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H A Dnet_namespace.cdiff 3a765edadb28cc736d185f67d1ba6bedcc85f4b9 Wed Dec 02 20:29:06 CST 2009 Eric W. Biederman <ebiederm@xmission.com> netns: Add an explicit rcu_barrier to unregister_pernet_{device|subsys}

This allows namespace exit methods to batch work that comes requires an
rcu barrier using call_rcu without having to treat the
unregister_pernet_operations cases specially.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>