
-/**
- * nfs_set_page_tag_locked - Tag a request as locked
- * @req:
- */
-int nfs_set_page_tag_locked(struct nfs_page *req)
-{
- if (!nfs_lock_request_dontget(req))
- return 0;
- if (test_bit(PG_MAPPED, &req->wb_flags))
- radix_tree_tag_set(&NFS_I(req->wb_context->dentry->d_inode)->nfs_page_tree, req->wb_index, NFS_PAGE_TAG_LOCKED);
- return 1;
-}
-
-/**
- * nfs_clear_page_tag_locked - Clear request tag and wake up sleepers
- */
-void nfs_clear_page_tag_locked(struct nfs_page *req)
-{
- if (test_bit(PG_MAPPED, &req->wb_flags)) {
- struct inode *inode = req->wb_context->dentry->d_inode;
- struct nfs_inode *nfsi = NFS_I(inode);
-
- spin_lock(&inode->i_lock);
- radix_tree_tag_clear(&nfsi->nfs_page_tree, req->wb_index, NFS_PAGE_TAG_LOCKED);
- nfs_unlock_request(req);
- spin_unlock(&inode->i_lock);
- } else
- nfs_unlock_request(req);
-}
-
/*
* nfs_clear_request - Free up all resources allocated to the request
* @req:
@@ -425,67 +396,6 @@ void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *desc, pgoff_t index)
}
}
-#define NFS_SCAN_MAXENTRIES 16
-/**
- * nfs_scan_list - Scan a list for matching requests
- * @nfsi: NFS inode
- * @dst: Destination list
- * @idx_start: lower bound of page->index to scan
- * @npages: idx_start + npages sets the upper bound to scan.
- * @tag: tag to scan for
- *
- * Moves elements from one of the inode request lists.
- * If the number of requests is set to 0, the entire address_space
- * starting at index idx_start, is scanned.
- * The requests are *not* checked to ensure that they form a contiguous set.
- * You must be holding the inode's i_lock when calling this function
- */
-int nfs_scan_list(struct nfs_inode *nfsi,
- struct list_head *dst, pgoff_t idx_start,
- unsigned int npages, int tag)
-{
- struct nfs_page *pgvec[NFS_SCAN_MAXENTRIES];
- struct nfs_page *req;
- pgoff_t idx_end;
- int found, i;
- int res;
- struct list_head *list;
-
- res = 0;
- if (npages == 0)
- idx_end = ~0;
- else
- idx_end = idx_start + npages - 1;
-
- for (;;) {
- found = radix_tree_gang_lookup_tag(&nfsi->nfs_page_tree,
- (void **)&pgvec[0], idx_start,
- NFS_SCAN_MAXENTRIES, tag);
- if (found <= 0)
- break;
- for (i = 0; i < found; i++) {
- req = pgvec[i];
- if (req->wb_index > idx_end)
- goto out;
- idx_start = req->wb_index + 1;
- if (nfs_set_page_tag_locked(req)) {
- kref_get(&req->wb_kref);
- radix_tree_tag_clear(&nfsi->nfs_page_tree,
- req->wb_index, tag);
- list = pnfs_choose_commit_list(req, dst);
- nfs_list_add_request(req, list);
- res++;
- if (res == INT_MAX)
- goto out;
- }
- }
- /* for latency reduction */
- cond_resched_lock(&nfsi->vfs_inode.i_lock);
- }
-out:
- return res;
-}
-
int __init nfs_init_nfspagecache(void)
{
nfs_page_cachep = kmem_cache_create("nfs_page",
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 17149a490065..b5d451586943 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -101,8 +101,8 @@ set_pnfs_layoutdriver(struct nfs_server *server, const struct nfs_fh *mntfh,
goto out_no_driver;
if (!(server->nfs_client->cl_exchange_flags &
(EXCHGID4_FLAG_USE_NON_PNFS | EXCHGID4_FLAG_USE_PNFS_MDS))) {
- printk(KERN_ERR "%s: id %u cl_exchange_flags 0x%x\n", __func__,
- id, server->nfs_client->cl_exchange_flags);
+ printk(KERN_ERR "NFS: %s: id %u cl_exchange_flags 0x%x\n",
+ __func__, id, server->nfs_client->cl_exchange_flags);
goto out_no_driver;
}
ld_type = find_pnfs_driver(id);
@@ -122,8 +122,8 @@ set_pnfs_layoutdriver(struct nfs_server *server, const struct nfs_fh *mntfh,
server->pnfs_curr_ld = ld_type;
if (ld_type->set_layoutdriver
&& ld_type->set_layoutdriver(server, mntfh)) {
- printk(KERN_ERR "%s: Error initializing pNFS layout driver %u.\n",
- __func__, id);
+ printk(KERN_ERR "NFS: %s: Error initializing pNFS layout "
+ "driver %u.\n", __func__, id);
module_put(ld_type->owner);
goto out_no_driver;
}
@@ -143,11 +143,11 @@ pnfs_register_layoutdriver(struct pnfs_layoutdriver_type *ld_type)
struct pnfs_layoutdriver_type *tmp;
if (ld_type->id == 0) {
- printk(KERN_ERR "%s id 0 is reserved\n", __func__);
+ printk(KERN_ERR "NFS: %s id 0 is reserved\n", __func__);
return status;
}
if (!ld_type->alloc_lseg || !ld_type->free_lseg) {
- printk(KERN_ERR "%s Layout driver must provide "
+ printk(KERN_ERR "NFS: %s Layout driver must provide "
"alloc_lseg and free_lseg.\n", __func__);
return status;
}
@@ -160,7 +160,7 @@ pnfs_register_layoutdriver(struct pnfs_layoutdriver_type *ld_type)
dprintk("%s Registering id:%u name:%s\n", __func__, ld_type->id,
ld_type->name);
} else {
- printk(KERN_ERR "%s Module with id %d already loaded!\n",
+ printk(KERN_ERR "NFS: %s Module with id %d already loaded!\n",
__func__, ld_type->id);
}
spin_unlock(&pnfs_spinlock);
@@ -496,12 +496,12 @@ pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new,
{
u32 oldseq, newseq;
- oldseq = be32_to_cpu(lo->plh_stateid.stateid.seqid);
- newseq = be32_to_cpu(new->stateid.seqid);
+ oldseq = be32_to_cpu(lo->plh_stateid.seqid);
+ newseq = be32_to_cpu(new->seqid);
if ((int)(newseq - oldseq) > 0) {
- memcpy(&lo->plh_stateid, &new->stateid, sizeof(new->stateid));
+ nfs4_stateid_copy(&lo->plh_stateid, new);
if (update_barrier) {
- u32 new_barrier = be32_to_cpu(new->stateid.seqid);
+ u32 new_barrier = be32_to_cpu(new->seqid);
if ((int)(new_barrier - lo->plh_barrier))
lo->plh_barrier = new_barrier;
@@ -525,7 +525,7 @@ pnfs_layoutgets_blocked(struct pnfs_layout_hdr *lo, nfs4_stateid *stateid,
int lget)
{
if ((stateid) &&
- (int)(lo->plh_barrier - be32_to_cpu(stateid->stateid.seqid)) >= 0)
+ (int)(lo->plh_barrier - be32_to_cpu(stateid->seqid)) >= 0)
return true;
return lo->plh_block_lgets ||
test_bit(NFS_LAYOUT_DESTROYED, &lo->plh_flags) ||
@@ -549,11 +549,10 @@ pnfs_choose_layoutget_stateid(nfs4_stateid *dst, struct pnfs_layout_hdr *lo,
do {
seq = read_seqbegin(&open_state->seqlock);
- memcpy(dst->data, open_state->stateid.data,
- sizeof(open_state->stateid.data));
+ nfs4_stateid_copy(dst, &open_state->stateid);
} while (read_seqretry(&open_state->seqlock, seq));
} else
- memcpy(dst->data, lo->plh_stateid.data, sizeof(lo->plh_stateid.data));
+ nfs4_stateid_copy(dst, &lo->plh_stateid);
spin_unlock(&lo->plh_inode->i_lock);
dprintk("<-- %s\n", __func__);
return status;
@@ -590,7 +589,7 @@ send_layoutget(struct pnfs_layout_hdr *lo,
max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz;
max_pages = max_resp_sz >> PAGE_SHIFT;
- pages = kzalloc(max_pages * sizeof(struct page *), gfp_flags);
+ pages = kcalloc(max_pages, sizeof(struct page *), gfp_flags);
if (!pages)
goto out_err_free;
@@ -760,7 +759,7 @@ bool pnfs_roc_drain(struct inode *ino, u32 *barrier)
}
if (!found) {
struct pnfs_layout_hdr *lo = nfsi->layout;
- u32 current_seqid = be32_to_cpu(lo->plh_stateid.stateid.seqid);
+ u32 current_seqid = be32_to_cpu(lo->plh_stateid.seqid);
/* Since close does not return a layout stateid for use as
* a barrier, we choose the worst-case barrier.
@@ -966,8 +965,7 @@ pnfs_update_layout(struct inode *ino,
}
/* Do we even need to bother with this? */
- if (test_bit(NFS4CLNT_LAYOUTRECALL, &clp->cl_state) ||
- test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) {
+ if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) {
dprintk("%s matches recall, use MDS\n", __func__);
goto out_unlock;
}
@@ -1032,7 +1030,6 @@ pnfs_layout_process(struct nfs4_layoutget *lgp)
struct nfs4_layoutget_res *res = &lgp->res;
struct pnfs_layout_segment *lseg;
struct inode *ino = lo->plh_inode;
- struct nfs_client *clp = NFS_SERVER(ino)->nfs_client;
int status = 0;
/* Inject layout blob into I/O device driver */
@@ -1048,8 +1045,7 @@ pnfs_layout_process(struct nfs4_layoutget *lgp)
}
spin_lock(&ino->i_lock);
- if (test_bit(NFS4CLNT_LAYOUTRECALL, &clp->cl_state) ||
- test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) {
+ if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) {
dprintk("%s forget reply due to recall\n", __func__);
goto out_forget_reply;
}
@@ -1214,6 +1210,7 @@ void pnfs_ld_write_done(struct nfs_write_data *data)
}
data->task.tk_status = pnfs_write_done_resend_to_mds(data->inode, &data->pages);
}
+ put_lseg(data->lseg);
data->mds_ops->rpc_release(data);
}
EXPORT_SYMBOL_GPL(pnfs_ld_write_done);
@@ -1227,6 +1224,7 @@ pnfs_write_through_mds(struct nfs_pageio_descriptor *desc,
nfs_list_add_request(data->req, &desc->pg_list);
nfs_pageio_reset_write_mds(desc);
desc->pg_recoalesce = 1;
+ put_lseg(data->lseg);
nfs_writedata_release(data);
}
@@ -1327,6 +1325,7 @@ void pnfs_ld_read_done(struct nfs_read_data *data)
data->mds_ops->rpc_call_done(&data->task, data);
} else
pnfs_ld_handle_read_error(data);
+ put_lseg(data->lseg);
data->mds_ops->rpc_release(data);
}
EXPORT_SYMBOL_GPL(pnfs_ld_read_done);
@@ -1530,8 +1529,7 @@ pnfs_layoutcommit_inode(struct inode *inode, bool sync)
end_pos = nfsi->layout->plh_lwb;
nfsi->layout->plh_lwb = 0;
- memcpy(&data->args.stateid.data, nfsi->layout->plh_stateid.data,
- sizeof(nfsi->layout->plh_stateid.data));
+ nfs4_stateid_copy(&data->args.stateid, &nfsi->layout->plh_stateid);
spin_unlock(&inode->i_lock);
data->args.inode = inode;
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 53d593a0a4f2..442ebf68eeec 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -94,11 +94,10 @@ struct pnfs_layoutdriver_type {
const struct nfs_pageio_ops *pg_read_ops;
const struct nfs_pageio_ops *pg_write_ops;
- /* Returns true if layoutdriver wants to divert this request to
- * driver's commit routine.
- */
- bool (*mark_pnfs_commit)(struct pnfs_layout_segment *lseg);
- struct list_head * (*choose_commit_list) (struct nfs_page *req);
+ void (*mark_request_commit) (struct nfs_page *req,
+ struct pnfs_layout_segment *lseg);
+ void (*clear_request_commit) (struct nfs_page *req);
+ int (*scan_commit_lists) (struct inode *inode, int max, spinlock_t *lock);
int (*commit_pagelist)(struct inode *inode, struct list_head *mds_pages, int how);
/*
@@ -229,7 +228,6 @@ struct nfs4_deviceid_node {
atomic_t ref;
};
-void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id);
struct nfs4_deviceid_node *nfs4_find_get_deviceid(const struct pnfs_layoutdriver_type *, const struct nfs_client *, const struct nfs4_deviceid *);
void nfs4_delete_deviceid(const struct pnfs_layoutdriver_type *, const struct nfs_client *, const struct nfs4_deviceid *);
void nfs4_init_deviceid_node(struct nfs4_deviceid_node *,
@@ -262,20 +260,6 @@ static inline int pnfs_enabled_sb(struct nfs_server *nfss)
return nfss->pnfs_curr_ld != NULL;
}
-static inline void
-pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
-{
- if (lseg) {
- struct pnfs_layoutdriver_type *ld;
-
- ld = NFS_SERVER(req->wb_page->mapping->host)->pnfs_curr_ld;
- if (ld->mark_pnfs_commit && ld->mark_pnfs_commit(lseg)) {
- set_bit(PG_PNFS_COMMIT, &req->wb_flags);
- req->wb_commit_lseg = get_lseg(lseg);
- }
- }
-}
-
static inline int
pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
{
@@ -284,27 +268,42 @@ pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
return NFS_SERVER(inode)->pnfs_curr_ld->commit_pagelist(inode, mds_pages, how);
}
-static inline struct list_head *
-pnfs_choose_commit_list(struct nfs_page *req, struct list_head *mds)
+static inline bool
+pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
{
- struct list_head *rv;
+ struct inode *inode = req->wb_context->dentry->d_inode;
+ struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
- if (test_and_clear_bit(PG_PNFS_COMMIT, &req->wb_flags)) {
- struct inode *inode = req->wb_commit_lseg->pls_layout->plh_inode;
+ if (lseg == NULL || ld->mark_request_commit == NULL)
+ return false;
+ ld->mark_request_commit(req, lseg);
+ return true;
+}
- set_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags);
- rv = NFS_SERVER(inode)->pnfs_curr_ld->choose_commit_list(req);
- /* matched by ref taken when PG_PNFS_COMMIT is set */
- put_lseg(req->wb_commit_lseg);
- } else
- rv = mds;
- return rv;
+static inline bool
+pnfs_clear_request_commit(struct nfs_page *req)
+{
+ struct inode *inode = req->wb_context->dentry->d_inode;
+ struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
+
+ if (ld == NULL || ld->clear_request_commit == NULL)
+ return false;
+ ld->clear_request_commit(req);
+ return true;
}
-static inline void pnfs_clear_request_commit(struct nfs_page *req)
+static inline int
+pnfs_scan_commit_lists(struct inode *inode, int max, spinlock_t *lock)
{
- if (test_and_clear_bit(PG_PNFS_COMMIT, &req->wb_flags))
- put_lseg(req->wb_commit_lseg);
+ struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld;
+ int ret;
+
+ if (ld == NULL || ld->scan_commit_lists == NULL)
+ return 0;
+ ret = ld->scan_commit_lists(inode, max, lock);
+ if (ret != 0)
+ set_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags);
+ return ret;
}
/* Should the pNFS client commit and return the layout upon a setattr */
@@ -328,6 +327,13 @@ static inline int pnfs_return_layout(struct inode *ino)
return 0;
}
+#ifdef NFS_DEBUG
+void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id);
+#else
+static inline void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id)
+{
+}
+#endif /* NFS_DEBUG */
#else /* CONFIG_NFS_V4_1 */
static inline void pnfs_destroy_all_layouts(struct nfs_client *clp)
@@ -400,35 +406,35 @@ static inline bool pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, st
return false;
}
-static inline void
-pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
-{
-}
-
static inline int
pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how)
{
return PNFS_NOT_ATTEMPTED;
}
-static inline struct list_head *
-pnfs_choose_commit_list(struct nfs_page *req, struct list_head *mds)
+static inline bool
+pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
{
- return mds;
+ return false;
}
-static inline void pnfs_clear_request_commit(struct nfs_page *req)
+static inline bool
+pnfs_clear_request_commit(struct nfs_page *req)
{
+ return false;
}
-static inline int pnfs_layoutcommit_inode(struct inode *inode, bool sync)
+static inline int
+pnfs_scan_commit_lists(struct inode *inode, int max, spinlock_t *lock)
{
return 0;
}
-static inline void nfs4_deviceid_purge_client(struct nfs_client *ncl)
+static inline int pnfs_layoutcommit_inode(struct inode *inode, bool sync)
{
+ return 0;
}
+
#endif /* CONFIG_NFS_V4_1 */
#endif /* FS_NFS_PNFS_H */
diff --git a/fs/nfs/pnfs_dev.c b/fs/nfs/pnfs_dev.c
index 4f359d2a26eb..73f701f1f4d3 100644
--- a/fs/nfs/pnfs_dev.c
+++ b/fs/nfs/pnfs_dev.c
@@ -43,6 +43,7 @@
static struct hlist_head nfs4_deviceid_cache[NFS4_DEVICE_ID_HASH_SIZE];
static DEFINE_SPINLOCK(nfs4_deviceid_lock);
+#ifdef NFS_DEBUG
void
nfs4_print_deviceid(const struct nfs4_deviceid *id)
{
@@ -52,6 +53,7 @@ nfs4_print_deviceid(const struct nfs4_deviceid *id)
p[0], p[1], p[2], p[3]);
}
EXPORT_SYMBOL_GPL(nfs4_print_deviceid);
+#endif
static inline u32
nfs4_deviceid_hash(const struct nfs4_deviceid *id)
@@ -92,7 +94,7 @@ _lookup_deviceid(const struct pnfs_layoutdriver_type *ld,
* @clp nfs_client associated with deviceid
* @id deviceid to look up
*/
-struct nfs4_deviceid_node *
+static struct nfs4_deviceid_node *
_find_get_deviceid(const struct pnfs_layoutdriver_type *ld,
const struct nfs_client *clp, const struct nfs4_deviceid *id,
long hash)
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index 0c672588fe5a..b63b6f4d14fb 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -358,6 +358,11 @@ nfs_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE];
}
+static void nfs_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
+{
+ rpc_call_start(task);
+}
+
static int nfs_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
if (nfs_async_handle_expired_key(task))
@@ -372,6 +377,11 @@ nfs_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
msg->rpc_proc = &nfs_procedures[NFSPROC_RENAME];
}
+static void nfs_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
+{
+ rpc_call_start(task);
+}
+
static int
nfs_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
struct inode *new_dir)
@@ -651,6 +661,11 @@ static void nfs_proc_read_setup(struct nfs_read_data *data, struct rpc_message *
msg->rpc_proc = &nfs_procedures[NFSPROC_READ];
}
+static void nfs_proc_read_rpc_prepare(struct rpc_task *task, struct nfs_read_data *data)
+{
+ rpc_call_start(task);
+}
+
static int nfs_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
if (nfs_async_handle_expired_key(task))
@@ -668,6 +683,11 @@ static void nfs_proc_write_setup(struct nfs_write_data *data, struct rpc_message
msg->rpc_proc = &nfs_procedures[NFSPROC_WRITE];
}
+static void nfs_proc_write_rpc_prepare(struct rpc_task *task, struct nfs_write_data *data)
+{
+ rpc_call_start(task);
+}
+
static void
nfs_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)
{
@@ -721,9 +741,11 @@ const struct nfs_rpc_ops nfs_v2_clientops = {
.create = nfs_proc_create,
.remove = nfs_proc_remove,
.unlink_setup = nfs_proc_unlink_setup,
+ .unlink_rpc_prepare = nfs_proc_unlink_rpc_prepare,
.unlink_done = nfs_proc_unlink_done,
.rename = nfs_proc_rename,
.rename_setup = nfs_proc_rename_setup,
+ .rename_rpc_prepare = nfs_proc_rename_rpc_prepare,
.rename_done = nfs_proc_rename_done,
.link = nfs_proc_link,
.symlink = nfs_proc_symlink,
@@ -736,8 +758,10 @@ const struct nfs_rpc_ops nfs_v2_clientops = {
.pathconf = nfs_proc_pathconf,
.decode_dirent = nfs2_decode_dirent,
.read_setup = nfs_proc_read_setup,
+ .read_rpc_prepare = nfs_proc_read_rpc_prepare,
.read_done = nfs_read_done,
.write_setup = nfs_proc_write_setup,
+ .write_rpc_prepare = nfs_proc_write_rpc_prepare,
.write_done = nfs_write_done,
.commit_setup = nfs_proc_commit_setup,
.lock = nfs_proc_lock,
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index cfa175c223dc..cc1f758a7ee1 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -66,7 +66,6 @@ void nfs_readdata_free(struct nfs_read_data *p)
void nfs_readdata_release(struct nfs_read_data *rdata)
{
- put_lseg(rdata->lseg);
put_nfs_open_context(rdata->args.context);
nfs_readdata_free(rdata);
}
@@ -465,23 +464,14 @@ static void nfs_readpage_release_partial(void *calldata)
nfs_readdata_release(calldata);
}
-#if defined(CONFIG_NFS_V4_1)
void nfs_read_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_read_data *data = calldata;
-
- if (nfs4_setup_sequence(NFS_SERVER(data->inode),
- &data->args.seq_args, &data->res.seq_res,
- 0, task))
- return;
- rpc_call_start(task);
+ NFS_PROTO(data->inode)->read_rpc_prepare(task, data);
}
-#endif /* CONFIG_NFS_V4_1 */
static const struct rpc_call_ops nfs_read_partial_ops = {
-#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_read_prepare,
-#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_readpage_result_partial,
.rpc_release = nfs_readpage_release_partial,
};
@@ -545,9 +535,7 @@ static void nfs_readpage_release_full(void *calldata)
}
static const struct rpc_call_ops nfs_read_full_ops = {
-#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_read_prepare,
-#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_readpage_result_full,
.rpc_release = nfs_readpage_release_full,
};
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 3dfa4f112c0a..ccc4cdb1efe9 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -52,6 +52,8 @@
#include <linux/nfs_xdr.h>
#include <linux/magic.h>
#include <linux/parser.h>
+#include <linux/nsproxy.h>
+#include <linux/rcupdate.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -79,7 +81,6 @@ enum {
Opt_cto, Opt_nocto,
Opt_ac, Opt_noac,
Opt_lock, Opt_nolock,
- Opt_v2, Opt_v3, Opt_v4,
Opt_udp, Opt_tcp, Opt_rdma,
Opt_acl, Opt_noacl,
Opt_rdirplus, Opt_nordirplus,
@@ -97,10 +98,10 @@ enum {
Opt_namelen,
Opt_mountport,
Opt_mountvers,
- Opt_nfsvers,
Opt_minorversion,
/* Mount options that take string arguments */
+ Opt_nfsvers,
Opt_sec, Opt_proto, Opt_mountproto, Opt_mounthost,
Opt_addr, Opt_mountaddr, Opt_clientaddr,
Opt_lookupcache,
@@ -132,9 +133,6 @@ static const match_table_t nfs_mount_option_tokens = {
{ Opt_noac, "noac" },
{ Opt_lock, "lock" },
{ Opt_nolock, "nolock" },
- { Opt_v2, "v2" },
- { Opt_v3, "v3" },
- { Opt_v4, "v4" },
{ Opt_udp, "udp" },
{ Opt_tcp, "tcp" },
{ Opt_rdma, "rdma" },
@@ -163,9 +161,10 @@ static const match_table_t nfs_mount_option_tokens = {
{ Opt_namelen, "namlen=%s" },
{ Opt_mountport, "mountport=%s" },
{ Opt_mountvers, "mountvers=%s" },
+ { Opt_minorversion, "minorversion=%s" },
+
{ Opt_nfsvers, "nfsvers=%s" },
{ Opt_nfsvers, "vers=%s" },
- { Opt_minorversion, "minorversion=%s" },
{ Opt_sec, "sec=%s" },
{ Opt_proto, "proto=%s" },
@@ -179,6 +178,9 @@ static const match_table_t nfs_mount_option_tokens = {
{ Opt_fscache_uniq, "fsc=%s" },
{ Opt_local_lock, "local_lock=%s" },
+ /* The following needs to be listed after all other options */
+ { Opt_nfsvers, "v%s" },
+
{ Opt_err, NULL }
};
@@ -259,6 +261,22 @@ static match_table_t nfs_local_lock_tokens = {
{ Opt_local_lock_err, NULL }
};
+enum {
+ Opt_vers_2, Opt_vers_3, Opt_vers_4, Opt_vers_4_0,
+ Opt_vers_4_1,
+
+ Opt_vers_err
+};
+
+static match_table_t nfs_vers_tokens = {
+ { Opt_vers_2, "2" },
+ { Opt_vers_3, "3" },
+ { Opt_vers_4, "4" },
+ { Opt_vers_4_0, "4.0" },
+ { Opt_vers_4_1, "4.1" },
+
+ { Opt_vers_err, NULL }
+};
static void nfs_umount_begin(struct super_block *);
static int nfs_statfs(struct dentry *, struct kstatfs *);
@@ -620,7 +638,6 @@ static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
struct nfs_client *clp = nfss->nfs_client;
seq_printf(m, ",clientaddr=%s", clp->cl_ipaddr);
- seq_printf(m, ",minorversion=%u", clp->cl_minorversion);
}
#else
static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
@@ -629,6 +646,15 @@ static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
}
#endif
+static void nfs_show_nfs_version(struct seq_file *m,
+ unsigned int version,
+ unsigned int minorversion)
+{
+ seq_printf(m, ",vers=%u", version);
+ if (version == 4)
+ seq_printf(m, ".%u", minorversion);
+}
+
/*
* Describe the mount options in force on this server representation
*/
@@ -656,7 +682,7 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
u32 version = clp->rpc_ops->version;
int local_flock, local_fcntl;
- seq_printf(m, ",vers=%u", version);
+ nfs_show_nfs_version(m, version, clp->cl_minorversion);
seq_printf(m, ",rsize=%u", nfss->rsize);
seq_printf(m, ",wsize=%u", nfss->wsize);
if (nfss->bsize != 0)
@@ -676,8 +702,10 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
else
seq_puts(m, nfs_infop->nostr);
}
+ rcu_read_lock();
seq_printf(m, ",proto=%s",
rpc_peeraddr2str(nfss->client, RPC_DISPLAY_NETID));
+ rcu_read_unlock();
if (version == 4) {
if (nfss->port != NFS_PORT)
seq_printf(m, ",port=%u", nfss->port);
@@ -726,9 +754,11 @@ static int nfs_show_options(struct seq_file *m, struct dentry *root)
nfs_show_mount_options(m, nfss, 0);
+ rcu_read_lock();
seq_printf(m, ",addr=%s",
rpc_peeraddr2str(nfss->nfs_client->cl_rpcclient,
RPC_DISPLAY_ADDR));
+ rcu_read_unlock();
return 0;
}
@@ -745,7 +775,6 @@ static void show_sessions(struct seq_file *m, struct nfs_server *server) {}
#endif
#endif
-#ifdef CONFIG_NFS_V4
#ifdef CONFIG_NFS_V4_1
static void show_pnfs(struct seq_file *m, struct nfs_server *server)
{
@@ -755,9 +784,26 @@ static void show_pnfs(struct seq_file *m, struct nfs_server *server)
else
seq_printf(m, "not configured");
}
+
+static void show_implementation_id(struct seq_file *m, struct nfs_server *nfss)
+{
+ if (nfss->nfs_client && nfss->nfs_client->impl_id) {
+ struct nfs41_impl_id *impl_id = nfss->nfs_client->impl_id;
+ seq_printf(m, "\n\timpl_id:\tname='%s',domain='%s',"
+ "date='%llu,%u'",
+ impl_id->name, impl_id->domain,
+ impl_id->date.seconds, impl_id->date.nseconds);
+ }
+}
#else
-static void show_pnfs(struct seq_file *m, struct nfs_server *server) {}
+#ifdef CONFIG_NFS_V4
+static void show_pnfs(struct seq_file *m, struct nfs_server *server)
+{
+}
#endif
+static void show_implementation_id(struct seq_file *m, struct nfs_server *nfss)
+{
+}
#endif
static int nfs_show_devname(struct seq_file *m, struct dentry *root)
@@ -806,6 +852,8 @@ static int nfs_show_stats(struct seq_file *m, struct dentry *root)
seq_printf(m, "\n\tage:\t%lu", (jiffies - nfss->mount_time) / HZ);
+ show_implementation_id(m, nfss);
+
seq_printf(m, "\n\tcaps:\t");
seq_printf(m, "caps=0x%x", nfss->caps);
seq_printf(m, ",wtmult=%u", nfss->wtmult);
@@ -908,6 +956,7 @@ static struct nfs_parsed_mount_data *nfs_alloc_parsed_mount_data(unsigned int ve
data->auth_flavor_len = 1;
data->version = version;
data->minorversion = 0;
+ data->net = current->nsproxy->net_ns;
security_init_mnt_opts(&data->lsm_opts);
}
return data;
@@ -1052,6 +1101,40 @@ static int nfs_parse_security_flavors(char *value,
return 1;
}
+static int nfs_parse_version_string(char *string,
+ struct nfs_parsed_mount_data *mnt,
+ substring_t *args)
+{
+ mnt->flags &= ~NFS_MOUNT_VER3;
+ switch (match_token(string, nfs_vers_tokens, args)) {
+ case Opt_vers_2:
+ mnt->version = 2;
+ break;
+ case Opt_vers_3:
+ mnt->flags |= NFS_MOUNT_VER3;
+ mnt->version = 3;
+ break;
+ case Opt_vers_4:
+ /* Backward compatibility option. In future,
+ * the mount program should always supply
+ * a NFSv4 minor version number.
+ */
+ mnt->version = 4;
+ break;
+ case Opt_vers_4_0:
+ mnt->version = 4;
+ mnt->minorversion = 0;
+ break;
+ case Opt_vers_4_1:
+ mnt->version = 4;
+ mnt->minorversion = 1;
+ break;
+ default:
+ return 0;
+ }
+ return 1;
+}
+
static int nfs_get_option_str(substring_t args[], char **option)
{
kfree(*option);
@@ -1157,18 +1240,6 @@ static int nfs_parse_mount_options(char *raw,
mnt->flags |= (NFS_MOUNT_LOCAL_FLOCK |
NFS_MOUNT_LOCAL_FCNTL);
break;
- case Opt_v2:
- mnt->flags &= ~NFS_MOUNT_VER3;
- mnt->version = 2;
- break;
- case Opt_v3:
- mnt->flags |= NFS_MOUNT_VER3;
- mnt->version = 3;
- break;
- case Opt_v4:
- mnt->flags &= ~NFS_MOUNT_VER3;
- mnt->version = 4;
- break;
case Opt_udp:
mnt->flags &= ~NFS_MOUNT_TCP;
mnt->nfs_server.protocol = XPRT_TRANSPORT_UDP;
@@ -1295,26 +1366,6 @@ static int nfs_parse_mount_options(char *raw,
goto out_invalid_value;
mnt->mount_server.version = option;
break;
- case Opt_nfsvers:
- if (nfs_get_option_ul(args, &option))
- goto out_invalid_value;
- switch (option) {
- case NFS2_VERSION:
- mnt->flags &= ~NFS_MOUNT_VER3;
- mnt->version = 2;
- break;
- case NFS3_VERSION:
- mnt->flags |= NFS_MOUNT_VER3;
- mnt->version = 3;
- break;
- case NFS4_VERSION:
- mnt->flags &= ~NFS_MOUNT_VER3;
- mnt->version = 4;
- break;
- default:
- goto out_invalid_value;
- }
- break;
case Opt_minorversion:
if (nfs_get_option_ul(args, &option))
goto out_invalid_value;
@@ -1326,6 +1377,15 @@ static int nfs_parse_mount_options(char *raw,
/*
* options that take text values
*/
+ case Opt_nfsvers:
+ string = match_strdup(args);
+ if (string == NULL)
+ goto out_nomem;
+ rc = nfs_parse_version_string(string, mnt, args);
+ kfree(string);
+ if (!rc)
+ goto out_invalid_value;
+ break;
case Opt_sec:
string = match_strdup(args);
if (string == NULL)
@@ -1405,7 +1465,7 @@ static int nfs_parse_mount_options(char *raw,
if (string == NULL)
goto out_nomem;
mnt->nfs_server.addrlen =
- rpc_pton(string, strlen(string),
+ rpc_pton(mnt->net, string, strlen(string),
(struct sockaddr *)
&mnt->nfs_server.address,
sizeof(mnt->nfs_server.address));
@@ -1427,7 +1487,7 @@ static int nfs_parse_mount_options(char *raw,
if (string == NULL)
goto out_nomem;
mnt->mount_server.addrlen =
- rpc_pton(string, strlen(string),
+ rpc_pton(mnt->net, string, strlen(string),
(struct sockaddr *)
&mnt->mount_server.address,
sizeof(mnt->mount_server.address));
@@ -1516,6 +1576,9 @@ static int nfs_parse_mount_options(char *raw,
if (!sloppy && invalid_option)
return 0;
+ if (mnt->minorversion && mnt->version != 4)
+ goto out_minorversion_mismatch;
+
/*
* verify that any proto=/mountproto= options match the address
* familiies in the addr=/mountaddr= options.
@@ -1549,6 +1612,10 @@ out_invalid_address:
out_invalid_value:
printk(KERN_INFO "NFS: bad mount option value specified: %s\n", p);
return 0;
+out_minorversion_mismatch:
+ printk(KERN_INFO "NFS: mount option vers=%u does not support "
+ "minorversion=%u\n", mnt->version, mnt->minorversion);
+ return 0;
out_nomem:
printk(KERN_INFO "NFS: not enough memory to parse option\n");
return 0;
@@ -1622,6 +1689,7 @@ static int nfs_try_mount(struct nfs_parsed_mount_data *args,
.noresvport = args->flags & NFS_MOUNT_NORESVPORT,
.auth_flav_len = &server_authlist_len,
.auth_flavs = server_authlist,
+ .net = args->net,
};
int status;
@@ -2047,7 +2115,7 @@ static inline void nfs_initialise_sb(struct super_block *sb)
/* We probably want something more informative here */
snprintf(sb->s_id, sizeof(sb->s_id),
- "%x:%x", MAJOR(sb->s_dev), MINOR(sb->s_dev));
+ "%u:%u", MAJOR(sb->s_dev), MINOR(sb->s_dev));
if (sb->s_blocksize == 0)
sb->s_blocksize = nfs_block_bits(server->wsize,
@@ -2499,12 +2567,6 @@ static int nfs4_validate_text_mount_data(void *options,
return -EINVAL;
}
- if (args->client_address == NULL) {
- dfprintk(MOUNT,
- "NFS4: mount program didn't pass callback address\n");
- return -EINVAL;
- }
-
return nfs_parse_devname(dev_name,
&args->nfs_server.hostname,
NFS4_MAXNAMLEN,
@@ -2663,8 +2725,7 @@ nfs4_remote_mount(struct file_system_type *fs_type, int flags,
if (!s->s_root) {
/* initial superblock/root creation */
nfs4_fill_super(s);
- nfs_fscache_get_super_cookie(
- s, data ? data->fscache_uniq : NULL, NULL);
+ nfs_fscache_get_super_cookie(s, data->fscache_uniq, NULL);
}
mntroot = nfs4_get_root(s, mntfh, dev_name);
diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c
index 978aaeb8a093..ad4d2e787b20 100644
--- a/fs/nfs/sysctl.c
+++ b/fs/nfs/sysctl.c
@@ -32,7 +32,6 @@ static ctl_table nfs_cb_sysctls[] = {
.extra1 = (int *)&nfs_set_port_min,
.extra2 = (int *)&nfs_set_port_max,
},
-#ifndef CONFIG_NFS_USE_NEW_IDMAPPER
{
.procname = "idmap_cache_timeout",
.data = &nfs_idmap_cache_timeout,
@@ -40,7 +39,6 @@ static ctl_table nfs_cb_sysctls[] = {
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
-#endif /* CONFIG_NFS_USE_NEW_IDMAPPER */
#endif
{
.procname = "nfs_mountpoint_timeout",
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index 4f9319a2e567..3210a03342f9 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -20,15 +20,6 @@
#include "iostat.h"
#include "delegation.h"
-struct nfs_unlinkdata {
- struct hlist_node list;
- struct nfs_removeargs args;
- struct nfs_removeres res;
- struct inode *dir;
- struct rpc_cred *cred;
- struct nfs_fattr dir_attr;
-};
-
/**
* nfs_free_unlinkdata - release data from a sillydelete operation.
* @data: pointer to unlink structure.
@@ -107,25 +98,16 @@ static void nfs_async_unlink_release(void *calldata)
nfs_sb_deactive(sb);
}
-#if defined(CONFIG_NFS_V4_1)
-void nfs_unlink_prepare(struct rpc_task *task, void *calldata)
+static void nfs_unlink_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_unlinkdata *data = calldata;
- struct nfs_server *server = NFS_SERVER(data->dir);
-
- if (nfs4_setup_sequence(server, &data->args.seq_args,
- &data->res.seq_res, 1, task))
- return;
- rpc_call_start(task);
+ NFS_PROTO(data->dir)->unlink_rpc_prepare(task, data);
}
-#endif /* CONFIG_NFS_V4_1 */
static const struct rpc_call_ops nfs_unlink_ops = {
.rpc_call_done = nfs_async_unlink_done,
.rpc_release = nfs_async_unlink_release,
-#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_unlink_prepare,
-#endif /* CONFIG_NFS_V4_1 */
};
static int nfs_do_call_unlink(struct dentry *parent, struct inode *dir, struct nfs_unlinkdata *data)
@@ -341,18 +323,6 @@ nfs_cancel_async_unlink(struct dentry *dentry)
spin_unlock(&dentry->d_lock);
}
-struct nfs_renamedata {
- struct nfs_renameargs args;
- struct nfs_renameres res;
- struct rpc_cred *cred;
- struct inode *old_dir;
- struct dentry *old_dentry;
- struct nfs_fattr old_fattr;
- struct inode *new_dir;
- struct dentry *new_dentry;
- struct nfs_fattr new_fattr;
-};
-
/**
* nfs_async_rename_done - Sillyrename post-processing
* @task: rpc_task of the sillyrename
@@ -403,25 +373,16 @@ static void nfs_async_rename_release(void *calldata)
kfree(data);
}
-#if defined(CONFIG_NFS_V4_1)
static void nfs_rename_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_renamedata *data = calldata;
- struct nfs_server *server = NFS_SERVER(data->old_dir);
-
- if (nfs4_setup_sequence(server, &data->args.seq_args,
- &data->res.seq_res, 1, task))
- return;
- rpc_call_start(task);
+ NFS_PROTO(data->old_dir)->rename_rpc_prepare(task, data);
}
-#endif /* CONFIG_NFS_V4_1 */
static const struct rpc_call_ops nfs_rename_ops = {
.rpc_call_done = nfs_async_rename_done,
.rpc_release = nfs_async_rename_release,
-#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_rename_prepare,
-#endif /* CONFIG_NFS_V4_1 */
};
/**
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 834f0fe96f89..2c68818f68ac 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -100,7 +100,6 @@ void nfs_writedata_free(struct nfs_write_data *p)
void nfs_writedata_release(struct nfs_write_data *wdata)
{
- put_lseg(wdata->lseg);
put_nfs_open_context(wdata->args.context);
nfs_writedata_free(wdata);
}
@@ -236,10 +235,10 @@ static struct nfs_page *nfs_find_and_lock_request(struct page *page, bool nonblo
req = nfs_page_find_request_locked(page);
if (req == NULL)
break;
- if (nfs_set_page_tag_locked(req))
+ if (nfs_lock_request_dontget(req))
break;
/* Note: If we hold the page lock, as is the case in nfs_writepage,
- * then the call to nfs_set_page_tag_locked() will always
+ * then the call to nfs_lock_request_dontget() will always
* succeed provided that someone hasn't already marked the
* request as dirty (in which case we don't care).
*/
@@ -375,21 +374,14 @@ out_err:
/*
* Insert a write request into an inode
*/
-static int nfs_inode_add_request(struct inode *inode, struct nfs_page *req)
+static void nfs_inode_add_request(struct inode *inode, struct nfs_page *req)
{
struct nfs_inode *nfsi = NFS_I(inode);
- int error;
-
- error = radix_tree_preload(GFP_NOFS);
- if (error != 0)
- goto out;
/* Lock the request! */
nfs_lock_request_dontget(req);
spin_lock(&inode->i_lock);
- error = radix_tree_insert(&nfsi->nfs_page_tree, req->wb_index, req);
- BUG_ON(error);
if (!nfsi->npages && nfs_have_delegation(inode, FMODE_WRITE))
inode->i_version++;
set_bit(PG_MAPPED, &req->wb_flags);
@@ -397,12 +389,7 @@ static int nfs_inode_add_request(struct inode *inode, struct nfs_page *req)
set_page_private(req->wb_page, (unsigned long)req);
nfsi->npages++;
kref_get(&req->wb_kref);
- radix_tree_tag_set(&nfsi->nfs_page_tree, req->wb_index,
- NFS_PAGE_TAG_LOCKED);
spin_unlock(&inode->i_lock);
- radix_tree_preload_end();
-out:
- return error;
}
/*
@@ -419,7 +406,6 @@ static void nfs_inode_remove_request(struct nfs_page *req)
set_page_private(req->wb_page, 0);
ClearPagePrivate(req->wb_page);
clear_bit(PG_MAPPED, &req->wb_flags);
- radix_tree_delete(&nfsi->nfs_page_tree, req->wb_index);
nfsi->npages--;
spin_unlock(&inode->i_lock);
nfs_release_request(req);
@@ -432,39 +418,90 @@ nfs_mark_request_dirty(struct nfs_page *req)
}
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
-/*
- * Add a request to the inode's commit list.
+/**
+ * nfs_request_add_commit_list - add request to a commit list
+ * @req: pointer to a struct nfs_page
+ * @head: commit list head
+ *
+ * This sets the PG_CLEAN bit, updates the inode global count of
+ * number of outstanding requests requiring a commit as well as
+ * the MM page stats.
+ *
+ * The caller must _not_ hold the inode->i_lock, but must be
+ * holding the nfs_page lock.
*/
-static void
-nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
+void
+nfs_request_add_commit_list(struct nfs_page *req, struct list_head *head)
{
struct inode *inode = req->wb_context->dentry->d_inode;
- struct nfs_inode *nfsi = NFS_I(inode);
- spin_lock(&inode->i_lock);
set_bit(PG_CLEAN, &(req)->wb_flags);
- radix_tree_tag_set(&nfsi->nfs_page_tree,
- req->wb_index,
- NFS_PAGE_TAG_COMMIT);
- nfsi->ncommit++;
+ spin_lock(&inode->i_lock);
+ nfs_list_add_request(req, head);
+ NFS_I(inode)->ncommit++;
spin_unlock(&inode->i_lock);
- pnfs_mark_request_commit(req, lseg);
inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
inc_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_RECLAIMABLE);
__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
}
+EXPORT_SYMBOL_GPL(nfs_request_add_commit_list);
-static int
+/**
+ * nfs_request_remove_commit_list - Remove request from a commit list
+ * @req: pointer to a nfs_page
+ *
+ * This clears the PG_CLEAN bit, and updates the inode global count of
+ * number of outstanding requests requiring a commit
+ * It does not update the MM page stats.
+ *
+ * The caller _must_ hold the inode->i_lock and the nfs_page lock.
+ */
+void
+nfs_request_remove_commit_list(struct nfs_page *req)
+{
+ struct inode *inode = req->wb_context->dentry->d_inode;
+
+ if (!test_and_clear_bit(PG_CLEAN, &(req)->wb_flags))
+ return;
+ nfs_list_remove_request(req);
+ NFS_I(inode)->ncommit--;
+}
+EXPORT_SYMBOL_GPL(nfs_request_remove_commit_list);
+
+
+/*
+ * Add a request to the inode's commit list.
+ */
+static void
+nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
+{
+ struct inode *inode = req->wb_context->dentry->d_inode;
+
+ if (pnfs_mark_request_commit(req, lseg))
+ return;
+ nfs_request_add_commit_list(req, &NFS_I(inode)->commit_list);
+}
+
+static void
+nfs_clear_page_commit(struct page *page)
+{
+ dec_zone_page_state(page, NR_UNSTABLE_NFS);
+ dec_bdi_stat(page->mapping->backing_dev_info, BDI_RECLAIMABLE);
+}
+
+static void
nfs_clear_request_commit(struct nfs_page *req)
{
- struct page *page = req->wb_page;
+ if (test_bit(PG_CLEAN, &req->wb_flags)) {
+ struct inode *inode = req->wb_context->dentry->d_inode;
- if (test_and_clear_bit(PG_CLEAN, &(req)->wb_flags)) {
- dec_zone_page_state(page, NR_UNSTABLE_NFS);
- dec_bdi_stat(page->mapping->backing_dev_info, BDI_RECLAIMABLE);
- return 1;
+ if (!pnfs_clear_request_commit(req)) {
+ spin_lock(&inode->i_lock);
+ nfs_request_remove_commit_list(req);
+ spin_unlock(&inode->i_lock);
+ }
+ nfs_clear_page_commit(req->wb_page);
}
- return 0;
}
static inline
@@ -491,15 +528,14 @@ int nfs_reschedule_unstable_write(struct nfs_page *req,
return 0;
}
#else
-static inline void
+static void
nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg)
{
}
-static inline int
+static void
nfs_clear_request_commit(struct nfs_page *req)
{
- return 0;
}
static inline
@@ -520,46 +556,65 @@ int nfs_reschedule_unstable_write(struct nfs_page *req,
static int
nfs_need_commit(struct nfs_inode *nfsi)
{
- return radix_tree_tagged(&nfsi->nfs_page_tree, NFS_PAGE_TAG_COMMIT);
+ return nfsi->ncommit > 0;
+}
+
+/* i_lock held by caller */
+static int
+nfs_scan_commit_list(struct list_head *src, struct list_head *dst, int max,
+ spinlock_t *lock)
+{
+ struct nfs_page *req, *tmp;
+ int ret = 0;
+
+ list_for_each_entry_safe(req, tmp, src, wb_list) {
+ if (!nfs_lock_request(req))
+ continue;
+ if (cond_resched_lock(lock))
+ list_safe_reset_next(req, tmp, wb_list);
+ nfs_request_remove_commit_list(req);
+ nfs_list_add_request(req, dst);
+ ret++;
+ if (ret == max)
+ break;
+ }
+ return ret;
}
/*
* nfs_scan_commit - Scan an inode for commit requests
* @inode: NFS inode to scan
* @dst: destination list
- * @idx_start: lower bound of page->index to scan.
- * @npages: idx_start + npages sets the upper bound to scan.
*
* Moves requests from the inode's 'commit' request list.
* The requests are *not* checked to ensure that they form a contiguous set.
*/
static int
-nfs_scan_commit(struct inode *inode, struct list_head *dst, pgoff_t idx_start, unsigned int npages)
+nfs_scan_commit(struct inode *inode, struct list_head *dst)
{
struct nfs_inode *nfsi = NFS_I(inode);
- int ret;
-
- if (!nfs_need_commit(nfsi))
- return 0;
+ int ret = 0;
spin_lock(&inode->i_lock);
- ret = nfs_scan_list(nfsi, dst, idx_start, npages, NFS_PAGE_TAG_COMMIT);
- if (ret > 0)
- nfsi->ncommit -= ret;
- spin_unlock(&inode->i_lock);
-
- if (nfs_need_commit(NFS_I(inode)))
- __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+ if (nfsi->ncommit > 0) {
+ const int max = INT_MAX;
+ ret = nfs_scan_commit_list(&nfsi->commit_list, dst, max,
+ &inode->i_lock);
+ ret += pnfs_scan_commit_lists(inode, max - ret,
+ &inode->i_lock);
+ }
+ spin_unlock(&inode->i_lock);
return ret;
}
+
#else
static inline int nfs_need_commit(struct nfs_inode *nfsi)
{
return 0;
}
-static inline int nfs_scan_commit(struct inode *inode, struct list_head *dst, pgoff_t idx_start, unsigned int npages)
+static inline int nfs_scan_commit(struct inode *inode, struct list_head *dst)
{
return 0;
}
@@ -604,7 +659,7 @@ static struct nfs_page *nfs_try_to_update_request(struct inode *inode,
|| end < req->wb_offset)
goto out_flushme;
- if (nfs_set_page_tag_locked(req))
+ if (nfs_lock_request_dontget(req))
break;
/* The request is locked, so wait and then retry */
@@ -616,13 +671,6 @@ static struct nfs_page *nfs_try_to_update_request(struct inode *inode,
spin_lock(&inode->i_lock);
}
- if (nfs_clear_request_commit(req) &&
- radix_tree_tag_clear(&NFS_I(inode)->nfs_page_tree,
- req->wb_index, NFS_PAGE_TAG_COMMIT) != NULL) {
- NFS_I(inode)->ncommit--;
- pnfs_clear_request_commit(req);
- }
-
/* Okay, the request matches. Update the region */
if (offset < req->wb_offset) {
req->wb_offset = offset;
@@ -634,6 +682,7 @@ static struct nfs_page *nfs_try_to_update_request(struct inode *inode,
req->wb_bytes = rqend - req->wb_offset;
out_unlock:
spin_unlock(&inode->i_lock);
+ nfs_clear_request_commit(req);
return req;
out_flushme:
spin_unlock(&inode->i_lock);
@@ -655,7 +704,6 @@ static struct nfs_page * nfs_setup_write_request(struct nfs_open_context* ctx,
{
struct inode *inode = page->mapping->host;
struct nfs_page *req;
- int error;
req = nfs_try_to_update_request(inode, page, offset, bytes);
if (req != NULL)
@@ -663,11 +711,7 @@ static struct nfs_page * nfs_setup_write_request(struct nfs_open_context* ctx,
req = nfs_create_request(ctx, inode, page, offset, bytes);
if (IS_ERR(req))
goto out;
- error = nfs_inode_add_request(inode, req);
- if (error != 0) {
- nfs_release_request(req);
- req = ERR_PTR(error);
- }
+ nfs_inode_add_request(inode, req);
out:
return req;
}
@@ -684,7 +728,7 @@ static int nfs_writepage_setup(struct nfs_open_context *ctx, struct page *page,
nfs_grow_file(page, offset, count);
nfs_mark_uptodate(page, req->wb_pgbase, req->wb_bytes);
nfs_mark_request_dirty(req);
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
return 0;
}
@@ -777,7 +821,7 @@ static void nfs_writepage_release(struct nfs_page *req,
if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req, data))
nfs_inode_remove_request(req);
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
nfs_end_page_writeback(page);
}
@@ -925,7 +969,7 @@ static void nfs_redirty_request(struct nfs_page *req)
struct page *page = req->wb_page;
nfs_mark_request_dirty(req);
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
nfs_end_page_writeback(page);
}
@@ -1128,23 +1172,14 @@ out:
nfs_writedata_release(calldata);
}
-#if defined(CONFIG_NFS_V4_1)
void nfs_write_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_write_data *data = calldata;
-
- if (nfs4_setup_sequence(NFS_SERVER(data->inode),
- &data->args.seq_args,
- &data->res.seq_res, 1, task))
- return;
- rpc_call_start(task);
+ NFS_PROTO(data->inode)->write_rpc_prepare(task, data);
}
-#endif /* CONFIG_NFS_V4_1 */
static const struct rpc_call_ops nfs_write_partial_ops = {
-#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_write_prepare,
-#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_writeback_done_partial,
.rpc_release = nfs_writeback_release_partial,
};
@@ -1199,16 +1234,14 @@ static void nfs_writeback_release_full(void *calldata)
remove_request:
nfs_inode_remove_request(req);
next:
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
nfs_end_page_writeback(page);
}
nfs_writedata_release(calldata);
}
static const struct rpc_call_ops nfs_write_full_ops = {
-#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_write_prepare,
-#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_writeback_done_full,
.rpc_release = nfs_writeback_release_full,
};
@@ -1325,7 +1358,6 @@ void nfs_commitdata_release(void *data)
{
struct nfs_write_data *wdata = data;
- put_lseg(wdata->lseg);
put_nfs_open_context(wdata->args.context);
nfs_commit_free(wdata);
}
@@ -1411,7 +1443,7 @@ void nfs_retry_commit(struct list_head *page_list,
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
dec_bdi_stat(req->wb_page->mapping->backing_dev_info,
BDI_RECLAIMABLE);
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
}
}
EXPORT_SYMBOL_GPL(nfs_retry_commit);
@@ -1460,7 +1492,7 @@ void nfs_commit_release_pages(struct nfs_write_data *data)
while (!list_empty(&data->pages)) {
req = nfs_list_entry(data->pages.next);
nfs_list_remove_request(req);
- nfs_clear_request_commit(req);
+ nfs_clear_page_commit(req->wb_page);
dprintk("NFS: commit (%s/%lld %d@%lld)",
req->wb_context->dentry->d_sb->s_id,
@@ -1486,7 +1518,7 @@ void nfs_commit_release_pages(struct nfs_write_data *data)
dprintk(" mismatch\n");
nfs_mark_request_dirty(req);
next:
- nfs_clear_page_tag_locked(req);
+ nfs_unlock_request(req);
}
}
EXPORT_SYMBOL_GPL(nfs_commit_release_pages);
@@ -1501,9 +1533,7 @@ static void nfs_commit_release(void *calldata)
}
static const struct rpc_call_ops nfs_commit_ops = {
-#if defined(CONFIG_NFS_V4_1)
.rpc_call_prepare = nfs_write_prepare,
-#endif /* CONFIG_NFS_V4_1 */
.rpc_call_done = nfs_commit_done,
.rpc_release = nfs_commit_release,
};
@@ -1517,7 +1547,7 @@ int nfs_commit_inode(struct inode *inode, int how)
res = nfs_commit_set_lock(NFS_I(inode), may_wait);
if (res <= 0)
goto out_mark_dirty;
- res = nfs_scan_commit(inode, &head, 0, 0);
+ res = nfs_scan_commit(inode, &head);
if (res) {
int error;
@@ -1635,6 +1665,7 @@ int nfs_wb_page_cancel(struct inode *inode, struct page *page)
if (req == NULL)
break;
if (nfs_lock_request_dontget(req)) {
+ nfs_clear_request_commit(req);
nfs_inode_remove_request(req);
/*
* In case nfs_inode_remove_request has marked the
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 6f3ebb48b12f..0e262f32ac41 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -605,24 +605,24 @@ static struct rpc_version nfs_cb_version4 = {
.procs = nfs4_cb_procedures
};
-static struct rpc_version *nfs_cb_version[] = {
+static const struct rpc_version *nfs_cb_version[] = {
&nfs_cb_version4,
};
-static struct rpc_program cb_program;
+static const struct rpc_program cb_program;
static struct rpc_stat cb_stats = {
.program = &cb_program
};
#define NFS4_CALLBACK 0x40000000
-static struct rpc_program cb_program = {
+static const struct rpc_program cb_program = {
.name = "nfs4_cb",
.number = NFS4_CALLBACK,
.nrvers = ARRAY_SIZE(nfs_cb_version),
.version = nfs_cb_version,
.stats = &cb_stats,
- .pipe_dir_name = "/nfsd4_cb",
+ .pipe_dir_name = "nfsd4_cb",
};
static int max_cb_time(void)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index e8c98f009670..c5cddd659429 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1308,7 +1308,7 @@ gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se, struct svc_r
else
goto out_err;
- conn->cb_addrlen = rpc_uaddr2sockaddr(se->se_callback_addr_val,
+ conn->cb_addrlen = rpc_uaddr2sockaddr(&init_net, se->se_callback_addr_val,
se->se_callback_addr_len,
(struct sockaddr *)&conn->cb_addr,
sizeof(conn->cb_addr));
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 748eda93ce59..64c24af8d7ea 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -223,7 +223,7 @@ static ssize_t write_unlock_ip(struct file *file, char *buf, size_t size)
if (qword_get(&buf, fo_path, size) < 0)
return -EINVAL;
- if (rpc_pton(fo_path, size, sap, salen) == 0)
+ if (rpc_pton(&init_net, fo_path, size, sap, salen) == 0)
return -EINVAL;
return nlmsvc_unlock_all_by_ip(sap);
@@ -722,7 +722,7 @@ static ssize_t __write_ports_addxprt(char *buf)
nfsd_serv->sv_nrthreads--;
return 0;
out_close:
- xprt = svc_find_xprt(nfsd_serv, transport, PF_INET, port);
+ xprt = svc_find_xprt(nfsd_serv, transport, &init_net, PF_INET, port);
if (xprt != NULL) {
svc_close_xprt(xprt);
svc_xprt_put(xprt);
@@ -748,7 +748,7 @@ static ssize_t __write_ports_delxprt(char *buf)
if (port < 1 || port > USHRT_MAX || nfsd_serv == NULL)
return -EINVAL;
- xprt = svc_find_xprt(nfsd_serv, transport, AF_UNSPEC, port);
+ xprt = svc_find_xprt(nfsd_serv, transport, &init_net, AF_UNSPEC, port);
if (xprt == NULL)
return -ENOTCONN;
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index eda7d7e55e05..fce472f5f39e 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -251,13 +251,13 @@ static void nfsd_shutdown(void)
nfsd_up = false;
}
-static void nfsd_last_thread(struct svc_serv *serv)
+static void nfsd_last_thread(struct svc_serv *serv, struct net *net)
{
/* When last nfsd thread exits we need to do some clean-up */
nfsd_serv = NULL;
nfsd_shutdown();
- svc_rpcb_cleanup(serv);
+ svc_rpcb_cleanup(serv, net);
printk(KERN_WARNING "nfsd: last server has exited, flushing export "
"cache\n");
diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c
index a2e2402b2afb..6d4521feb6e3 100644
--- a/fs/nfsd/stats.c
+++ b/fs/nfsd/stats.c
@@ -25,6 +25,7 @@
#include <linux/module.h>
#include <linux/sunrpc/stats.h>
#include <linux/nfsd/stats.h>
+#include <net/net_namespace.h>
#include "nfsd.h"
@@ -94,11 +95,11 @@ static const struct file_operations nfsd_proc_fops = {
void
nfsd_stat_init(void)
{
- svc_proc_register(&nfsd_svcstats, &nfsd_proc_fops);
+ svc_proc_register(&init_net, &nfsd_svcstats, &nfsd_proc_fops);
}
void
nfsd_stat_shutdown(void)
{
- svc_proc_unregister("nfsd");
+ svc_proc_unregister(&init_net, "nfsd");
}
diff --git a/include/linux/key.h b/include/linux/key.h
index 1600ebf717a7..96933b1e5d24 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -277,6 +277,8 @@ static inline key_serial_t key_serial(const struct key *key)
return key ? key->serial : 0;
}
+extern void key_set_timeout(struct key *, unsigned);
+
/**
* key_is_instantiated - Determine if a key has been positively instantiated
* @key: The key to check.
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
index fbc48f898521..11a966e5f829 100644
--- a/include/linux/lockd/bind.h
+++ b/include/linux/lockd/bind.h
@@ -42,6 +42,7 @@ struct nlmclnt_initdata {
unsigned short protocol;
u32 nfs_version;
int noresvport;
+ struct net *net;
};
/*
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 88a114fce477..f04ce6ac6d04 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -67,6 +67,7 @@ struct nlm_host {
struct list_head h_reclaim; /* Locks in RECLAIM state */
struct nsm_handle *h_nsmhandle; /* NSM status handle */
char *h_addrbuf; /* address eyecatcher */
+ struct net *net; /* host net */
};
/*
@@ -188,7 +189,7 @@ struct nlm_block {
/*
* Global variables
*/
-extern struct rpc_program nlm_program;
+extern const struct rpc_program nlm_program;
extern struct svc_procedure nlmsvc_procedures[];
#ifdef CONFIG_LOCKD_V4
extern struct svc_procedure nlmsvc_procedures4[];
@@ -222,7 +223,8 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
const unsigned short protocol,
const u32 version,
const char *hostname,
- int noresvport);
+ int noresvport,
+ struct net *net);
void nlmclnt_release_host(struct nlm_host *);
struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
const char *hostname,
@@ -232,6 +234,7 @@ struct rpc_clnt * nlm_bind_host(struct nlm_host *);
void nlm_rebind_host(struct nlm_host *);
struct nlm_host * nlm_get_host(struct nlm_host *);
void nlm_shutdown_hosts(void);
+void nlm_shutdown_hosts_net(struct net *net);
void nlm_host_rebooted(const struct nlm_reboot *);
/*
diff --git a/include/linux/lockd/xdr4.h b/include/linux/lockd/xdr4.h
index 7353821341ed..e58c88b52ce1 100644
--- a/include/linux/lockd/xdr4.h
+++ b/include/linux/lockd/xdr4.h
@@ -42,6 +42,6 @@ int nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
int nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *);
int nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
*/
-extern struct rpc_version nlm_version4;
+extern const struct rpc_version nlm_version4;
#endif /* LOCKD_XDR4_H */
diff --git a/include/linux/nfs.h b/include/linux/nfs.h
index 8c6ee44914cb..6d1fb63f5922 100644
--- a/include/linux/nfs.h
+++ b/include/linux/nfs.h
@@ -29,7 +29,7 @@
#define NFS_MNT_VERSION 1
#define NFS_MNT3_VERSION 3
-#define NFS_PIPE_DIRNAME "/nfs"
+#define NFS_PIPE_DIRNAME "nfs"
/*
* NFS stats. The good thing with these values is that NFSv3 errors are
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 32345c2805c0..834df8bf08b6 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -183,15 +183,12 @@ struct nfs4_acl {
typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;
-struct nfs41_stateid {
+struct nfs_stateid4 {
__be32 seqid;
char other[NFS4_STATEID_OTHER_SIZE];
} __attribute__ ((packed));
-typedef union {
- char data[NFS4_STATEID_SIZE];
- struct nfs41_stateid stateid;
-} nfs4_stateid;
+typedef struct nfs_stateid4 nfs4_stateid;
enum nfs_opnum4 {
OP_ACCESS = 3,
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 8c29950d2fa5..52a1bdb4ee2b 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -38,6 +38,13 @@
#ifdef __KERNEL__
+/*
+ * Enable dprintk() debugging support for nfs client.
+ */
+#ifdef CONFIG_NFS_DEBUG
+# define NFS_DEBUG
+#endif
+
#include <linux/in.h>
#include <linux/mm.h>
#include <linux/pagemap.h>
@@ -171,13 +178,9 @@ struct nfs_inode {
*/
__be32 cookieverf[2];
- /*
- * This is the list of dirty unwritten pages.
- */
- struct radix_tree_root nfs_page_tree;
-
unsigned long npages;
unsigned long ncommit;
+ struct list_head commit_list;
/* Open contexts for shared mmap writes */
struct list_head open_files;
@@ -395,6 +398,29 @@ static inline void nfs_free_fhandle(const struct nfs_fh *fh)
kfree(fh);
}
+#ifdef NFS_DEBUG
+extern u32 _nfs_display_fhandle_hash(const struct nfs_fh *fh);
+static inline u32 nfs_display_fhandle_hash(const struct nfs_fh *fh)
+{
+ return _nfs_display_fhandle_hash(fh);
+}
+extern void _nfs_display_fhandle(const struct nfs_fh *fh, const char *caption);
+#define nfs_display_fhandle(fh, caption) \
+ do { \
+ if (unlikely(nfs_debug & NFSDBG_FACILITY)) \
+ _nfs_display_fhandle(fh, caption); \
+ } while (0)
+#else
+static inline u32 nfs_display_fhandle_hash(const struct nfs_fh *fh)
+{
+ return 0;
+}
+static inline void nfs_display_fhandle(const struct nfs_fh *fh,
+ const char *caption)
+{
+}
+#endif
+
/*
* linux/fs/nfs/nfsroot.c
*/
@@ -632,19 +658,13 @@ nfs_fileid_to_ino_t(u64 fileid)
#ifdef __KERNEL__
-/*
- * Enable debugging support for nfs client.
- * Requires RPC_DEBUG.
- */
-#ifdef RPC_DEBUG
-# define NFS_DEBUG
-#endif
-
# undef ifdebug
# ifdef NFS_DEBUG
# define ifdebug(fac) if (unlikely(nfs_debug & NFSDBG_##fac))
+# define NFS_IFDEBUG(x) x
# else
# define ifdebug(fac) if (0)
+# define NFS_IFDEBUG(x)
# endif
#endif /* __KERNEL */
diff --git a/include/linux/nfs_fs_i.h b/include/linux/nfs_fs_i.h
index 861730275ba0..a5c50d97341e 100644
--- a/include/linux/nfs_fs_i.h
+++ b/include/linux/nfs_fs_i.h
@@ -1,10 +1,6 @@
#ifndef _NFS_FS_I
#define _NFS_FS_I
-#include <asm/types.h>
-#include <linux/list.h>
-#include <linux/nfs.h>
-
struct nlm_lockowner;
/*
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index ba4d7656ecfd..7073fc74481c 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -3,6 +3,7 @@
#include <linux/list.h>
#include <linux/backing-dev.h>
+#include <linux/idr.h>
#include <linux/wait.h>
#include <linux/nfs_xdr.h>
#include <linux/sunrpc/xprt.h>
@@ -17,6 +18,7 @@ struct nfs4_sequence_res;
struct nfs_server;
struct nfs4_minor_version_ops;
struct server_scope;
+struct nfs41_impl_id;
/*
* The nfs_client identifies our client state to the server.
@@ -85,6 +87,8 @@ struct nfs_client {
#endif
struct server_scope *server_scope; /* from exchange_id */
+ struct nfs41_impl_id *impl_id; /* from exchange_id */
+ struct net *net;
};
/*
@@ -144,15 +148,18 @@ struct nfs_server {
u32 acl_bitmask; /* V4 bitmask representing the ACEs
that are supported on this
filesystem */
+ u32 fh_expire_type; /* V4 bitmask representing file
+ handle volatility type for
+ this filesystem */
struct pnfs_layoutdriver_type *pnfs_curr_ld; /* Active layout driver */
struct rpc_wait_queue roc_rpcwaitq;
void *pnfs_ld_data; /* per mount point data */
/* the following fields are protected by nfs_client->cl_lock */
struct rb_root state_owners;
- struct rb_root openowner_id;
- struct rb_root lockowner_id;
#endif
+ struct ida openowner_id;
+ struct ida lockowner_id;
struct list_head state_owners_lru;
struct list_head layouts;
struct list_head delegations;
@@ -188,21 +195,23 @@ struct nfs_server {
/* maximum number of slots to use */
-#define NFS4_MAX_SLOT_TABLE RPC_MAX_SLOT_TABLE
+#define NFS4_DEF_SLOT_TABLE_SIZE (16U)
+#define NFS4_MAX_SLOT_TABLE (256U)
+#define NFS4_NO_SLOT ((u32)-1)
#if defined(CONFIG_NFS_V4)
/* Sessions */
-#define SLOT_TABLE_SZ (NFS4_MAX_SLOT_TABLE/(8*sizeof(long)))
+#define SLOT_TABLE_SZ DIV_ROUND_UP(NFS4_MAX_SLOT_TABLE, 8*sizeof(long))
struct nfs4_slot_table {
struct nfs4_slot *slots; /* seqid per slot */
unsigned long used_slots[SLOT_TABLE_SZ]; /* used/unused bitmap */
spinlock_t slot_tbl_lock;
struct rpc_wait_queue slot_tbl_waitq; /* allocators may wait here */
- int max_slots; /* # slots in table */
- int highest_used_slotid; /* sent to server on each SEQ.
+ u32 max_slots; /* # slots in table */
+ u32 highest_used_slotid; /* sent to server on each SEQ.
* op for dynamic resizing */
- int target_max_slots; /* Set by CB_RECALL_SLOT as
+ u32 target_max_slots; /* Set by CB_RECALL_SLOT as
* the new max_slots */
struct completion complete;
};
diff --git a/include/linux/nfs_idmap.h b/include/linux/nfs_idmap.h
index 308c18877018..7eed2012d288 100644
--- a/include/linux/nfs_idmap.h
+++ b/include/linux/nfs_idmap.h
@@ -69,36 +69,22 @@ struct nfs_server;
struct nfs_fattr;
struct nfs4_string;
-#ifdef CONFIG_NFS_USE_NEW_IDMAPPER
-
+#ifdef CONFIG_NFS_V4
int nfs_idmap_init(void);
void nfs_idmap_quit(void);
-
-static inline int nfs_idmap_new(struct nfs_client *clp)
-{
- return 0;
-}
-
-static inline void nfs_idmap_delete(struct nfs_client *clp)
-{
-}
-
-#else /* CONFIG_NFS_USE_NEW_IDMAPPER not set */
-
+#else
static inline int nfs_idmap_init(void)
{
return 0;
}
static inline void nfs_idmap_quit(void)
-{
-}
+{}
+#endif
int nfs_idmap_new(struct nfs_client *);
void nfs_idmap_delete(struct nfs_client *);
-#endif /* CONFIG_NFS_USE_NEW_IDMAPPER */
-
void nfs_fattr_init_names(struct nfs_fattr *fattr,
struct nfs4_string *owner_name,
struct nfs4_string *group_name);
diff --git a/include/linux/nfs_iostat.h b/include/linux/nfs_iostat.h
index 8866bb3502ee..9dcbbe9a51fb 100644
--- a/include/linux/nfs_iostat.h
+++ b/include/linux/nfs_iostat.h
@@ -21,7 +21,7 @@
#ifndef _LINUX_NFS_IOSTAT
#define _LINUX_NFS_IOSTAT
-#define NFS_IOSTAT_VERS "1.0"
+#define NFS_IOSTAT_VERS "1.1"
/*
* NFS byte counters
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index ab465fe8c3d6..eac30d6bec17 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -19,12 +19,6 @@
#include <linux/kref.h>
/*
- * Valid flags for the radix tree
- */
-#define NFS_PAGE_TAG_LOCKED 0
-#define NFS_PAGE_TAG_COMMIT 1
-
-/*
* Valid flags for a dirty buffer
*/
enum {
@@ -33,16 +27,13 @@ enum {
PG_CLEAN,
PG_NEED_COMMIT,
PG_NEED_RESCHED,
- PG_PNFS_COMMIT,
PG_PARTIAL_READ_FAILED,
+ PG_COMMIT_TO_DS,
};
struct nfs_inode;
struct nfs_page {
- union {
- struct list_head wb_list; /* Defines state of page: */
- struct pnfs_layout_segment *wb_commit_lseg; /* Used when PG_PNFS_COMMIT set */
- };
+ struct list_head wb_list; /* Defines state of page: */
struct page *wb_page; /* page to read in/write out */
struct nfs_open_context *wb_context; /* File state context info */
struct nfs_lock_context *wb_lock_context; /* lock context info */
@@ -90,8 +81,6 @@ extern struct nfs_page *nfs_create_request(struct nfs_open_context *ctx,
extern void nfs_release_request(struct nfs_page *req);
-extern int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *dst,
- pgoff_t idx_start, unsigned int npages, int tag);
extern void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
struct inode *inode,
const struct nfs_pageio_ops *pg_ops,
@@ -106,8 +95,6 @@ extern bool nfs_generic_pg_test(struct nfs_pageio_descriptor *desc,
struct nfs_page *req);
extern int nfs_wait_on_request(struct nfs_page *);
extern void nfs_unlock_request(struct nfs_page *req);
-extern int nfs_set_page_tag_locked(struct nfs_page *req);
-extern void nfs_clear_page_tag_locked(struct nfs_page *req);
/*
* Lock the page of an asynchronous request without getting a new reference
@@ -118,6 +105,16 @@ nfs_lock_request_dontget(struct nfs_page *req)
return !test_and_set_bit(PG_BUSY, &req->wb_flags);
}
+static inline int
+nfs_lock_request(struct nfs_page *req)
+{
+ if (test_and_set_bit(PG_BUSY, &req->wb_flags))
+ return 0;
+ kref_get(&req->wb_kref);
+ return 1;
+}
+
+
/**
* nfs_list_add_request - Insert a request into a list
* @req: request
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index d6ba9a12591e..bfd0d1bf6707 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -2,7 +2,6 @@
#define _LINUX_NFS_XDR_H
#include <linux/nfsacl.h>
-#include <linux/nfs3.h>
#include <linux/sunrpc/gss_api.h>
/*
@@ -89,11 +88,12 @@ struct nfs_fattr {
#define NFS_ATTR_FATTR_PRECTIME (1U << 16)
#define NFS_ATTR_FATTR_CHANGE (1U << 17)
#define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
-#define NFS_ATTR_FATTR_V4_REFERRAL (1U << 19) /* NFSv4 referral */
-#define NFS_ATTR_FATTR_MOUNTPOINT (1U << 20) /* Treat as mountpoint */
-#define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 21)
-#define NFS_ATTR_FATTR_OWNER_NAME (1U << 22)
-#define NFS_ATTR_FATTR_GROUP_NAME (1U << 23)
+#define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
+#define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
+#define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
+#define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
+#define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
+#define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
#define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
| NFS_ATTR_FATTR_MODE \
@@ -182,7 +182,7 @@ struct nfs4_slot {
struct nfs4_sequence_args {
struct nfs4_session *sa_session;
- u8 sa_slotid;
+ u32 sa_slotid;
u8 sa_cache_this;
};
@@ -977,6 +977,7 @@ struct nfs4_server_caps_res {
u32 acl_bitmask;
u32 has_links;
u32 has_symlinks;
+ u32 fh_expire_type;
struct nfs4_sequence_res seq_res;
};
@@ -1055,14 +1056,6 @@ struct nfstime4 {
};
#ifdef CONFIG_NFS_V4_1
-struct nfs_impl_id4 {
- u32 domain_len;
- char *domain;
- u32 name_len;
- char *name;
- struct nfstime4 date;
-};
-
#define NFS4_EXCHANGE_ID_LEN (48)
struct nfs41_exchange_id_args {
struct nfs_client *client;
@@ -1083,10 +1076,17 @@ struct server_scope {
char server_scope[NFS4_OPAQUE_LIMIT];
};
+struct nfs41_impl_id {
+ char domain[NFS4_OPAQUE_LIMIT + 1];
+ char name[NFS4_OPAQUE_LIMIT + 1];
+ struct nfstime4 date;
+};
+
struct nfs41_exchange_id_res {
struct nfs_client *client;
u32 flags;
struct server_scope *server_scope;
+ struct nfs41_impl_id *impl_id;
};
struct nfs41_create_session_args {
@@ -1192,6 +1192,27 @@ struct nfs_write_data {
struct page *page_array[NFS_PAGEVEC_SIZE];
};
+struct nfs_unlinkdata {
+ struct hlist_node list;
+ struct nfs_removeargs args;
+ struct nfs_removeres res;
+ struct inode *dir;
+ struct rpc_cred *cred;
+ struct nfs_fattr dir_attr;
+};
+
+struct nfs_renamedata {
+ struct nfs_renameargs args;
+ struct nfs_renameres res;
+ struct rpc_cred *cred;
+ struct inode *old_dir;
+ struct dentry *old_dentry;
+ struct nfs_fattr old_fattr;
+ struct inode *new_dir;
+ struct dentry *new_dentry;
+ struct nfs_fattr new_fattr;
+};
+
struct nfs_access_entry;
struct nfs_client;
struct rpc_timeout;
@@ -1221,10 +1242,12 @@ struct nfs_rpc_ops {
struct iattr *, int, struct nfs_open_context *);
int (*remove) (struct inode *, struct qstr *);
void (*unlink_setup) (struct rpc_message *, struct inode *dir);
+ void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
int (*unlink_done) (struct rpc_task *, struct inode *);
int (*rename) (struct inode *, struct qstr *,
struct inode *, struct qstr *);
void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
+ void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
int (*link) (struct inode *, struct inode *, struct qstr *);
int (*symlink) (struct inode *, struct dentry *, struct page *,
@@ -1244,8 +1267,10 @@ struct nfs_rpc_ops {
int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
+ void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
int (*read_done) (struct rpc_task *, struct nfs_read_data *);
void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
+ void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
int (*write_done) (struct rpc_task *, struct nfs_write_data *);
void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
@@ -1275,11 +1300,11 @@ struct nfs_rpc_ops {
extern const struct nfs_rpc_ops nfs_v2_clientops;
extern const struct nfs_rpc_ops nfs_v3_clientops;
extern const struct nfs_rpc_ops nfs_v4_clientops;
-extern struct rpc_version nfs_version2;
-extern struct rpc_version nfs_version3;
-extern struct rpc_version nfs_version4;
+extern const struct rpc_version nfs_version2;
+extern const struct rpc_version nfs_version3;
+extern const struct rpc_version nfs_version4;
-extern struct rpc_version nfsacl_version3;
-extern struct rpc_program nfsacl_program;
+extern const struct rpc_version nfsacl_version3;
+extern const struct rpc_program nfsacl_program;
#endif
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 7874a8a56638..492a36d72829 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -99,6 +99,8 @@ struct rpc_authops {
struct rpc_cred * (*lookup_cred)(struct rpc_auth *, struct auth_cred *, int);
struct rpc_cred * (*crcreate)(struct rpc_auth*, struct auth_cred *, int);
+ int (*pipes_create)(struct rpc_auth *);
+ void (*pipes_destroy)(struct rpc_auth *);
};
struct rpc_credops {
diff --git a/include/linux/sunrpc/bc_xprt.h b/include/linux/sunrpc/bc_xprt.h
index f7f3ce340c08..969c0a671dbf 100644
--- a/include/linux/sunrpc/bc_xprt.h
+++ b/include/linux/sunrpc/bc_xprt.h
@@ -35,7 +35,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
struct rpc_rqst *xprt_alloc_bc_request(struct rpc_xprt *xprt);
void xprt_free_bc_request(struct rpc_rqst *req);
int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs);
-void xprt_destroy_backchannel(struct rpc_xprt *, int max_reqs);
+void xprt_destroy_backchannel(struct rpc_xprt *, unsigned int max_reqs);
int bc_send(struct rpc_rqst *req);
/*
diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
index 57531f8e5956..f5fd6160dbca 100644
--- a/include/linux/sunrpc/cache.h
+++ b/include/linux/sunrpc/cache.h
@@ -117,6 +117,7 @@ struct cache_detail {
struct cache_detail_procfs procfs;
struct cache_detail_pipefs pipefs;
} u;
+ struct net *net;
};
@@ -197,11 +198,14 @@ extern void cache_flush(void);
extern void cache_purge(struct cache_detail *detail);
#define NEVER (0x7FFFFFFF)
extern void __init cache_initialize(void);
-extern int cache_register(struct cache_detail *cd);
extern int cache_register_net(struct cache_detail *cd, struct net *net);
-extern void cache_unregister(struct cache_detail *cd);
extern void cache_unregister_net(struct cache_detail *cd, struct net *net);
+extern struct cache_detail *cache_create_net(struct cache_detail *tmpl, struct net *net);
+extern void cache_destroy_net(struct cache_detail *cd, struct net *net);
+
+extern void sunrpc_init_cache_detail(struct cache_detail *cd);
+extern void sunrpc_destroy_cache_detail(struct cache_detail *cd);
extern int sunrpc_cache_register_pipefs(struct dentry *parent, const char *,
umode_t, struct cache_detail *);
extern void sunrpc_cache_unregister_pipefs(struct cache_detail *);
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 2c5993a17c33..523547ecfee2 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -35,14 +35,13 @@ struct rpc_clnt {
struct list_head cl_clients; /* Global list of clients */
struct list_head cl_tasks; /* List of tasks */
spinlock_t cl_lock; /* spinlock */
- struct rpc_xprt * cl_xprt; /* transport */
+ struct rpc_xprt __rcu * cl_xprt; /* transport */
struct rpc_procinfo * cl_procinfo; /* procedure info */
u32 cl_prog, /* RPC program number */
cl_vers, /* RPC version number */
cl_maxproc; /* max procedure number */
- char * cl_server; /* server machine name */
- char * cl_protname; /* protocol name */
+ const char * cl_protname; /* protocol name */
struct rpc_auth * cl_auth; /* authenticator */
struct rpc_stat * cl_stats; /* per-program statistics */
struct rpc_iostats * cl_metrics; /* per-client statistics */
@@ -57,12 +56,11 @@ struct rpc_clnt {
int cl_nodelen; /* nodename length */
char cl_nodename[UNX_MAXNODENAME];
- struct path cl_path;
+ struct dentry * cl_dentry;
struct rpc_clnt * cl_parent; /* Points to parent of clones */
struct rpc_rtt cl_rtt_default;
struct rpc_timeout cl_timeout_default;
- struct rpc_program * cl_program;
- char cl_inline_name[32];
+ const struct rpc_program *cl_program;
char *cl_principal; /* target to authenticate to */
};
@@ -71,12 +69,12 @@ struct rpc_clnt {
*/
#define RPC_MAXVERSION 4
struct rpc_program {
- char * name; /* protocol name */
+ const char * name; /* protocol name */
u32 number; /* program number */
unsigned int nrvers; /* number of versions */
- struct rpc_version ** version; /* version array */
+ const struct rpc_version ** version; /* version array */
struct rpc_stat * stats; /* statistics */
- char * pipe_dir_name; /* path to rpc_pipefs dir */
+ const char * pipe_dir_name; /* path to rpc_pipefs dir */
};
struct rpc_version {
@@ -97,7 +95,7 @@ struct rpc_procinfo {
unsigned int p_count; /* call count */
unsigned int p_timer; /* Which RTT timer to use */
u32 p_statidx; /* Which procedure to account */
- char * p_name; /* name of procedure */
+ const char * p_name; /* name of procedure */
};
#ifdef __KERNEL__
@@ -109,8 +107,8 @@ struct rpc_create_args {
size_t addrsize;
struct sockaddr *saddress;
const struct rpc_timeout *timeout;
- char *servername;
- struct rpc_program *program;
+ const char *servername;
+ const struct rpc_program *program;
u32 prognumber; /* overrides program->number */
u32 version;
rpc_authflavor_t authflavor;
@@ -129,17 +127,18 @@ struct rpc_create_args {
struct rpc_clnt *rpc_create(struct rpc_create_args *args);
struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *,
- struct rpc_program *, u32);
+ const struct rpc_program *, u32);
void rpc_task_reset_client(struct rpc_task *task, struct rpc_clnt *clnt);
struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
void rpc_shutdown_client(struct rpc_clnt *);
void rpc_release_client(struct rpc_clnt *);
void rpc_task_release_client(struct rpc_task *);
-int rpcb_create_local(void);
-void rpcb_put_local(void);
-int rpcb_register(u32, u32, int, unsigned short);
-int rpcb_v4_register(const u32 program, const u32 version,
+int rpcb_create_local(struct net *);
+void rpcb_put_local(struct net *);
+int rpcb_register(struct net *, u32, u32, int, unsigned short);
+int rpcb_v4_register(struct net *net, const u32 program,
+ const u32 version,
const struct sockaddr *address,
const char *netid);
void rpcb_getport_async(struct rpc_task *);
@@ -156,16 +155,19 @@ struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred,
int rpc_restart_call_prepare(struct rpc_task *);
int rpc_restart_call(struct rpc_task *);
void rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
+int rpc_protocol(struct rpc_clnt *);
+struct net * rpc_net_ns(struct rpc_clnt *);
size_t rpc_max_payload(struct rpc_clnt *);
void rpc_force_rebind(struct rpc_clnt *);
size_t rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t);
const char *rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t);
+int rpc_localaddr(struct rpc_clnt *, struct sockaddr *, size_t);
size_t rpc_ntop(const struct sockaddr *, char *, const size_t);
-size_t rpc_pton(const char *, const size_t,
+size_t rpc_pton(struct net *, const char *, const size_t,
struct sockaddr *, const size_t);
char * rpc_sockaddr2uaddr(const struct sockaddr *, gfp_t);
-size_t rpc_uaddr2sockaddr(const char *, const size_t,
+size_t rpc_uaddr2sockaddr(struct net *, const char *, const size_t,
struct sockaddr *, const size_t);
static inline unsigned short rpc_get_port(const struct sockaddr *sap)
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index c2786f20016f..a76cc20d98ce 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -31,9 +31,12 @@
/*
* Enable RPC debugging/profiling.
*/
-#ifdef CONFIG_SYSCTL
+#ifdef CONFIG_SUNRPC_DEBUG
#define RPC_DEBUG
#endif
+#ifdef CONFIG_TRACEPOINTS
+#define RPC_TRACEPOINTS
+#endif
/* #define RPC_PROFILE */
/*
@@ -47,15 +50,32 @@ extern unsigned int nlm_debug;
#endif
#define dprintk(args...) dfprintk(FACILITY, ## args)
+#define dprintk_rcu(args...) dfprintk_rcu(FACILITY, ## args)
#undef ifdebug
#ifdef RPC_DEBUG
# define ifdebug(fac) if (unlikely(rpc_debug & RPCDBG_##fac))
-# define dfprintk(fac, args...) do { ifdebug(fac) printk(args); } while(0)
+
+# define dfprintk(fac, args...) \
+ do { \
+ ifdebug(fac) \
+ printk(KERN_DEFAULT args); \
+ } while (0)
+
+# define dfprintk_rcu(fac, args...) \
+ do { \
+ ifdebug(fac) { \
+ rcu_read_lock(); \
+ printk(KERN_DEFAULT args); \
+ rcu_read_unlock(); \
+ } \
+ } while (0)
+
# define RPC_IFDEBUG(x) x
#else
# define ifdebug(fac) if (0)
-# define dfprintk(fac, args...) do ; while (0)
+# define dfprintk(fac, args...) do {} while (0)
+# define dfprintk_rcu(fac, args...) do {} while (0)
# define RPC_IFDEBUG(x)
#endif
diff --git a/include/linux/sunrpc/metrics.h b/include/linux/sunrpc/metrics.h
index b6edbc0ea83d..1565bbe86d51 100644
--- a/include/linux/sunrpc/metrics.h
+++ b/include/linux/sunrpc/metrics.h
@@ -74,14 +74,16 @@ struct rpc_clnt;
#ifdef CONFIG_PROC_FS
struct rpc_iostats * rpc_alloc_iostats(struct rpc_clnt *);
-void rpc_count_iostats(struct rpc_task *);
+void rpc_count_iostats(const struct rpc_task *,
+ struct rpc_iostats *);
void rpc_print_iostats(struct seq_file *, struct rpc_clnt *);
void rpc_free_iostats(struct rpc_iostats *);
#else /* CONFIG_PROC_FS */
static inline struct rpc_iostats *rpc_alloc_iostats(struct rpc_clnt *clnt) { return NULL; }
-static inline void rpc_count_iostats(struct rpc_task *task) {}
+static inline void rpc_count_iostats(const struct rpc_task *task,
+ struct rpc_iostats *stats) {}
static inline void rpc_print_iostats(struct seq_file *seq, struct rpc_clnt *clnt) {}
static inline void rpc_free_iostats(struct rpc_iostats *stats) {}
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index 2bb03d77375a..a7b422b33eda 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -21,21 +21,26 @@ struct rpc_pipe_ops {
void (*destroy_msg)(struct rpc_pipe_msg *);
};
-struct rpc_inode {
- struct inode vfs_inode;
- void *private;
+struct rpc_pipe {
struct list_head pipe;
struct list_head in_upcall;
struct list_head in_downcall;
int pipelen;
int nreaders;
int nwriters;
- int nkern_readwriters;
- wait_queue_head_t waitq;
#define RPC_PIPE_WAIT_FOR_OPEN 1
int flags;
struct delayed_work queue_timeout;
const struct rpc_pipe_ops *ops;
+ spinlock_t lock;
+ struct dentry *dentry;
+};
+
+struct rpc_inode {
+ struct inode vfs_inode;
+ void *private;
+ struct rpc_pipe *pipe;
+ wait_queue_head_t waitq;
};
static inline struct rpc_inode *
@@ -44,9 +49,28 @@ RPC_I(struct inode *inode)
return container_of(inode, struct rpc_inode, vfs_inode);
}
+enum {
+ SUNRPC_PIPEFS_NFS_PRIO,
+ SUNRPC_PIPEFS_RPC_PRIO,
+};
+
+extern int rpc_pipefs_notifier_register(struct notifier_block *);
+extern void rpc_pipefs_notifier_unregister(struct notifier_block *);
+
+enum {
+ RPC_PIPEFS_MOUNT,
+ RPC_PIPEFS_UMOUNT,
+};
+
+extern struct dentry *rpc_d_lookup_sb(const struct super_block *sb,
+ const unsigned char *dir_name);
+extern void rpc_pipefs_init_net(struct net *net);
+extern struct super_block *rpc_get_sb_net(const struct net *net);
+extern void rpc_put_sb_net(const struct net *net);
+
extern ssize_t rpc_pipe_generic_upcall(struct file *, struct rpc_pipe_msg *,
char __user *, size_t);
-extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
+extern int rpc_queue_upcall(struct rpc_pipe *, struct rpc_pipe_msg *);
struct rpc_clnt;
extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
@@ -59,11 +83,13 @@ extern struct dentry *rpc_create_cache_dir(struct dentry *,
struct cache_detail *);
extern void rpc_remove_cache_dir(struct dentry *);
-extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *,
- const struct rpc_pipe_ops *, int flags);
+extern int rpc_rmdir(struct dentry *dentry);
+
+struct rpc_pipe *rpc_mkpipe_data(const struct rpc_pipe_ops *ops, int flags);
+void rpc_destroy_pipe_data(struct rpc_pipe *pipe);
+extern struct dentry *rpc_mkpipe_dentry(struct dentry *, const char *, void *,
+ struct rpc_pipe *);
extern int rpc_unlink(struct dentry *);
-extern struct vfsmount *rpc_get_mount(void);
-extern void rpc_put_mount(void);
extern int register_rpc_pipefs(void);
extern void unregister_rpc_pipefs(void);
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index e7756896f3ca..dc0c3cc3ada3 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -103,6 +103,7 @@ typedef void (*rpc_action)(struct rpc_task *);
struct rpc_call_ops {
void (*rpc_call_prepare)(struct rpc_task *, void *);
void (*rpc_call_done)(struct rpc_task *, void *);
+ void (*rpc_count_stats)(struct rpc_task *, void *);
void (*rpc_release)(void *);
};
@@ -195,7 +196,7 @@ struct rpc_wait_queue {
unsigned char nr; /* # tasks remaining for cookie */
unsigned short qlen; /* total # tasks waiting in queue */
struct rpc_timer timer_list;
-#ifdef RPC_DEBUG
+#if defined(RPC_DEBUG) || defined(RPC_TRACEPOINTS)
const char * name;
#endif
};
@@ -235,6 +236,9 @@ void rpc_wake_up_queued_task(struct rpc_wait_queue *,
struct rpc_task *);
void rpc_wake_up(struct rpc_wait_queue *);
struct rpc_task *rpc_wake_up_next(struct rpc_wait_queue *);
+struct rpc_task *rpc_wake_up_first(struct rpc_wait_queue *,
+ bool (*)(struct rpc_task *, void *),
+ void *);
void rpc_wake_up_status(struct rpc_wait_queue *, int);
int rpc_queue_empty(struct rpc_wait_queue *);
void rpc_delay(struct rpc_task *, unsigned long);
@@ -244,7 +248,8 @@ int rpciod_up(void);
void rpciod_down(void);
int __rpc_wait_for_completion_task(struct rpc_task *task, int (*)(void *));
#ifdef RPC_DEBUG
-void rpc_show_tasks(void);
+struct net;
+void rpc_show_tasks(struct net *);
#endif
int rpc_init_mempool(void);
void rpc_destroy_mempool(void);
@@ -266,11 +271,22 @@ static inline int rpc_task_has_priority(struct rpc_task *task, unsigned char pri
return (task->tk_priority + RPC_PRIORITY_LOW == prio);
}
-#ifdef RPC_DEBUG
-static inline const char * rpc_qname(struct rpc_wait_queue *q)
+#if defined(RPC_DEBUG) || defined (RPC_TRACEPOINTS)
+static inline const char * rpc_qname(const struct rpc_wait_queue *q)
{
return ((q && q->name) ? q->name : "unknown");
}
+
+static inline void rpc_assign_waitqueue_name(struct rpc_wait_queue *q,
+ const char *name)
+{
+ q->name = name;
+}
+#else
+static inline void rpc_assign_waitqueue_name(struct rpc_wait_queue *q,
+ const char *name)
+{
+}
#endif
#endif /* _LINUX_SUNRPC_SCHED_H_ */
diff --git a/include/linux/sunrpc/stats.h b/include/linux/sunrpc/stats.h
index 680471d1f28a..edc64219f92b 100644
--- a/include/linux/sunrpc/stats.h
+++ b/include/linux/sunrpc/stats.h
@@ -12,7 +12,7 @@
#include <linux/proc_fs.h>
struct rpc_stat {
- struct rpc_program * program;
+ const struct rpc_program *program;
unsigned int netcnt,
netudpcnt,
@@ -58,24 +58,24 @@ void rpc_modcount(struct inode *, int);
#endif
#ifdef CONFIG_PROC_FS
-struct proc_dir_entry * rpc_proc_register(struct rpc_stat *);
-void rpc_proc_unregister(const char *);
-void rpc_proc_zero(struct rpc_program *);
-struct proc_dir_entry * svc_proc_register(struct svc_stat *,
+struct proc_dir_entry * rpc_proc_register(struct net *,struct rpc_stat *);
+void rpc_proc_unregister(struct net *,const char *);
+void rpc_proc_zero(const struct rpc_program *);
+struct proc_dir_entry * svc_proc_register(struct net *, struct svc_stat *,
const struct file_operations *);
-void svc_proc_unregister(const char *);
+void svc_proc_unregister(struct net *, const char *);
void svc_seq_show(struct seq_file *,
const struct svc_stat *);
#else
-static inline struct proc_dir_entry *rpc_proc_register(struct rpc_stat *s) { return NULL; }
-static inline void rpc_proc_unregister(const char *p) {}
-static inline void rpc_proc_zero(struct rpc_program *p) {}
+static inline struct proc_dir_entry *rpc_proc_register(struct net *net, struct rpc_stat *s) { return NULL; }
+static inline void rpc_proc_unregister(struct net *net, const char *p) {}
+static inline void rpc_proc_zero(const struct rpc_program *p) {}
-static inline struct proc_dir_entry *svc_proc_register(struct svc_stat *s,
+static inline struct proc_dir_entry *svc_proc_register(struct net *net, struct svc_stat *s,
const struct file_operations *f) { return NULL; }
-static inline void svc_proc_unregister(const char *p) {}
+static inline void svc_proc_unregister(struct net *net, const char *p) {}
static inline void svc_seq_show(struct seq_file *seq,
const struct svc_stat *st) {}
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 35b37b1e9299..51b29ac45a8e 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -84,7 +84,8 @@ struct svc_serv {
unsigned int sv_nrpools; /* number of thread pools */
struct svc_pool * sv_pools; /* array of thread pools */
- void (*sv_shutdown)(struct svc_serv *serv);
+ void (*sv_shutdown)(struct svc_serv *serv,
+ struct net *net);
/* Callback to use when last thread
* exits.
*/
@@ -413,22 +414,24 @@ struct svc_procedure {
/*
* Function prototypes.
*/
-void svc_rpcb_cleanup(struct svc_serv *serv);
+int svc_rpcb_setup(struct svc_serv *serv, struct net *net);
+void svc_rpcb_cleanup(struct svc_serv *serv, struct net *net);
struct svc_serv *svc_create(struct svc_program *, unsigned int,
- void (*shutdown)(struct svc_serv *));
+ void (*shutdown)(struct svc_serv *, struct net *net));
struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
struct svc_pool *pool, int node);
void svc_exit_thread(struct svc_rqst *);
struct svc_serv * svc_create_pooled(struct svc_program *, unsigned int,
- void (*shutdown)(struct svc_serv *),
+ void (*shutdown)(struct svc_serv *, struct net *net),
svc_thread_fn, struct module *);
int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int);
int svc_pool_stats_open(struct svc_serv *serv, struct file *file);
void svc_destroy(struct svc_serv *);
+void svc_shutdown_net(struct svc_serv *, struct net *);
int svc_process(struct svc_rqst *);
int bc_svc_process(struct svc_serv *, struct rpc_rqst *,
struct svc_rqst *);
-int svc_register(const struct svc_serv *, const int,
+int svc_register(const struct svc_serv *, struct net *, const int,
const unsigned short, const unsigned short);
void svc_wake_up(struct svc_serv *);
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index dfa900948af7..b3f64b12f141 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -121,7 +121,8 @@ void svc_close_xprt(struct svc_xprt *xprt);
int svc_port_is_privileged(struct sockaddr *sin);
int svc_print_xprts(char *buf, int maxlen);
struct svc_xprt *svc_find_xprt(struct svc_serv *serv, const char *xcl_name,
- const sa_family_t af, const unsigned short port);
+ struct net *net, const sa_family_t af,
+ const unsigned short port);
int svc_xprt_names(struct svc_serv *serv, char *buf, const int buflen);
static inline void svc_xprt_get(struct svc_xprt *xprt)
diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
index 25d333c1b571..548790e9113b 100644
--- a/include/linux/sunrpc/svcauth.h
+++ b/include/linux/sunrpc/svcauth.h
@@ -135,6 +135,9 @@ extern void svcauth_unix_purge(void);
extern void svcauth_unix_info_release(struct svc_xprt *xpt);
extern int svcauth_unix_set_client(struct svc_rqst *rqstp);
+extern int unix_gid_cache_create(struct net *net);
+extern void unix_gid_cache_destroy(struct net *net);
+
static inline unsigned long hash_str(char *name, int bits)
{
unsigned long hash = 0;
diff --git a/include/linux/sunrpc/svcauth_gss.h b/include/linux/sunrpc/svcauth_gss.h
index 83bbee3f089c..7c32daa025eb 100644
--- a/include/linux/sunrpc/svcauth_gss.h
+++ b/include/linux/sunrpc/svcauth_gss.h
@@ -18,6 +18,8 @@
int gss_svc_init(void);
void gss_svc_shutdown(void);
+int gss_svc_init_net(struct net *net);
+void gss_svc_shutdown_net(struct net *net);
int svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name);
u32 svcauth_gss_flavor(struct auth_domain *dom);
char *svc_gss_principal(struct svc_rqst *);
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index c84e9741cb2a..cb4ac69e1f33 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -34,7 +34,7 @@ struct svc_sock {
/*
* Function prototypes.
*/
-void svc_close_all(struct svc_serv *);
+void svc_close_net(struct svc_serv *, struct net *);
int svc_recv(struct svc_rqst *, long);
int svc_send(struct svc_rqst *);
void svc_drop(struct svc_rqst *);
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 15518a152ac3..77d278defa70 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -21,8 +21,8 @@
#define RPC_MIN_SLOT_TABLE (2U)
#define RPC_DEF_SLOT_TABLE (16U)
-#define RPC_MAX_SLOT_TABLE (128U)
#define RPC_MAX_SLOT_TABLE_LIMIT (65536U)
+#define RPC_MAX_SLOT_TABLE RPC_MAX_SLOT_TABLE_LIMIT
/*
* This describes a timeout strategy
@@ -219,13 +219,17 @@ struct rpc_xprt {
connect_time, /* jiffies waiting for connect */
sends, /* how many complete requests */
recvs, /* how many complete requests */
- bad_xids; /* lookup_rqst didn't find XID */
+ bad_xids, /* lookup_rqst didn't find XID */
+ max_slots; /* max rpc_slots used */
unsigned long long req_u, /* average requests on the wire */
- bklog_u; /* backlog queue utilization */
+ bklog_u, /* backlog queue utilization */
+ sending_u, /* send q utilization */
+ pending_u; /* pend q utilization */
} stat;
struct net *xprt_net;
+ const char *servername;
const char *address_strings[RPC_DISPLAY_MAX];
};
@@ -255,6 +259,7 @@ struct xprt_create {
struct sockaddr * srcaddr; /* optional local address */
struct sockaddr * dstaddr; /* remote peer address */
size_t addrlen;
+ const char *servername;
struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */
};
diff --git a/include/linux/sunrpc/xprtsock.h b/include/linux/sunrpc/xprtsock.h
index 3f14a02e9cc0..1ad36cc25b2e 100644
--- a/include/linux/sunrpc/xprtsock.h
+++ b/include/linux/sunrpc/xprtsock.h
@@ -12,18 +12,6 @@
int init_socket_xprt(void);
void cleanup_socket_xprt(void);
-/*
- * RPC slot table sizes for UDP, TCP transports
- */
-extern unsigned int xprt_udp_slot_table_entries;
-extern unsigned int xprt_tcp_slot_table_entries;
-
-/*
- * Parameters for choosing a free port
- */
-extern unsigned int xprt_min_resvport;
-extern unsigned int xprt_max_resvport;
-
#define RPC_MIN_RESVPORT (1U)
#define RPC_MAX_RESVPORT (65535U)
#define RPC_DEF_MIN_RESVPORT (665U)
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
new file mode 100644
index 000000000000..43be87d5dd58
--- /dev/null
+++ b/include/trace/events/sunrpc.h
@@ -0,0 +1,177 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM sunrpc
+
+#if !defined(_TRACE_SUNRPC_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_SUNRPC_H
+
+#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(rpc_task_status,
+
+ TP_PROTO(struct rpc_task *task),
+
+ TP_ARGS(task),
+
+ TP_STRUCT__entry(
+ __field(const struct rpc_task *, task)
+ __field(const struct rpc_clnt *, clnt)
+ __field(int, status)
+ ),
+
+ TP_fast_assign(
+ __entry->task = task;
+ __entry->clnt = task->tk_client;
+ __entry->status = task->tk_status;
+ ),
+
+ TP_printk("task:%p@%p, status %d",__entry->task, __entry->clnt, __entry->status)
+);
+
+DEFINE_EVENT(rpc_task_status, rpc_call_status,
+ TP_PROTO(struct rpc_task *task),
+
+ TP_ARGS(task)
+);
+
+DEFINE_EVENT(rpc_task_status, rpc_bind_status,
+ TP_PROTO(struct rpc_task *task),
+
+ TP_ARGS(task)
+);
+
+TRACE_EVENT(rpc_connect_status,
+ TP_PROTO(struct rpc_task *task, int status),
+
+ TP_ARGS(task, status),
+
+ TP_STRUCT__entry(
+ __field(const struct rpc_task *, task)
+ __field(const struct rpc_clnt *, clnt)
+ __field(int, status)
+ ),
+
+ TP_fast_assign(
+ __entry->task = task;
+ __entry->clnt = task->tk_client;
+ __entry->status = status;
+ ),
+
+ TP_printk("task:%p@%p, status %d",__entry->task, __entry->clnt, __entry->status)
+);
+
+DECLARE_EVENT_CLASS(rpc_task_running,
+
+ TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),
+
+ TP_ARGS(clnt, task, action),
+
+ TP_STRUCT__entry(
+ __field(const struct rpc_clnt *, clnt)
+ __field(const struct rpc_task *, task)
+ __field(const void *, action)
+ __field(unsigned long, runstate)
+ __field(int, status)
+ __field(unsigned short, flags)
+ ),
+
+ TP_fast_assign(
+ __entry->clnt = clnt;
+ __entry->task = task;
+ __entry->action = action;
+ __entry->runstate = task->tk_runstate;
+ __entry->status = task->tk_status;
+ __entry->flags = task->tk_flags;
+ ),
+
+ TP_printk("task:%p@%p flags=%4.4x state=%4.4lx status=%d action=%pf",
+ __entry->task,
+ __entry->clnt,
+ __entry->flags,
+ __entry->runstate,
+ __entry->status,
+ __entry->action
+ )
+);
+
+DEFINE_EVENT(rpc_task_running, rpc_task_begin,
+
+ TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),
+
+ TP_ARGS(clnt, task, action)
+
+);
+
+DEFINE_EVENT(rpc_task_running, rpc_task_run_action,
+
+ TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),
+
+ TP_ARGS(clnt, task, action)
+
+);
+
+DEFINE_EVENT(rpc_task_running, rpc_task_complete,
+
+ TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),
+
+ TP_ARGS(clnt, task, action)
+
+);
+
+DECLARE_EVENT_CLASS(rpc_task_queued,
+
+ TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const struct rpc_wait_queue *q),
+
+ TP_ARGS(clnt, task, q),
+
+ TP_STRUCT__entry(
+ __field(const struct rpc_clnt *, clnt)
+ __field(const struct rpc_task *, task)
+ __field(unsigned long, timeout)
+ __field(unsigned long, runstate)
+ __field(int, status)
+ __field(unsigned short, flags)
+ __string(q_name, rpc_qname(q))
+ ),
+
+ TP_fast_assign(
+ __entry->clnt = clnt;
+ __entry->task = task;
+ __entry->timeout = task->tk_timeout;
+ __entry->runstate = task->tk_runstate;
+ __entry->status = task->tk_status;
+ __entry->flags = task->tk_flags;
+ __assign_str(q_name, rpc_qname(q));
+ ),
+
+ TP_printk("task:%p@%p flags=%4.4x state=%4.4lx status=%d timeout=%lu queue=%s",
+ __entry->task,
+ __entry->clnt,
+ __entry->flags,
+ __entry->runstate,
+ __entry->status,
+ __entry->timeout,
+ __get_str(q_name)
+ )
+);
+
+DEFINE_EVENT(rpc_task_queued, rpc_task_sleep,
+
+ TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const struct rpc_wait_queue *q),
+
+ TP_ARGS(clnt, task, q)
+
+);
+
+DEFINE_EVENT(rpc_task_queued, rpc_task_wakeup,
+
+ TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const struct rpc_wait_queue *q),
+
+ TP_ARGS(clnt, task, q)
+
+);
+
+#endif /* _TRACE_SUNRPC_H */
+
+#include <trace/define_trace.h>
diff --git a/net/sunrpc/Kconfig b/net/sunrpc/Kconfig
index ffd243d09188..9fe8857d8d59 100644
--- a/net/sunrpc/Kconfig
+++ b/net/sunrpc/Kconfig
@@ -39,3 +39,16 @@ config RPCSEC_GSS_KRB5
Kerberos support should be installed.
If unsure, say Y.
+
+config SUNRPC_DEBUG
+ bool "RPC: Enable dprintk debugging"
+ depends on SUNRPC && SYSCTL
+ help
+ This option enables a sysctl-based debugging interface
+ that is be used by the 'rpcdebug' utility to turn on or off
+ logging of different aspects of the kernel RPC activity.
+
+ Disabling this option will make your kernel slightly smaller,
+ but makes troubleshooting NFS issues significantly harder.
+
+ If unsure, say Y.
diff --git a/net/sunrpc/addr.c b/net/sunrpc/addr.c
index ee77742e0ed6..d11418f97f1f 100644
--- a/net/sunrpc/addr.c
+++ b/net/sunrpc/addr.c
@@ -156,8 +156,9 @@ static size_t rpc_pton4(const char *buf, const size_t buflen,
}
#if IS_ENABLED(CONFIG_IPV6)
-static int rpc_parse_scope_id(const char *buf, const size_t buflen,
- const char *delim, struct sockaddr_in6 *sin6)
+static int rpc_parse_scope_id(struct net *net, const char *buf,
+ const size_t buflen, const char *delim,
+ struct sockaddr_in6 *sin6)
{
char *p;
size_t len;
@@ -177,7 +178,7 @@ static int rpc_parse_scope_id(const char *buf, const size_t buflen,
unsigned long scope_id = 0;
struct net_device *dev;
- dev = dev_get_by_name(&init_net, p);
+ dev = dev_get_by_name(net, p);
if (dev != NULL) {
scope_id = dev->ifindex;
dev_put(dev);
@@ -197,7 +198,7 @@ static int rpc_parse_scope_id(const char *buf, const size_t buflen,
return 0;
}
-static size_t rpc_pton6(const char *buf, const size_t buflen,
+static size_t rpc_pton6(struct net *net, const char *buf, const size_t buflen,
struct sockaddr *sap, const size_t salen)
{
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
@@ -213,14 +214,14 @@ static size_t rpc_pton6(const char *buf, const size_t buflen,
if (in6_pton(buf, buflen, addr, IPV6_SCOPE_DELIMITER, &delim) == 0)
return 0;
- if (!rpc_parse_scope_id(buf, buflen, delim, sin6))
+ if (!rpc_parse_scope_id(net, buf, buflen, delim, sin6))
return 0;
sin6->sin6_family = AF_INET6;
return sizeof(struct sockaddr_in6);
}
#else
-static size_t rpc_pton6(const char *buf, const size_t buflen,
+static size_t rpc_pton6(struct net *net, const char *buf, const size_t buflen,
struct sockaddr *sap, const size_t salen)
{
return 0;
@@ -229,6 +230,7 @@ static size_t rpc_pton6(const char *buf, const size_t buflen,
/**
* rpc_pton - Construct a sockaddr in @sap
+ * @net: applicable network namespace
* @buf: C string containing presentation format IP address
* @buflen: length of presentation address in bytes
* @sap: buffer into which to plant socket address
@@ -241,14 +243,14 @@ static size_t rpc_pton6(const char *buf, const size_t buflen,
* socket address, if successful. Returns zero if an error
* occurred.
*/
-size_t rpc_pton(const char *buf, const size_t buflen,
+size_t rpc_pton(struct net *net, const char *buf, const size_t buflen,
struct sockaddr *sap, const size_t salen)
{
unsigned int i;
for (i = 0; i < buflen; i++)
if (buf[i] == ':')
- return rpc_pton6(buf, buflen, sap, salen);
+ return rpc_pton6(net, buf, buflen, sap, salen);
return rpc_pton4(buf, buflen, sap, salen);
}
EXPORT_SYMBOL_GPL(rpc_pton);
@@ -295,6 +297,7 @@ char *rpc_sockaddr2uaddr(const struct sockaddr *sap, gfp_t gfp_flags)
/**
* rpc_uaddr2sockaddr - convert a universal address to a socket address.
+ * @net: applicable network namespace
* @uaddr: C string containing universal address to convert
* @uaddr_len: length of universal address string
* @sap: buffer into which to plant socket address
@@ -306,8 +309,9 @@ char *rpc_sockaddr2uaddr(const struct sockaddr *sap, gfp_t gfp_flags)
* Returns the size of the socket address if successful; otherwise
* zero is returned.
*/
-size_t rpc_uaddr2sockaddr(const char *uaddr, const size_t uaddr_len,
- struct sockaddr *sap, const size_t salen)
+size_t rpc_uaddr2sockaddr(struct net *net, const char *uaddr,
+ const size_t uaddr_len, struct sockaddr *sap,
+ const size_t salen)
{
char *c, buf[RPCBIND_MAXUADDRLEN + sizeof('\0')];
unsigned long portlo, porthi;
@@ -339,7 +343,7 @@ size_t rpc_uaddr2sockaddr(const char *uaddr, const size_t uaddr_len,
port = (unsigned short)((porthi << 8) | portlo);
*c = '\0';
- if (rpc_pton(buf, strlen(buf), sap, salen) == 0)
+ if (rpc_pton(net, buf, strlen(buf), sap, salen) == 0)
return 0;
switch (sap->sa_family) {
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index affa631ac1ab..d3ad81f8da5b 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -81,7 +81,7 @@ struct gss_auth {
* mechanism (for example, "krb5") and exists for
* backwards-compatibility with older gssd's.
*/
- struct dentry *dentry[2];
+ struct rpc_pipe *pipe[2];
};
/* pipe_version >= 0 if and only if someone has a pipe open. */
@@ -112,7 +112,7 @@ gss_put_ctx(struct gss_cl_ctx *ctx)
/* gss_cred_set_ctx:
* called by gss_upcall_callback and gss_create_upcall in order
* to set the gss context. The actual exchange of an old context
- * and a new one is protected by the inode->i_lock.
+ * and a new one is protected by the pipe->lock.
*/
static void
gss_cred_set_ctx(struct rpc_cred *cred, struct gss_cl_ctx *ctx)
@@ -251,7 +251,7 @@ struct gss_upcall_msg {
struct rpc_pipe_msg msg;
struct list_head list;
struct gss_auth *auth;
- struct rpc_inode *inode;
+ struct rpc_pipe *pipe;
struct rpc_wait_queue rpc_waitqueue;
wait_queue_head_t waitqueue;
struct gss_cl_ctx *ctx;
@@ -294,10 +294,10 @@ gss_release_msg(struct gss_upcall_msg *gss_msg)
}
static struct gss_upcall_msg *
-__gss_find_upcall(struct rpc_inode *rpci, uid_t uid)
+__gss_find_upcall(struct rpc_pipe *pipe, uid_t uid)
{
struct gss_upcall_msg *pos;
- list_for_each_entry(pos, &rpci->in_downcall, list) {
+ list_for_each_entry(pos, &pipe->in_downcall, list) {
if (pos->uid != uid)
continue;
atomic_inc(&pos->count);
@@ -315,18 +315,17 @@ __gss_find_upcall(struct rpc_inode *rpci, uid_t uid)
static inline struct gss_upcall_msg *
gss_add_msg(struct gss_upcall_msg *gss_msg)
{
- struct rpc_inode *rpci = gss_msg->inode;
- struct inode *inode = &rpci->vfs_inode;
+ struct rpc_pipe *pipe = gss_msg->pipe;
struct gss_upcall_msg *old;
- spin_lock(&inode->i_lock);
- old = __gss_find_upcall(rpci, gss_msg->uid);
+ spin_lock(&pipe->lock);
+ old = __gss_find_upcall(pipe, gss_msg->uid);
if (old == NULL) {
atomic_inc(&gss_msg->count);
- list_add(&gss_msg->list, &rpci->in_downcall);
+ list_add(&gss_msg->list, &pipe->in_downcall);
} else
gss_msg = old;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
return gss_msg;
}
@@ -342,14 +341,14 @@ __gss_unhash_msg(struct gss_upcall_msg *gss_msg)
static void
gss_unhash_msg(struct gss_upcall_msg *gss_msg)
{
- struct inode *inode = &gss_msg->inode->vfs_inode;
+ struct rpc_pipe *pipe = gss_msg->pipe;
if (list_empty(&gss_msg->list))
return;
- spin_lock(&inode->i_lock);
+ spin_lock(&pipe->lock);
if (!list_empty(&gss_msg->list))
__gss_unhash_msg(gss_msg);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
}
static void
@@ -376,11 +375,11 @@ gss_upcall_callback(struct rpc_task *task)
struct gss_cred *gss_cred = container_of(task->tk_rqstp->rq_cred,
struct gss_cred, gc_base);
struct gss_upcall_msg *gss_msg = gss_cred->gc_upcall;
- struct inode *inode = &gss_msg->inode->vfs_inode;
+ struct rpc_pipe *pipe = gss_msg->pipe;
- spin_lock(&inode->i_lock);
+ spin_lock(&pipe->lock);
gss_handle_downcall_result(gss_cred, gss_msg);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
task->tk_status = gss_msg->msg.errno;
gss_release_msg(gss_msg);
}
@@ -450,7 +449,7 @@ gss_alloc_msg(struct gss_auth *gss_auth, struct rpc_clnt *clnt,
kfree(gss_msg);
return ERR_PTR(vers);
}
- gss_msg->inode = RPC_I(gss_auth->dentry[vers]->d_inode);
+ gss_msg->pipe = gss_auth->pipe[vers];
INIT_LIST_HEAD(&gss_msg->list);
rpc_init_wait_queue(&gss_msg->rpc_waitqueue, "RPCSEC_GSS upcall waitq");
init_waitqueue_head(&gss_msg->waitqueue);
@@ -474,8 +473,7 @@ gss_setup_upcall(struct rpc_clnt *clnt, struct gss_auth *gss_auth, struct rpc_cr
return gss_new;
gss_msg = gss_add_msg(gss_new);
if (gss_msg == gss_new) {
- struct inode *inode = &gss_new->inode->vfs_inode;
- int res = rpc_queue_upcall(inode, &gss_new->msg);
+ int res = rpc_queue_upcall(gss_new->pipe, &gss_new->msg);
if (res) {
gss_unhash_msg(gss_new);
gss_msg = ERR_PTR(res);
@@ -506,7 +504,7 @@ gss_refresh_upcall(struct rpc_task *task)
struct gss_cred *gss_cred = container_of(cred,
struct gss_cred, gc_base);
struct gss_upcall_msg *gss_msg;
- struct inode *inode;
+ struct rpc_pipe *pipe;
int err = 0;
dprintk("RPC: %5u gss_refresh_upcall for uid %u\n", task->tk_pid,
@@ -524,8 +522,8 @@ gss_refresh_upcall(struct rpc_task *task)
err = PTR_ERR(gss_msg);
goto out;
}
- inode = &gss_msg->inode->vfs_inode;
- spin_lock(&inode->i_lock);
+ pipe = gss_msg->pipe;
+ spin_lock(&pipe->lock);
if (gss_cred->gc_upcall != NULL)
rpc_sleep_on(&gss_cred->gc_upcall->rpc_waitqueue, task, NULL);
else if (gss_msg->ctx == NULL && gss_msg->msg.errno >= 0) {
@@ -538,7 +536,7 @@ gss_refresh_upcall(struct rpc_task *task)
gss_handle_downcall_result(gss_cred, gss_msg);
err = gss_msg->msg.errno;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
gss_release_msg(gss_msg);
out:
dprintk("RPC: %5u gss_refresh_upcall for uid %u result %d\n",
@@ -549,7 +547,7 @@ out:
static inline int
gss_create_upcall(struct gss_auth *gss_auth, struct gss_cred *gss_cred)
{
- struct inode *inode;
+ struct rpc_pipe *pipe;
struct rpc_cred *cred = &gss_cred->gc_base;
struct gss_upcall_msg *gss_msg;
DEFINE_WAIT(wait);
@@ -573,14 +571,14 @@ retry:
err = PTR_ERR(gss_msg);
goto out;
}
- inode = &gss_msg->inode->vfs_inode;
+ pipe = gss_msg->pipe;
for (;;) {
prepare_to_wait(&gss_msg->waitqueue, &wait, TASK_KILLABLE);
- spin_lock(&inode->i_lock);
+ spin_lock(&pipe->lock);
if (gss_msg->ctx != NULL || gss_msg->msg.errno < 0) {
break;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
if (fatal_signal_pending(current)) {
err = -ERESTARTSYS;
goto out_intr;
@@ -591,7 +589,7 @@ retry:
gss_cred_set_ctx(cred, gss_msg->ctx);
else
err = gss_msg->msg.errno;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
out_intr:
finish_wait(&gss_msg->waitqueue, &wait);
gss_release_msg(gss_msg);
@@ -609,7 +607,7 @@ gss_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
const void *p, *end;
void *buf;
struct gss_upcall_msg *gss_msg;
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct rpc_pipe *pipe = RPC_I(filp->f_dentry->d_inode)->pipe;
struct gss_cl_ctx *ctx;
uid_t uid;
ssize_t err = -EFBIG;
@@ -639,14 +637,14 @@ gss_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
err = -ENOENT;
/* Find a matching upcall */
- spin_lock(&inode->i_lock);
- gss_msg = __gss_find_upcall(RPC_I(inode), uid);
+ spin_lock(&pipe->lock);
+ gss_msg = __gss_find_upcall(pipe, uid);
if (gss_msg == NULL) {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
goto err_put_ctx;
}
list_del_init(&gss_msg->list);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
p = gss_fill_context(p, end, ctx, gss_msg->auth->mech);
if (IS_ERR(p)) {
@@ -674,9 +672,9 @@ gss_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
err = mlen;
err_release_msg:
- spin_lock(&inode->i_lock);
+ spin_lock(&pipe->lock);
__gss_unhash_msg(gss_msg);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
gss_release_msg(gss_msg);
err_put_ctx:
gss_put_ctx(ctx);
@@ -722,23 +720,23 @@ static int gss_pipe_open_v1(struct inode *inode)
static void
gss_pipe_release(struct inode *inode)
{
- struct rpc_inode *rpci = RPC_I(inode);
+ struct rpc_pipe *pipe = RPC_I(inode)->pipe;
struct gss_upcall_msg *gss_msg;
restart:
- spin_lock(&inode->i_lock);
- list_for_each_entry(gss_msg, &rpci->in_downcall, list) {
+ spin_lock(&pipe->lock);
+ list_for_each_entry(gss_msg, &pipe->in_downcall, list) {
if (!list_empty(&gss_msg->msg.list))
continue;
gss_msg->msg.errno = -EPIPE;
atomic_inc(&gss_msg->count);
__gss_unhash_msg(gss_msg);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
gss_release_msg(gss_msg);
goto restart;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
put_pipe_version();
}
@@ -759,6 +757,75 @@ gss_pipe_destroy_msg(struct rpc_pipe_msg *msg)
}
}
+static void gss_pipes_dentries_destroy(struct rpc_auth *auth)
+{
+ struct gss_auth *gss_auth;
+
+ gss_auth = container_of(auth, struct gss_auth, rpc_auth);
+ if (gss_auth->pipe[0]->dentry)
+ rpc_unlink(gss_auth->pipe[0]->dentry);
+ if (gss_auth->pipe[1]->dentry)
+ rpc_unlink(gss_auth->pipe[1]->dentry);
+}
+
+static int gss_pipes_dentries_create(struct rpc_auth *auth)
+{
+ int err;
+ struct gss_auth *gss_auth;
+ struct rpc_clnt *clnt;
+
+ gss_auth = container_of(auth, struct gss_auth, rpc_auth);
+ clnt = gss_auth->client;
+
+ gss_auth->pipe[1]->dentry = rpc_mkpipe_dentry(clnt->cl_dentry,
+ "gssd",
+ clnt, gss_auth->pipe[1]);
+ if (IS_ERR(gss_auth->pipe[1]->dentry))
+ return PTR_ERR(gss_auth->pipe[1]->dentry);
+ gss_auth->pipe[0]->dentry = rpc_mkpipe_dentry(clnt->cl_dentry,
+ gss_auth->mech->gm_name,
+ clnt, gss_auth->pipe[0]);
+ if (IS_ERR(gss_auth->pipe[0]->dentry)) {
+ err = PTR_ERR(gss_auth->pipe[0]->dentry);
+ goto err_unlink_pipe_1;
+ }
+ return 0;
+
+err_unlink_pipe_1:
+ rpc_unlink(gss_auth->pipe[1]->dentry);
+ return err;
+}
+
+static void gss_pipes_dentries_destroy_net(struct rpc_clnt *clnt,
+ struct rpc_auth *auth)
+{
+ struct net *net = rpc_net_ns(clnt);
+ struct super_block *sb;
+
+ sb = rpc_get_sb_net(net);
+ if (sb) {
+ if (clnt->cl_dentry)
+ gss_pipes_dentries_destroy(auth);
+ rpc_put_sb_net(net);
+ }
+}
+
+static int gss_pipes_dentries_create_net(struct rpc_clnt *clnt,
+ struct rpc_auth *auth)
+{
+ struct net *net = rpc_net_ns(clnt);
+ struct super_block *sb;
+ int err = 0;
+
+ sb = rpc_get_sb_net(net);
+ if (sb) {
+ if (clnt->cl_dentry)
+ err = gss_pipes_dentries_create(auth);
+ rpc_put_sb_net(net);
+ }
+ return err;
+}
+
/*
* NOTE: we have the opportunity to use different
* parameters based on the input flavor (which must be a pseudoflavor)
@@ -801,32 +868,33 @@ gss_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
* that we supported only the old pipe. So we instead create
* the new pipe first.
*/
- gss_auth->dentry[1] = rpc_mkpipe(clnt->cl_path.dentry,
- "gssd",
- clnt, &gss_upcall_ops_v1,
- RPC_PIPE_WAIT_FOR_OPEN);
- if (IS_ERR(gss_auth->dentry[1])) {
- err = PTR_ERR(gss_auth->dentry[1]);
+ gss_auth->pipe[1] = rpc_mkpipe_data(&gss_upcall_ops_v1,
+ RPC_PIPE_WAIT_FOR_OPEN);
+ if (IS_ERR(gss_auth->pipe[1])) {
+ err = PTR_ERR(gss_auth->pipe[1]);
goto err_put_mech;
}
- gss_auth->dentry[0] = rpc_mkpipe(clnt->cl_path.dentry,
- gss_auth->mech->gm_name,
- clnt, &gss_upcall_ops_v0,
- RPC_PIPE_WAIT_FOR_OPEN);
- if (IS_ERR(gss_auth->dentry[0])) {
- err = PTR_ERR(gss_auth->dentry[0]);
- goto err_unlink_pipe_1;
+ gss_auth->pipe[0] = rpc_mkpipe_data(&gss_upcall_ops_v0,
+ RPC_PIPE_WAIT_FOR_OPEN);
+ if (IS_ERR(gss_auth->pipe[0])) {
+ err = PTR_ERR(gss_auth->pipe[0]);
+ goto err_destroy_pipe_1;
}
+ err = gss_pipes_dentries_create_net(clnt, auth);
+ if (err)
+ goto err_destroy_pipe_0;
err = rpcauth_init_credcache(auth);
if (err)
- goto err_unlink_pipe_0;
+ goto err_unlink_pipes;
return auth;
-err_unlink_pipe_0:
- rpc_unlink(gss_auth->dentry[0]);
-err_unlink_pipe_1:
- rpc_unlink(gss_auth->dentry[1]);
+err_unlink_pipes:
+ gss_pipes_dentries_destroy_net(clnt, auth);
+err_destroy_pipe_0:
+ rpc_destroy_pipe_data(gss_auth->pipe[0]);
+err_destroy_pipe_1:
+ rpc_destroy_pipe_data(gss_auth->pipe[1]);
err_put_mech:
gss_mech_put(gss_auth->mech);
err_free:
@@ -839,8 +907,9 @@ out_dec:
static void
gss_free(struct gss_auth *gss_auth)
{
- rpc_unlink(gss_auth->dentry[1]);
- rpc_unlink(gss_auth->dentry[0]);
+ gss_pipes_dentries_destroy_net(gss_auth->client, &gss_auth->rpc_auth);
+ rpc_destroy_pipe_data(gss_auth->pipe[0]);
+ rpc_destroy_pipe_data(gss_auth->pipe[1]);
gss_mech_put(gss_auth->mech);
kfree(gss_auth);
@@ -1547,7 +1616,9 @@ static const struct rpc_authops authgss_ops = {
.create = gss_create,
.destroy = gss_destroy,
.lookup_cred = gss_lookup_cred,
- .crcreate = gss_create_cred
+ .crcreate = gss_create_cred,
+ .pipes_create = gss_pipes_dentries_create,
+ .pipes_destroy = gss_pipes_dentries_destroy,
};
static const struct rpc_credops gss_credops = {
@@ -1591,6 +1662,21 @@ static const struct rpc_pipe_ops gss_upcall_ops_v1 = {
.release_pipe = gss_pipe_release,
};
+static __net_init int rpcsec_gss_init_net(struct net *net)
+{
+ return gss_svc_init_net(net);
+}
+
+static __net_exit void rpcsec_gss_exit_net(struct net *net)
+{
+ gss_svc_shutdown_net(net);
+}
+
+static struct pernet_operations rpcsec_gss_net_ops = {
+ .init = rpcsec_gss_init_net,
+ .exit = rpcsec_gss_exit_net,
+};
+
/*
* Initialize RPCSEC_GSS module
*/
@@ -1604,8 +1690,13 @@ static int __init init_rpcsec_gss(void)
err = gss_svc_init();
if (err)
goto out_unregister;
+ err = register_pernet_subsys(&rpcsec_gss_net_ops);
+ if (err)
+ goto out_svc_exit;
rpc_init_wait_queue(&pipe_version_rpc_waitqueue, "gss pipe version");
return 0;
+out_svc_exit:
+ gss_svc_shutdown();
out_unregister:
rpcauth_unregister(&authgss_ops);
out:
@@ -1614,6 +1705,7 @@ out:
static void __exit exit_rpcsec_gss(void)
{
+ unregister_pernet_subsys(&rpcsec_gss_net_ops);
gss_svc_shutdown();
rpcauth_unregister(&authgss_ops);
rcu_barrier(); /* Wait for completion of call_rcu()'s */
diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
index 9576f35ab701..0f43e894bc0a 100644
--- a/net/sunrpc/auth_gss/gss_krb5_crypto.c
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -600,11 +600,14 @@ gss_krb5_cts_crypt(struct crypto_blkcipher *cipher, struct xdr_buf *buf,
u32 ret;
struct scatterlist sg[1];
struct blkcipher_desc desc = { .tfm = cipher, .info = iv };
- u8 data[crypto_blkcipher_blocksize(cipher) * 2];
+ u8 data[GSS_KRB5_MAX_BLOCKSIZE * 2];
struct page **save_pages;
u32 len = buf->len - offset;
- BUG_ON(len > crypto_blkcipher_blocksize(cipher) * 2);
+ if (len > ARRAY_SIZE(data)) {
+ WARN_ON(0);
+ return -ENOMEM;
+ }
/*
* For encryption, we want to read from the cleartext
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 8c67890de427..8eff8c32d1b9 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -344,7 +344,7 @@ out_err:
return PTR_ERR(p);
}
-struct crypto_blkcipher *
+static struct crypto_blkcipher *
context_v2_alloc_cipher(struct krb5_ctx *ctx, const char *cname, u8 *key)
{
struct crypto_blkcipher *cp;
diff --git a/net/sunrpc/auth_gss/gss_krb5_seal.c b/net/sunrpc/auth_gss/gss_krb5_seal.c
index d7941eab7796..62ae3273186c 100644
--- a/net/sunrpc/auth_gss/gss_krb5_seal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_seal.c
@@ -159,7 +159,7 @@ gss_get_mic_v1(struct krb5_ctx *ctx, struct xdr_buf *text,
return (ctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE;
}
-u32
+static u32
gss_get_mic_v2(struct krb5_ctx *ctx, struct xdr_buf *text,
struct xdr_netobj *token)
{
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 8d0f7d3c71c8..1600cfb1618c 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -48,6 +48,8 @@
#include <linux/sunrpc/svcauth_gss.h>
#include <linux/sunrpc/cache.h>
+#include "../netns.h"
+
#ifdef RPC_DEBUG
# define RPCDBG_FACILITY RPCDBG_AUTH
#endif
@@ -75,10 +77,8 @@ struct rsi {
int major_status, minor_status;
};
-static struct cache_head *rsi_table[RSI_HASHMAX];
-static struct cache_detail rsi_cache;
-static struct rsi *rsi_update(struct rsi *new, struct rsi *old);
-static struct rsi *rsi_lookup(struct rsi *item);
+static struct rsi *rsi_update(struct cache_detail *cd, struct rsi *new, struct rsi *old);
+static struct rsi *rsi_lookup(struct cache_detail *cd, struct rsi *item);
static void rsi_free(struct rsi *rsii)
{
@@ -216,7 +216,7 @@ static int rsi_parse(struct cache_detail *cd,
if (dup_to_netobj(&rsii.in_token, buf, len))
goto out;
- rsip = rsi_lookup(&rsii);
+ rsip = rsi_lookup(cd, &rsii);
if (!rsip)
goto out;
@@ -258,21 +258,20 @@ static int rsi_parse(struct cache_detail *cd,
if (dup_to_netobj(&rsii.out_token, buf, len))
goto out;
rsii.h.expiry_time = expiry;
- rsip = rsi_update(&rsii, rsip);
+ rsip = rsi_update(cd, &rsii, rsip);
status = 0;
out:
rsi_free(&rsii);
if (rsip)
- cache_put(&rsip->h, &rsi_cache);
+ cache_put(&rsip->h, cd);
else
status = -ENOMEM;
return status;
}
-static struct cache_detail rsi_cache = {
+static struct cache_detail rsi_cache_template = {
.owner = THIS_MODULE,
.hash_size = RSI_HASHMAX,
- .hash_table = rsi_table,
.name = "auth.rpcsec.init",
.cache_put = rsi_put,
.cache_upcall = rsi_upcall,
@@ -283,24 +282,24 @@ static struct cache_detail rsi_cache = {
.alloc = rsi_alloc,
};
-static struct rsi *rsi_lookup(struct rsi *item)
+static struct rsi *rsi_lookup(struct cache_detail *cd, struct rsi *item)
{
struct cache_head *ch;
int hash = rsi_hash(item);
- ch = sunrpc_cache_lookup(&rsi_cache, &item->h, hash);
+ ch = sunrpc_cache_lookup(cd, &item->h, hash);
if (ch)
return container_of(ch, struct rsi, h);
else
return NULL;
}
-static struct rsi *rsi_update(struct rsi *new, struct rsi *old)
+static struct rsi *rsi_update(struct cache_detail *cd, struct rsi *new, struct rsi *old)
{
struct cache_head *ch;
int hash = rsi_hash(new);
- ch = sunrpc_cache_update(&rsi_cache, &new->h,
+ ch = sunrpc_cache_update(cd, &new->h,
&old->h, hash);
if (ch)
return container_of(ch, struct rsi, h);
@@ -339,10 +338,8 @@ struct rsc {
char *client_name;
};
-static struct cache_head *rsc_table[RSC_HASHMAX];
-static struct cache_detail rsc_cache;
-static struct rsc *rsc_update(struct rsc *new, struct rsc *old);
-static struct rsc *rsc_lookup(struct rsc *item);
+static struct rsc *rsc_update(struct cache_detail *cd, struct rsc *new, struct rsc *old);
+static struct rsc *rsc_lookup(struct cache_detail *cd, struct rsc *item);
static void rsc_free(struct rsc *rsci)
{
@@ -444,7 +441,7 @@ static int rsc_parse(struct cache_detail *cd,
if (expiry == 0)
goto out;
- rscp = rsc_lookup(&rsci);
+ rscp = rsc_lookup(cd, &rsci);
if (!rscp)
goto out;
@@ -506,22 +503,21 @@ static int rsc_parse(struct cache_detail *cd,
}
rsci.h.expiry_time = expiry;
- rscp = rsc_update(&rsci, rscp);
+ rscp = rsc_update(cd, &rsci, rscp);
status = 0;
out:
gss_mech_put(gm);
rsc_free(&rsci);
if (rscp)
- cache_put(&rscp->h, &rsc_cache);
+ cache_put(&rscp->h, cd);
else
status = -ENOMEM;
return status;
}
-static struct cache_detail rsc_cache = {
+static struct cache_detail rsc_cache_template = {
.owner = THIS_MODULE,
.hash_size = RSC_HASHMAX,
- .hash_table = rsc_table,
.name = "auth.rpcsec.context",
.cache_put = rsc_put,
.cache_parse = rsc_parse,
@@ -531,24 +527,24 @@ static struct cache_detail rsc_cache = {
.alloc = rsc_alloc,
};
-static struct rsc *rsc_lookup(struct rsc *item)
+static struct rsc *rsc_lookup(struct cache_detail *cd, struct rsc *item)
{
struct cache_head *ch;
int hash = rsc_hash(item);
- ch = sunrpc_cache_lookup(&rsc_cache, &item->h, hash);
+ ch = sunrpc_cache_lookup(cd, &item->h, hash);
if (ch)
return container_of(ch, struct rsc, h);
else
return NULL;
}
-static struct rsc *rsc_update(struct rsc *new, struct rsc *old)
+static struct rsc *rsc_update(struct cache_detail *cd, struct rsc *new, struct rsc *old)
{
struct cache_head *ch;
int hash = rsc_hash(new);
- ch = sunrpc_cache_update(&rsc_cache, &new->h,
+ ch = sunrpc_cache_update(cd, &new->h,
&old->h, hash);
if (ch)
return container_of(ch, struct rsc, h);
@@ -558,7 +554,7 @@ static struct rsc *rsc_update(struct rsc *new, struct rsc *old)
static struct rsc *
-gss_svc_searchbyctx(struct xdr_netobj *handle)
+gss_svc_searchbyctx(struct cache_detail *cd, struct xdr_netobj *handle)
{
struct rsc rsci;
struct rsc *found;
@@ -566,11 +562,11 @@ gss_svc_searchbyctx(struct xdr_netobj *handle)
memset(&rsci, 0, sizeof(rsci));
if (dup_to_netobj(&rsci.handle, handle->data, handle->len))
return NULL;
- found = rsc_lookup(&rsci);
+ found = rsc_lookup(cd, &rsci);
rsc_free(&rsci);
if (!found)
return NULL;
- if (cache_check(&rsc_cache, &found->h, NULL))
+ if (cache_check(cd, &found->h, NULL))
return NULL;
return found;
}
@@ -968,20 +964,20 @@ svcauth_gss_set_client(struct svc_rqst *rqstp)
}
static inline int
-gss_write_init_verf(struct svc_rqst *rqstp, struct rsi *rsip)
+gss_write_init_verf(struct cache_detail *cd, struct svc_rqst *rqstp, struct rsi *rsip)
{
struct rsc *rsci;
int rc;
if (rsip->major_status != GSS_S_COMPLETE)
return gss_write_null_verf(rqstp);
- rsci = gss_svc_searchbyctx(&rsip->out_handle);
+ rsci = gss_svc_searchbyctx(cd, &rsip->out_handle);
if (rsci == NULL) {
rsip->major_status = GSS_S_NO_CONTEXT;
return gss_write_null_verf(rqstp);
}
rc = gss_write_verf(rqstp, rsci->mechctx, GSS_SEQ_WIN);
- cache_put(&rsci->h, &rsc_cache);
+ cache_put(&rsci->h, cd);
return rc;
}
@@ -1000,6 +996,7 @@ static int svcauth_gss_handle_init(struct svc_rqst *rqstp,
struct xdr_netobj tmpobj;
struct rsi *rsip, rsikey;
int ret;
+ struct sunrpc_net *sn = net_generic(rqstp->rq_xprt->xpt_net, sunrpc_net_id);
/* Read the verifier; should be NULL: */
*authp = rpc_autherr_badverf;
@@ -1028,17 +1025,17 @@ static int svcauth_gss_handle_init(struct svc_rqst *rqstp,
}
/* Perform upcall, or find upcall result: */
- rsip = rsi_lookup(&rsikey);
+ rsip = rsi_lookup(sn->rsi_cache, &rsikey);
rsi_free(&rsikey);
if (!rsip)
return SVC_CLOSE;
- if (cache_check(&rsi_cache, &rsip->h, &rqstp->rq_chandle) < 0)
+ if (cache_check(sn->rsi_cache, &rsip->h, &rqstp->rq_chandle) < 0)
/* No upcall result: */
return SVC_CLOSE;
ret = SVC_CLOSE;
/* Got an answer to the upcall; use it: */
- if (gss_write_init_verf(rqstp, rsip))
+ if (gss_write_init_verf(sn->rsc_cache, rqstp, rsip))
goto out;
if (resv->iov_len + 4 > PAGE_SIZE)
goto out;
@@ -1055,7 +1052,7 @@ static int svcauth_gss_handle_init(struct svc_rqst *rqstp,
ret = SVC_COMPLETE;
out:
- cache_put(&rsip->h, &rsi_cache);
+ cache_put(&rsip->h, sn->rsi_cache);
return ret;
}
@@ -1079,6 +1076,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
__be32 *rpcstart;
__be32 *reject_stat = resv->iov_base + resv->iov_len;
int ret;
+ struct sunrpc_net *sn = net_generic(rqstp->rq_xprt->xpt_net, sunrpc_net_id);
dprintk("RPC: svcauth_gss: argv->iov_len = %zd\n",
argv->iov_len);
@@ -1129,7 +1127,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
case RPC_GSS_PROC_DESTROY:
/* Look up the context, and check the verifier: */
*authp = rpcsec_gsserr_credproblem;
- rsci = gss_svc_searchbyctx(&gc->gc_ctx);
+ rsci = gss_svc_searchbyctx(sn->rsc_cache, &gc->gc_ctx);
if (!rsci)
goto auth_err;
switch (gss_verify_header(rqstp, rsci, rpcstart, gc, authp)) {
@@ -1209,7 +1207,7 @@ drop:
ret = SVC_DROP;
out:
if (rsci)
- cache_put(&rsci->h, &rsc_cache);
+ cache_put(&rsci->h, sn->rsc_cache);
return ret;
}
@@ -1362,6 +1360,7 @@ svcauth_gss_release(struct svc_rqst *rqstp)
struct rpc_gss_wire_cred *gc = &gsd->clcred;
struct xdr_buf *resbuf = &rqstp->rq_res;
int stat = -EINVAL;
+ struct sunrpc_net *sn = net_generic(rqstp->rq_xprt->xpt_net, sunrpc_net_id);
if (gc->gc_proc != RPC_GSS_PROC_DATA)
goto out;
@@ -1404,7 +1403,7 @@ out_err:
put_group_info(rqstp->rq_cred.cr_group_info);
rqstp->rq_cred.cr_group_info = NULL;
if (gsd->rsci)
- cache_put(&gsd->rsci->h, &rsc_cache);
+ cache_put(&gsd->rsci->h, sn->rsc_cache);
gsd->rsci = NULL;
return stat;
@@ -1429,30 +1428,96 @@ static struct auth_ops svcauthops_gss = {
.set_client = svcauth_gss_set_client,
};
+static int rsi_cache_create_net(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd;
+ int err;
+
+ cd = cache_create_net(&rsi_cache_template, net);
+ if (IS_ERR(cd))
+ return PTR_ERR(cd);
+ err = cache_register_net(cd, net);
+ if (err) {
+ cache_destroy_net(cd, net);
+ return err;
+ }
+ sn->rsi_cache = cd;
+ return 0;
+}
+
+static void rsi_cache_destroy_net(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd = sn->rsi_cache;
+
+ sn->rsi_cache = NULL;
+ cache_purge(cd);
+ cache_unregister_net(cd, net);
+ cache_destroy_net(cd, net);
+}
+
+static int rsc_cache_create_net(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd;
+ int err;
+
+ cd = cache_create_net(&rsc_cache_template, net);
+ if (IS_ERR(cd))
+ return PTR_ERR(cd);
+ err = cache_register_net(cd, net);
+ if (err) {
+ cache_destroy_net(cd, net);
+ return err;
+ }
+ sn->rsc_cache = cd;
+ return 0;
+}
+
+static void rsc_cache_destroy_net(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd = sn->rsc_cache;
+
+ sn->rsc_cache = NULL;
+ cache_purge(cd);
+ cache_unregister_net(cd, net);
+ cache_destroy_net(cd, net);
+}
+
int
-gss_svc_init(void)
+gss_svc_init_net(struct net *net)
{
- int rv = svc_auth_register(RPC_AUTH_GSS, &svcauthops_gss);
+ int rv;
+
+ rv = rsc_cache_create_net(net);
if (rv)
return rv;
- rv = cache_register(&rsc_cache);
+ rv = rsi_cache_create_net(net);
if (rv)
goto out1;
- rv = cache_register(&rsi_cache);
- if (rv)
- goto out2;
return 0;
-out2:
- cache_unregister(&rsc_cache);
out1:
- svc_auth_unregister(RPC_AUTH_GSS);
+ rsc_cache_destroy_net(net);
return rv;
}
void
+gss_svc_shutdown_net(struct net *net)
+{
+ rsi_cache_destroy_net(net);
+ rsc_cache_destroy_net(net);
+}
+
+int
+gss_svc_init(void)
+{
+ return svc_auth_register(RPC_AUTH_GSS, &svcauthops_gss);
+}
+
+void
gss_svc_shutdown(void)
{
- cache_unregister(&rsc_cache);
- cache_unregister(&rsi_cache);
svc_auth_unregister(RPC_AUTH_GSS);
}
diff --git a/net/sunrpc/backchannel_rqst.c b/net/sunrpc/backchannel_rqst.c
index 3ad435a14ada..31def68a0f6e 100644
--- a/net/sunrpc/backchannel_rqst.c
+++ b/net/sunrpc/backchannel_rqst.c
@@ -25,6 +25,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <linux/slab.h>
#include <linux/sunrpc/xprt.h>
#include <linux/export.h>
+#include <linux/sunrpc/bc_xprt.h>
#ifdef RPC_DEBUG
#define RPCDBG_FACILITY RPCDBG_TRANS
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 465df9ae1046..f21ece088764 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -344,7 +344,7 @@ static int current_index;
static void do_cache_clean(struct work_struct *work);
static struct delayed_work cache_cleaner;
-static void sunrpc_init_cache_detail(struct cache_detail *cd)
+void sunrpc_init_cache_detail(struct cache_detail *cd)
{
rwlock_init(&cd->hash_lock);
INIT_LIST_HEAD(&cd->queue);
@@ -360,8 +360,9 @@ static void sunrpc_init_cache_detail(struct cache_detail *cd)
/* start the cleaning process */
schedule_delayed_work(&cache_cleaner, 0);
}
+EXPORT_SYMBOL_GPL(sunrpc_init_cache_detail);
-static void sunrpc_destroy_cache_detail(struct cache_detail *cd)
+void sunrpc_destroy_cache_detail(struct cache_detail *cd)
{
cache_purge(cd);
spin_lock(&cache_list_lock);
@@ -384,6 +385,7 @@ static void sunrpc_destroy_cache_detail(struct cache_detail *cd)
out:
printk(KERN_ERR "nfsd: failed to unregister %s cache\n", cd->name);
}
+EXPORT_SYMBOL_GPL(sunrpc_destroy_cache_detail);
/* clean cache tries to find something to clean
* and cleans it.
@@ -1643,12 +1645,6 @@ int cache_register_net(struct cache_detail *cd, struct net *net)
}
EXPORT_SYMBOL_GPL(cache_register_net);
-int cache_register(struct cache_detail *cd)
-{
- return cache_register_net(cd, &init_net);
-}
-EXPORT_SYMBOL_GPL(cache_register);
-
void cache_unregister_net(struct cache_detail *cd, struct net *net)
{
remove_cache_proc_entries(cd, net);
@@ -1656,11 +1652,31 @@ void cache_unregister_net(struct cache_detail *cd, struct net *net)
}
EXPORT_SYMBOL_GPL(cache_unregister_net);
-void cache_unregister(struct cache_detail *cd)
+struct cache_detail *cache_create_net(struct cache_detail *tmpl, struct net *net)
+{
+ struct cache_detail *cd;
+
+ cd = kmemdup(tmpl, sizeof(struct cache_detail), GFP_KERNEL);
+ if (cd == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ cd->hash_table = kzalloc(cd->hash_size * sizeof(struct cache_head *),
+ GFP_KERNEL);
+ if (cd->hash_table == NULL) {
+ kfree(cd);
+ return ERR_PTR(-ENOMEM);
+ }
+ cd->net = net;
+ return cd;
+}
+EXPORT_SYMBOL_GPL(cache_create_net);
+
+void cache_destroy_net(struct cache_detail *cd, struct net *net)
{
- cache_unregister_net(cd, &init_net);
+ kfree(cd->hash_table);
+ kfree(cd);
}
-EXPORT_SYMBOL_GPL(cache_unregister);
+EXPORT_SYMBOL_GPL(cache_destroy_net);
static ssize_t cache_read_pipefs(struct file *filp, char __user *buf,
size_t count, loff_t *ppos)
@@ -1787,17 +1803,14 @@ int sunrpc_cache_register_pipefs(struct dentry *parent,
struct dentry *dir;
int ret = 0;
- sunrpc_init_cache_detail(cd);
q.name = name;
q.len = strlen(name);
q.hash = full_name_hash(q.name, q.len);
dir = rpc_create_cache_dir(parent, &q, umode, cd);
if (!IS_ERR(dir))
cd->u.pipefs.dir = dir;
- else {
- sunrpc_destroy_cache_detail(cd);
+ else
ret = PTR_ERR(dir);
- }
return ret;
}
EXPORT_SYMBOL_GPL(sunrpc_cache_register_pipefs);
@@ -1806,7 +1819,6 @@ void sunrpc_cache_unregister_pipefs(struct cache_detail *cd)
{
rpc_remove_cache_dir(cd->u.pipefs.dir);
cd->u.pipefs.dir = NULL;
- sunrpc_destroy_cache_detail(cd);
}
EXPORT_SYMBOL_GPL(sunrpc_cache_unregister_pipefs);
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index f0268ea7e711..7a4cb5fdc212 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -31,13 +31,16 @@
#include <linux/in.h>
#include <linux/in6.h>
#include <linux/un.h>
+#include <linux/rcupdate.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
#include <linux/sunrpc/metrics.h>
#include <linux/sunrpc/bc_xprt.h>
+#include <trace/events/sunrpc.h>
#include "sunrpc.h"
+#include "netns.h"
#ifdef RPC_DEBUG
# define RPCDBG_FACILITY RPCDBG_CALL
@@ -50,8 +53,6 @@
/*
* All RPC clients are linked into this list
*/
-static LIST_HEAD(all_clients);
-static DEFINE_SPINLOCK(rpc_client_lock);
static DECLARE_WAIT_QUEUE_HEAD(destroy_wait);
@@ -81,82 +82,191 @@ static int rpc_ping(struct rpc_clnt *clnt);
static void rpc_register_client(struct rpc_clnt *clnt)
{
- spin_lock(&rpc_client_lock);
- list_add(&clnt->cl_clients, &all_clients);
- spin_unlock(&rpc_client_lock);
+ struct net *net = rpc_net_ns(clnt);
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+ spin_lock(&sn->rpc_client_lock);
+ list_add(&clnt->cl_clients, &sn->all_clients);
+ spin_unlock(&sn->rpc_client_lock);
}
static void rpc_unregister_client(struct rpc_clnt *clnt)
{
- spin_lock(&rpc_client_lock);
+ struct net *net = rpc_net_ns(clnt);
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+ spin_lock(&sn->rpc_client_lock);
list_del(&clnt->cl_clients);
- spin_unlock(&rpc_client_lock);
+ spin_unlock(&sn->rpc_client_lock);
}
-static int
-rpc_setup_pipedir(struct rpc_clnt *clnt, char *dir_name)
+static void __rpc_clnt_remove_pipedir(struct rpc_clnt *clnt)
+{
+ if (clnt->cl_dentry) {
+ if (clnt->cl_auth && clnt->cl_auth->au_ops->pipes_destroy)
+ clnt->cl_auth->au_ops->pipes_destroy(clnt->cl_auth);
+ rpc_remove_client_dir(clnt->cl_dentry);
+ }
+ clnt->cl_dentry = NULL;
+}
+
+static void rpc_clnt_remove_pipedir(struct rpc_clnt *clnt)
+{
+ struct net *net = rpc_net_ns(clnt);
+ struct super_block *pipefs_sb;
+
+ pipefs_sb = rpc_get_sb_net(net);
+ if (pipefs_sb) {
+ __rpc_clnt_remove_pipedir(clnt);
+ rpc_put_sb_net(net);
+ }
+}
+
+static struct dentry *rpc_setup_pipedir_sb(struct super_block *sb,
+ struct rpc_clnt *clnt,
+ const char *dir_name)
{
static uint32_t clntid;
- struct path path, dir;
char name[15];
struct qstr q = {
.name = name,
};
+ struct dentry *dir, *dentry;
int error;
- clnt->cl_path.mnt = ERR_PTR(-ENOENT);
- clnt->cl_path.dentry = ERR_PTR(-ENOENT);
- if (dir_name == NULL)
- return 0;
-
- path.mnt = rpc_get_mount();
- if (IS_ERR(path.mnt))
- return PTR_ERR(path.mnt);
- error = vfs_path_lookup(path.mnt->mnt_root, path.mnt, dir_name, 0, &dir);
- if (error)
- goto err;
-
+ dir = rpc_d_lookup_sb(sb, dir_name);
+ if (dir == NULL)
+ return dir;
for (;;) {
q.len = snprintf(name, sizeof(name), "clnt%x", (unsigned int)clntid++);
name[sizeof(name) - 1] = '\0';
q.hash = full_name_hash(q.name, q.len);
- path.dentry = rpc_create_client_dir(dir.dentry, &q, clnt);
- if (!IS_ERR(path.dentry))
+ dentry = rpc_create_client_dir(dir, &q, clnt);
+ if (!IS_ERR(dentry))
break;
- error = PTR_ERR(path.dentry);
+ error = PTR_ERR(dentry);
if (error != -EEXIST) {
printk(KERN_INFO "RPC: Couldn't create pipefs entry"
" %s/%s, error %d\n",
dir_name, name, error);
- goto err_path_put;
+ break;
}
}
- path_put(&dir);
- clnt->cl_path = path;
+ dput(dir);
+ return dentry;
+}
+
+static int
+rpc_setup_pipedir(struct rpc_clnt *clnt, const char *dir_name)
+{
+ struct net *net = rpc_net_ns(clnt);
+ struct super_block *pipefs_sb;
+ struct dentry *dentry;
+
+ clnt->cl_dentry = NULL;
+ if (dir_name == NULL)
+ return 0;
+ pipefs_sb = rpc_get_sb_net(net);
+ if (!pipefs_sb)
+ return 0;
+ dentry = rpc_setup_pipedir_sb(pipefs_sb, clnt, dir_name);
+ rpc_put_sb_net(net);
+ if (IS_ERR(dentry))
+ return PTR_ERR(dentry);
+ clnt->cl_dentry = dentry;
return 0;
-err_path_put:
- path_put(&dir);
-err:
- rpc_put_mount();
+}
+
+static int __rpc_pipefs_event(struct rpc_clnt *clnt, unsigned long event,
+ struct super_block *sb)
+{
+ struct dentry *dentry;
+ int err = 0;
+
+ switch (event) {
+ case RPC_PIPEFS_MOUNT:
+ if (clnt->cl_program->pipe_dir_name == NULL)
+ break;
+ dentry = rpc_setup_pipedir_sb(sb, clnt,
+ clnt->cl_program->pipe_dir_name);
+ BUG_ON(dentry == NULL);
+ if (IS_ERR(dentry))
+ return PTR_ERR(dentry);
+ clnt->cl_dentry = dentry;
+ if (clnt->cl_auth->au_ops->pipes_create) {
+ err = clnt->cl_auth->au_ops->pipes_create(clnt->cl_auth);
+ if (err)
+ __rpc_clnt_remove_pipedir(clnt);
+ }
+ break;
+ case RPC_PIPEFS_UMOUNT:
+ __rpc_clnt_remove_pipedir(clnt);
+ break;
+ default:
+ printk(KERN_ERR "%s: unknown event: %ld\n", __func__, event);
+ return -ENOTSUPP;
+ }
+ return err;
+}
+
+static struct rpc_clnt *rpc_get_client_for_event(struct net *net, int event)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct rpc_clnt *clnt;
+
+ spin_lock(&sn->rpc_client_lock);
+ list_for_each_entry(clnt, &sn->all_clients, cl_clients) {
+ if (((event == RPC_PIPEFS_MOUNT) && clnt->cl_dentry) ||
+ ((event == RPC_PIPEFS_UMOUNT) && !clnt->cl_dentry))
+ continue;
+ atomic_inc(&clnt->cl_count);
+ spin_unlock(&sn->rpc_client_lock);
+ return clnt;
+ }
+ spin_unlock(&sn->rpc_client_lock);
+ return NULL;
+}
+
+static int rpc_pipefs_event(struct notifier_block *nb, unsigned long event,
+ void *ptr)
+{
+ struct super_block *sb = ptr;
+ struct rpc_clnt *clnt;
+ int error = 0;
+
+ while ((clnt = rpc_get_client_for_event(sb->s_fs_info, event))) {
+ error = __rpc_pipefs_event(clnt, event, sb);
+ rpc_release_client(clnt);
+ if (error)
+ break;
+ }
return error;
}
+static struct notifier_block rpc_clients_block = {
+ .notifier_call = rpc_pipefs_event,
+ .priority = SUNRPC_PIPEFS_RPC_PRIO,
+};
+
+int rpc_clients_notifier_register(void)
+{
+ return rpc_pipefs_notifier_register(&rpc_clients_block);
+}
+
+void rpc_clients_notifier_unregister(void)
+{
+ return rpc_pipefs_notifier_unregister(&rpc_clients_block);
+}
+
static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt)
{
- struct rpc_program *program = args->program;
- struct rpc_version *version;
+ const struct rpc_program *program = args->program;
+ const struct rpc_version *version;
struct rpc_clnt *clnt = NULL;
struct rpc_auth *auth;
int err;
- size_t len;
/* sanity check the name before trying to print it */
- err = -EINVAL;
- len = strlen(args->servername);
- if (len > RPC_MAXNETNAMELEN)
- goto out_no_rpciod;
- len++;
-
dprintk("RPC: creating %s client for %s (xprt %p)\n",
program->name, args->servername, xprt);
@@ -179,17 +289,7 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
goto out_err;
clnt->cl_parent = clnt;
- clnt->cl_server = clnt->cl_inline_name;
- if (len > sizeof(clnt->cl_inline_name)) {
- char *buf = kmalloc(len, GFP_KERNEL);
- if (buf != NULL)
- clnt->cl_server = buf;
- else
- len = sizeof(clnt->cl_inline_name);
- }
- strlcpy(clnt->cl_server, args->servername, len);
-
- clnt->cl_xprt = xprt;
+ rcu_assign_pointer(clnt->cl_xprt, xprt);
clnt->cl_procinfo = version->procs;
clnt->cl_maxproc = version->nrprocs;
clnt->cl_protname = program->name;
@@ -204,7 +304,7 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
INIT_LIST_HEAD(&clnt->cl_tasks);
spin_lock_init(&clnt->cl_lock);
- if (!xprt_bound(clnt->cl_xprt))
+ if (!xprt_bound(xprt))
clnt->cl_autobind = 1;
clnt->cl_timeout = xprt->timeout;
@@ -246,17 +346,12 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
return clnt;
out_no_auth:
- if (!IS_ERR(clnt->cl_path.dentry)) {
- rpc_remove_client_dir(clnt->cl_path.dentry);
- rpc_put_mount();
- }
+ rpc_clnt_remove_pipedir(clnt);
out_no_path:
kfree(clnt->cl_principal);
out_no_principal:
rpc_free_iostats(clnt->cl_metrics);
out_no_stats:
- if (clnt->cl_server != clnt->cl_inline_name)
- kfree(clnt->cl_server);
kfree(clnt);
out_err:
xprt_put(xprt);
@@ -286,6 +381,7 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
.srcaddr = args->saddress,
.dstaddr = args->address,
.addrlen = args->addrsize,
+ .servername = args->servername,
.bc_xprt = args->bc_xprt,
};
char servername[48];
@@ -294,7 +390,7 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
* If the caller chooses not to specify a hostname, whip
* up a string representation of the passed-in address.
*/
- if (args->servername == NULL) {
+ if (xprtargs.servername == NULL) {
struct sockaddr_un *sun =
(struct sockaddr_un *)args->address;
struct sockaddr_in *sin =
@@ -321,7 +417,7 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
* address family isn't recognized. */
return ERR_PTR(-EINVAL);
}
- args->servername = servername;
+ xprtargs.servername = servername;
}
xprt = xprt_create_transport(&xprtargs);
@@ -374,6 +470,7 @@ struct rpc_clnt *
rpc_clone_client(struct rpc_clnt *clnt)
{
struct rpc_clnt *new;
+ struct rpc_xprt *xprt;
int err = -ENOMEM;
new = kmemdup(clnt, sizeof(*new), GFP_KERNEL);
@@ -393,18 +490,25 @@ rpc_clone_client(struct rpc_clnt *clnt)
if (new->cl_principal == NULL)
goto out_no_principal;
}
+ rcu_read_lock();
+ xprt = xprt_get(rcu_dereference(clnt->cl_xprt));
+ rcu_read_unlock();
+ if (xprt == NULL)
+ goto out_no_transport;
+ rcu_assign_pointer(new->cl_xprt, xprt);
atomic_set(&new->cl_count, 1);
err = rpc_setup_pipedir(new, clnt->cl_program->pipe_dir_name);
if (err != 0)
goto out_no_path;
if (new->cl_auth)
atomic_inc(&new->cl_auth->au_count);
- xprt_get(clnt->cl_xprt);
atomic_inc(&clnt->cl_count);
rpc_register_client(new);
rpciod_up();
return new;
out_no_path:
+ xprt_put(xprt);
+out_no_transport:
kfree(new->cl_principal);
out_no_principal:
rpc_free_iostats(new->cl_metrics);
@@ -453,8 +557,9 @@ EXPORT_SYMBOL_GPL(rpc_killall_tasks);
*/
void rpc_shutdown_client(struct rpc_clnt *clnt)
{
- dprintk("RPC: shutting down %s client for %s\n",
- clnt->cl_protname, clnt->cl_server);
+ dprintk_rcu("RPC: shutting down %s client for %s\n",
+ clnt->cl_protname,
+ rcu_dereference(clnt->cl_xprt)->servername);
while (!list_empty(&clnt->cl_tasks)) {
rpc_killall_tasks(clnt);
@@ -472,24 +577,17 @@ EXPORT_SYMBOL_GPL(rpc_shutdown_client);
static void
rpc_free_client(struct rpc_clnt *clnt)
{
- dprintk("RPC: destroying %s client for %s\n",
- clnt->cl_protname, clnt->cl_server);
- if (!IS_ERR(clnt->cl_path.dentry)) {
- rpc_remove_client_dir(clnt->cl_path.dentry);
- rpc_put_mount();
- }
- if (clnt->cl_parent != clnt) {
+ dprintk_rcu("RPC: destroying %s client for %s\n",
+ clnt->cl_protname,
+ rcu_dereference(clnt->cl_xprt)->servername);
+ if (clnt->cl_parent != clnt)
rpc_release_client(clnt->cl_parent);
- goto out_free;
- }
- if (clnt->cl_server != clnt->cl_inline_name)
- kfree(clnt->cl_server);
-out_free:
rpc_unregister_client(clnt);
+ rpc_clnt_remove_pipedir(clnt);
rpc_free_iostats(clnt->cl_metrics);
kfree(clnt->cl_principal);
clnt->cl_metrics = NULL;
- xprt_put(clnt->cl_xprt);
+ xprt_put(rcu_dereference_raw(clnt->cl_xprt));
rpciod_down();
kfree(clnt);
}
@@ -542,11 +640,11 @@ rpc_release_client(struct rpc_clnt *clnt)
* The Sun NFSv2/v3 ACL protocol can do this.
*/
struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *old,
- struct rpc_program *program,
+ const struct rpc_program *program,
u32 vers)
{
struct rpc_clnt *clnt;
- struct rpc_version *version;
+ const struct rpc_version *version;
int err;
BUG_ON(vers >= program->nrvers || !program->version[vers]);
@@ -778,13 +876,18 @@ EXPORT_SYMBOL_GPL(rpc_call_start);
size_t rpc_peeraddr(struct rpc_clnt *clnt, struct sockaddr *buf, size_t bufsize)
{
size_t bytes;
- struct rpc_xprt *xprt = clnt->cl_xprt;
+ struct rpc_xprt *xprt;
- bytes = sizeof(xprt->addr);
+ rcu_read_lock();
+ xprt = rcu_dereference(clnt->cl_xprt);
+
+ bytes = xprt->addrlen;
if (bytes > bufsize)
bytes = bufsize;
- memcpy(buf, &clnt->cl_xprt->addr, bytes);
- return xprt->addrlen;
+ memcpy(buf, &xprt->addr, bytes);
+ rcu_read_unlock();
+
+ return bytes;
}
EXPORT_SYMBOL_GPL(rpc_peeraddr);
@@ -793,11 +896,16 @@ EXPORT_SYMBOL_GPL(rpc_peeraddr);
* @clnt: RPC client structure
* @format: address format
*
+ * NB: the lifetime of the memory referenced by the returned pointer is
+ * the same as the rpc_xprt itself. As long as the caller uses this
+ * pointer, it must hold the RCU read lock.
*/
const char *rpc_peeraddr2str(struct rpc_clnt *clnt,
enum rpc_display_format_t format)
{
- struct rpc_xprt *xprt = clnt->cl_xprt;
+ struct rpc_xprt *xprt;
+
+ xprt = rcu_dereference(clnt->cl_xprt);
if (xprt->address_strings[format] != NULL)
return xprt->address_strings[format];
@@ -806,17 +914,203 @@ const char *rpc_peeraddr2str(struct rpc_clnt *clnt,
}
EXPORT_SYMBOL_GPL(rpc_peeraddr2str);
+static const struct sockaddr_in rpc_inaddr_loopback = {
+ .sin_family = AF_INET,
+ .sin_addr.s_addr = htonl(INADDR_ANY),
+};
+
+static const struct sockaddr_in6 rpc_in6addr_loopback = {
+ .sin6_family = AF_INET6,
+ .sin6_addr = IN6ADDR_ANY_INIT,
+};
+
+/*
+ * Try a getsockname() on a connected datagram socket. Using a
+ * connected datagram socket prevents leaving a socket in TIME_WAIT.
+ * This conserves the ephemeral port number space.
+ *
+ * Returns zero and fills in "buf" if successful; otherwise, a
+ * negative errno is returned.
+ */
+static int rpc_sockname(struct net *net, struct sockaddr *sap, size_t salen,
+ struct sockaddr *buf, int buflen)
+{
+ struct socket *sock;
+ int err;
+
+ err = __sock_create(net, sap->sa_family,
+ SOCK_DGRAM, IPPROTO_UDP, &sock, 1);
+ if (err < 0) {
+ dprintk("RPC: can't create UDP socket (%d)\n", err);
+ goto out;
+ }
+
+ switch (sap->sa_family) {
+ case AF_INET:
+ err = kernel_bind(sock,
+ (struct sockaddr *)&rpc_inaddr_loopback,
+ sizeof(rpc_inaddr_loopback));
+ break;
+ case AF_INET6:
+ err = kernel_bind(sock,
+ (struct sockaddr *)&rpc_in6addr_loopback,
+ sizeof(rpc_in6addr_loopback));
+ break;
+ default:
+ err = -EAFNOSUPPORT;
+ goto out;
+ }
+ if (err < 0) {
+ dprintk("RPC: can't bind UDP socket (%d)\n", err);
+ goto out_release;
+ }
+
+ err = kernel_connect(sock, sap, salen, 0);
+ if (err < 0) {
+ dprintk("RPC: can't connect UDP socket (%d)\n", err);
+ goto out_release;
+ }
+
+ err = kernel_getsockname(sock, buf, &buflen);
+ if (err < 0) {
+ dprintk("RPC: getsockname failed (%d)\n", err);
+ goto out_release;
+ }
+
+ err = 0;
+ if (buf->sa_family == AF_INET6) {
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)buf;
+ sin6->sin6_scope_id = 0;
+ }
+ dprintk("RPC: %s succeeded\n", __func__);
+
+out_release:
+ sock_release(sock);
+out:
+ return err;
+}
+
+/*
+ * Scraping a connected socket failed, so we don't have a useable
+ * local address. Fallback: generate an address that will prevent
+ * the server from calling us back.
+ *
+ * Returns zero and fills in "buf" if successful; otherwise, a
+ * negative errno is returned.
+ */
+static int rpc_anyaddr(int family, struct sockaddr *buf, size_t buflen)
+{
+ switch (family) {
+ case AF_INET:
+ if (buflen < sizeof(rpc_inaddr_loopback))
+ return -EINVAL;
+ memcpy(buf, &rpc_inaddr_loopback,
+ sizeof(rpc_inaddr_loopback));
+ break;
+ case AF_INET6:
+ if (buflen < sizeof(rpc_in6addr_loopback))
+ return -EINVAL;
+ memcpy(buf, &rpc_in6addr_loopback,
+ sizeof(rpc_in6addr_loopback));
+ default:
+ dprintk("RPC: %s: address family not supported\n",
+ __func__);
+ return -EAFNOSUPPORT;
+ }
+ dprintk("RPC: %s: succeeded\n", __func__);
+ return 0;
+}
+
+/**
+ * rpc_localaddr - discover local endpoint address for an RPC client
+ * @clnt: RPC client structure
+ * @buf: target buffer
+ * @buflen: size of target buffer, in bytes
+ *
+ * Returns zero and fills in "buf" and "buflen" if successful;
+ * otherwise, a negative errno is returned.
+ *
+ * This works even if the underlying transport is not currently connected,
+ * or if the upper layer never previously provided a source address.
+ *
+ * The result of this function call is transient: multiple calls in
+ * succession may give different results, depending on how local
+ * networking configuration changes over time.
+ */
+int rpc_localaddr(struct rpc_clnt *clnt, struct sockaddr *buf, size_t buflen)
+{
+ struct sockaddr_storage address;
+ struct sockaddr *sap = (struct sockaddr *)&address;
+ struct rpc_xprt *xprt;
+ struct net *net;
+ size_t salen;
+ int err;
+
+ rcu_read_lock();
+ xprt = rcu_dereference(clnt->cl_xprt);
+ salen = xprt->addrlen;
+ memcpy(sap, &xprt->addr, salen);
+ net = get_net(xprt->xprt_net);
+ rcu_read_unlock();
+
+ rpc_set_port(sap, 0);
+ err = rpc_sockname(net, sap, salen, buf, buflen);
+ put_net(net);
+ if (err != 0)
+ /* Couldn't discover local address, return ANYADDR */
+ return rpc_anyaddr(sap->sa_family, buf, buflen);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rpc_localaddr);
+
void
rpc_setbufsize(struct rpc_clnt *clnt, unsigned int sndsize, unsigned int rcvsize)
{
- struct rpc_xprt *xprt = clnt->cl_xprt;
+ struct rpc_xprt *xprt;
+
+ rcu_read_lock();
+ xprt = rcu_dereference(clnt->cl_xprt);
if (xprt->ops->set_buffer_size)
xprt->ops->set_buffer_size(xprt, sndsize, rcvsize);
+ rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(rpc_setbufsize);
-/*
- * Return size of largest payload RPC client can support, in bytes
+/**
+ * rpc_protocol - Get transport protocol number for an RPC client
+ * @clnt: RPC client to query
+ *
+ */
+int rpc_protocol(struct rpc_clnt *clnt)
+{
+ int protocol;
+
+ rcu_read_lock();
+ protocol = rcu_dereference(clnt->cl_xprt)->prot;
+ rcu_read_unlock();
+ return protocol;
+}
+EXPORT_SYMBOL_GPL(rpc_protocol);
+
+/**
+ * rpc_net_ns - Get the network namespace for this RPC client
+ * @clnt: RPC client to query
+ *
+ */
+struct net *rpc_net_ns(struct rpc_clnt *clnt)
+{
+ struct net *ret;
+
+ rcu_read_lock();
+ ret = rcu_dereference(clnt->cl_xprt)->xprt_net;
+ rcu_read_unlock();
+ return ret;
+}
+EXPORT_SYMBOL_GPL(rpc_net_ns);
+
+/**
+ * rpc_max_payload - Get maximum payload size for a transport, in bytes
+ * @clnt: RPC client to query
*
* For stream transports, this is one RPC record fragment (see RFC
* 1831), as we don't support multi-record requests yet. For datagram
@@ -825,7 +1119,12 @@ EXPORT_SYMBOL_GPL(rpc_setbufsize);
*/
size_t rpc_max_payload(struct rpc_clnt *clnt)
{
- return clnt->cl_xprt->max_payload;
+ size_t ret;
+
+ rcu_read_lock();
+ ret = rcu_dereference(clnt->cl_xprt)->max_payload;
+ rcu_read_unlock();
+ return ret;
}
EXPORT_SYMBOL_GPL(rpc_max_payload);
@@ -836,8 +1135,11 @@ EXPORT_SYMBOL_GPL(rpc_max_payload);
*/
void rpc_force_rebind(struct rpc_clnt *clnt)
{
- if (clnt->cl_autobind)
- xprt_clear_bound(clnt->cl_xprt);
+ if (clnt->cl_autobind) {
+ rcu_read_lock();
+ xprt_clear_bound(rcu_dereference(clnt->cl_xprt));
+ rcu_read_unlock();
+ }
}
EXPORT_SYMBOL_GPL(rpc_force_rebind);
@@ -1163,6 +1465,7 @@ call_bind_status(struct rpc_task *task)
return;
}
+ trace_rpc_bind_status(task);
switch (task->tk_status) {
case -ENOMEM:
dprintk("RPC: %5u rpcbind out of memory\n", task->tk_pid);
@@ -1262,6 +1565,7 @@ call_connect_status(struct rpc_task *task)
return;
}
+ trace_rpc_connect_status(task, status);
switch (status) {
/* if soft mounted, test if we've timed out */
case -ETIMEDOUT:
@@ -1450,6 +1754,7 @@ call_status(struct rpc_task *task)
return;
}
+ trace_rpc_call_status(task);
task->tk_status = 0;
switch(status) {
case -EHOSTDOWN:
@@ -1513,8 +1818,11 @@ call_timeout(struct rpc_task *task)
}
if (RPC_IS_SOFT(task)) {
if (clnt->cl_chatty)
+ rcu_read_lock();
printk(KERN_NOTICE "%s: server %s not responding, timed out\n",
- clnt->cl_protname, clnt->cl_server);
+ clnt->cl_protname,
+ rcu_dereference(clnt->cl_xprt)->servername);
+ rcu_read_unlock();
if (task->tk_flags & RPC_TASK_TIMEOUT)
rpc_exit(task, -ETIMEDOUT);
else
@@ -1524,9 +1832,13 @@ call_timeout(struct rpc_task *task)
if (!(task->tk_flags & RPC_CALL_MAJORSEEN)) {
task->tk_flags |= RPC_CALL_MAJORSEEN;
- if (clnt->cl_chatty)
+ if (clnt->cl_chatty) {
+ rcu_read_lock();
printk(KERN_NOTICE "%s: server %s not responding, still trying\n",
- clnt->cl_protname, clnt->cl_server);
+ clnt->cl_protname,
+ rcu_dereference(clnt->cl_xprt)->servername);
+ rcu_read_unlock();
+ }
}
rpc_force_rebind(clnt);
/*
@@ -1555,9 +1867,13 @@ call_decode(struct rpc_task *task)
dprint_status(task);
if (task->tk_flags & RPC_CALL_MAJORSEEN) {
- if (clnt->cl_chatty)
+ if (clnt->cl_chatty) {
+ rcu_read_lock();
printk(KERN_NOTICE "%s: server %s OK\n",
- clnt->cl_protname, clnt->cl_server);
+ clnt->cl_protname,
+ rcu_dereference(clnt->cl_xprt)->servername);
+ rcu_read_unlock();
+ }
task->tk_flags &= ~RPC_CALL_MAJORSEEN;
}
@@ -1635,6 +1951,7 @@ rpc_encode_header(struct rpc_task *task)
static __be32 *
rpc_verify_header(struct rpc_task *task)
{
+ struct rpc_clnt *clnt = task->tk_client;
struct kvec *iov = &task->tk_rqstp->rq_rcv_buf.head[0];
int len = task->tk_rqstp->rq_rcv_buf.len >> 2;
__be32 *p = iov->iov_base;
@@ -1707,8 +2024,11 @@ rpc_verify_header(struct rpc_task *task)
task->tk_action = call_bind;
goto out_retry;
case RPC_AUTH_TOOWEAK:
+ rcu_read_lock();
printk(KERN_NOTICE "RPC: server %s requires stronger "
- "authentication.\n", task->tk_client->cl_server);
+ "authentication.\n",
+ rcu_dereference(clnt->cl_xprt)->servername);
+ rcu_read_unlock();
break;
default:
dprintk("RPC: %5u %s: unknown auth error: %x\n",
@@ -1731,28 +2051,27 @@ rpc_verify_header(struct rpc_task *task)
case RPC_SUCCESS:
return p;
case RPC_PROG_UNAVAIL:
- dprintk("RPC: %5u %s: program %u is unsupported by server %s\n",
- task->tk_pid, __func__,
- (unsigned int)task->tk_client->cl_prog,
- task->tk_client->cl_server);
+ dprintk_rcu("RPC: %5u %s: program %u is unsupported "
+ "by server %s\n", task->tk_pid, __func__,
+ (unsigned int)clnt->cl_prog,
+ rcu_dereference(clnt->cl_xprt)->servername);
error = -EPFNOSUPPORT;
goto out_err;
case RPC_PROG_MISMATCH:
- dprintk("RPC: %5u %s: program %u, version %u unsupported by "
- "server %s\n", task->tk_pid, __func__,
- (unsigned int)task->tk_client->cl_prog,
- (unsigned int)task->tk_client->cl_vers,
- task->tk_client->cl_server);
+ dprintk_rcu("RPC: %5u %s: program %u, version %u unsupported "
+ "by server %s\n", task->tk_pid, __func__,
+ (unsigned int)clnt->cl_prog,
+ (unsigned int)clnt->cl_vers,
+ rcu_dereference(clnt->cl_xprt)->servername);
error = -EPROTONOSUPPORT;
goto out_err;
case RPC_PROC_UNAVAIL:
- dprintk("RPC: %5u %s: proc %s unsupported by program %u, "
+ dprintk_rcu("RPC: %5u %s: proc %s unsupported by program %u, "
"version %u on server %s\n",
task->tk_pid, __func__,
rpc_proc_name(task),
- task->tk_client->cl_prog,
- task->tk_client->cl_vers,
- task->tk_client->cl_server);
+ clnt->cl_prog, clnt->cl_vers,
+ rcu_dereference(clnt->cl_xprt)->servername);
error = -EOPNOTSUPP;
goto out_err;
case RPC_GARBAGE_ARGS:
@@ -1766,7 +2085,7 @@ rpc_verify_header(struct rpc_task *task)
}
out_garbage:
- task->tk_client->cl_stats->rpcgarbage++;
+ clnt->cl_stats->rpcgarbage++;
if (task->tk_garb_retry) {
task->tk_garb_retry--;
dprintk("RPC: %5u %s: retrying\n",
@@ -1852,14 +2171,15 @@ static void rpc_show_task(const struct rpc_clnt *clnt,
task->tk_action, rpc_waitq);
}
-void rpc_show_tasks(void)
+void rpc_show_tasks(struct net *net)
{
struct rpc_clnt *clnt;
struct rpc_task *task;
int header = 0;
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
- spin_lock(&rpc_client_lock);
- list_for_each_entry(clnt, &all_clients, cl_clients) {
+ spin_lock(&sn->rpc_client_lock);
+ list_for_each_entry(clnt, &sn->all_clients, cl_clients) {
spin_lock(&clnt->cl_lock);
list_for_each_entry(task, &clnt->cl_tasks, tk_task) {
if (!header) {
@@ -1870,6 +2190,6 @@ void rpc_show_tasks(void)
}
spin_unlock(&clnt->cl_lock);
}
- spin_unlock(&rpc_client_lock);
+ spin_unlock(&sn->rpc_client_lock);
}
#endif
diff --git a/net/sunrpc/netns.h b/net/sunrpc/netns.h
index d013bf211cae..ce7bd449173d 100644
--- a/net/sunrpc/netns.h
+++ b/net/sunrpc/netns.h
@@ -9,6 +9,20 @@ struct cache_detail;
struct sunrpc_net {
struct proc_dir_entry *proc_net_rpc;
struct cache_detail *ip_map_cache;
+ struct cache_detail *unix_gid_cache;
+ struct cache_detail *rsc_cache;
+ struct cache_detail *rsi_cache;
+
+ struct super_block *pipefs_sb;
+ struct mutex pipefs_sb_lock;
+
+ struct list_head all_clients;
+ spinlock_t rpc_client_lock;
+
+ struct rpc_clnt *rpcb_local_clnt;
+ struct rpc_clnt *rpcb_local_clnt4;
+ spinlock_t rpcb_clnt_lock;
+ unsigned int rpcb_users;
};
extern int sunrpc_net_id;
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 7d6dd6efbdbe..c84c0e0c41cb 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -16,9 +16,9 @@
#include <linux/namei.h>
#include <linux/fsnotify.h>
#include <linux/kernel.h>
+#include <linux/rcupdate.h>
#include <asm/ioctls.h>
-#include <linux/fs.h>
#include <linux/poll.h>
#include <linux/wait.h>
#include <linux/seq_file.h>
@@ -27,9 +27,15 @@
#include <linux/workqueue.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
#include <linux/sunrpc/cache.h>
+#include <linux/nsproxy.h>
+#include <linux/notifier.h>
-static struct vfsmount *rpc_mnt __read_mostly;
-static int rpc_mount_count;
+#include "netns.h"
+#include "sunrpc.h"
+
+#define RPCDBG_FACILITY RPCDBG_DEBUG
+
+#define NET_NAME(net) ((net == &init_net) ? " (init_net)" : "")
static struct file_system_type rpc_pipe_fs_type;
@@ -38,7 +44,21 @@ static struct kmem_cache *rpc_inode_cachep __read_mostly;
#define RPC_UPCALL_TIMEOUT (30*HZ)
-static void rpc_purge_list(struct rpc_inode *rpci, struct list_head *head,
+static BLOCKING_NOTIFIER_HEAD(rpc_pipefs_notifier_list);
+
+int rpc_pipefs_notifier_register(struct notifier_block *nb)
+{
+ return blocking_notifier_chain_cond_register(&rpc_pipefs_notifier_list, nb);
+}
+EXPORT_SYMBOL_GPL(rpc_pipefs_notifier_register);
+
+void rpc_pipefs_notifier_unregister(struct notifier_block *nb)
+{
+ blocking_notifier_chain_unregister(&rpc_pipefs_notifier_list, nb);
+}
+EXPORT_SYMBOL_GPL(rpc_pipefs_notifier_unregister);
+
+static void rpc_purge_list(wait_queue_head_t *waitq, struct list_head *head,
void (*destroy_msg)(struct rpc_pipe_msg *), int err)
{
struct rpc_pipe_msg *msg;
@@ -51,30 +71,31 @@ static void rpc_purge_list(struct rpc_inode *rpci, struct list_head *head,
msg->errno = err;
destroy_msg(msg);
} while (!list_empty(head));
- wake_up(&rpci->waitq);
+ wake_up(waitq);
}
static void
rpc_timeout_upcall_queue(struct work_struct *work)
{
LIST_HEAD(free_list);
- struct rpc_inode *rpci =
- container_of(work, struct rpc_inode, queue_timeout.work);
- struct inode *inode = &rpci->vfs_inode;
+ struct rpc_pipe *pipe =
+ container_of(work, struct rpc_pipe, queue_timeout.work);
void (*destroy_msg)(struct rpc_pipe_msg *);
+ struct dentry *dentry;
- spin_lock(&inode->i_lock);
- if (rpci->ops == NULL) {
- spin_unlock(&inode->i_lock);
- return;
+ spin_lock(&pipe->lock);
+ destroy_msg = pipe->ops->destroy_msg;
+ if (pipe->nreaders == 0) {
+ list_splice_init(&pipe->pipe, &free_list);
+ pipe->pipelen = 0;
}
- destroy_msg = rpci->ops->destroy_msg;
- if (rpci->nreaders == 0) {
- list_splice_init(&rpci->pipe, &free_list);
- rpci->pipelen = 0;
+ dentry = dget(pipe->dentry);
+ spin_unlock(&pipe->lock);
+ if (dentry) {
+ rpc_purge_list(&RPC_I(dentry->d_inode)->waitq,
+ &free_list, destroy_msg, -ETIMEDOUT);
+ dput(dentry);
}
- spin_unlock(&inode->i_lock);
- rpc_purge_list(rpci, &free_list, destroy_msg, -ETIMEDOUT);
}
ssize_t rpc_pipe_generic_upcall(struct file *filp, struct rpc_pipe_msg *msg,
@@ -108,30 +129,31 @@ EXPORT_SYMBOL_GPL(rpc_pipe_generic_upcall);
* initialize the fields of @msg (other than @msg->list) appropriately.
*/
int
-rpc_queue_upcall(struct inode *inode, struct rpc_pipe_msg *msg)
+rpc_queue_upcall(struct rpc_pipe *pipe, struct rpc_pipe_msg *msg)
{
- struct rpc_inode *rpci = RPC_I(inode);
int res = -EPIPE;
+ struct dentry *dentry;
- spin_lock(&inode->i_lock);
- if (rpci->ops == NULL)
- goto out;
- if (rpci->nreaders) {
- list_add_tail(&msg->list, &rpci->pipe);
- rpci->pipelen += msg->len;
+ spin_lock(&pipe->lock);
+ if (pipe->nreaders) {
+ list_add_tail(&msg->list, &pipe->pipe);
+ pipe->pipelen += msg->len;
res = 0;
- } else if (rpci->flags & RPC_PIPE_WAIT_FOR_OPEN) {
- if (list_empty(&rpci->pipe))
+ } else if (pipe->flags & RPC_PIPE_WAIT_FOR_OPEN) {
+ if (list_empty(&pipe->pipe))
queue_delayed_work(rpciod_workqueue,
- &rpci->queue_timeout,
+ &pipe->queue_timeout,
RPC_UPCALL_TIMEOUT);
- list_add_tail(&msg->list, &rpci->pipe);
- rpci->pipelen += msg->len;
+ list_add_tail(&msg->list, &pipe->pipe);
+ pipe->pipelen += msg->len;
res = 0;
}
-out:
- spin_unlock(&inode->i_lock);
- wake_up(&rpci->waitq);
+ dentry = dget(pipe->dentry);
+ spin_unlock(&pipe->lock);
+ if (dentry) {
+ wake_up(&RPC_I(dentry->d_inode)->waitq);
+ dput(dentry);
+ }
return res;
}
EXPORT_SYMBOL_GPL(rpc_queue_upcall);
@@ -145,29 +167,26 @@ rpc_inode_setowner(struct inode *inode, void *private)
static void
rpc_close_pipes(struct inode *inode)
{
- struct rpc_inode *rpci = RPC_I(inode);
- const struct rpc_pipe_ops *ops;
+ struct rpc_pipe *pipe = RPC_I(inode)->pipe;
int need_release;
+ LIST_HEAD(free_list);
mutex_lock(&inode->i_mutex);
- ops = rpci->ops;
- if (ops != NULL) {
- LIST_HEAD(free_list);
- spin_lock(&inode->i_lock);
- need_release = rpci->nreaders != 0 || rpci->nwriters != 0;
- rpci->nreaders = 0;
- list_splice_init(&rpci->in_upcall, &free_list);
- list_splice_init(&rpci->pipe, &free_list);
- rpci->pipelen = 0;
- rpci->ops = NULL;
- spin_unlock(&inode->i_lock);
- rpc_purge_list(rpci, &free_list, ops->destroy_msg, -EPIPE);
- rpci->nwriters = 0;
- if (need_release && ops->release_pipe)
- ops->release_pipe(inode);
- cancel_delayed_work_sync(&rpci->queue_timeout);
- }
+ spin_lock(&pipe->lock);
+ need_release = pipe->nreaders != 0 || pipe->nwriters != 0;
+ pipe->nreaders = 0;
+ list_splice_init(&pipe->in_upcall, &free_list);
+ list_splice_init(&pipe->pipe, &free_list);
+ pipe->pipelen = 0;
+ pipe->dentry = NULL;
+ spin_unlock(&pipe->lock);
+ rpc_purge_list(&RPC_I(inode)->waitq, &free_list, pipe->ops->destroy_msg, -EPIPE);
+ pipe->nwriters = 0;
+ if (need_release && pipe->ops->release_pipe)
+ pipe->ops->release_pipe(inode);
+ cancel_delayed_work_sync(&pipe->queue_timeout);
rpc_inode_setowner(inode, NULL);
+ RPC_I(inode)->pipe = NULL;
mutex_unlock(&inode->i_mutex);
}
@@ -197,23 +216,24 @@ rpc_destroy_inode(struct inode *inode)
static int
rpc_pipe_open(struct inode *inode, struct file *filp)
{
- struct rpc_inode *rpci = RPC_I(inode);
+ struct rpc_pipe *pipe;
int first_open;
int res = -ENXIO;
mutex_lock(&inode->i_mutex);
- if (rpci->ops == NULL)
+ pipe = RPC_I(inode)->pipe;
+ if (pipe == NULL)
goto out;
- first_open = rpci->nreaders == 0 && rpci->nwriters == 0;
- if (first_open && rpci->ops->open_pipe) {
- res = rpci->ops->open_pipe(inode);
+ first_open = pipe->nreaders == 0 && pipe->nwriters == 0;
+ if (first_open && pipe->ops->open_pipe) {
+ res = pipe->ops->open_pipe(inode);
if (res)
goto out;
}
if (filp->f_mode & FMODE_READ)
- rpci->nreaders++;
+ pipe->nreaders++;
if (filp->f_mode & FMODE_WRITE)
- rpci->nwriters++;
+ pipe->nwriters++;
res = 0;
out:
mutex_unlock(&inode->i_mutex);
@@ -223,38 +243,39 @@ out:
static int
rpc_pipe_release(struct inode *inode, struct file *filp)
{
- struct rpc_inode *rpci = RPC_I(inode);
+ struct rpc_pipe *pipe;
struct rpc_pipe_msg *msg;
int last_close;
mutex_lock(&inode->i_mutex);
- if (rpci->ops == NULL)
+ pipe = RPC_I(inode)->pipe;
+ if (pipe == NULL)
goto out;
msg = filp->private_data;
if (msg != NULL) {
- spin_lock(&inode->i_lock);
+ spin_lock(&pipe->lock);
msg->errno = -EAGAIN;
list_del_init(&msg->list);
- spin_unlock(&inode->i_lock);
- rpci->ops->destroy_msg(msg);
+ spin_unlock(&pipe->lock);
+ pipe->ops->destroy_msg(msg);
}
if (filp->f_mode & FMODE_WRITE)
- rpci->nwriters --;
+ pipe->nwriters --;
if (filp->f_mode & FMODE_READ) {
- rpci->nreaders --;
- if (rpci->nreaders == 0) {
+ pipe->nreaders --;
+ if (pipe->nreaders == 0) {
LIST_HEAD(free_list);
- spin_lock(&inode->i_lock);
- list_splice_init(&rpci->pipe, &free_list);
- rpci->pipelen = 0;
- spin_unlock(&inode->i_lock);
- rpc_purge_list(rpci, &free_list,
- rpci->ops->destroy_msg, -EAGAIN);
+ spin_lock(&pipe->lock);
+ list_splice_init(&pipe->pipe, &free_list);
+ pipe->pipelen = 0;
+ spin_unlock(&pipe->lock);
+ rpc_purge_list(&RPC_I(inode)->waitq, &free_list,
+ pipe->ops->destroy_msg, -EAGAIN);
}
}
- last_close = rpci->nwriters == 0 && rpci->nreaders == 0;
- if (last_close && rpci->ops->release_pipe)
- rpci->ops->release_pipe(inode);
+ last_close = pipe->nwriters == 0 && pipe->nreaders == 0;
+ if (last_close && pipe->ops->release_pipe)
+ pipe->ops->release_pipe(inode);
out:
mutex_unlock(&inode->i_mutex);
return 0;
@@ -264,39 +285,40 @@ static ssize_t
rpc_pipe_read(struct file *filp, char __user *buf, size_t len, loff_t *offset)
{
struct inode *inode = filp->f_path.dentry->d_inode;
- struct rpc_inode *rpci = RPC_I(inode);
+ struct rpc_pipe *pipe;
struct rpc_pipe_msg *msg;
int res = 0;
mutex_lock(&inode->i_mutex);
- if (rpci->ops == NULL) {
+ pipe = RPC_I(inode)->pipe;
+ if (pipe == NULL) {
res = -EPIPE;
goto out_unlock;
}
msg = filp->private_data;
if (msg == NULL) {
- spin_lock(&inode->i_lock);
- if (!list_empty(&rpci->pipe)) {
- msg = list_entry(rpci->pipe.next,
+ spin_lock(&pipe->lock);
+ if (!list_empty(&pipe->pipe)) {
+ msg = list_entry(pipe->pipe.next,
struct rpc_pipe_msg,
list);
- list_move(&msg->list, &rpci->in_upcall);
- rpci->pipelen -= msg->len;
+ list_move(&msg->list, &pipe->in_upcall);
+ pipe->pipelen -= msg->len;
filp->private_data = msg;
msg->copied = 0;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
if (msg == NULL)
goto out_unlock;
}
/* NOTE: it is up to the callback to update msg->copied */
- res = rpci->ops->upcall(filp, msg, buf, len);
+ res = pipe->ops->upcall(filp, msg, buf, len);
if (res < 0 || msg->len == msg->copied) {
filp->private_data = NULL;
- spin_lock(&inode->i_lock);
+ spin_lock(&pipe->lock);
list_del_init(&msg->list);
- spin_unlock(&inode->i_lock);
- rpci->ops->destroy_msg(msg);
+ spin_unlock(&pipe->lock);
+ pipe->ops->destroy_msg(msg);
}
out_unlock:
mutex_unlock(&inode->i_mutex);
@@ -307,13 +329,12 @@ static ssize_t
rpc_pipe_write(struct file *filp, const char __user *buf, size_t len, loff_t *offset)
{
struct inode *inode = filp->f_path.dentry->d_inode;
- struct rpc_inode *rpci = RPC_I(inode);
int res;
mutex_lock(&inode->i_mutex);
res = -EPIPE;
- if (rpci->ops != NULL)
- res = rpci->ops->downcall(filp, buf, len);
+ if (RPC_I(inode)->pipe != NULL)
+ res = RPC_I(inode)->pipe->ops->downcall(filp, buf, len);
mutex_unlock(&inode->i_mutex);
return res;
}
@@ -321,17 +342,18 @@ rpc_pipe_write(struct file *filp, const char __user *buf, size_t len, loff_t *of
static unsigned int
rpc_pipe_poll(struct file *filp, struct poll_table_struct *wait)
{
- struct rpc_inode *rpci;
- unsigned int mask = 0;
+ struct inode *inode = filp->f_path.dentry->d_inode;
+ struct rpc_inode *rpci = RPC_I(inode);
+ unsigned int mask = POLLOUT | POLLWRNORM;
- rpci = RPC_I(filp->f_path.dentry->d_inode);
poll_wait(filp, &rpci->waitq, wait);
- mask = POLLOUT | POLLWRNORM;
- if (rpci->ops == NULL)
+ mutex_lock(&inode->i_mutex);
+ if (rpci->pipe == NULL)
mask |= POLLERR | POLLHUP;
- if (filp->private_data || !list_empty(&rpci->pipe))
+ else if (filp->private_data || !list_empty(&rpci->pipe->pipe))
mask |= POLLIN | POLLRDNORM;
+ mutex_unlock(&inode->i_mutex);
return mask;
}
@@ -339,23 +361,26 @@ static long
rpc_pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
struct inode *inode = filp->f_path.dentry->d_inode;
- struct rpc_inode *rpci = RPC_I(inode);
+ struct rpc_pipe *pipe;
int len;
switch (cmd) {
case FIONREAD:
- spin_lock(&inode->i_lock);
- if (rpci->ops == NULL) {
- spin_unlock(&inode->i_lock);
+ mutex_lock(&inode->i_mutex);
+ pipe = RPC_I(inode)->pipe;
+ if (pipe == NULL) {
+ mutex_unlock(&inode->i_mutex);
return -EPIPE;
}
- len = rpci->pipelen;
+ spin_lock(&pipe->lock);
+ len = pipe->pipelen;
if (filp->private_data) {
struct rpc_pipe_msg *msg;
msg = filp->private_data;
len += msg->len - msg->copied;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&pipe->lock);
+ mutex_unlock(&inode->i_mutex);
return put_user(len, (int __user *)arg);
default:
return -EINVAL;
@@ -378,12 +403,15 @@ rpc_show_info(struct seq_file *m, void *v)
{
struct rpc_clnt *clnt = m->private;
- seq_printf(m, "RPC server: %s\n", clnt->cl_server);
+ rcu_read_lock();
+ seq_printf(m, "RPC server: %s\n",
+ rcu_dereference(clnt->cl_xprt)->servername);
seq_printf(m, "service: %s (%d) version %d\n", clnt->cl_protname,
clnt->cl_prog, clnt->cl_vers);
seq_printf(m, "address: %s\n", rpc_peeraddr2str(clnt, RPC_DISPLAY_ADDR));
seq_printf(m, "protocol: %s\n", rpc_peeraddr2str(clnt, RPC_DISPLAY_PROTO));
seq_printf(m, "port: %s\n", rpc_peeraddr2str(clnt, RPC_DISPLAY_PORT));
+ rcu_read_unlock();
return 0;
}
@@ -440,23 +468,6 @@ struct rpc_filelist {
umode_t mode;
};
-struct vfsmount *rpc_get_mount(void)
-{
- int err;
-
- err = simple_pin_fs(&rpc_pipe_fs_type, &rpc_mnt, &rpc_mount_count);
- if (err != 0)
- return ERR_PTR(err);
- return rpc_mnt;
-}
-EXPORT_SYMBOL_GPL(rpc_get_mount);
-
-void rpc_put_mount(void)
-{
- simple_release_fs(&rpc_mnt, &rpc_mount_count);
-}
-EXPORT_SYMBOL_GPL(rpc_put_mount);
-
static int rpc_delete_dentry(const struct dentry *dentry)
{
return 1;
@@ -540,12 +551,47 @@ static int __rpc_mkdir(struct inode *dir, struct dentry *dentry,
return 0;
}
-static int __rpc_mkpipe(struct inode *dir, struct dentry *dentry,
- umode_t mode,
- const struct file_operations *i_fop,
- void *private,
- const struct rpc_pipe_ops *ops,
- int flags)
+static void
+init_pipe(struct rpc_pipe *pipe)
+{
+ pipe->nreaders = 0;
+ pipe->nwriters = 0;
+ INIT_LIST_HEAD(&pipe->in_upcall);
+ INIT_LIST_HEAD(&pipe->in_downcall);
+ INIT_LIST_HEAD(&pipe->pipe);
+ pipe->pipelen = 0;
+ INIT_DELAYED_WORK(&pipe->queue_timeout,
+ rpc_timeout_upcall_queue);
+ pipe->ops = NULL;
+ spin_lock_init(&pipe->lock);
+ pipe->dentry = NULL;
+}
+
+void rpc_destroy_pipe_data(struct rpc_pipe *pipe)
+{
+ kfree(pipe);
+}
+EXPORT_SYMBOL_GPL(rpc_destroy_pipe_data);
+
+struct rpc_pipe *rpc_mkpipe_data(const struct rpc_pipe_ops *ops, int flags)
+{
+ struct rpc_pipe *pipe;
+
+ pipe = kzalloc(sizeof(struct rpc_pipe), GFP_KERNEL);
+ if (!pipe)
+ return ERR_PTR(-ENOMEM);
+ init_pipe(pipe);
+ pipe->ops = ops;
+ pipe->flags = flags;
+ return pipe;
+}
+EXPORT_SYMBOL_GPL(rpc_mkpipe_data);
+
+static int __rpc_mkpipe_dentry(struct inode *dir, struct dentry *dentry,
+ umode_t mode,
+ const struct file_operations *i_fop,
+ void *private,
+ struct rpc_pipe *pipe)
{
struct rpc_inode *rpci;
int err;
@@ -554,10 +600,8 @@ static int __rpc_mkpipe(struct inode *dir, struct dentry *dentry,
if (err)
return err;
rpci = RPC_I(dentry->d_inode);
- rpci->nkern_readwriters = 1;
rpci->private = private;
- rpci->flags = flags;
- rpci->ops = ops;
+ rpci->pipe = pipe;
fsnotify_create(dir, dentry);
return 0;
}
@@ -573,6 +617,22 @@ static int __rpc_rmdir(struct inode *dir, struct dentry *dentry)
return ret;
}
+int rpc_rmdir(struct dentry *dentry)
+{
+ struct dentry *parent;
+ struct inode *dir;
+ int error;
+
+ parent = dget_parent(dentry);
+ dir = parent->d_inode;
+ mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
+ error = __rpc_rmdir(dir, dentry);
+ mutex_unlock(&dir->i_mutex);
+ dput(parent);
+ return error;
+}
+EXPORT_SYMBOL_GPL(rpc_rmdir);
+
static int __rpc_unlink(struct inode *dir, struct dentry *dentry)
{
int ret;
@@ -587,16 +647,12 @@ static int __rpc_unlink(struct inode *dir, struct dentry *dentry)
static int __rpc_rmpipe(struct inode *dir, struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
- struct rpc_inode *rpci = RPC_I(inode);
- rpci->nkern_readwriters--;
- if (rpci->nkern_readwriters != 0)
- return 0;
rpc_close_pipes(inode);
return __rpc_unlink(dir, dentry);
}
-static struct dentry *__rpc_lookup_create(struct dentry *parent,
+static struct dentry *__rpc_lookup_create_exclusive(struct dentry *parent,
struct qstr *name)
{
struct dentry *dentry;
@@ -604,27 +660,13 @@ static struct dentry *__rpc_lookup_create(struct dentry *parent,
dentry = d_lookup(parent, name);
if (!dentry) {
dentry = d_alloc(parent, name);
- if (!dentry) {
- dentry = ERR_PTR(-ENOMEM);
- goto out_err;
- }
+ if (!dentry)
+ return ERR_PTR(-ENOMEM);
}
- if (!dentry->d_inode)
+ if (dentry->d_inode == NULL) {
d_set_d_op(dentry, &rpc_dentry_operations);
-out_err:
- return dentry;
-}
-
-static struct dentry *__rpc_lookup_create_exclusive(struct dentry *parent,
- struct qstr *name)
-{
- struct dentry *dentry;
-
- dentry = __rpc_lookup_create(parent, name);
- if (IS_ERR(dentry))
- return dentry;
- if (dentry->d_inode == NULL)
return dentry;
+ }
dput(dentry);
return ERR_PTR(-EEXIST);
}
@@ -779,7 +821,7 @@ static int rpc_rmdir_depopulate(struct dentry *dentry,
* @private: private data to associate with the pipe, for the caller's use
* @ops: operations defining the behavior of the pipe: upcall, downcall,
* release_pipe, open_pipe, and destroy_msg.
- * @flags: rpc_inode flags
+ * @flags: rpc_pipe flags
*
* Data is made available for userspace to read by calls to
* rpc_queue_upcall(). The actual reads will result in calls to
@@ -792,9 +834,8 @@ static int rpc_rmdir_depopulate(struct dentry *dentry,
* The @private argument passed here will be available to all these methods
* from the file pointer, via RPC_I(file->f_dentry->d_inode)->private.
*/
-struct dentry *rpc_mkpipe(struct dentry *parent, const char *name,
- void *private, const struct rpc_pipe_ops *ops,
- int flags)
+struct dentry *rpc_mkpipe_dentry(struct dentry *parent, const char *name,
+ void *private, struct rpc_pipe *pipe)
{
struct dentry *dentry;
struct inode *dir = parent->d_inode;
@@ -802,9 +843,9 @@ struct dentry *rpc_mkpipe(struct dentry *parent, const char *name,
struct qstr q;
int err;
- if (ops->upcall == NULL)
+ if (pipe->ops->upcall == NULL)
umode &= ~S_IRUGO;
- if (ops->downcall == NULL)
+ if (pipe->ops->downcall == NULL)
umode &= ~S_IWUGO;
q.name = name;
@@ -812,24 +853,11 @@ struct dentry *rpc_mkpipe(struct dentry *parent, const char *name,
q.hash = full_name_hash(q.name, q.len),
mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
- dentry = __rpc_lookup_create(parent, &q);
+ dentry = __rpc_lookup_create_exclusive(parent, &q);
if (IS_ERR(dentry))
goto out;
- if (dentry->d_inode) {
- struct rpc_inode *rpci = RPC_I(dentry->d_inode);
- if (rpci->private != private ||
- rpci->ops != ops ||
- rpci->flags != flags) {
- dput (dentry);
- err = -EBUSY;
- goto out_err;
- }
- rpci->nkern_readwriters++;
- goto out;
- }
-
- err = __rpc_mkpipe(dir, dentry, umode, &rpc_pipe_fops,
- private, ops, flags);
+ err = __rpc_mkpipe_dentry(dir, dentry, umode, &rpc_pipe_fops,
+ private, pipe);
if (err)
goto out_err;
out:
@@ -842,7 +870,7 @@ out_err:
err);
goto out;
}
-EXPORT_SYMBOL_GPL(rpc_mkpipe);
+EXPORT_SYMBOL_GPL(rpc_mkpipe_dentry);
/**
* rpc_unlink - remove a pipe
@@ -915,7 +943,7 @@ struct dentry *rpc_create_client_dir(struct dentry *dentry,
/**
* rpc_remove_client_dir - Remove a directory created with rpc_create_client_dir()
- * @dentry: directory to remove
+ * @clnt: rpc client
*/
int rpc_remove_client_dir(struct dentry *dentry)
{
@@ -1020,11 +1048,64 @@ static const struct rpc_filelist files[] = {
},
};
+/*
+ * This call can be used only in RPC pipefs mount notification hooks.
+ */
+struct dentry *rpc_d_lookup_sb(const struct super_block *sb,
+ const unsigned char *dir_name)
+{
+ struct qstr dir = {
+ .name = dir_name,
+ .len = strlen(dir_name),
+ .hash = full_name_hash(dir_name, strlen(dir_name)),
+ };
+
+ return d_lookup(sb->s_root, &dir);
+}
+EXPORT_SYMBOL_GPL(rpc_d_lookup_sb);
+
+void rpc_pipefs_init_net(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+ mutex_init(&sn->pipefs_sb_lock);
+}
+
+/*
+ * This call will be used for per network namespace operations calls.
+ * Note: Function will be returned with pipefs_sb_lock taken if superblock was
+ * found. This lock have to be released by rpc_put_sb_net() when all operations
+ * will be completed.
+ */
+struct super_block *rpc_get_sb_net(const struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+ mutex_lock(&sn->pipefs_sb_lock);
+ if (sn->pipefs_sb)
+ return sn->pipefs_sb;
+ mutex_unlock(&sn->pipefs_sb_lock);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(rpc_get_sb_net);
+
+void rpc_put_sb_net(const struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+ BUG_ON(sn->pipefs_sb == NULL);
+ mutex_unlock(&sn->pipefs_sb_lock);
+}
+EXPORT_SYMBOL_GPL(rpc_put_sb_net);
+
static int
rpc_fill_super(struct super_block *sb, void *data, int silent)
{
struct inode *inode;
struct dentry *root;
+ struct net *net = data;
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ int err;
sb->s_blocksize = PAGE_CACHE_SIZE;
sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
@@ -1038,21 +1119,54 @@ rpc_fill_super(struct super_block *sb, void *data, int silent)
return -ENOMEM;
if (rpc_populate(root, files, RPCAUTH_lockd, RPCAUTH_RootEOF, NULL))
return -ENOMEM;
+ dprintk("RPC: sending pipefs MOUNT notification for net %p%s\n", net,
+ NET_NAME(net));
+ err = blocking_notifier_call_chain(&rpc_pipefs_notifier_list,
+ RPC_PIPEFS_MOUNT,
+ sb);
+ if (err)
+ goto err_depopulate;
+ sb->s_fs_info = get_net(net);
+ sn->pipefs_sb = sb;
return 0;
+
+err_depopulate:
+ blocking_notifier_call_chain(&rpc_pipefs_notifier_list,
+ RPC_PIPEFS_UMOUNT,
+ sb);
+ __rpc_depopulate(root, files, RPCAUTH_lockd, RPCAUTH_RootEOF);
+ return err;
}
static struct dentry *
rpc_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
- return mount_single(fs_type, flags, data, rpc_fill_super);
+ return mount_ns(fs_type, flags, current->nsproxy->net_ns, rpc_fill_super);
+}
+
+static void rpc_kill_sb(struct super_block *sb)
+{
+ struct net *net = sb->s_fs_info;
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+ mutex_lock(&sn->pipefs_sb_lock);
+ sn->pipefs_sb = NULL;
+ mutex_unlock(&sn->pipefs_sb_lock);
+ put_net(net);
+ dprintk("RPC: sending pipefs UMOUNT notification for net %p%s\n", net,
+ NET_NAME(net));
+ blocking_notifier_call_chain(&rpc_pipefs_notifier_list,
+ RPC_PIPEFS_UMOUNT,
+ sb);
+ kill_litter_super(sb);
}
static struct file_system_type rpc_pipe_fs_type = {
.owner = THIS_MODULE,
.name = "rpc_pipefs",
.mount = rpc_mount,
- .kill_sb = kill_litter_super,
+ .kill_sb = rpc_kill_sb,
};
static void
@@ -1062,16 +1176,8 @@ init_once(void *foo)
inode_init_once(&rpci->vfs_inode);
rpci->private = NULL;
- rpci->nreaders = 0;
- rpci->nwriters = 0;
- INIT_LIST_HEAD(&rpci->in_upcall);
- INIT_LIST_HEAD(&rpci->in_downcall);
- INIT_LIST_HEAD(&rpci->pipe);
- rpci->pipelen = 0;
+ rpci->pipe = NULL;
init_waitqueue_head(&rpci->waitq);
- INIT_DELAYED_WORK(&rpci->queue_timeout,
- rpc_timeout_upcall_queue);
- rpci->ops = NULL;
}
int register_rpc_pipefs(void)
@@ -1085,17 +1191,24 @@ int register_rpc_pipefs(void)
init_once);
if (!rpc_inode_cachep)
return -ENOMEM;
+ err = rpc_clients_notifier_register();
+ if (err)
+ goto err_notifier;
err = register_filesystem(&rpc_pipe_fs_type);
- if (err) {
- kmem_cache_destroy(rpc_inode_cachep);
- return err;
- }
-
+ if (err)
+ goto err_register;
return 0;
+
+err_register:
+ rpc_clients_notifier_unregister();
+err_notifier:
+ kmem_cache_destroy(rpc_inode_cachep);
+ return err;
}
void unregister_rpc_pipefs(void)
{
+ rpc_clients_notifier_unregister();
kmem_cache_destroy(rpc_inode_cachep);
unregister_filesystem(&rpc_pipe_fs_type);
}
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 8761bf8e36fc..207a74696c9f 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -23,12 +23,15 @@
#include <linux/errno.h>
#include <linux/mutex.h>
#include <linux/slab.h>
+#include <linux/nsproxy.h>
#include <net/ipv6.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/xprtsock.h>
+#include "netns.h"
+
#ifdef RPC_DEBUG
# define RPCDBG_FACILITY RPCDBG_BIND
#endif
@@ -109,13 +112,7 @@ enum {
static void rpcb_getport_done(struct rpc_task *, void *);
static void rpcb_map_release(void *data);
-static struct rpc_program rpcb_program;
-
-static struct rpc_clnt * rpcb_local_clnt;
-static struct rpc_clnt * rpcb_local_clnt4;
-
-DEFINE_SPINLOCK(rpcb_clnt_lock);
-unsigned int rpcb_users;
+static const struct rpc_program rpcb_program;
struct rpcbind_args {
struct rpc_xprt * r_xprt;
@@ -140,8 +137,8 @@ struct rpcb_info {
struct rpc_procinfo * rpc_proc;
};
-static struct rpcb_info rpcb_next_version[];
-static struct rpcb_info rpcb_next_version6[];
+static const struct rpcb_info rpcb_next_version[];
+static const struct rpcb_info rpcb_next_version6[];
static const struct rpc_call_ops rpcb_getport_ops = {
.rpc_call_done = rpcb_getport_done,
@@ -164,32 +161,34 @@ static void rpcb_map_release(void *data)
kfree(map);
}
-static int rpcb_get_local(void)
+static int rpcb_get_local(struct net *net)
{
int cnt;
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
- spin_lock(&rpcb_clnt_lock);
- if (rpcb_users)
- rpcb_users++;
- cnt = rpcb_users;
- spin_unlock(&rpcb_clnt_lock);
+ spin_lock(&sn->rpcb_clnt_lock);
+ if (sn->rpcb_users)
+ sn->rpcb_users++;
+ cnt = sn->rpcb_users;
+ spin_unlock(&sn->rpcb_clnt_lock);
return cnt;
}
-void rpcb_put_local(void)
+void rpcb_put_local(struct net *net)
{
- struct rpc_clnt *clnt = rpcb_local_clnt;
- struct rpc_clnt *clnt4 = rpcb_local_clnt4;
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct rpc_clnt *clnt = sn->rpcb_local_clnt;
+ struct rpc_clnt *clnt4 = sn->rpcb_local_clnt4;
int shutdown;
- spin_lock(&rpcb_clnt_lock);
- if (--rpcb_users == 0) {
- rpcb_local_clnt = NULL;
- rpcb_local_clnt4 = NULL;
+ spin_lock(&sn->rpcb_clnt_lock);
+ if (--sn->rpcb_users == 0) {
+ sn->rpcb_local_clnt = NULL;
+ sn->rpcb_local_clnt4 = NULL;
}
- shutdown = !rpcb_users;
- spin_unlock(&rpcb_clnt_lock);
+ shutdown = !sn->rpcb_users;
+ spin_unlock(&sn->rpcb_clnt_lock);
if (shutdown) {
/*
@@ -202,30 +201,34 @@ void rpcb_put_local(void)
}
}
-static void rpcb_set_local(struct rpc_clnt *clnt, struct rpc_clnt *clnt4)
+static void rpcb_set_local(struct net *net, struct rpc_clnt *clnt,
+ struct rpc_clnt *clnt4)
{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
/* Protected by rpcb_create_local_mutex */
- rpcb_local_clnt = clnt;
- rpcb_local_clnt4 = clnt4;
+ sn->rpcb_local_clnt = clnt;
+ sn->rpcb_local_clnt4 = clnt4;
smp_wmb();
- rpcb_users = 1;
+ sn->rpcb_users = 1;
dprintk("RPC: created new rpcb local clients (rpcb_local_clnt: "
- "%p, rpcb_local_clnt4: %p)\n", rpcb_local_clnt,
- rpcb_local_clnt4);
+ "%p, rpcb_local_clnt4: %p) for net %p%s\n",
+ sn->rpcb_local_clnt, sn->rpcb_local_clnt4,
+ net, (net == &init_net) ? " (init_net)" : "");
}
/*
* Returns zero on success, otherwise a negative errno value
* is returned.
*/
-static int rpcb_create_local_unix(void)
+static int rpcb_create_local_unix(struct net *net)
{
static const struct sockaddr_un rpcb_localaddr_rpcbind = {
.sun_family = AF_LOCAL,
.sun_path = RPCBIND_SOCK_PATHNAME,
};
struct rpc_create_args args = {
- .net = &init_net,
+ .net = net,
.protocol = XPRT_TRANSPORT_LOCAL,
.address = (struct sockaddr *)&rpcb_localaddr_rpcbind,
.addrsize = sizeof(rpcb_localaddr_rpcbind),
@@ -258,7 +261,7 @@ static int rpcb_create_local_unix(void)
clnt4 = NULL;
}
- rpcb_set_local(clnt, clnt4);
+ rpcb_set_local(net, clnt, clnt4);
out:
return result;
@@ -268,7 +271,7 @@ out:
* Returns zero on success, otherwise a negative errno value
* is returned.
*/
-static int rpcb_create_local_net(void)
+static int rpcb_create_local_net(struct net *net)
{
static const struct sockaddr_in rpcb_inaddr_loopback = {
.sin_family = AF_INET,
@@ -276,7 +279,7 @@ static int rpcb_create_local_net(void)
.sin_port = htons(RPCBIND_PORT),
};
struct rpc_create_args args = {
- .net = &init_net,
+ .net = net,
.protocol = XPRT_TRANSPORT_TCP,
.address = (struct sockaddr *)&rpcb_inaddr_loopback,
.addrsize = sizeof(rpcb_inaddr_loopback),
@@ -310,7 +313,7 @@ static int rpcb_create_local_net(void)
clnt4 = NULL;
}
- rpcb_set_local(clnt, clnt4);
+ rpcb_set_local(net, clnt, clnt4);
out:
return result;
@@ -320,31 +323,32 @@ out:
* Returns zero on success, otherwise a negative errno value
* is returned.
*/
-int rpcb_create_local(void)
+int rpcb_create_local(struct net *net)
{
static DEFINE_MUTEX(rpcb_create_local_mutex);
int result = 0;
- if (rpcb_get_local())
+ if (rpcb_get_local(net))
return result;
mutex_lock(&rpcb_create_local_mutex);
- if (rpcb_get_local())
+ if (rpcb_get_local(net))
goto out;
- if (rpcb_create_local_unix() != 0)
- result = rpcb_create_local_net();
+ if (rpcb_create_local_unix(net) != 0)
+ result = rpcb_create_local_net(net);
out:
mutex_unlock(&rpcb_create_local_mutex);
return result;
}
-static struct rpc_clnt *rpcb_create(char *hostname, struct sockaddr *srvaddr,
- size_t salen, int proto, u32 version)
+static struct rpc_clnt *rpcb_create(struct net *net, const char *hostname,
+ struct sockaddr *srvaddr, size_t salen,
+ int proto, u32 version)
{
struct rpc_create_args args = {
- .net = &init_net,
+ .net = net,
.protocol = proto,
.address = srvaddr,
.addrsize = salen,
@@ -420,7 +424,7 @@ static int rpcb_register_call(struct rpc_clnt *clnt, struct rpc_message *msg)
* IN6ADDR_ANY (ie available for all AF_INET and AF_INET6
* addresses).
*/
-int rpcb_register(u32 prog, u32 vers, int prot, unsigned short port)
+int rpcb_register(struct net *net, u32 prog, u32 vers, int prot, unsigned short port)
{
struct rpcbind_args map = {
.r_prog = prog,
@@ -431,6 +435,7 @@ int rpcb_register(u32 prog, u32 vers, int prot, unsigned short port)
struct rpc_message msg = {
.rpc_argp = &map,
};
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
dprintk("RPC: %sregistering (%u, %u, %d, %u) with local "
"rpcbind\n", (port ? "" : "un"),
@@ -440,13 +445,14 @@ int rpcb_register(u32 prog, u32 vers, int prot, unsigned short port)
if (port)
msg.rpc_proc = &rpcb_procedures2[RPCBPROC_SET];
- return rpcb_register_call(rpcb_local_clnt, &msg);
+ return rpcb_register_call(sn->rpcb_local_clnt, &msg);
}
/*
* Fill in AF_INET family-specific arguments to register
*/
-static int rpcb_register_inet4(const struct sockaddr *sap,
+static int rpcb_register_inet4(struct sunrpc_net *sn,
+ const struct sockaddr *sap,
struct rpc_message *msg)
{
const struct sockaddr_in *sin = (const struct sockaddr_in *)sap;
@@ -465,7 +471,7 @@ static int rpcb_register_inet4(const struct sockaddr *sap,
if (port)
msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET];
- result = rpcb_register_call(rpcb_local_clnt4, msg);
+ result = rpcb_register_call(sn->rpcb_local_clnt4, msg);
kfree(map->r_addr);
return result;
}
@@ -473,7 +479,8 @@ static int rpcb_register_inet4(const struct sockaddr *sap,
/*
* Fill in AF_INET6 family-specific arguments to register
*/
-static int rpcb_register_inet6(const struct sockaddr *sap,
+static int rpcb_register_inet6(struct sunrpc_net *sn,
+ const struct sockaddr *sap,
struct rpc_message *msg)
{
const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sap;
@@ -492,12 +499,13 @@ static int rpcb_register_inet6(const struct sockaddr *sap,
if (port)
msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET];
- result = rpcb_register_call(rpcb_local_clnt4, msg);
+ result = rpcb_register_call(sn->rpcb_local_clnt4, msg);
kfree(map->r_addr);
return result;
}
-static int rpcb_unregister_all_protofamilies(struct rpc_message *msg)
+static int rpcb_unregister_all_protofamilies(struct sunrpc_net *sn,
+ struct rpc_message *msg)
{
struct rpcbind_args *map = msg->rpc_argp;
@@ -508,7 +516,7 @@ static int rpcb_unregister_all_protofamilies(struct rpc_message *msg)
map->r_addr = "";
msg->rpc_proc = &rpcb_procedures4[RPCBPROC_UNSET];
- return rpcb_register_call(rpcb_local_clnt4, msg);
+ return rpcb_register_call(sn->rpcb_local_clnt4, msg);
}
/**
@@ -554,7 +562,7 @@ static int rpcb_unregister_all_protofamilies(struct rpc_message *msg)
* service on any IPv4 address, but not on IPv6. The latter
* advertises the service on all IPv4 and IPv6 addresses.
*/
-int rpcb_v4_register(const u32 program, const u32 version,
+int rpcb_v4_register(struct net *net, const u32 program, const u32 version,
const struct sockaddr *address, const char *netid)
{
struct rpcbind_args map = {
@@ -566,18 +574,19 @@ int rpcb_v4_register(const u32 program, const u32 version,
struct rpc_message msg = {
.rpc_argp = &map,
};
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
- if (rpcb_local_clnt4 == NULL)
+ if (sn->rpcb_local_clnt4 == NULL)
return -EPROTONOSUPPORT;
if (address == NULL)
- return rpcb_unregister_all_protofamilies(&msg);
+ return rpcb_unregister_all_protofamilies(sn, &msg);
switch (address->sa_family) {
case AF_INET:
- return rpcb_register_inet4(address, &msg);
+ return rpcb_register_inet4(sn, address, &msg);
case AF_INET6:
- return rpcb_register_inet6(address, &msg);
+ return rpcb_register_inet6(sn, address, &msg);
}
return -EAFNOSUPPORT;
@@ -611,9 +620,10 @@ static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbi
static struct rpc_clnt *rpcb_find_transport_owner(struct rpc_clnt *clnt)
{
struct rpc_clnt *parent = clnt->cl_parent;
+ struct rpc_xprt *xprt = rcu_dereference(clnt->cl_xprt);
while (parent != clnt) {
- if (parent->cl_xprt != clnt->cl_xprt)
+ if (rcu_dereference(parent->cl_xprt) != xprt)
break;
if (clnt->cl_autobind)
break;
@@ -644,12 +654,16 @@ void rpcb_getport_async(struct rpc_task *task)
size_t salen;
int status;
- clnt = rpcb_find_transport_owner(task->tk_client);
- xprt = clnt->cl_xprt;
+ rcu_read_lock();
+ do {
+ clnt = rpcb_find_transport_owner(task->tk_client);
+ xprt = xprt_get(rcu_dereference(clnt->cl_xprt));
+ } while (xprt == NULL);
+ rcu_read_unlock();
dprintk("RPC: %5u %s(%s, %u, %u, %d)\n",
task->tk_pid, __func__,
- clnt->cl_server, clnt->cl_prog, clnt->cl_vers, xprt->prot);
+ xprt->servername, clnt->cl_prog, clnt->cl_vers, xprt->prot);
/* Put self on the wait queue to ensure we get notified if
* some other task is already attempting to bind the port */
@@ -658,6 +672,7 @@ void rpcb_getport_async(struct rpc_task *task)
if (xprt_test_and_set_binding(xprt)) {
dprintk("RPC: %5u %s: waiting for another binder\n",
task->tk_pid, __func__);
+ xprt_put(xprt);
return;
}
@@ -699,8 +714,8 @@ void rpcb_getport_async(struct rpc_task *task)
dprintk("RPC: %5u %s: trying rpcbind version %u\n",
task->tk_pid, __func__, bind_version);
- rpcb_clnt = rpcb_create(clnt->cl_server, sap, salen, xprt->prot,
- bind_version);
+ rpcb_clnt = rpcb_create(xprt->xprt_net, xprt->servername, sap, salen,
+ xprt->prot, bind_version);
if (IS_ERR(rpcb_clnt)) {
status = PTR_ERR(rpcb_clnt);
dprintk("RPC: %5u %s: rpcb_create failed, error %ld\n",
@@ -725,7 +740,7 @@ void rpcb_getport_async(struct rpc_task *task)
switch (bind_version) {
case RPCBVERS_4:
case RPCBVERS_3:
- map->r_netid = rpc_peeraddr2str(clnt, RPC_DISPLAY_NETID);
+ map->r_netid = xprt->address_strings[RPC_DISPLAY_NETID];
map->r_addr = rpc_sockaddr2uaddr(sap, GFP_ATOMIC);
map->r_owner = "";
break;
@@ -754,6 +769,7 @@ bailout_release_client:
bailout_nofree:
rpcb_wake_rpcbind_waiters(xprt, status);
task->tk_status = status;
+ xprt_put(xprt);
}
EXPORT_SYMBOL_GPL(rpcb_getport_async);
@@ -801,11 +817,11 @@ static void rpcb_getport_done(struct rpc_task *child, void *data)
static void rpcb_enc_mapping(struct rpc_rqst *req, struct xdr_stream *xdr,
const struct rpcbind_args *rpcb)
{
- struct rpc_task *task = req->rq_task;
__be32 *p;
dprintk("RPC: %5u encoding PMAP_%s call (%u, %u, %d, %u)\n",
- task->tk_pid, task->tk_msg.rpc_proc->p_name,
+ req->rq_task->tk_pid,
+ req->rq_task->tk_msg.rpc_proc->p_name,
rpcb->r_prog, rpcb->r_vers, rpcb->r_prot, rpcb->r_port);
p = xdr_reserve_space(xdr, RPCB_mappingargs_sz << 2);
@@ -818,7 +834,6 @@ static void rpcb_enc_mapping(struct rpc_rqst *req, struct xdr_stream *xdr,
static int rpcb_dec_getport(struct rpc_rqst *req, struct xdr_stream *xdr,
struct rpcbind_args *rpcb)
{
- struct rpc_task *task = req->rq_task;
unsigned long port;
__be32 *p;
@@ -829,8 +844,8 @@ static int rpcb_dec_getport(struct rpc_rqst *req, struct xdr_stream *xdr,
return -EIO;
port = be32_to_cpup(p);
- dprintk("RPC: %5u PMAP_%s result: %lu\n", task->tk_pid,
- task->tk_msg.rpc_proc->p_name, port);
+ dprintk("RPC: %5u PMAP_%s result: %lu\n", req->rq_task->tk_pid,
+ req->rq_task->tk_msg.rpc_proc->p_name, port);
if (unlikely(port > USHRT_MAX))
return -EIO;
@@ -841,7 +856,6 @@ static int rpcb_dec_getport(struct rpc_rqst *req, struct xdr_stream *xdr,
static int rpcb_dec_set(struct rpc_rqst *req, struct xdr_stream *xdr,
unsigned int *boolp)
{
- struct rpc_task *task = req->rq_task;
__be32 *p;
p = xdr_inline_decode(xdr, 4);
@@ -853,7 +867,8 @@ static int rpcb_dec_set(struct rpc_rqst *req, struct xdr_stream *xdr,
*boolp = 1;
dprintk("RPC: %5u RPCB_%s call %s\n",
- task->tk_pid, task->tk_msg.rpc_proc->p_name,
+ req->rq_task->tk_pid,
+ req->rq_task->tk_msg.rpc_proc->p_name,
(*boolp ? "succeeded" : "failed"));
return 0;
}
@@ -873,11 +888,11 @@ static void encode_rpcb_string(struct xdr_stream *xdr, const char *string,
static void rpcb_enc_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
const struct rpcbind_args *rpcb)
{
- struct rpc_task *task = req->rq_task;
__be32 *p;
dprintk("RPC: %5u encoding RPCB_%s call (%u, %u, '%s', '%s')\n",
- task->tk_pid, task->tk_msg.rpc_proc->p_name,
+ req->rq_task->tk_pid,
+ req->rq_task->tk_msg.rpc_proc->p_name,
rpcb->r_prog, rpcb->r_vers,
rpcb->r_netid, rpcb->r_addr);
@@ -895,7 +910,6 @@ static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
{
struct sockaddr_storage address;
struct sockaddr *sap = (struct sockaddr *)&address;
- struct rpc_task *task = req->rq_task;
__be32 *p;
u32 len;
@@ -912,7 +926,7 @@ static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
*/
if (len == 0) {
dprintk("RPC: %5u RPCB reply: program not registered\n",
- task->tk_pid);
+ req->rq_task->tk_pid);
return 0;
}
@@ -922,10 +936,11 @@ static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
p = xdr_inline_decode(xdr, len);
if (unlikely(p == NULL))
goto out_fail;
- dprintk("RPC: %5u RPCB_%s reply: %s\n", task->tk_pid,
- task->tk_msg.rpc_proc->p_name, (char *)p);
+ dprintk("RPC: %5u RPCB_%s reply: %s\n", req->rq_task->tk_pid,
+ req->rq_task->tk_msg.rpc_proc->p_name, (char *)p);
- if (rpc_uaddr2sockaddr((char *)p, len, sap, sizeof(address)) == 0)
+ if (rpc_uaddr2sockaddr(req->rq_xprt->xprt_net, (char *)p, len,
+ sap, sizeof(address)) == 0)
goto out_fail;
rpcb->r_port = rpc_get_port(sap);
@@ -933,7 +948,8 @@ static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
out_fail:
dprintk("RPC: %5u malformed RPCB_%s reply\n",
- task->tk_pid, task->tk_msg.rpc_proc->p_name);
+ req->rq_task->tk_pid,
+ req->rq_task->tk_msg.rpc_proc->p_name);
return -EIO;
}
@@ -1041,7 +1057,7 @@ static struct rpc_procinfo rpcb_procedures4[] = {
},
};
-static struct rpcb_info rpcb_next_version[] = {
+static const struct rpcb_info rpcb_next_version[] = {
{
.rpc_vers = RPCBVERS_2,
.rpc_proc = &rpcb_procedures2[RPCBPROC_GETPORT],
@@ -1051,7 +1067,7 @@ static struct rpcb_info rpcb_next_version[] = {
},
};
-static struct rpcb_info rpcb_next_version6[] = {
+static const struct rpcb_info rpcb_next_version6[] = {
{
.rpc_vers = RPCBVERS_4,
.rpc_proc = &rpcb_procedures4[RPCBPROC_GETADDR],
@@ -1065,25 +1081,25 @@ static struct rpcb_info rpcb_next_version6[] = {
},
};
-static struct rpc_version rpcb_version2 = {
+static const struct rpc_version rpcb_version2 = {
.number = RPCBVERS_2,
.nrprocs = ARRAY_SIZE(rpcb_procedures2),
.procs = rpcb_procedures2
};
-static struct rpc_version rpcb_version3 = {
+static const struct rpc_version rpcb_version3 = {
.number = RPCBVERS_3,
.nrprocs = ARRAY_SIZE(rpcb_procedures3),
.procs = rpcb_procedures3
};
-static struct rpc_version rpcb_version4 = {
+static const struct rpc_version rpcb_version4 = {
.number = RPCBVERS_4,
.nrprocs = ARRAY_SIZE(rpcb_procedures4),
.procs = rpcb_procedures4
};
-static struct rpc_version *rpcb_version[] = {
+static const struct rpc_version *rpcb_version[] = {
NULL,
NULL,
&rpcb_version2,
@@ -1093,7 +1109,7 @@ static struct rpc_version *rpcb_version[] = {
static struct rpc_stat rpcb_stats;
-static struct rpc_program rpcb_program = {
+static const struct rpc_program rpcb_program = {
.name = "rpcbind",
.number = RPCBIND_PROGRAM,
.nrvers = ARRAY_SIZE(rpcb_version),
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 3341d8962786..994cfea2bad6 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -28,6 +28,9 @@
#define RPCDBG_FACILITY RPCDBG_SCHED
#endif
+#define CREATE_TRACE_POINTS
+#include <trace/events/sunrpc.h>
+
/*
* RPC slabs and memory pools
*/
@@ -205,9 +208,7 @@ static void __rpc_init_priority_wait_queue(struct rpc_wait_queue *queue, const c
queue->qlen = 0;
setup_timer(&queue->timer_list.timer, __rpc_queue_timer_fn, (unsigned long)queue);
INIT_LIST_HEAD(&queue->timer_list.list);
-#ifdef RPC_DEBUG
- queue->name = qname;
-#endif
+ rpc_assign_waitqueue_name(queue, qname);
}
void rpc_init_priority_wait_queue(struct rpc_wait_queue *queue, const char *qname)
@@ -251,6 +252,8 @@ static inline void rpc_task_set_debuginfo(struct rpc_task *task)
static void rpc_set_active(struct rpc_task *task)
{
+ trace_rpc_task_begin(task->tk_client, task, NULL);
+
rpc_task_set_debuginfo(task);
set_bit(RPC_TASK_ACTIVE, &task->tk_runstate);
}
@@ -267,6 +270,8 @@ static int rpc_complete_task(struct rpc_task *task)
unsigned long flags;
int ret;
+ trace_rpc_task_complete(task->tk_client, task, NULL);
+
spin_lock_irqsave(&wq->lock, flags);
clear_bit(RPC_TASK_ACTIVE, &task->tk_runstate);
ret = atomic_dec_and_test(&task->tk_count);
@@ -324,6 +329,8 @@ static void __rpc_sleep_on_priority(struct rpc_wait_queue *q,
dprintk("RPC: %5u sleep_on(queue \"%s\" time %lu)\n",
task->tk_pid, rpc_qname(q), jiffies);
+ trace_rpc_task_sleep(task->tk_client, task, q);
+
__rpc_add_wait_queue(q, task, queue_priority);
BUG_ON(task->tk_callback != NULL);
@@ -378,6 +385,8 @@ static void __rpc_do_wake_up_task(struct rpc_wait_queue *queue, struct rpc_task
return;
}
+ trace_rpc_task_wakeup(task->tk_client, task, queue);
+
__rpc_remove_wait_queue(queue, task);
rpc_make_runnable(task);
@@ -422,7 +431,7 @@ EXPORT_SYMBOL_GPL(rpc_wake_up_queued_task);
/*
* Wake up the next task on a priority queue.
*/
-static struct rpc_task * __rpc_wake_up_next_priority(struct rpc_wait_queue *queue)
+static struct rpc_task *__rpc_find_next_queued_priority(struct rpc_wait_queue *queue)
{
struct list_head *q;
struct rpc_task *task;
@@ -467,30 +476,54 @@ new_queue:
new_owner:
rpc_set_waitqueue_owner(queue, task->tk_owner);
out:
- rpc_wake_up_task_queue_locked(queue, task);
return task;
}
+static struct rpc_task *__rpc_find_next_queued(struct rpc_wait_queue *queue)
+{
+ if (RPC_IS_PRIORITY(queue))
+ return __rpc_find_next_queued_priority(queue);
+ if (!list_empty(&queue->tasks[0]))
+ return list_first_entry(&queue->tasks[0], struct rpc_task, u.tk_wait.list);
+ return NULL;
+}
+
/*
- * Wake up the next task on the wait queue.
+ * Wake up the first task on the wait queue.
*/
-struct rpc_task * rpc_wake_up_next(struct rpc_wait_queue *queue)
+struct rpc_task *rpc_wake_up_first(struct rpc_wait_queue *queue,
+ bool (*func)(struct rpc_task *, void *), void *data)
{
struct rpc_task *task = NULL;
- dprintk("RPC: wake_up_next(%p \"%s\")\n",
+ dprintk("RPC: wake_up_first(%p \"%s\")\n",
queue, rpc_qname(queue));
spin_lock_bh(&queue->lock);
- if (RPC_IS_PRIORITY(queue))
- task = __rpc_wake_up_next_priority(queue);
- else {
- task_for_first(task, &queue->tasks[0])
+ task = __rpc_find_next_queued(queue);
+ if (task != NULL) {
+ if (func(task, data))
rpc_wake_up_task_queue_locked(queue, task);
+ else
+ task = NULL;
}
spin_unlock_bh(&queue->lock);
return task;
}
+EXPORT_SYMBOL_GPL(rpc_wake_up_first);
+
+static bool rpc_wake_up_next_func(struct rpc_task *task, void *data)
+{
+ return true;
+}
+
+/*
+ * Wake up the next task on the wait queue.
+*/
+struct rpc_task *rpc_wake_up_next(struct rpc_wait_queue *queue)
+{
+ return rpc_wake_up_first(queue, rpc_wake_up_next_func, NULL);
+}
EXPORT_SYMBOL_GPL(rpc_wake_up_next);
/**
@@ -501,14 +534,18 @@ EXPORT_SYMBOL_GPL(rpc_wake_up_next);
*/
void rpc_wake_up(struct rpc_wait_queue *queue)
{
- struct rpc_task *task, *next;
struct list_head *head;
spin_lock_bh(&queue->lock);
head = &queue->tasks[queue->maxpriority];
for (;;) {
- list_for_each_entry_safe(task, next, head, u.tk_wait.list)
+ while (!list_empty(head)) {
+ struct rpc_task *task;
+ task = list_first_entry(head,
+ struct rpc_task,
+ u.tk_wait.list);
rpc_wake_up_task_queue_locked(queue, task);
+ }
if (head == &queue->tasks[0])
break;
head--;
@@ -526,13 +563,16 @@ EXPORT_SYMBOL_GPL(rpc_wake_up);
*/
void rpc_wake_up_status(struct rpc_wait_queue *queue, int status)
{
- struct rpc_task *task, *next;
struct list_head *head;
spin_lock_bh(&queue->lock);
head = &queue->tasks[queue->maxpriority];
for (;;) {
- list_for_each_entry_safe(task, next, head, u.tk_wait.list) {
+ while (!list_empty(head)) {
+ struct rpc_task *task;
+ task = list_first_entry(head,
+ struct rpc_task,
+ u.tk_wait.list);
task->tk_status = status;
rpc_wake_up_task_queue_locked(queue, task);
}
@@ -677,6 +717,7 @@ static void __rpc_execute(struct rpc_task *task)
if (do_action == NULL)
break;
}
+ trace_rpc_task_run_action(task->tk_client, task, task->tk_action);
do_action(task);
/*
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index 80df89d957ba..bc2068ee795b 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -22,6 +22,7 @@
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/sunrpc/metrics.h>
+#include <linux/rcupdate.h>
#include "netns.h"
@@ -133,20 +134,19 @@ EXPORT_SYMBOL_GPL(rpc_free_iostats);
/**
* rpc_count_iostats - tally up per-task stats
* @task: completed rpc_task
+ * @stats: array of stat structures
*
* Relies on the caller for serialization.
*/
-void rpc_count_iostats(struct rpc_task *task)
+void rpc_count_iostats(const struct rpc_task *task, struct rpc_iostats *stats)
{
struct rpc_rqst *req = task->tk_rqstp;
- struct rpc_iostats *stats;
struct rpc_iostats *op_metrics;
ktime_t delta;
- if (!task->tk_client || !task->tk_client->cl_metrics || !req)
+ if (!stats || !req)
return;
- stats = task->tk_client->cl_metrics;
op_metrics = &stats[task->tk_msg.rpc_proc->p_statidx];
op_metrics->om_ops++;
@@ -164,6 +164,7 @@ void rpc_count_iostats(struct rpc_task *task)
delta = ktime_sub(ktime_get(), task->tk_start);
op_metrics->om_execute = ktime_add(op_metrics->om_execute, delta);
}
+EXPORT_SYMBOL_GPL(rpc_count_iostats);
static void _print_name(struct seq_file *seq, unsigned int op,
struct rpc_procinfo *procs)
@@ -179,7 +180,7 @@ static void _print_name(struct seq_file *seq, unsigned int op,
void rpc_print_iostats(struct seq_file *seq, struct rpc_clnt *clnt)
{
struct rpc_iostats *stats = clnt->cl_metrics;
- struct rpc_xprt *xprt = clnt->cl_xprt;
+ struct rpc_xprt *xprt;
unsigned int op, maxproc = clnt->cl_maxproc;
if (!stats)
@@ -189,8 +190,11 @@ void rpc_print_iostats(struct seq_file *seq, struct rpc_clnt *clnt)
seq_printf(seq, "p/v: %u/%u (%s)\n",
clnt->cl_prog, clnt->cl_vers, clnt->cl_protname);
+ rcu_read_lock();
+ xprt = rcu_dereference(clnt->cl_xprt);
if (xprt)
xprt->ops->print_stats(xprt, seq);
+ rcu_read_unlock();
seq_printf(seq, "\tper-op statistics\n");
for (op = 0; op < maxproc; op++) {
@@ -213,45 +217,46 @@ EXPORT_SYMBOL_GPL(rpc_print_iostats);
* Register/unregister RPC proc files
*/
static inline struct proc_dir_entry *
-do_register(const char *name, void *data, const struct file_operations *fops)
+do_register(struct net *net, const char *name, void *data,
+ const struct file_operations *fops)
{
struct sunrpc_net *sn;
dprintk("RPC: registering /proc/net/rpc/%s\n", name);
- sn = net_generic(&init_net, sunrpc_net_id);
+ sn = net_generic(net, sunrpc_net_id);
return proc_create_data(name, 0, sn->proc_net_rpc, fops, data);
}
struct proc_dir_entry *
-rpc_proc_register(struct rpc_stat *statp)
+rpc_proc_register(struct net *net, struct rpc_stat *statp)
{
- return do_register(statp->program->name, statp, &rpc_proc_fops);
+ return do_register(net, statp->program->name, statp, &rpc_proc_fops);
}
EXPORT_SYMBOL_GPL(rpc_proc_register);
void
-rpc_proc_unregister(const char *name)
+rpc_proc_unregister(struct net *net, const char *name)
{
struct sunrpc_net *sn;
- sn = net_generic(&init_net, sunrpc_net_id);
+ sn = net_generic(net, sunrpc_net_id);
remove_proc_entry(name, sn->proc_net_rpc);
}
EXPORT_SYMBOL_GPL(rpc_proc_unregister);
struct proc_dir_entry *
-svc_proc_register(struct svc_stat *statp, const struct file_operations *fops)
+svc_proc_register(struct net *net, struct svc_stat *statp, const struct file_operations *fops)
{
- return do_register(statp->program->pg_name, statp, fops);
+ return do_register(net, statp->program->pg_name, statp, fops);
}
EXPORT_SYMBOL_GPL(svc_proc_register);
void
-svc_proc_unregister(const char *name)
+svc_proc_unregister(struct net *net, const char *name)
{
struct sunrpc_net *sn;
- sn = net_generic(&init_net, sunrpc_net_id);
+ sn = net_generic(net, sunrpc_net_id);
remove_proc_entry(name, sn->proc_net_rpc);
}
EXPORT_SYMBOL_GPL(svc_proc_unregister);
diff --git a/net/sunrpc/sunrpc.h b/net/sunrpc/sunrpc.h
index 90c292e2738b..14c9f6d1c5ff 100644
--- a/net/sunrpc/sunrpc.h
+++ b/net/sunrpc/sunrpc.h
@@ -47,5 +47,7 @@ int svc_send_common(struct socket *sock, struct xdr_buf *xdr,
struct page *headpage, unsigned long headoffset,
struct page *tailpage, unsigned long tailoffset);
+int rpc_clients_notifier_register(void);
+void rpc_clients_notifier_unregister(void);
#endif /* _NET_SUNRPC_SUNRPC_H */
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index 8ec9778c3f4a..8adfc88e793a 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -25,10 +25,12 @@
#include "netns.h"
int sunrpc_net_id;
+EXPORT_SYMBOL_GPL(sunrpc_net_id);
static __net_init int sunrpc_init_net(struct net *net)
{
int err;
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
err = rpc_proc_init(net);
if (err)
@@ -38,8 +40,18 @@ static __net_init int sunrpc_init_net(struct net *net)
if (err)
goto err_ipmap;
+ err = unix_gid_cache_create(net);
+ if (err)
+ goto err_unixgid;
+
+ rpc_pipefs_init_net(net);
+ INIT_LIST_HEAD(&sn->all_clients);
+ spin_lock_init(&sn->rpc_client_lock);
+ spin_lock_init(&sn->rpcb_clnt_lock);
return 0;
+err_unixgid:
+ ip_map_cache_destroy(net);
err_ipmap:
rpc_proc_exit(net);
err_proc:
@@ -48,6 +60,7 @@ err_proc:
static __net_exit void sunrpc_exit_net(struct net *net)
{
+ unix_gid_cache_destroy(net);
ip_map_cache_destroy(net);
rpc_proc_exit(net);
}
@@ -59,8 +72,6 @@ static struct pernet_operations sunrpc_net_ops = {
.size = sizeof(struct sunrpc_net),
};
-extern struct cache_detail unix_gid_cache;
-
static int __init
init_sunrpc(void)
{
@@ -82,7 +93,6 @@ init_sunrpc(void)
#ifdef RPC_DEBUG
rpc_register_sysctl();
#endif
- cache_register(&unix_gid_cache);
svc_init_xprt_sock(); /* svc sock transport */
init_socket_xprt(); /* clnt sock transport */
return 0;
@@ -105,7 +115,6 @@ cleanup_sunrpc(void)
svc_cleanup_xprt_sock();
unregister_rpc_pipefs();
rpc_destroy_mempool();
- cache_unregister(&unix_gid_cache);
unregister_pernet_subsys(&sunrpc_net_ops);
#ifdef RPC_DEBUG
rpc_unregister_sysctl();
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index e4aabc02368b..4153846984ac 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -20,6 +20,7 @@
#include <linux/module.h>
#include <linux/kthread.h>
#include <linux/slab.h>
+#include <linux/nsproxy.h>
#include <linux/sunrpc/types.h>
#include <linux/sunrpc/xdr.h>
@@ -30,7 +31,7 @@
#define RPCDBG_FACILITY RPCDBG_SVCDSP
-static void svc_unregister(const struct svc_serv *serv);
+static void svc_unregister(const struct svc_serv *serv, struct net *net);
#define svc_serv_is_pooled(serv) ((serv)->sv_function)
@@ -368,23 +369,24 @@ svc_pool_for_cpu(struct svc_serv *serv, int cpu)
return &serv->sv_pools[pidx % serv->sv_nrpools];
}
-static int svc_rpcb_setup(struct svc_serv *serv)
+int svc_rpcb_setup(struct svc_serv *serv, struct net *net)
{
int err;
- err = rpcb_create_local();
+ err = rpcb_create_local(net);
if (err)
return err;
/* Remove any stale portmap registrations */
- svc_unregister(serv);
+ svc_unregister(serv, net);
return 0;
}
+EXPORT_SYMBOL_GPL(svc_rpcb_setup);
-void svc_rpcb_cleanup(struct svc_serv *serv)
+void svc_rpcb_cleanup(struct svc_serv *serv, struct net *net)
{
- svc_unregister(serv);
- rpcb_put_local();
+ svc_unregister(serv, net);
+ rpcb_put_local(net);
}
EXPORT_SYMBOL_GPL(svc_rpcb_cleanup);
@@ -410,7 +412,7 @@ static int svc_uses_rpcbind(struct svc_serv *serv)
*/
static struct svc_serv *
__svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
- void (*shutdown)(struct svc_serv *serv))
+ void (*shutdown)(struct svc_serv *serv, struct net *net))
{
struct svc_serv *serv;
unsigned int vers;
@@ -470,7 +472,7 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
}
if (svc_uses_rpcbind(serv)) {
- if (svc_rpcb_setup(serv) < 0) {
+ if (svc_rpcb_setup(serv, current->nsproxy->net_ns) < 0) {
kfree(serv->sv_pools);
kfree(serv);
return NULL;
@@ -484,7 +486,7 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
struct svc_serv *
svc_create(struct svc_program *prog, unsigned int bufsize,
- void (*shutdown)(struct svc_serv *serv))
+ void (*shutdown)(struct svc_serv *serv, struct net *net))
{
return __svc_create(prog, bufsize, /*npools*/1, shutdown);
}
@@ -492,7 +494,7 @@ EXPORT_SYMBOL_GPL(svc_create);
struct svc_serv *
svc_create_pooled(struct svc_program *prog, unsigned int bufsize,
- void (*shutdown)(struct svc_serv *serv),
+ void (*shutdown)(struct svc_serv *serv, struct net *net),
svc_thread_fn func, struct module *mod)
{
struct svc_serv *serv;
@@ -509,6 +511,24 @@ svc_create_pooled(struct svc_program *prog, unsigned int bufsize,
}
EXPORT_SYMBOL_GPL(svc_create_pooled);
+void svc_shutdown_net(struct svc_serv *serv, struct net *net)
+{
+ /*
+ * The set of xprts (contained in the sv_tempsocks and
+ * sv_permsocks lists) is now constant, since it is modified
+ * only by accepting new sockets (done by service threads in
+ * svc_recv) or aging old ones (done by sv_temptimer), or
+ * configuration changes (excluded by whatever locking the
+ * caller is using--nfsd_mutex in the case of nfsd). So it's
+ * safe to traverse those lists and shut everything down:
+ */
+ svc_close_net(serv, net);
+
+ if (serv->sv_shutdown)
+ serv->sv_shutdown(serv, net);
+}
+EXPORT_SYMBOL_GPL(svc_shutdown_net);
+
/*
* Destroy an RPC service. Should be called with appropriate locking to
* protect the sv_nrthreads, sv_permsocks and sv_tempsocks.
@@ -516,6 +536,8 @@ EXPORT_SYMBOL_GPL(svc_create_pooled);
void
svc_destroy(struct svc_serv *serv)
{
+ struct net *net = current->nsproxy->net_ns;
+
dprintk("svc: svc_destroy(%s, %d)\n",
serv->sv_program->pg_name,
serv->sv_nrthreads);
@@ -529,19 +551,15 @@ svc_destroy(struct svc_serv *serv)
printk("svc_destroy: no threads for serv=%p!\n", serv);
del_timer_sync(&serv->sv_temptimer);
+
+ svc_shutdown_net(serv, net);
+
/*
- * The set of xprts (contained in the sv_tempsocks and
- * sv_permsocks lists) is now constant, since it is modified
- * only by accepting new sockets (done by service threads in
- * svc_recv) or aging old ones (done by sv_temptimer), or
- * configuration changes (excluded by whatever locking the
- * caller is using--nfsd_mutex in the case of nfsd). So it's
- * safe to traverse those lists and shut everything down:
+ * The last user is gone and thus all sockets have to be destroyed to
+ * the point. Check this.
*/
- svc_close_all(serv);
-
- if (serv->sv_shutdown)
- serv->sv_shutdown(serv);
+ BUG_ON(!list_empty(&serv->sv_permsocks));
+ BUG_ON(!list_empty(&serv->sv_tempsocks));
cache_clean_deferred(serv);
@@ -795,7 +813,8 @@ EXPORT_SYMBOL_GPL(svc_exit_thread);
* Returns zero on success; a negative errno value is returned
* if any error occurs.
*/
-static int __svc_rpcb_register4(const u32 program, const u32 version,
+static int __svc_rpcb_register4(struct net *net, const u32 program,
+ const u32 version,
const unsigned short protocol,
const unsigned short port)
{
@@ -818,7 +837,7 @@ static int __svc_rpcb_register4(const u32 program, const u32 version,
return -ENOPROTOOPT;
}
- error = rpcb_v4_register(program, version,
+ error = rpcb_v4_register(net, program, version,
(const struct sockaddr *)&sin, netid);
/*
@@ -826,7 +845,7 @@ static int __svc_rpcb_register4(const u32 program, const u32 version,
* registration request with the legacy rpcbind v2 protocol.
*/
if (error == -EPROTONOSUPPORT)
- error = rpcb_register(program, version, protocol, port);
+ error = rpcb_register(net, program, version, protocol, port);
return error;
}
@@ -842,7 +861,8 @@ static int __svc_rpcb_register4(const u32 program, const u32 version,
* Returns zero on success; a negative errno value is returned
* if any error occurs.
*/
-static int __svc_rpcb_register6(const u32 program, const u32 version,
+static int __svc_rpcb_register6(struct net *net, const u32 program,
+ const u32 version,
const unsigned short protocol,
const unsigned short port)
{
@@ -865,7 +885,7 @@ static int __svc_rpcb_register6(const u32 program, const u32 version,
return -ENOPROTOOPT;
}
- error = rpcb_v4_register(program, version,
+ error = rpcb_v4_register(net, program, version,
(const struct sockaddr *)&sin6, netid);
/*
@@ -885,7 +905,7 @@ static int __svc_rpcb_register6(const u32 program, const u32 version,
* Returns zero on success; a negative errno value is returned
* if any error occurs.
*/
-static int __svc_register(const char *progname,
+static int __svc_register(struct net *net, const char *progname,
const u32 program, const u32 version,
const int family,
const unsigned short protocol,
@@ -895,12 +915,12 @@ static int __svc_register(const char *progname,
switch (family) {
case PF_INET:
- error = __svc_rpcb_register4(program, version,
+ error = __svc_rpcb_register4(net, program, version,
protocol, port);
break;
#if IS_ENABLED(CONFIG_IPV6)
case PF_INET6:
- error = __svc_rpcb_register6(program, version,
+ error = __svc_rpcb_register6(net, program, version,
protocol, port);
#endif
}
@@ -914,14 +934,16 @@ static int __svc_register(const char *progname,
/**
* svc_register - register an RPC service with the local portmapper
* @serv: svc_serv struct for the service to register
+ * @net: net namespace for the service to register
* @family: protocol family of service's listener socket
* @proto: transport protocol number to advertise
* @port: port to advertise
*
* Service is registered for any address in the passed-in protocol family
*/
-int svc_register(const struct svc_serv *serv, const int family,
- const unsigned short proto, const unsigned short port)
+int svc_register(const struct svc_serv *serv, struct net *net,
+ const int family, const unsigned short proto,
+ const unsigned short port)
{
struct svc_program *progp;
unsigned int i;
@@ -946,7 +968,7 @@ int svc_register(const struct svc_serv *serv, const int family,
if (progp->pg_vers[i]->vs_hidden)
continue;
- error = __svc_register(progp->pg_name, progp->pg_prog,
+ error = __svc_register(net, progp->pg_name, progp->pg_prog,
i, family, proto, port);
if (error < 0)
break;
@@ -963,19 +985,19 @@ int svc_register(const struct svc_serv *serv, const int family,
* any "inet6" entries anyway. So a PMAP_UNSET should be sufficient
* in this case to clear all existing entries for [program, version].
*/
-static void __svc_unregister(const u32 program, const u32 version,
+static void __svc_unregister(struct net *net, const u32 program, const u32 version,
const char *progname)
{
int error;
- error = rpcb_v4_register(program, version, NULL, "");
+ error = rpcb_v4_register(net, program, version, NULL, "");
/*
* User space didn't support rpcbind v4, so retry this
* request with the legacy rpcbind v2 protocol.
*/
if (error == -EPROTONOSUPPORT)
- error = rpcb_register(program, version, 0, 0);
+ error = rpcb_register(net, program, version, 0, 0);
dprintk("svc: %s(%sv%u), error %d\n",
__func__, progname, version, error);
@@ -989,7 +1011,7 @@ static void __svc_unregister(const u32 program, const u32 version,
* The result of unregistration is reported via dprintk for those who want
* verification of the result, but is otherwise not important.
*/
-static void svc_unregister(const struct svc_serv *serv)
+static void svc_unregister(const struct svc_serv *serv, struct net *net)
{
struct svc_program *progp;
unsigned long flags;
@@ -1006,7 +1028,7 @@ static void svc_unregister(const struct svc_serv *serv)
dprintk("svc: attempting to unregister %sv%u\n",
progp->pg_name, i);
- __svc_unregister(progp->pg_prog, i, progp->pg_name);
+ __svc_unregister(net, progp->pg_prog, i, progp->pg_name);
}
}
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index 74cb0d8e9ca1..4bda09d7e1a4 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -922,48 +922,65 @@ void svc_close_xprt(struct svc_xprt *xprt)
}
EXPORT_SYMBOL_GPL(svc_close_xprt);
-static void svc_close_list(struct list_head *xprt_list)
+static void svc_close_list(struct list_head *xprt_list, struct net *net)
{
struct svc_xprt *xprt;
list_for_each_entry(xprt, xprt_list, xpt_list) {
+ if (xprt->xpt_net != net)
+ continue;
set_bit(XPT_CLOSE, &xprt->xpt_flags);
set_bit(XPT_BUSY, &xprt->xpt_flags);
}
}
-void svc_close_all(struct svc_serv *serv)
+static void svc_clear_pools(struct svc_serv *serv, struct net *net)
{
struct svc_pool *pool;
struct svc_xprt *xprt;
struct svc_xprt *tmp;
int i;
- svc_close_list(&serv->sv_tempsocks);
- svc_close_list(&serv->sv_permsocks);
-
for (i = 0; i < serv->sv_nrpools; i++) {
pool = &serv->sv_pools[i];
spin_lock_bh(&pool->sp_lock);
- while (!list_empty(&pool->sp_sockets)) {
- xprt = list_first_entry(&pool->sp_sockets, struct svc_xprt, xpt_ready);
+ list_for_each_entry_safe(xprt, tmp, &pool->sp_sockets, xpt_ready) {
+ if (xprt->xpt_net != net)
+ continue;
list_del_init(&xprt->xpt_ready);
}
spin_unlock_bh(&pool->sp_lock);
}
+}
+
+static void svc_clear_list(struct list_head *xprt_list, struct net *net)
+{
+ struct svc_xprt *xprt;
+ struct svc_xprt *tmp;
+
+ list_for_each_entry_safe(xprt, tmp, xprt_list, xpt_list) {
+ if (xprt->xpt_net != net)
+ continue;
+ svc_delete_xprt(xprt);
+ }
+ list_for_each_entry(xprt, xprt_list, xpt_list)
+ BUG_ON(xprt->xpt_net == net);
+}
+
+void svc_close_net(struct svc_serv *serv, struct net *net)
+{
+ svc_close_list(&serv->sv_tempsocks, net);
+ svc_close_list(&serv->sv_permsocks, net);
+
+ svc_clear_pools(serv, net);
/*
* At this point the sp_sockets lists will stay empty, since
* svc_enqueue will not add new entries without taking the
* sp_lock and checking XPT_BUSY.
*/
- list_for_each_entry_safe(xprt, tmp, &serv->sv_tempsocks, xpt_list)
- svc_delete_xprt(xprt);
- list_for_each_entry_safe(xprt, tmp, &serv->sv_permsocks, xpt_list)
- svc_delete_xprt(xprt);
-
- BUG_ON(!list_empty(&serv->sv_permsocks));
- BUG_ON(!list_empty(&serv->sv_tempsocks));
+ svc_clear_list(&serv->sv_tempsocks, net);
+ svc_clear_list(&serv->sv_permsocks, net);
}
/*
@@ -1089,6 +1106,7 @@ static struct svc_deferred_req *svc_deferred_dequeue(struct svc_xprt *xprt)
* svc_find_xprt - find an RPC transport instance
* @serv: pointer to svc_serv to search
* @xcl_name: C string containing transport's class name
+ * @net: owner net pointer
* @af: Address family of transport's local address
* @port: transport's IP port number
*
@@ -1101,7 +1119,8 @@ static struct svc_deferred_req *svc_deferred_dequeue(struct svc_xprt *xprt)
* service's list that has a matching class name.
*/
struct svc_xprt *svc_find_xprt(struct svc_serv *serv, const char *xcl_name,
- const sa_family_t af, const unsigned short port)
+ struct net *net, const sa_family_t af,
+ const unsigned short port)
{
struct svc_xprt *xprt;
struct svc_xprt *found = NULL;
@@ -1112,6 +1131,8 @@ struct svc_xprt *svc_find_xprt(struct svc_serv *serv, const char *xcl_name,
spin_lock_bh(&serv->sv_lock);
list_for_each_entry(xprt, &serv->sv_permsocks, xpt_list) {
+ if (xprt->xpt_net != net)
+ continue;
if (strcmp(xprt->xpt_class->xcl_name, xcl_name))
continue;
if (af != AF_UNSPEC && af != xprt->xpt_local.ss_family)
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 01153ead1dba..bcd574f2ac56 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -211,7 +211,7 @@ static int ip_map_parse(struct cache_detail *cd,
len = qword_get(&mesg, buf, mlen);
if (len <= 0) return -EINVAL;
- if (rpc_pton(buf, len, &address.sa, sizeof(address)) == 0)
+ if (rpc_pton(cd->net, buf, len, &address.sa, sizeof(address)) == 0)
return -EINVAL;
switch (address.sa.sa_family) {
case AF_INET:
@@ -436,7 +436,6 @@ struct unix_gid {
uid_t uid;
struct group_info *gi;
};
-static struct cache_head *gid_table[GID_HASHMAX];
static void unix_gid_put(struct kref *kref)
{
@@ -494,8 +493,7 @@ static int unix_gid_upcall(struct cache_detail *cd, struct cache_head *h)
return sunrpc_cache_pipe_upcall(cd, h, unix_gid_request);
}
-static struct unix_gid *unix_gid_lookup(uid_t uid);
-extern struct cache_detail unix_gid_cache;
+static struct unix_gid *unix_gid_lookup(struct cache_detail *cd, uid_t uid);
static int unix_gid_parse(struct cache_detail *cd,
char *mesg, int mlen)
@@ -539,19 +537,19 @@ static int unix_gid_parse(struct cache_detail *cd,
GROUP_AT(ug.gi, i) = gid;
}
- ugp = unix_gid_lookup(uid);
+ ugp = unix_gid_lookup(cd, uid);
if (ugp) {
struct cache_head *ch;
ug.h.flags = 0;
ug.h.expiry_time = expiry;
- ch = sunrpc_cache_update(&unix_gid_cache,
+ ch = sunrpc_cache_update(cd,
&ug.h, &ugp->h,
hash_long(uid, GID_HASHBITS));
if (!ch)
err = -ENOMEM;
else {
err = 0;
- cache_put(ch, &unix_gid_cache);
+ cache_put(ch, cd);
}
} else
err = -ENOMEM;
@@ -587,10 +585,9 @@ static int unix_gid_show(struct seq_file *m,
return 0;
}
-struct cache_detail unix_gid_cache = {
+static struct cache_detail unix_gid_cache_template = {
.owner = THIS_MODULE,
.hash_size = GID_HASHMAX,
- .hash_table = gid_table,
.name = "auth.unix.gid",
.cache_put = unix_gid_put,
.cache_upcall = unix_gid_upcall,
@@ -602,14 +599,42 @@ struct cache_detail unix_gid_cache = {
.alloc = unix_gid_alloc,
};
-static struct unix_gid *unix_gid_lookup(uid_t uid)
+int unix_gid_cache_create(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd;
+ int err;
+
+ cd = cache_create_net(&unix_gid_cache_template, net);
+ if (IS_ERR(cd))
+ return PTR_ERR(cd);
+ err = cache_register_net(cd, net);
+ if (err) {
+ cache_destroy_net(cd, net);
+ return err;
+ }
+ sn->unix_gid_cache = cd;
+ return 0;
+}
+
+void unix_gid_cache_destroy(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd = sn->unix_gid_cache;
+
+ sn->unix_gid_cache = NULL;
+ cache_purge(cd);
+ cache_unregister_net(cd, net);
+ cache_destroy_net(cd, net);
+}
+
+static struct unix_gid *unix_gid_lookup(struct cache_detail *cd, uid_t uid)
{
struct unix_gid ug;
struct cache_head *ch;
ug.uid = uid;
- ch = sunrpc_cache_lookup(&unix_gid_cache, &ug.h,
- hash_long(uid, GID_HASHBITS));
+ ch = sunrpc_cache_lookup(cd, &ug.h, hash_long(uid, GID_HASHBITS));
if (ch)
return container_of(ch, struct unix_gid, h);
else
@@ -621,11 +646,13 @@ static struct group_info *unix_gid_find(uid_t uid, struct svc_rqst *rqstp)
struct unix_gid *ug;
struct group_info *gi;
int ret;
+ struct sunrpc_net *sn = net_generic(rqstp->rq_xprt->xpt_net,
+ sunrpc_net_id);
- ug = unix_gid_lookup(uid);
+ ug = unix_gid_lookup(sn->unix_gid_cache, uid);
if (!ug)
return ERR_PTR(-EAGAIN);
- ret = cache_check(&unix_gid_cache, &ug->h, &rqstp->rq_chandle);
+ ret = cache_check(sn->unix_gid_cache, &ug->h, &rqstp->rq_chandle);
switch (ret) {
case -ENOENT:
return ERR_PTR(-ENOENT);
@@ -633,7 +660,7 @@ static struct group_info *unix_gid_find(uid_t uid, struct svc_rqst *rqstp)
return ERR_PTR(-ESHUTDOWN);
case 0:
gi = get_group_info(ug->gi);
- cache_put(&ug->h, &unix_gid_cache);
+ cache_put(&ug->h, sn->unix_gid_cache);
return gi;
default:
return ERR_PTR(-EAGAIN);
@@ -849,56 +876,45 @@ struct auth_ops svcauth_unix = {
.set_client = svcauth_unix_set_client,
};
+static struct cache_detail ip_map_cache_template = {
+ .owner = THIS_MODULE,
+ .hash_size = IP_HASHMAX,
+ .name = "auth.unix.ip",
+ .cache_put = ip_map_put,
+ .cache_upcall = ip_map_upcall,
+ .cache_parse = ip_map_parse,
+ .cache_show = ip_map_show,
+ .match = ip_map_match,
+ .init = ip_map_init,
+ .update = update,
+ .alloc = ip_map_alloc,
+};
+
int ip_map_cache_create(struct net *net)
{
- int err = -ENOMEM;
- struct cache_detail *cd;
- struct cache_head **tbl;
struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd;
+ int err;
- cd = kzalloc(sizeof(struct cache_detail), GFP_KERNEL);
- if (cd == NULL)
- goto err_cd;
-
- tbl = kzalloc(IP_HASHMAX * sizeof(struct cache_head *), GFP_KERNEL);
- if (tbl == NULL)
- goto err_tbl;
-
- cd->owner = THIS_MODULE,
- cd->hash_size = IP_HASHMAX,
- cd->hash_table = tbl,
- cd->name = "auth.unix.ip",
- cd->cache_put = ip_map_put,
- cd->cache_upcall = ip_map_upcall,
- cd->cache_parse = ip_map_parse,
- cd->cache_show = ip_map_show,
- cd->match = ip_map_match,
- cd->init = ip_map_init,
- cd->update = update,
- cd->alloc = ip_map_alloc,
-
+ cd = cache_create_net(&ip_map_cache_template, net);
+ if (IS_ERR(cd))
+ return PTR_ERR(cd);
err = cache_register_net(cd, net);
- if (err)
- goto err_reg;
-
+ if (err) {
+ cache_destroy_net(cd, net);
+ return err;
+ }
sn->ip_map_cache = cd;
return 0;
-
-err_reg:
- kfree(tbl);
-err_tbl:
- kfree(cd);
-err_cd:
- return err;
}
void ip_map_cache_destroy(struct net *net)
{
- struct sunrpc_net *sn;
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+ struct cache_detail *cd = sn->ip_map_cache;
- sn = net_generic(net, sunrpc_net_id);
- cache_purge(sn->ip_map_cache);
- cache_unregister_net(sn->ip_map_cache, net);
- kfree(sn->ip_map_cache->hash_table);
- kfree(sn->ip_map_cache);
+ sn->ip_map_cache = NULL;
+ cache_purge(cd);
+ cache_unregister_net(cd, net);
+ cache_destroy_net(cd, net);
}
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 464570906f80..40ae884db865 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -396,7 +396,7 @@ static int svc_partial_recvfrom(struct svc_rqst *rqstp,
int buflen, unsigned int base)
{
size_t save_iovlen;
- void __user *save_iovbase;
+ void *save_iovbase;
unsigned int i;
int ret;
@@ -1409,7 +1409,8 @@ static struct svc_sock *svc_setup_socket(struct svc_serv *serv,
/* Register socket with portmapper */
if (*errp >= 0 && pmap_register)
- *errp = svc_register(serv, inet->sk_family, inet->sk_protocol,
+ *errp = svc_register(serv, sock_net(sock->sk), inet->sk_family,
+ inet->sk_protocol,
ntohs(inet_sk(inet)->inet_sport));
if (*errp < 0) {
diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c
index e65dcc613339..af7d339add9d 100644
--- a/net/sunrpc/sysctl.c
+++ b/net/sunrpc/sysctl.c
@@ -20,6 +20,8 @@
#include <linux/sunrpc/stats.h>
#include <linux/sunrpc/svc_xprt.h>
+#include "netns.h"
+
/*
* Declare the debug flags here
*/
@@ -110,7 +112,7 @@ proc_dodebug(ctl_table *table, int write,
*(unsigned int *) table->data = value;
/* Display the RPC tasks on writing to rpc_debug */
if (strcmp(table->procname, "rpc_debug") == 0)
- rpc_show_tasks();
+ rpc_show_tasks(&init_net);
} else {
if (!access_ok(VERIFY_WRITE, buffer, left))
return -EFAULT;
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index c64c0ef519b5..0cbcd1ab49ab 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -66,6 +66,7 @@ static void xprt_init(struct rpc_xprt *xprt, struct net *net);
static void xprt_request_init(struct rpc_task *, struct rpc_xprt *);
static void xprt_connect_status(struct rpc_task *task);
static int __xprt_get_cong(struct rpc_xprt *, struct rpc_task *);
+static void xprt_destroy(struct rpc_xprt *xprt);
static DEFINE_SPINLOCK(xprt_list_lock);
static LIST_HEAD(xprt_list);
@@ -292,54 +293,57 @@ static inline int xprt_lock_write(struct rpc_xprt *xprt, struct rpc_task *task)
return retval;
}
-static void __xprt_lock_write_next(struct rpc_xprt *xprt)
+static bool __xprt_lock_write_func(struct rpc_task *task, void *data)
{
- struct rpc_task *task;
+ struct rpc_xprt *xprt = data;
struct rpc_rqst *req;
- if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
- return;
-
- task = rpc_wake_up_next(&xprt->sending);
- if (task == NULL)
- goto out_unlock;
-
req = task->tk_rqstp;
xprt->snd_task = task;
if (req) {
req->rq_bytes_sent = 0;
req->rq_ntrans++;
}
- return;
+ return true;
+}
-out_unlock:
+static void __xprt_lock_write_next(struct rpc_xprt *xprt)
+{
+ if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
+ return;
+
+ if (rpc_wake_up_first(&xprt->sending, __xprt_lock_write_func, xprt))
+ return;
xprt_clear_locked(xprt);
}
-static void __xprt_lock_write_next_cong(struct rpc_xprt *xprt)
+static bool __xprt_lock_write_cong_func(struct rpc_task *task, void *data)
{
- struct rpc_task *task;
+ struct rpc_xprt *xprt = data;
struct rpc_rqst *req;
- if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
- return;
- if (RPCXPRT_CONGESTED(xprt))
- goto out_unlock;
- task = rpc_wake_up_next(&xprt->sending);
- if (task == NULL)
- goto out_unlock;
-
req = task->tk_rqstp;
if (req == NULL) {
xprt->snd_task = task;
- return;
+ return true;
}
if (__xprt_get_cong(xprt, task)) {
xprt->snd_task = task;
req->rq_bytes_sent = 0;
req->rq_ntrans++;
- return;
+ return true;
}
+ return false;
+}
+
+static void __xprt_lock_write_next_cong(struct rpc_xprt *xprt)
+{
+ if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
+ return;
+ if (RPCXPRT_CONGESTED(xprt))
+ goto out_unlock;
+ if (rpc_wake_up_first(&xprt->sending, __xprt_lock_write_cong_func, xprt))
+ return;
out_unlock:
xprt_clear_locked(xprt);
}
@@ -712,9 +716,7 @@ void xprt_connect(struct rpc_task *task)
if (xprt_connected(xprt))
xprt_release_write(xprt, task);
else {
- if (task->tk_rqstp)
- task->tk_rqstp->rq_bytes_sent = 0;
-
+ task->tk_rqstp->rq_bytes_sent = 0;
task->tk_timeout = task->tk_rqstp->rq_timeout;
rpc_sleep_on(&xprt->pending, task, xprt_connect_status);
@@ -750,7 +752,7 @@ static void xprt_connect_status(struct rpc_task *task)
default:
dprintk("RPC: %5u xprt_connect_status: error %d connecting to "
"server %s\n", task->tk_pid, -task->tk_status,
- task->tk_client->cl_server);
+ xprt->servername);
xprt_release_write(xprt, task);
task->tk_status = -EIO;
}
@@ -884,7 +886,7 @@ void xprt_transmit(struct rpc_task *task)
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
- int status;
+ int status, numreqs;
dprintk("RPC: %5u xprt_transmit(%u)\n", task->tk_pid, req->rq_slen);
@@ -921,9 +923,14 @@ void xprt_transmit(struct rpc_task *task)
xprt->ops->set_retrans_timeout(task);
+ numreqs = atomic_read(&xprt->num_reqs);
+ if (numreqs > xprt->stat.max_slots)
+ xprt->stat.max_slots = numreqs;
xprt->stat.sends++;
xprt->stat.req_u += xprt->stat.sends - xprt->stat.recvs;
xprt->stat.bklog_u += xprt->backlog.qlen;
+ xprt->stat.sending_u += xprt->sending.qlen;
+ xprt->stat.pending_u += xprt->pending.qlen;
/* Don't race with disconnect */
if (!xprt_connected(xprt))
@@ -1131,7 +1138,10 @@ void xprt_release(struct rpc_task *task)
return;
xprt = req->rq_xprt;
- rpc_count_iostats(task);
+ if (task->tk_ops->rpc_count_stats != NULL)
+ task->tk_ops->rpc_count_stats(task, task->tk_calldata);
+ else if (task->tk_client)
+ rpc_count_iostats(task, task->tk_client->cl_metrics);
spin_lock_bh(&xprt->transport_lock);
xprt->ops->release_xprt(xprt, task);
if (xprt->ops->release_request)
@@ -1220,6 +1230,17 @@ found:
(unsigned long)xprt);
else
init_timer(&xprt->timer);
+
+ if (strlen(args->servername) > RPC_MAXNETNAMELEN) {
+ xprt_destroy(xprt);
+ return ERR_PTR(-EINVAL);
+ }
+ xprt->servername = kstrdup(args->servername, GFP_KERNEL);
+ if (xprt->servername == NULL) {
+ xprt_destroy(xprt);
+ return ERR_PTR(-ENOMEM);
+ }
+
dprintk("RPC: created transport %p with %u slots\n", xprt,
xprt->max_reqs);
out:
@@ -1242,6 +1263,7 @@ static void xprt_destroy(struct rpc_xprt *xprt)
rpc_destroy_wait_queue(&xprt->sending);
rpc_destroy_wait_queue(&xprt->backlog);
cancel_work_sync(&xprt->task_cleanup);
+ kfree(xprt->servername);
/*
* Tear down transport state and free the rpc_xprt
*/
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 1776e5731dcf..558fbab574f0 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -771,13 +771,18 @@ repost:
/* get request object */
req = rpcr_to_rdmar(rqst);
+ if (req->rl_reply) {
+ spin_unlock(&xprt->transport_lock);
+ dprintk("RPC: %s: duplicate reply 0x%p to RPC "
+ "request 0x%p: xid 0x%08x\n", __func__, rep, req,
+ headerp->rm_xid);
+ goto repost;
+ }
dprintk("RPC: %s: reply 0x%p completes request 0x%p\n"
" RPC request 0x%p xid 0x%08x\n",
__func__, rep, req, rqst, headerp->rm_xid);
- BUG_ON(!req || req->rl_reply);
-
/* from here on, the reply is no longer an orphan */
req->rl_reply = rep;
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 28236bab57f9..745973b729af 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1490,6 +1490,9 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
u8 key;
int len, pageoff;
int i, rc;
+ int seg_len;
+ u64 pa;
+ int page_no;
pageoff = offset_in_page(seg1->mr_offset);
seg1->mr_offset -= pageoff; /* start of page */
@@ -1497,11 +1500,15 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
len = -pageoff;
if (*nsegs > RPCRDMA_MAX_DATA_SEGS)
*nsegs = RPCRDMA_MAX_DATA_SEGS;
- for (i = 0; i < *nsegs;) {
+ for (page_no = i = 0; i < *nsegs;) {
rpcrdma_map_one(ia, seg, writing);
- seg1->mr_chunk.rl_mw->r.frmr.fr_pgl->page_list[i] = seg->mr_dma;
+ pa = seg->mr_dma;
+ for (seg_len = seg->mr_len; seg_len > 0; seg_len -= PAGE_SIZE) {
+ seg1->mr_chunk.rl_mw->r.frmr.fr_pgl->
+ page_list[page_no++] = pa;
+ pa += PAGE_SIZE;
+ }
len += seg->mr_len;
- BUG_ON(seg->mr_len > PAGE_SIZE);
++seg;
++i;
/* Check for holes */
@@ -1540,9 +1547,9 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
frmr_wr.send_flags = IB_SEND_SIGNALED;
frmr_wr.wr.fast_reg.iova_start = seg1->mr_dma;
frmr_wr.wr.fast_reg.page_list = seg1->mr_chunk.rl_mw->r.frmr.fr_pgl;
- frmr_wr.wr.fast_reg.page_list_len = i;
+ frmr_wr.wr.fast_reg.page_list_len = page_no;
frmr_wr.wr.fast_reg.page_shift = PAGE_SHIFT;
- frmr_wr.wr.fast_reg.length = i << PAGE_SHIFT;
+ frmr_wr.wr.fast_reg.length = page_no << PAGE_SHIFT;
BUG_ON(frmr_wr.wr.fast_reg.length < len);
frmr_wr.wr.fast_reg.access_flags = (writing ?
IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE :
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 55472c48825e..92bc5181dbeb 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -53,12 +53,12 @@ static void xs_close(struct rpc_xprt *xprt);
/*
* xprtsock tunables
*/
-unsigned int xprt_udp_slot_table_entries = RPC_DEF_SLOT_TABLE;
-unsigned int xprt_tcp_slot_table_entries = RPC_MIN_SLOT_TABLE;
-unsigned int xprt_max_tcp_slot_table_entries = RPC_MAX_SLOT_TABLE;
+static unsigned int xprt_udp_slot_table_entries = RPC_DEF_SLOT_TABLE;
+static unsigned int xprt_tcp_slot_table_entries = RPC_MIN_SLOT_TABLE;
+static unsigned int xprt_max_tcp_slot_table_entries = RPC_MAX_SLOT_TABLE;
-unsigned int xprt_min_resvport = RPC_DEF_MIN_RESVPORT;
-unsigned int xprt_max_resvport = RPC_DEF_MAX_RESVPORT;
+static unsigned int xprt_min_resvport = RPC_DEF_MIN_RESVPORT;
+static unsigned int xprt_max_resvport = RPC_DEF_MAX_RESVPORT;
#define XS_TCP_LINGER_TO (15U * HZ)
static unsigned int xs_tcp_fin_timeout __read_mostly = XS_TCP_LINGER_TO;
@@ -2227,7 +2227,7 @@ static void xs_local_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
idle_time = (long)(jiffies - xprt->last_used) / HZ;
seq_printf(seq, "\txprt:\tlocal %lu %lu %lu %ld %lu %lu %lu "
- "%llu %llu\n",
+ "%llu %llu %lu %llu %llu\n",
xprt->stat.bind_count,
xprt->stat.connect_count,
xprt->stat.connect_time,
@@ -2236,7 +2236,10 @@ static void xs_local_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
xprt->stat.recvs,
xprt->stat.bad_xids,
xprt->stat.req_u,
- xprt->stat.bklog_u);
+ xprt->stat.bklog_u,
+ xprt->stat.max_slots,
+ xprt->stat.sending_u,
+ xprt->stat.pending_u);
}
/**
@@ -2249,14 +2252,18 @@ static void xs_udp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
{
struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
- seq_printf(seq, "\txprt:\tudp %u %lu %lu %lu %lu %Lu %Lu\n",
+ seq_printf(seq, "\txprt:\tudp %u %lu %lu %lu %lu %llu %llu "
+ "%lu %llu %llu\n",
transport->srcport,
xprt->stat.bind_count,
xprt->stat.sends,
xprt->stat.recvs,
xprt->stat.bad_xids,
xprt->stat.req_u,
- xprt->stat.bklog_u);
+ xprt->stat.bklog_u,
+ xprt->stat.max_slots,
+ xprt->stat.sending_u,
+ xprt->stat.pending_u);
}
/**
@@ -2273,7 +2280,8 @@ static void xs_tcp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
if (xprt_connected(xprt))
idle_time = (long)(jiffies - xprt->last_used) / HZ;
- seq_printf(seq, "\txprt:\ttcp %u %lu %lu %lu %ld %lu %lu %lu %Lu %Lu\n",
+ seq_printf(seq, "\txprt:\ttcp %u %lu %lu %lu %ld %lu %lu %lu "
+ "%llu %llu %lu %llu %llu\n",
transport->srcport,
xprt->stat.bind_count,
xprt->stat.connect_count,
@@ -2283,7 +2291,10 @@ static void xs_tcp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
xprt->stat.recvs,
xprt->stat.bad_xids,
xprt->stat.req_u,
- xprt->stat.bklog_u);
+ xprt->stat.bklog_u,
+ xprt->stat.max_slots,
+ xprt->stat.sending_u,
+ xprt->stat.pending_u);
}
/*
diff --git a/security/keys/key.c b/security/keys/key.c
index 7ada8019be1f..06783cffb3af 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -671,6 +671,26 @@ found_kernel_type:
return ktype;
}
+void key_set_timeout(struct key *key, unsigned timeout)
+{
+ struct timespec now;
+ time_t expiry = 0;
+
+ /* make the changes with the locks held to prevent races */
+ down_write(&key->sem);
+
+ if (timeout > 0) {
+ now = current_kernel_time();
+ expiry = now.tv_sec + timeout;
+ }
+
+ key->expiry = expiry;
+ key_schedule_gc(key->expiry + key_gc_delay);
+
+ up_write(&key->sem);
+}
+EXPORT_SYMBOL_GPL(key_set_timeout);
+
/*
* Unlock a key type locked by key_type_lookup().
*/
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 6523599e9ac0..fb767c6cd99f 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -14,6 +14,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/syscalls.h>
+#include <linux/key.h>
#include <linux/keyctl.h>
#include <linux/fs.h>
#include <linux/capability.h>
@@ -1257,10 +1258,8 @@ error:
*/
long keyctl_set_timeout(key_serial_t id, unsigned timeout)
{
- struct timespec now;
struct key *key, *instkey;
key_ref_t key_ref;
- time_t expiry;
long ret;
key_ref = lookup_user_key(id, KEY_LOOKUP_CREATE | KEY_LOOKUP_PARTIAL,
@@ -1286,20 +1285,7 @@ long keyctl_set_timeout(key_serial_t id, unsigned timeout)
okay:
key = key_ref_to_ptr(key_ref);
-
- /* make the changes with the locks held to prevent races */
- down_write(&key->sem);
-
- expiry = 0;
- if (timeout > 0) {
- now = current_kernel_time();
- expiry = now.tv_sec + timeout;
- }
-
- key->expiry = expiry;
- key_schedule_gc(key->expiry + key_gc_delay);
-
- up_write(&key->sem);
+ key_set_timeout(key, timeout);
key_put(key);
ret = 0;