From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 23 Oct 2009 06:14:38 +0000 (+0000)
Subject: gre: convert hash tables locking to RCU
X-Git-Tag: v2.6.33-rc1~388^2~706
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d5b2c084d2e71587e30a6ef528a8a8051e59dcd;p=pandora-kernel.git

gre: convert hash tables locking to RCU

GRE tunnels use one rwlock to protect their hash tables.

This locking scheme can be converted to RCU for free, since netdevice
already must wait for a RCU grace period at dismantle time.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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