tree 3633c759d096b6fccc50e5641b1dcf8633a1dbf5
parent 56f047305dd4b6b61771ac4f523718e4111052a8
author Eric Dumazet <edumazet@google.com> 1449588122 -0800
committer David S. Miller <davem@davemloft.net> 1449879726 -0500

xfrm: add rcu protection to sk->sk_policy[]

XFRM can deal with SYNACK messages, sent while listener socket
is not locked. We add proper rcu protection to __xfrm_sk_clone_policy()
and xfrm_sk_policy_lookup()

This might serve as the first step to remove xfrm.xfrm_policy_lock
use in fast path.

Fixes: fa76ce7328b2 ("inet: get rid of central tcp/dccp listener timer")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>