From: Eric Dumazet <edumazet@google.com>
Date: Tue, 17 Jul 2012 20:42:13 +0000 (+0200)
Subject: ipv4: fix rcu splat
X-Git-Tag: v3.6-rc1~125^2~122
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5abf7f7e0f6bdbfcac737f636497d7016d9507eb;p=pandora-kernel.git

ipv4: fix rcu splat

free_nh_exceptions() should use rcu_dereference_protected(..., 1)
since its called after one RCU grace period.

Also add some const-ification in recent code.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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