From: Eric Dumazet <edumazet@google.com>
Date: Thu, 14 Nov 2013 21:37:54 +0000 (-0800)
Subject: ipv4: fix possible seqlock deadlock
X-Git-Tag: v3.2.54~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b4a3a7250034edd8c2d9096be4c082a747823a6;p=pandora-kernel.git

ipv4: fix possible seqlock deadlock

[ Upstream commit c9e9042994d37cbc1ee538c500e9da1bb9d1bcdf ]

ip4_datagram_connect() being called from process context,
it should use IP_INC_STATS() instead of IP_INC_STATS_BH()
otherwise we can deadlock on 32bit arches, or get corruptions of
SNMP counters.

Fixes: 584bdf8cbdf6 ("[IPV4]: Fix "ipOutNoRoutes" counter error for TCP and UDP")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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