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(parent: 84a035f) | patch
ipv4: fix possible seqlock deadlock
authorEric Dumazet <edumazet@google.com>
Thu, 14 Nov 2013 21:37:54 +0000 (13:37 -0800)
committerDavid S. Miller <davem@davemloft.net>
Thu, 14 Nov 2013 22:31:14 +0000 (17:31 -0500)
commitc9e9042994d37cbc1ee538c500e9da1bb9d1bcdf
tree6f4f8ea5fd922fa8fa3cfa87b17d2abcadab02d3tree
parent84a035f6940fbabef0826f4fabdd59ec8e131b81commit | diff
ipv4: fix possible seqlock deadlock

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>
net/ipv4/datagram.c diff | blob | history
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