From: Sasha Levin <sasha.levin@oracle.com>
Date: Fri, 13 Dec 2013 15:54:22 +0000 (-0500)
Subject: net: unix: allow bind to fail on mutex lock
X-Git-Tag: v3.2.55~74
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2e737a8ace4d0ad5f15aec3fd4367282d0273321;p=pandora-kernel.git

net: unix: allow bind to fail on mutex lock

[ Upstream commit 37ab4fa7844a044dc21fde45e2a0fc2f3c3b6490 ]

This is similar to the set_peek_off patch where calling bind while the
socket is stuck in unix_dgram_recvmsg() will block and cause a hung task
spew after a while.

This is also the last place that did a straightforward mutex_lock(), so
there shouldn't be any more of these patches.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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