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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-15 08:16:53 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-15 08:16:53 -0700
commit37ca506adc395a028cd12760eca419dd0dc14b5c (patch)
treebab6f2644ef6bda4df1518f7063852012b69f458 /fs
parentb9090071a57185707c27b9d61b81bf941dbdf122 (diff)
parenta16e92edcd0a2846455a30823e1bac964e743baa (diff)
Merge branch 'nfs-server-stable' of git://linux-nfs.org/~bfields/linux
* 'nfs-server-stable' of git://linux-nfs.org/~bfields/linux: knfsd: query filesystem for NFSv4 getattr of FATTR4_MAXNAME knfsd: nfsv4 delegation recall should take reference on client knfsd: don't shutdown callbacks until nfsv4 client is freed knfsd: let nfsd manage timing out its own leases knfsd: Add source address to sunrpc svc errors knfsd: 64 bit ino support for NFS server svcgss: move init code into separate function knfsd: remove code duplication in nfsd4_setclientid() nfsd warning fix knfsd: fix callback rpc cred knfsd: move nfsv4 slab creation/destruction to module init/exit knfsd: spawn kernel thread to probe callback channel knfsd: nfs4 name->id mapping not correctly parsing negative downcall knfsd: demote some printk()s to dprintk()s knfsd: cleanup of nfsd4 cmp_* functions knfsd: delete code made redundant by map_new_errors nfsd: fix horrible indentation in nfsd_setattr nfsd: remove unused cache_for_each macro nfsd: tone down inaccurate dprintk
Diffstat (limited to 'fs')
-rw-r--r--fs/nfsd/nfs3xdr.c59
-rw-r--r--fs/nfsd/nfs4callback.c89
-rw-r--r--fs/nfsd/nfs4idmap.c8
-rw-r--r--fs/nfsd/nfs4proc.c4
-rw-r--r--fs/nfsd/nfs4state.c200
-rw-r--r--fs/nfsd/nfs4xdr.c22
-rw-r--r--fs/nfsd/nfsctl.c7
-rw-r--r--fs/nfsd/nfssvc.c8
-rw-r--r--fs/nfsd/nfsxdr.c4
-rw-r--r--fs/nfsd/vfs.c43
10 files changed, 203 insertions, 241 deletions
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 10f6e7dcf633..2d116d2298f8 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -174,9 +174,6 @@ static __be32 *
encode_fattr3(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp,
struct kstat *stat)
{
- struct dentry *dentry = fhp->fh_dentry;
- struct timespec time;
-
*p++ = htonl(nfs3_ftypes[(stat->mode & S_IFMT) >> 12]);
*p++ = htonl((u32) stat->mode);
*p++ = htonl((u32) stat->nlink);
@@ -191,10 +188,9 @@ encode_fattr3(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp,
*p++ = htonl((u32) MAJOR(stat->rdev));
*p++ = htonl((u32) MINOR(stat->rdev));
p = encode_fsid(p, fhp);
- p = xdr_encode_hyper(p, (u64) stat->ino);
+ p = xdr_encode_hyper(p, stat->ino);
p = encode_time3(p, &stat->atime);
- lease_get_mtime(dentry->d_inode, &time);
- p = encode_time3(p, &time);
+ p = encode_time3(p, &stat->mtime);
p = encode_time3(p, &stat->ctime);
return p;
@@ -203,31 +199,9 @@ encode_fattr3(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp,
static __be32 *
encode_saved_post_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
{
- struct inode *inode = fhp->fh_dentry->d_inode;
-
/* Attributes to follow */
*p++ = xdr_one;
-
- *p++ = htonl(nfs3_ftypes[(fhp->fh_post_mode & S_IFMT) >> 12]);
- *p++ = htonl((u32) fhp->fh_post_mode);
- *p++ = htonl((u32) fhp->fh_post_nlink);
- *p++ = htonl((u32) nfsd_ruid(rqstp, fhp->fh_post_uid));
- *p++ = htonl((u32) nfsd_rgid(rqstp, fhp->fh_post_gid));
- if (S_ISLNK(fhp->fh_post_mode) && fhp->fh_post_size > NFS3_MAXPATHLEN) {
- p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN);
- } else {
- p = xdr_encode_hyper(p, (u64) fhp->fh_post_size);
- }
- p = xdr_encode_hyper(p, ((u64)fhp->fh_post_blocks) << 9);
- *p++ = fhp->fh_post_rdev[0];
- *p++ = fhp->fh_post_rdev[1];
- p = encode_fsid(p, fhp);
- p = xdr_encode_hyper(p, (u64) inode->i_ino);
- p = encode_time3(p, &fhp->fh_post_atime);
- p = encode_time3(p, &fhp->fh_post_mtime);
- p = encode_time3(p, &fhp->fh_post_ctime);
-
- return p;
+ return encode_fattr3(rqstp, p, fhp, &fhp->fh_post_attr);
}
/*
@@ -246,6 +220,7 @@ encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
err = vfs_getattr(fhp->fh_export->ex_mnt, dentry, &stat);
if (!err) {
*p++ = xdr_one; /* attributes follow */
+ lease_get_mtime(dentry->d_inode, &stat.mtime);
return encode_fattr3(rqstp, p, fhp, &stat);
}
}
@@ -284,6 +259,23 @@ encode_wcc_data(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
return encode_post_op_attr(rqstp, p, fhp);
}
+/*
+ * Fill in the post_op attr for the wcc data
+ */
+void fill_post_wcc(struct svc_fh *fhp)
+{
+ int err;
+
+ if (fhp->fh_post_saved)
+ printk("nfsd: inode locked twice during operation.\n");
+
+ err = vfs_getattr(fhp->fh_export->ex_mnt, fhp->fh_dentry,
+ &fhp->fh_post_attr);
+ if (err)
+ fhp->fh_post_saved = 0;
+ else
+ fhp->fh_post_saved = 1;
+}
/*
* XDR decode functions
@@ -643,8 +635,11 @@ int
nfs3svc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_attrstat *resp)
{
- if (resp->status == 0)
+ if (resp->status == 0) {
+ lease_get_mtime(resp->fh.fh_dentry->d_inode,
+ &resp->stat.mtime);
p = encode_fattr3(rqstp, p, &resp->fh, &resp->stat);
+ }
return xdr_ressize_check(rqstp, p);
}
@@ -802,7 +797,7 @@ nfs3svc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p,
static __be32 *
encode_entry_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name,
- int namlen, ino_t ino)
+ int namlen, u64 ino)
{
*p++ = xdr_one; /* mark entry present */
p = xdr_encode_hyper(p, ino); /* file id */
@@ -873,7 +868,7 @@ compose_entry_fh(struct nfsd3_readdirres *cd, struct svc_fh *fhp,
#define NFS3_ENTRYPLUS_BAGGAGE (1 + 21 + 1 + (NFS3_FHSIZE >> 2))
static int
encode_entry(struct readdir_cd *ccd, const char *name, int namlen,
- loff_t offset, ino_t ino, unsigned int d_type, int plus)
+ loff_t offset, u64 ino, unsigned int d_type, int plus)
{
struct nfsd3_readdirres *cd = container_of(ccd, struct nfsd3_readdirres,
common);
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 31d6633c7fe4..9d536a8cb379 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -39,6 +39,7 @@
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/sched.h>
+#include <linux/kthread.h>
#include <linux/sunrpc/xdr.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/clnt.h>
@@ -343,26 +344,28 @@ static struct rpc_version * nfs_cb_version[] = {
&nfs_cb_version4,
};
-/*
- * Use the SETCLIENTID credential
- */
-static struct rpc_cred *
-nfsd4_lookupcred(struct nfs4_client *clp, int taskflags)
+/* Reference counting, callback cleanup, etc., all look racy as heck.
+ * And why is cb_set an atomic? */
+
+static int do_probe_callback(void *data)
{
- struct auth_cred acred;
- struct rpc_clnt *clnt = clp->cl_callback.cb_client;
- struct rpc_cred *ret;
-
- get_group_info(clp->cl_cred.cr_group_info);
- acred.uid = clp->cl_cred.cr_uid;
- acred.gid = clp->cl_cred.cr_gid;
- acred.group_info = clp->cl_cred.cr_group_info;
-
- dprintk("NFSD: looking up %s cred\n",
- clnt->cl_auth->au_ops->au_name);
- ret = rpcauth_lookup_credcache(clnt->cl_auth, &acred, taskflags);
- put_group_info(clp->cl_cred.cr_group_info);
- return ret;
+ struct nfs4_client *clp = data;
+ struct nfs4_callback *cb = &clp->cl_callback;
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL],
+ .rpc_argp = clp,
+ };
+ int status;
+
+ status = rpc_call_sync(cb->cb_client, &msg, RPC_TASK_SOFT);
+
+ if (status) {
+ rpc_shutdown_client(cb->cb_client);
+ cb->cb_client = NULL;
+ } else
+ atomic_set(&cb->cb_set, 1);
+ put_nfs4_client(clp);
+ return 0;
}
/*
@@ -390,11 +393,7 @@ nfsd4_probe_callback(struct nfs4_client *clp)
.authflavor = RPC_AUTH_UNIX, /* XXX: need AUTH_GSS... */
.flags = (RPC_CLNT_CREATE_NOPING),
};
- struct rpc_message msg = {
- .rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL],
- .rpc_argp = clp,
- };
- int status;
+ struct task_struct *t;
if (atomic_read(&cb->cb_set))
return;
@@ -426,16 +425,11 @@ nfsd4_probe_callback(struct nfs4_client *clp)
/* the task holds a reference to the nfs4_client struct */
atomic_inc(&clp->cl_count);
- msg.rpc_cred = nfsd4_lookupcred(clp,0);
- if (IS_ERR(msg.rpc_cred))
- goto out_release_clp;
- status = rpc_call_async(cb->cb_client, &msg, RPC_TASK_ASYNC, &nfs4_cb_null_ops, NULL);
- put_rpccred(msg.rpc_cred);
+ t = kthread_run(do_probe_callback, clp, "nfs4_cb_probe");
- if (status != 0) {
- dprintk("NFSD: asynchronous NFSPROC4_CB_NULL failed!\n");
+ if (IS_ERR(t))
goto out_release_clp;
- }
+
return;
out_release_clp:
@@ -447,30 +441,6 @@ out_err:
(int)clp->cl_name.len, clp->cl_name.data);
}
-static void
-nfs4_cb_null(struct rpc_task *task, void *dummy)
-{
- struct nfs4_client *clp = (struct nfs4_client *)task->tk_msg.rpc_argp;
- struct nfs4_callback *cb = &clp->cl_callback;
- __be32 addr = htonl(cb->cb_addr);
-
- dprintk("NFSD: nfs4_cb_null task->tk_status %d\n", task->tk_status);
-
- if (task->tk_status < 0) {
- dprintk("NFSD: callback establishment to client %.*s failed\n",
- (int)clp->cl_name.len, clp->cl_name.data);
- goto out;
- }
- atomic_set(&cb->cb_set, 1);
- dprintk("NFSD: callback set to client %u.%u.%u.%u\n", NIPQUAD(addr));
-out:
- put_nfs4_client(clp);
-}
-
-static const struct rpc_call_ops nfs4_cb_null_ops = {
- .rpc_call_done = nfs4_cb_null,
-};
-
/*
* called with dp->dl_count inc'ed.
* nfs4_lock_state() may or may not have been called.
@@ -491,10 +461,6 @@ nfsd4_cb_recall(struct nfs4_delegation *dp)
if ((!atomic_read(&clp->cl_callback.cb_set)) || !clnt)
return;
- msg.rpc_cred = nfsd4_lookupcred(clp, 0);
- if (IS_ERR(msg.rpc_cred))
- goto out;
-
cbr->cbr_trunc = 0; /* XXX need to implement truncate optimization */
cbr->cbr_dp = dp;
@@ -515,13 +481,12 @@ nfsd4_cb_recall(struct nfs4_delegation *dp)
status = rpc_call_sync(clnt, &msg, RPC_TASK_SOFT);
}
out_put_cred:
- put_rpccred(msg.rpc_cred);
-out:
if (status == -EIO)
atomic_set(&clp->cl_callback.cb_set, 0);
/* Success or failure, now we're either waiting for lease expiration
* or deleg_return. */
dprintk("NFSD: nfs4_cb_recall: dp %p dl_flock %p dl_count %d\n",dp, dp->dl_flock, atomic_read(&dp->dl_count));
+ put_nfs4_client(clp);
nfs4_put_delegation(dp);
return;
}
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index 2ccffde81b84..4c0c683ce07a 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -207,6 +207,7 @@ idtoname_parse(struct cache_detail *cd, char *buf, int buflen)
{
struct ent ent, *res;
char *buf1, *bp;
+ int len;
int error = -EINVAL;
if (buf[buflen - 1] != '\n')
@@ -248,10 +249,11 @@ idtoname_parse(struct cache_detail *cd, char *buf, int buflen)
goto out;
/* Name */
- error = qword_get(&buf, buf1, PAGE_SIZE);
- if (error == -EINVAL)
+ error = -EINVAL;
+ len = qword_get(&buf, buf1, PAGE_SIZE);
+ if (len < 0)
goto out;
- if (error == -ENOENT)
+ if (len == 0)
set_bit(CACHE_NEGATIVE, &ent.h.flags);
else {
if (error >= IDMAP_NAMESZ) {
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 29b7e63cb32c..18ead1790bb3 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -238,12 +238,12 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
break;
case NFS4_OPEN_CLAIM_DELEGATE_PREV:
open->op_stateowner->so_confirmed = 1;
- printk("NFSD: unsupported OPEN claim type %d\n",
+ dprintk("NFSD: unsupported OPEN claim type %d\n",
open->op_claim_type);
status = nfserr_notsupp;
goto out;
default:
- printk("NFSD: Invalid OPEN claim type %d\n",
+ dprintk("NFSD: Invalid OPEN claim type %d\n",
open->op_claim_type);
status = nfserr_inval;
goto out;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 3f559700788f..6f182d25793d 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -358,9 +358,22 @@ alloc_client(struct xdr_netobj name)
return clp;
}
+static void
+shutdown_callback_client(struct nfs4_client *clp)
+{
+ struct rpc_clnt *clnt = clp->cl_callback.cb_client;
+
+ /* shutdown rpc client, ending any outstanding recall rpcs */
+ if (clnt) {
+ clp->cl_callback.cb_client = NULL;
+ rpc_shutdown_client(clnt);
+ }
+}
+
static inline void
free_client(struct nfs4_client *clp)
{
+ shutdown_callback_client(clp);
if (clp->cl_cred.cr_group_info)
put_group_info(clp->cl_cred.cr_group_info);
kfree(clp->cl_name.data);
@@ -375,18 +388,6 @@ put_nfs4_client(struct nfs4_client *clp)
}
static void
-shutdown_callback_client(struct nfs4_client *clp)
-{
- struct rpc_clnt *clnt = clp->cl_callback.cb_client;
-
- /* shutdown rpc client, ending any outstanding recall rpcs */
- if (clnt) {
- clp->cl_callback.cb_client = NULL;
- rpc_shutdown_client(clnt);
- }
-}
-
-static void
expire_client(struct nfs4_client *clp)
{
struct nfs4_stateowner *sop;
@@ -396,8 +397,6 @@ expire_client(struct nfs4_client *clp)
dprintk("NFSD: expire_client cl_count %d\n",
atomic_read(&clp->cl_count));
- shutdown_callback_client(clp);
-
INIT_LIST_HEAD(&reaplist);
spin_lock(&recall_lock);
while (!list_empty(&clp->cl_delegations)) {
@@ -462,26 +461,28 @@ copy_cred(struct svc_cred *target, struct svc_cred *source) {
}
static inline int
-same_name(const char *n1, const char *n2) {
+same_name(const char *n1, const char *n2)
+{
return 0 == memcmp(n1, n2, HEXDIR_LEN);
}
static int
-cmp_verf(nfs4_verifier *v1, nfs4_verifier *v2) {
- return(!memcmp(v1->data,v2->data,sizeof(v1->data)));
+same_verf(nfs4_verifier *v1, nfs4_verifier *v2)
+{
+ return 0 == memcmp(v1->data, v2->data, sizeof(v1->data));
}
static int
-cmp_clid(clientid_t * cl1, clientid_t * cl2) {
- return((cl1->cl_boot == cl2->cl_boot) &&
- (cl1->cl_id == cl2->cl_id));
+same_clid(clientid_t *cl1, clientid_t *cl2)
+{
+ return (cl1->cl_boot == cl2->cl_boot) && (cl1->cl_id == cl2->cl_id);
}
/* XXX what about NGROUP */
static int
-cmp_creds(struct svc_cred *cr1, struct svc_cred *cr2){
- return(cr1->cr_uid == cr2->cr_uid);
-
+same_creds(struct svc_cred *cr1, struct svc_cred *cr2)
+{
+ return cr1->cr_uid == cr2->cr_uid;
}
static void
@@ -507,7 +508,7 @@ check_name(struct xdr_netobj name) {
if (name.len == 0)
return 0;
if (name.len > NFS4_OPAQUE_LIMIT) {
- printk("NFSD: check_name: name too long(%d)!\n", name.len);
+ dprintk("NFSD: check_name: name too long(%d)!\n", name.len);
return 0;
}
return 1;
@@ -546,7 +547,7 @@ find_confirmed_client(clientid_t *clid)
unsigned int idhashval = clientid_hashval(clid->cl_id);
list_for_each_entry(clp, &conf_id_hashtbl[idhashval], cl_idhash) {
- if (cmp_clid(&clp->cl_clientid, clid))
+ if (same_clid(&clp->cl_clientid, clid))
return clp;
}
return NULL;
@@ -559,7 +560,7 @@ find_unconfirmed_client(clientid_t *clid)
unsigned int idhashval = clientid_hashval(clid->cl_id);
list_for_each_entry(clp, &unconf_id_hashtbl[idhashval], cl_idhash) {
- if (cmp_clid(&clp->cl_clientid, clid))
+ if (same_clid(&clp->cl_clientid, clid))
return clp;
}
return NULL;
@@ -753,7 +754,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
* or different ip_address
*/
status = nfserr_clid_inuse;
- if (!cmp_creds(&conf->cl_cred, &rqstp->rq_cred)
+ if (!same_creds(&conf->cl_cred, &rqstp->rq_cred)
|| conf->cl_addr != sin->sin_addr.s_addr) {
dprintk("NFSD: setclientid: string in use by client"
"at %u.%u.%u.%u\n", NIPQUAD(conf->cl_addr));
@@ -772,14 +773,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
new = create_client(clname, dname);
if (new == NULL)
goto out;
- copy_verf(new, &clverifier);
- new->cl_addr = sin->sin_addr.s_addr;
- copy_cred(&new->cl_cred,&rqstp->rq_cred);
gen_clid(new);
- gen_confirm(new);
- gen_callback(new, setclid);
- add_to_unconfirmed(new, strhashval);
- } else if (cmp_verf(&conf->cl_verifier, &clverifier)) {
+ } else if (same_verf(&conf->cl_verifier, &clverifier)) {
/*
* CASE 1:
* cl_name match, confirmed, principal match
@@ -804,13 +799,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
new = create_client(clname, dname);
if (new == NULL)
goto out;
- copy_verf(new,&conf->cl_verifier);
- new->cl_addr = sin->sin_addr.s_addr;
- copy_cred(&new->cl_cred,&rqstp->rq_cred);
copy_clid(new, conf);
- gen_confirm(new);
- gen_callback(new, setclid);
- add_to_unconfirmed(new,strhashval);
} else if (!unconf) {
/*
* CASE 2:
@@ -823,14 +812,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
new = create_client(clname, dname);
if (new == NULL)
goto out;
- copy_verf(new,&clverifier);
- new->cl_addr = sin->sin_addr.s_addr;
- copy_cred(&new->cl_cred,&rqstp->rq_cred);
gen_clid(new);
- gen_confirm(new);
- gen_callback(new, setclid);
- add_to_unconfirmed(new, strhashval);
- } else if (!cmp_verf(&conf->cl_confirm, &unconf->cl_confirm)) {
+ } else if (!same_verf(&conf->cl_confirm, &unconf->cl_confirm)) {
/*
* CASE3:
* confirmed found (name, principal match)
@@ -850,19 +833,19 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
new = create_client(clname, dname);
if (new == NULL)
goto out;
- copy_verf(new,&clverifier);
- new->cl_addr = sin->sin_addr.s_addr;
- copy_cred(&new->cl_cred,&rqstp->rq_cred);
gen_clid(new);
- gen_confirm(new);
- gen_callback(new, setclid);
- add_to_unconfirmed(new, strhashval);
} else {
/* No cases hit !!! */
status = nfserr_inval;
goto out;
}
+ copy_verf(new, &clverifier);
+ new->cl_addr = sin->sin_addr.s_addr;
+ copy_cred(&new->cl_cred, &rqstp->rq_cred);
+ gen_confirm(new);
+ gen_callback(new, setclid);
+ add_to_unconfirmed(new, strhashval);
setclid->se_clientid.cl_boot = new->cl_clientid.cl_boot;
setclid->se_clientid.cl_id = new->cl_clientid.cl_id;
memcpy(setclid->se_confirm.data, new->cl_confirm.data, sizeof(setclid->se_confirm.data));
@@ -910,16 +893,16 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
goto out;
if ((conf && unconf) &&
- (cmp_verf(&unconf->cl_confirm, &confirm)) &&
- (cmp_verf(&conf->cl_verifier, &unconf->cl_verifier)) &&
+ (same_verf(&unconf->cl_confirm, &confirm)) &&
+ (same_verf(&conf->cl_verifier, &unconf->cl_verifier)) &&
(same_name(conf->cl_recdir,unconf->cl_recdir)) &&
- (!cmp_verf(&conf->cl_confirm, &unconf->cl_confirm))) {
+ (!same_verf(&conf->cl_confirm, &unconf->cl_confirm))) {
/* CASE 1:
* unconf record that matches input clientid and input confirm.
* conf record that matches input clientid.
* conf and unconf records match names, verifiers
*/
- if (!cmp_creds(&conf->cl_cred, &unconf->cl_cred))
+ if (!same_creds(&conf->cl_cred, &unconf->cl_cred))
status = nfserr_clid_inuse;
else {
/* XXX: We just turn off callbacks until we can handle
@@ -933,7 +916,7 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
}
} else if ((conf && !unconf) ||
((conf && unconf) &&
- (!cmp_verf(&conf->cl_verifier, &unconf->cl_verifier) ||
+ (!same_verf(&conf->cl_verifier, &unconf->cl_verifier) ||
!same_name(conf->cl_recdir, unconf->cl_recdir)))) {
/* CASE 2:
* conf record that matches input clientid.
@@ -941,18 +924,18 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
* unconf->cl_name or unconf->cl_verifier don't match the
* conf record.
*/
- if (!cmp_creds(&conf->cl_cred,&rqstp->rq_cred))
+ if (!same_creds(&conf->cl_cred, &rqstp->rq_cred))
status = nfserr_clid_inuse;
else
status = nfs_ok;
} else if (!conf && unconf
- && cmp_verf(&unconf->cl_confirm, &confirm)) {
+ && same_verf(&unconf->cl_confirm, &confirm)) {
/* CASE 3:
* conf record not found.
* unconf record found.
* unconf->cl_confirm matches input confirm
*/
- if (!cmp_creds(&unconf->cl_cred, &rqstp->rq_cred)) {
+ if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred)) {
status = nfserr_clid_inuse;
} else {
unsigned int hash =
@@ -967,8 +950,8 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
conf = unconf;
status = nfs_ok;
}
- } else if ((!conf || (conf && !cmp_verf(&conf->cl_confirm, &confirm)))
- && (!unconf || (unconf && !cmp_verf(&unconf->cl_confirm,
+ } else if ((!conf || (conf && !same_verf(&conf->cl_confirm, &confirm)))
+ && (!unconf || (unconf && !same_verf(&unconf->cl_confirm,
&confirm)))) {
/* CASE 4:
* conf record not found, or if conf, conf->cl_confirm does not
@@ -1019,7 +1002,7 @@ nfsd4_free_slab(struct kmem_cache **slab)
*slab = NULL;
}
-static void
+void
nfsd4_free_slabs(void)
{
nfsd4_free_slab(&stateowner_slab);
@@ -1207,10 +1190,12 @@ move_to_close_lru(struct nfs4_stateowner *sop)
}
static int
-cmp_owner_str(struct nfs4_stateowner *sop, struct xdr_netobj *owner, clientid_t *clid) {
- return ((sop->so_owner.len == owner->len) &&
- !memcmp(sop->so_owner.data, owner->data, owner->len) &&
- (sop->so_client->cl_clientid.cl_id == clid->cl_id));
+same_owner_str(struct nfs4_stateowner *sop, struct xdr_netobj *owner,
+ clientid_t *clid)
+{
+ return (sop->so_owner.len == owner->len) &&
+ 0 == memcmp(sop->so_owner.data, owner->data, owner->len) &&
+ (sop->so_client->cl_clientid.cl_id == clid->cl_id);
}
static struct nfs4_stateowner *
@@ -1219,7 +1204,7 @@ find_openstateowner_str(unsigned int hashval, struct nfsd4_open *open)
struct nfs4_stateowner *so = NULL;
list_for_each_entry(so, &ownerstr_hashtbl[hashval], so_strhash) {
- if (cmp_owner_str(so, &open->op_owner, &open->op_clientid))
+ if (same_owner_str(so, &open->op_owner, &open->op_clientid))
return so;
}
return NULL;
@@ -1360,6 +1345,7 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
* lock) we know the server hasn't removed the lease yet, we know
* it's safe to take a reference: */
atomic_inc(&dp->dl_count);
+ atomic_inc(&dp->dl_client->cl_count);
spin_lock(&recall_lock);
list_add_tail(&dp->dl_recall_lru, &del_recall_lru);
@@ -1368,8 +1354,12 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
/* only place dl_time is set. protected by lock_kernel*/
dp->dl_time = get_seconds();
- /* XXX need to merge NFSD_LEASE_TIME with fs/locks.c:lease_break_time */
- fl->fl_break_time = jiffies + NFSD_LEASE_TIME * HZ;
+ /*
+ * We don't want the locks code to timeout the lease for us;
+ * we'll remove it ourself if the delegation isn't returned
+ * in time.
+ */
+ fl->fl_break_time = 0;
t = kthread_run(do_recall, dp, "%s", "nfs4_cb_recall");
if (IS_ERR(t)) {
@@ -1378,6 +1368,7 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
printk(KERN_INFO "NFSD: Callback thread failed for "
"for client (clientid %08x/%08x)\n",
clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
+ put_nfs4_client(dp->dl_client);
nfs4_put_delegation(dp);
}
}
@@ -1738,7 +1729,7 @@ out:
if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS
&& flag == NFS4_OPEN_DELEGATE_NONE
&& open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE)
- printk("NFSD: WARNING: refusing delegation reclaim\n");
+ dprintk("NFSD: WARNING: refusing delegation reclaim\n");
open->op_delegate_type = flag;
}
@@ -2147,7 +2138,7 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
*sopp = NULL;
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) {
- printk("NFSD: preprocess_seqid_op: magic stateid!\n");
+ dprintk("NFSD: preprocess_seqid_op: magic stateid!\n");
return nfserr_bad_stateid;
}
@@ -2181,25 +2172,24 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
lkflg = setlkflg(lock->lk_type);
if (lock->lk_is_new) {
- if (!sop->so_is_open_owner)
- return nfserr_bad_stateid;
- if (!cmp_clid(&clp->cl_clientid, lockclid))
+ if (!sop->so_is_open_owner)
+ return nfserr_bad_stateid;
+ if (!same_clid(&clp->cl_clientid, lockclid))
return nfserr_bad_stateid;
- /* stp is the open stateid */
- status = nfs4_check_openmode(stp, lkflg);
- if (status)
- return status;
- } else {
- /* stp is the lock stateid */
- status = nfs4_check_openmode(stp->st_openstp, lkflg);
- if (status)
- return status;
+ /* stp is the open stateid */
+ status = nfs4_check_openmode(stp, lkflg);
+ if (status)
+ return status;
+ } else {
+ /* stp is the lock stateid */
+ status = nfs4_check_openmode(stp->st_openstp, lkflg);
+ if (status)
+ return status;
}
-
}
if ((flags & CHECK_FH) && nfs4_check_fh(current_fh, stp)) {
- printk("NFSD: preprocess_seqid_op: fh-stateid mismatch!\n");
+ dprintk("NFSD: preprocess_seqid_op: fh-stateid mismatch!\n");
return nfserr_bad_stateid;
}
@@ -2215,22 +2205,22 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
goto check_replay;
if (sop->so_confirmed && flags & CONFIRM) {
- printk("NFSD: preprocess_seqid_op: expected"
+ dprintk("NFSD: preprocess_seqid_op: expected"
" unconfirmed stateowner!\n");
return nfserr_bad_stateid;
}
if (!sop->so_confirmed && !(flags & CONFIRM)) {
- printk("NFSD: preprocess_seqid_op: stateowner not"
+ dprintk("NFSD: preprocess_seqid_op: stateowner not"
" confirmed yet!\n");
return nfserr_bad_stateid;
}
if (stateid->si_generation > stp->st_stateid.si_generation) {
- printk("NFSD: preprocess_seqid_op: future stateid?!\n");
+ dprintk("NFSD: preprocess_seqid_op: future stateid?!\n");
return nfserr_bad_stateid;
}
if (stateid->si_generation < stp->st_stateid.si_generation) {
- printk("NFSD: preprocess_seqid_op: old stateid!\n");
+ dprintk("NFSD: preprocess_seqid_op: old stateid!\n");
return nfserr_old_stateid;
}
renew_client(sop->so_client);
@@ -2242,7 +2232,7 @@ check_replay:
/* indicate replay to calling function */
return nfserr_replay_me;
}
- printk("NFSD: preprocess_seqid_op: bad seqid (expected %d, got %d)\n",
+ dprintk("NFSD: preprocess_seqid_op: bad seqid (expected %d, got %d)\n",
sop->so_seqid, seqid);
*sopp = NULL;
return nfserr_bad_seqid;
@@ -2561,7 +2551,7 @@ find_lockstateowner_str(struct inode *inode, clientid_t *clid,
struct nfs4_stateowner *op;
list_for_each_entry(op, &lock_ownerstr_hashtbl[hashval], so_strhash) {
- if (cmp_owner_str(op, owner, clid))
+ if (same_owner_str(op, owner, clid))
return op;
}
return NULL;
@@ -2855,7 +2845,7 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
file_lock.fl_type = F_WRLCK;
break;
default:
- printk("NFSD: nfs4_lockt: bad lock type!\n");
+ dprintk("NFSD: nfs4_lockt: bad lock type!\n");
status = nfserr_inval;
goto out;
}
@@ -3025,7 +3015,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
INIT_LIST_HEAD(&matches);
for (i = 0; i < LOCK_HASH_SIZE; i++) {
list_for_each_entry(sop, &lock_ownerid_hashtbl[i], so_idhash) {
- if (!cmp_owner_str(sop, owner, clid))
+ if (!same_owner_str(sop, owner, clid))
continue;
list_for_each_entry(stp, &sop->so_stateids,
st_perstateowner) {
@@ -3149,11 +3139,14 @@ nfs4_check_open_reclaim(clientid_t *clid)
/* initialization to perform at module load time: */
-void
+int
nfs4_state_init(void)
{
- int i;
+ int i, status;
+ status = nfsd4_init_slabs();
+ if (status)
+ return status;
for (i = 0; i < CLIENT_HASH_SIZE; i++) {
INIT_LIST_HEAD(&conf_id_hashtbl[i]);
INIT_LIST_HEAD(&conf_str_hashtbl[i]);
@@ -3182,6 +3175,7 @@ nfs4_state_init(void)
for (i = 0; i < CLIENT_HASH_SIZE; i++)
INIT_LIST_HEAD(&reclaim_str_hashtbl[i]);
reclaim_str_hashtbl_size = 0;
+ return 0;
}
static void
@@ -3242,20 +3236,15 @@ __nfs4_state_start(void)
set_max_delegations();
}
-int
+void
nfs4_state_start(void)
{
- int status;
-
if (nfs4_init)
- return 0;
- status = nfsd4_init_slabs();
- if (status)
- return status;
+ return;
nfsd4_load_reboot_recovery_data();
__nfs4_state_start();
nfs4_init = 1;
- return 0;
+ return;
}
int
@@ -3313,7 +3302,6 @@ nfs4_state_shutdown(void)
nfs4_lock_state();
nfs4_release_reclaim();
__nfs4_state_shutdown();
- nfsd4_free_slabs();
nfs4_unlock_state();
}
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 8ef0964179bc..e15f2cf8ac15 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1475,7 +1475,8 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
err = vfs_getattr(exp->ex_mnt, dentry, &stat);
if (err)
goto out_nfserr;
- if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL)) ||
+ if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL |
+ FATTR4_WORD0_MAXNAME)) ||
(bmval1 & (FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE |
FATTR4_WORD1_SPACE_TOTAL))) {
err = vfs_statfs(dentry, &statfs);
@@ -1679,7 +1680,7 @@ out_acl:
if (bmval0 & FATTR4_WORD0_FILEID) {
if ((buflen -= 8) < 0)
goto out_resource;
- WRITE64((u64) stat.ino);
+ WRITE64(stat.ino);
}
if (bmval0 & FATTR4_WORD0_FILES_AVAIL) {
if ((buflen -= 8) < 0)
@@ -1721,7 +1722,7 @@ out_acl:
if (bmval0 & FATTR4_WORD0_MAXNAME) {
if ((buflen -= 4) < 0)
goto out_resource;
- WRITE32(~(u32) 0);
+ WRITE32(statfs.f_namelen);
}
if (bmval0 & FATTR4_WORD0_MAXREAD) {
if ((buflen -= 8) < 0)
@@ -1821,16 +1822,15 @@ out_acl:
WRITE32(stat.mtime.tv_nsec);
}
if (bmval1 & FATTR4_WORD1_MOUNTED_ON_FILEID) {
- struct dentry *mnt_pnt, *mnt_root;
-
if ((buflen -= 8) < 0)
goto out_resource;
- mnt_root = exp->ex_mnt->mnt_root;
- if (mnt_root->d_inode == dentry->d_inode) {
- mnt_pnt = exp->ex_mnt->mnt_mountpoint;
- WRITE64((u64) mnt_pnt->d_inode->i_ino);
- } else
- WRITE64((u64) stat.ino);
+ if (exp->ex_mnt->mnt_root->d_inode == dentry->d_inode) {
+ err = vfs_getattr(exp->ex_mnt->mnt_parent,
+ exp->ex_mnt->mnt_mountpoint, &stat);
+ if (err)
+ goto out_nfserr;
+ }
+ WRITE64(stat.ino);
}
*attrlenp = htonl((char *)p - (char *)attrlenp - 4);
*countp = p - buffer;
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index baac89d917ca..77dc9893b7ba 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -298,7 +298,7 @@ static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
* qword quoting is used, so filehandle will be \x....
*/
char *dname, *path;
- int maxsize;
+ int uninitialized_var(maxsize);
char *mesg = buf;
int len;
struct auth_domain *dom;
@@ -679,11 +679,13 @@ static int __init init_nfsd(void)
int retval;
printk(KERN_INFO "Installing knfsd (copyright (C) 1996 okir@monad.swb.de).\n");
+ retval = nfs4_state_init(); /* nfs4 locking state */
+ if (retval)
+ return retval;
nfsd_stat_init(); /* Statistics */
nfsd_cache_init(); /* RPC reply cache */
nfsd_export_init(); /* Exports table */
nfsd_lockd_init(); /* lockd->nfsd callbacks */
- nfs4_state_init(); /* NFSv4 locking state */
nfsd_idmap_init(); /* Name to ID mapping */
if (proc_mkdir("fs/nfs", NULL)) {
struct proc_dir_entry *entry;
@@ -712,6 +714,7 @@ static void __exit exit_nfsd(void)
nfsd_stat_shutdown();
nfsd_lockd_shutdown();
nfsd_idmap_shutdown();
+ nfsd4_free_slabs();
unregister_filesystem(&nfsd_fs_type);
}
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index a8c89ae4c743..1190aeaa92be 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -349,9 +349,7 @@ nfsd_svc(unsigned short port, int nrservs)
error = nfsd_racache_init(2*nrservs);
if (error<0)
goto out;
- error = nfs4_state_start();
- if (error<0)
- goto out;
+ nfs4_state_start();
nfsd_reset_versions();
@@ -546,10 +544,8 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
/* Now call the procedure handler, and encode NFS status. */
nfserr = proc->pc_func(rqstp, rqstp->rq_argp, rqstp->rq_resp);
nfserr = map_new_errors(rqstp->rq_vers, nfserr);
- if (nfserr == nfserr_jukebox && rqstp->rq_vers == 2)
- nfserr = nfserr_dropit;
if (nfserr == nfserr_dropit) {
- dprintk("nfsd: Dropping request due to malloc failure!\n");
+ dprintk("nfsd: Dropping request; may be revisited later\n");
nfsd_cache_update(rqstp, RC_NOCACHE, NULL);
return 0;
}
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index cb3e7fadb772..986f9b32083c 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -523,6 +523,10 @@ nfssvc_encode_entry(void *ccdv, const char *name,
cd->common.err = nfserr_toosmall;
return -EINVAL;
}
+ if (ino > ~((u32) 0)) {
+ cd->common.err = nfserr_fbig;
+ return -EINVAL;
+ }
*p++ = xdr_one; /* mark entry present */
*p++ = htonl((u32) ino); /* file id */
p = xdr_encode_array(p, name, namlen);/* name length & name */
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 7867151ebb83..cec78c82b1f9 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -295,7 +295,8 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
if (!iap->ia_valid)
goto out;
- /* NFSv2 does not differentiate between "set-[ac]time-to-now"
+ /*
+ * NFSv2 does not differentiate between "set-[ac]time-to-now"
* which only requires access, and "set-[ac]time-to-X" which
* requires ownership.
* So if it looks like it might be "set both to the same time which
@@ -308,25 +309,33 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
*/
#define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET)
#define MAX_TOUCH_TIME_ERROR (30*60)
- if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET
- && iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec
- ) {
- /* Looks probable. Now just make sure time is in the right ballpark.
- * Solaris, at least, doesn't seem to care what the time request is.
- * We require it be within 30 minutes of now.
- */
- time_t delta = iap->ia_atime.tv_sec - get_seconds();
- if (delta<0) delta = -delta;
- if (delta < MAX_TOUCH_TIME_ERROR &&
- inode_change_ok(inode, iap) != 0) {
- /* turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME
- * this will cause notify_change to set these times to "now"
+ if ((iap->ia_valid & BOTH_TIME_SET) == BOTH_TIME_SET &&
+ iap->ia_mtime.tv_sec == iap->ia_atime.tv_sec) {
+ /*
+ * Looks probable.
+ *
+ * Now just make sure time is in the right ballpark.
+ * Solaris, at least, doesn't seem to care what the time
+ * request is. We require it be within 30 minutes of now.
*/
- iap->ia_valid &= ~BOTH_TIME_SET;
- }
+ time_t delta = iap->ia_atime.tv_sec - get_seconds();
+ if (delta < 0)
+ delta = -delta;
+ if (delta < MAX_TOUCH_TIME_ERROR &&
+ inode_change_ok(inode, iap) != 0) {
+ /*
+ * Turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME.
+ * This will cause notify_change to set these times
+ * to "now"
+ */
+ iap->ia_valid &= ~BOTH_TIME_SET;
+ }
}
- /* The size case is special. It changes the file as well as the attributes. */
+ /*
+ * The size case is special.
+ * It changes the file as well as the attributes.
+ */
if (iap->ia_valid & ATTR_SIZE) {
if (iap->ia_size < inode->i_size) {
err = nfsd_permission(rqstp, fhp->fh_export, dentry, MAY_TRUNC|MAY_OWNER_OVERRIDE);