Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  ariadne: remove redundant NULL check
  ip6ip6: autoload ip6 tunnel
  net: bridge builtin vs. ipv6 modular
  ipv6: Don't create clones of host routes.
  pktgen: fix errata in show results
  ipv4: Fix erroneous uses of ifa_address.
  vxge: update MAINTAINERS
  r6040: bump to version 0.27 and date 23Feb2011
  r6040: fix multicast operations
  rds: prevent BUG_ON triggering on congestion map updates
  bonding 802.3ad: Rename rx_machine_lock to state_machine_lock
  bonding 802.3ad: Fix the state machine locking v2
  drivers/net/macvtap: fix error check
  net: fix multithreaded signal handling in unix recv routines
  net: Enter net/ipv6/ even if CONFIG_IPV6=n
  net/smsc911x.c: Set the VLAN1 register to fix VLAN MTU problem
  bnx2x: fix MaxBW configuration
  bnx2x: (NPAR) prevent HW access in D3 state
  bnx2x: fix link notification
  bnx2x: fix non-pmf device load flow

Doing my first --no-ff merge here, to get the explicit merge commit.

David did a back-merge in order to get commit 8909c9ad8ff0 ("net: don't
allow CAP_NET_ADMIN to load non-netdev kernel modules") so that we can
add Stephen Hemminger's fix to handle ip6 tunnels as well, which uses
the MODULE_ALIAS_NETDEV() macro created by that change.

1 files changed, 13 insertions, 4 deletions

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index dd419d286204..437a99e560e1 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1724,7 +1724,11 @@ 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) {
@@ -1864,7 +1868,11 @@ 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;
@@ -1895,11 +1903,12 @@ 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);