commit 4bda4f250d21c3e4f2a2da5f4cef829a434a4046
author Pavel Emelyanov <xemul@openvz.org> Fri Dec 14 11:38:04 2007 -0800
committer David S. Miller <davem@davemloft.net> Mon Jan 28 14:58:07 2008 -0800
tree 2632bc368ceab622cf119ef5aee154617fe43f1c
parent 5e41fb83216d370d158fe17675af82d12c6c72c9

[XFRM]: Fix potential race vs xfrm_state(only)_find and xfrm_hash_resize.

The _find calls calculate the hash value using the
xfrm_state_hmask, without the xfrm_state_lock. But the
value of this mask can change in the _resize call under
the state_lock, so we risk to fail in finding the desired
entry in hash.

I think, that the hash value is better to calculate
under the state lock.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>