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gre: convert hash tables locking to RCU
authorEric Dumazet <eric.dumazet@gmail.com>
Fri, 23 Oct 2009 06:14:38 +0000 (06:14 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sat, 24 Oct 2009 13:07:59 +0000 (06:07 -0700)
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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