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-rw-r--r--net/Makefile4
-rw-r--r--net/bridge/Kconfig1
-rw-r--r--net/ceph/messenger.c71
-rw-r--r--net/ceph/pagevec.c18
-rw-r--r--net/core/dev.c12
-rw-r--r--net/core/pktgen.c2
-rw-r--r--net/ipv4/devinet.c6
-rw-r--r--net/ipv4/ip_gre.c2
-rw-r--r--net/ipv4/ipip.c2
-rw-r--r--net/ipv6/ip6_tunnel.c1
-rw-r--r--net/ipv6/route.c4
-rw-r--r--net/ipv6/sit.c2
-rw-r--r--net/rds/ib_send.c5
-rw-r--r--net/rds/loop.c11
-rw-r--r--net/unix/af_unix.c17
15 files changed, 115 insertions, 43 deletions
diff --git a/net/Makefile b/net/Makefile
index a3330ebe2c53..a51d9465e628 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -19,9 +19,7 @@ obj-$(CONFIG_NETFILTER) += netfilter/
obj-$(CONFIG_INET) += ipv4/
obj-$(CONFIG_XFRM) += xfrm/
obj-$(CONFIG_UNIX) += unix/
-ifneq ($(CONFIG_IPV6),)
-obj-y += ipv6/
-endif
+obj-$(CONFIG_NET) += ipv6/
obj-$(CONFIG_PACKET) += packet/
obj-$(CONFIG_NET_KEY) += key/
obj-$(CONFIG_BRIDGE) += bridge/
diff --git a/net/bridge/Kconfig b/net/bridge/Kconfig
index 9190ae462cb4..6dee7bf648a9 100644
--- a/net/bridge/Kconfig
+++ b/net/bridge/Kconfig
@@ -6,6 +6,7 @@ config BRIDGE
tristate "802.1d Ethernet Bridging"
select LLC
select STP
+ depends on IPV6 || IPV6=n
---help---
If you say Y here, then your Linux box will be able to act as an
Ethernet bridge, which means that the different Ethernet segments it
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 35b36b86d762..05f357828a2f 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -336,7 +336,6 @@ static void reset_connection(struct ceph_connection *con)
ceph_msg_put(con->out_msg);
con->out_msg = NULL;
}
- con->out_keepalive_pending = false;
con->in_seq = 0;
con->in_seq_acked = 0;
}
@@ -1248,8 +1247,6 @@ static int process_connect(struct ceph_connection *con)
con->auth_retry);
if (con->auth_retry == 2) {
con->error_msg = "connect authorization failure";
- reset_connection(con);
- set_bit(CLOSED, &con->state);
return -1;
}
con->auth_retry = 1;
@@ -1715,14 +1712,6 @@ more:
/* open the socket first? */
if (con->sock == NULL) {
- /*
- * if we were STANDBY and are reconnecting _this_
- * connection, bump connect_seq now. Always bump
- * global_seq.
- */
- if (test_and_clear_bit(STANDBY, &con->state))
- con->connect_seq++;
-
prepare_write_banner(msgr, con);
prepare_write_connect(msgr, con, 1);
prepare_read_banner(con);
@@ -1951,7 +1940,24 @@ static void con_work(struct work_struct *work)
work.work);
mutex_lock(&con->mutex);
+ if (test_and_clear_bit(BACKOFF, &con->state)) {
+ dout("con_work %p backing off\n", con);
+ if (queue_delayed_work(ceph_msgr_wq, &con->work,
+ round_jiffies_relative(con->delay))) {
+ dout("con_work %p backoff %lu\n", con, con->delay);
+ mutex_unlock(&con->mutex);
+ return;
+ } else {
+ con->ops->put(con);
+ dout("con_work %p FAILED to back off %lu\n", con,
+ con->delay);
+ }
+ }
+ if (test_bit(STANDBY, &con->state)) {
+ dout("con_work %p STANDBY\n", con);
+ goto done;
+ }
if (test_bit(CLOSED, &con->state)) { /* e.g. if we are replaced */
dout("con_work CLOSED\n");
con_close_socket(con);
@@ -2008,10 +2014,12 @@ static void ceph_fault(struct ceph_connection *con)
/* Requeue anything that hasn't been acked */
list_splice_init(&con->out_sent, &con->out_queue);
- /* If there are no messages in the queue, place the connection
- * in a STANDBY state (i.e., don't try to reconnect just yet). */
- if (list_empty(&con->out_queue) && !con->out_keepalive_pending) {
- dout("fault setting STANDBY\n");
+ /* If there are no messages queued or keepalive pending, place
+ * the connection in a STANDBY state */
+ if (list_empty(&con->out_queue) &&
+ !test_bit(KEEPALIVE_PENDING, &con->state)) {
+ dout("fault %p setting STANDBY clearing WRITE_PENDING\n", con);
+ clear_bit(WRITE_PENDING, &con->state);
set_bit(STANDBY, &con->state);
} else {
/* retry after a delay. */
@@ -2019,11 +2027,24 @@ static void ceph_fault(struct ceph_connection *con)
con->delay = BASE_DELAY_INTERVAL;
else if (con->delay < MAX_DELAY_INTERVAL)
con->delay *= 2;
- dout("fault queueing %p delay %lu\n", con, con->delay);
con->ops->get(con);
if (queue_delayed_work(ceph_msgr_wq, &con->work,
- round_jiffies_relative(con->delay)) == 0)
+ round_jiffies_relative(con->delay))) {
+ dout("fault queued %p delay %lu\n", con, con->delay);
+ } else {
con->ops->put(con);
+ dout("fault failed to queue %p delay %lu, backoff\n",
+ con, con->delay);
+ /*
+ * In many cases we see a socket state change
+ * while con_work is running and end up
+ * queuing (non-delayed) work, such that we
+ * can't backoff with a delay. Set a flag so
+ * that when con_work restarts we schedule the
+ * delay then.
+ */
+ set_bit(BACKOFF, &con->state);
+ }
}
out_unlock:
@@ -2094,6 +2115,19 @@ void ceph_messenger_destroy(struct ceph_messenger *msgr)
}
EXPORT_SYMBOL(ceph_messenger_destroy);
+static void clear_standby(struct ceph_connection *con)
+{
+ /* come back from STANDBY? */
+ if (test_and_clear_bit(STANDBY, &con->state)) {
+ mutex_lock(&con->mutex);
+ dout("clear_standby %p and ++connect_seq\n", con);
+ con->connect_seq++;
+ WARN_ON(test_bit(WRITE_PENDING, &con->state));
+ WARN_ON(test_bit(KEEPALIVE_PENDING, &con->state));
+ mutex_unlock(&con->mutex);
+ }
+}
+
/*
* Queue up an outgoing message on the given connection.
*/
@@ -2126,6 +2160,7 @@ void ceph_con_send(struct ceph_connection *con, struct ceph_msg *msg)
/* if there wasn't anything waiting to send before, queue
* new work */
+ clear_standby(con);
if (test_and_set_bit(WRITE_PENDING, &con->state) == 0)
queue_con(con);
}
@@ -2191,6 +2226,8 @@ void ceph_con_revoke_message(struct ceph_connection *con, struct ceph_msg *msg)
*/
void ceph_con_keepalive(struct ceph_connection *con)
{
+ dout("con_keepalive %p\n", con);
+ clear_standby(con);
if (test_and_set_bit(KEEPALIVE_PENDING, &con->state) == 0 &&
test_and_set_bit(WRITE_PENDING, &con->state) == 0)
queue_con(con);
diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c
index 1a040e64c69f..cd9c21df87d1 100644
--- a/net/ceph/pagevec.c
+++ b/net/ceph/pagevec.c
@@ -16,22 +16,30 @@ struct page **ceph_get_direct_page_vector(const char __user *data,
int num_pages, bool write_page)
{
struct page **pages;
- int rc;
+ int got = 0;
+ int rc = 0;
pages = kmalloc(sizeof(*pages) * num_pages, GFP_NOFS);
if (!pages)
return ERR_PTR(-ENOMEM);
down_read(&current->mm->mmap_sem);
- rc = get_user_pages(current, current->mm, (unsigned long)data,
- num_pages, write_page, 0, pages, NULL);
+ while (got < num_pages) {
+ rc = get_user_pages(current, current->mm,
+ (unsigned long)data + ((unsigned long)got * PAGE_SIZE),
+ num_pages - got, write_page, 0, pages + got, NULL);
+ if (rc < 0)
+ break;
+ BUG_ON(rc == 0);
+ got += rc;
+ }
up_read(&current->mm->mmap_sem);
- if (rc < num_pages)
+ if (rc < 0)
goto fail;
return pages;
fail:
- ceph_put_page_vector(pages, rc > 0 ? rc : 0, false);
+ ceph_put_page_vector(pages, got, false);
return ERR_PTR(rc);
}
EXPORT_SYMBOL(ceph_get_direct_page_vector);
diff --git a/net/core/dev.c b/net/core/dev.c
index 9f66de9c0572..0d39032e9621 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1115,13 +1115,21 @@ EXPORT_SYMBOL(netdev_bonding_change);
void dev_load(struct net *net, const char *name)
{
struct net_device *dev;
+ int no_module;
rcu_read_lock();
dev = dev_get_by_name_rcu(net, name);
rcu_read_unlock();
- if (!dev && capable(CAP_NET_ADMIN))
- request_module("%s", name);
+ no_module = !dev;
+ if (no_module && capable(CAP_NET_ADMIN))
+ no_module = request_module("netdev-%s", name);
+ if (no_module && capable(CAP_SYS_MODULE)) {
+ if (!request_module("%s", name))
+ pr_err("Loading kernel module for a network device "
+"with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s "
+"instead\n", name);
+ }
}
EXPORT_SYMBOL(dev_load);
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index d73b77adb676..f0aec6c39ecd 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -3271,7 +3271,7 @@ static void show_results(struct pktgen_dev *pkt_dev, int nr_frags)
pkt_dev->started_at);
ktime_t idle = ns_to_ktime(pkt_dev->idle_acc);
- p += sprintf(p, "OK: %llu(c%llu+d%llu) nsec, %llu (%dbyte,%dfrags)\n",
+ p += sprintf(p, "OK: %llu(c%llu+d%llu) usec, %llu (%dbyte,%dfrags)\n",
(unsigned long long)ktime_to_us(elapsed),
(unsigned long long)ktime_to_us(ktime_sub(elapsed, idle)),
(unsigned long long)ktime_to_us(idle),
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index ff53860d1e56..6d85800daeb7 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -741,7 +741,7 @@ int devinet_ioctl(struct net *net, unsigned int cmd, void __user *arg)
ifap = &ifa->ifa_next) {
if (!strcmp(ifr.ifr_name, ifa->ifa_label) &&
sin_orig.sin_addr.s_addr ==
- ifa->ifa_address) {
+ ifa->ifa_local) {
break; /* found */
}
}
@@ -1112,8 +1112,8 @@ static void inetdev_send_gratuitous_arp(struct net_device *dev,
return;
arp_send(ARPOP_REQUEST, ETH_P_ARP,
- ifa->ifa_address, dev,
- ifa->ifa_address, NULL,
+ ifa->ifa_local, dev,
+ ifa->ifa_local, NULL,
dev->dev_addr, NULL);
}
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index f9af98dd7561..71465955520b 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1766,4 +1766,4 @@ module_exit(ipgre_fini);
MODULE_LICENSE("GPL");
MODULE_ALIAS_RTNL_LINK("gre");
MODULE_ALIAS_RTNL_LINK("gretap");
-MODULE_ALIAS("gre0");
+MODULE_ALIAS_NETDEV("gre0");
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index e1e17576baa6..65008f45addc 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -914,4 +914,4 @@ static void __exit ipip_fini(void)
module_init(ipip_init);
module_exit(ipip_fini);
MODULE_LICENSE("GPL");
-MODULE_ALIAS("tunl0");
+MODULE_ALIAS_NETDEV("tunl0");
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 02730ef26b0f..ea8d5e8128a9 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -57,6 +57,7 @@
MODULE_AUTHOR("Ville Nuorvala");
MODULE_DESCRIPTION("IPv6 tunneling device");
MODULE_LICENSE("GPL");
+MODULE_ALIAS_NETDEV("ip6tnl0");
#ifdef IP6_TNL_DEBUG
#define IP6_TNL_TRACE(x...) printk(KERN_DEBUG "%s:" x "\n", __func__)
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index d55d00c2a824..001276055a6b 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -783,8 +783,10 @@ restart:
if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP))
nrt = rt6_alloc_cow(rt, &fl->fl6_dst, &fl->fl6_src);
- else
+ else if (!(rt->dst.flags & DST_HOST))
nrt = rt6_alloc_clone(rt, &fl->fl6_dst);
+ else
+ goto out2;
dst_release(&rt->dst);
rt = nrt ? : net->ipv6.ip6_null_entry;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index b8c8adbd7cf6..3534ceaa4fba 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1295,4 +1295,4 @@ static int __init sit_init(void)
module_init(sit_init);
module_exit(sit_cleanup);
MODULE_LICENSE("GPL");
-MODULE_ALIAS("sit0");
+MODULE_ALIAS_NETDEV("sit0");
diff --git a/net/rds/ib_send.c b/net/rds/ib_send.c
index 71f373c421bc..c47a511f203d 100644
--- a/net/rds/ib_send.c
+++ b/net/rds/ib_send.c
@@ -551,7 +551,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
if (conn->c_loopback
&& rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ scat = &rm->data.op_sg[sg];
+ ret = sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, scat->length - conn->c_xmit_data_off);
+ return ret;
}
/* FIXME we may overallocate here */
diff --git a/net/rds/loop.c b/net/rds/loop.c
index aeec1d483b17..bca6761a3ca2 100644
--- a/net/rds/loop.c
+++ b/net/rds/loop.c
@@ -61,10 +61,15 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
unsigned int hdr_off, unsigned int sg,
unsigned int off)
{
+ struct scatterlist *sgp = &rm->data.op_sg[sg];
+ int ret = sizeof(struct rds_header) +
+ be32_to_cpu(rm->m_inc.i_hdr.h_len);
+
/* Do not send cong updates to loopback */
if (rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
- return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
+ ret = min_t(int, ret, sgp->length - conn->c_xmit_data_off);
+ goto out;
}
BUG_ON(hdr_off || sg || off);
@@ -80,8 +85,8 @@ static int rds_loop_xmit(struct rds_connection *conn, struct rds_message *rm,
NULL);
rds_inc_put(&rm->m_inc);
-
- return sizeof(struct rds_header) + be32_to_cpu(rm->m_inc.i_hdr.h_len);
+out:
+ return ret;
}
/*
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index df5997d25826..de870184e457 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1728,7 +1728,11 @@ static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
msg->msg_namelen = 0;
- mutex_lock(&u->readlock);
+ err = mutex_lock_interruptible(&u->readlock);
+ if (err) {
+ err = sock_intr_errno(sock_rcvtimeo(sk, noblock));
+ goto out;
+ }
skb = skb_recv_datagram(sk, flags, noblock, &err);
if (!skb) {
@@ -1868,7 +1872,11 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
memset(&tmp_scm, 0, sizeof(tmp_scm));
}
- mutex_lock(&u->readlock);
+ err = mutex_lock_interruptible(&u->readlock);
+ if (err) {
+ err = sock_intr_errno(timeo);
+ goto out;
+ }
do {
int chunk;
@@ -1899,11 +1907,12 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
timeo = unix_stream_data_wait(sk, timeo);
- if (signal_pending(current)) {
+ if (signal_pending(current)
+ || mutex_lock_interruptible(&u->readlock)) {
err = sock_intr_errno(timeo);
goto out;
}
- mutex_lock(&u->readlock);
+
continue;
unlock:
unix_state_unlock(sk);
generated by cgit v1.2.3 (git 2.0.4) at 2024-12-29 12:32:08 +0000