tree d1d458d78b6fffa32558ffbf7cdfc49a316a660c
parent 2757a15f08adbed9480c30bdb4e9a0bbf2b6f33a
author Eric Dumazet <eric.dumazet@gmail.com> 1290517935 +0000
committer David S. Miller <davem@davemloft.net> 1290626202 -0800

ipv6: mcast: RCU conversion

ipv6_sk_mc_lock rwlock becomes a spinlock.

readers (inet6_mc_check()) now takes rcu_read_lock() instead of read
lock. Writers dont need to disable BH anymore.

struct ipv6_mc_socklist objects are reclaimed after one RCU grace
period.

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