tree 4dd97b3090d314b42f793a48251497f34835a5e8
parent 33b07db9f38fe73b3895f8d4db8fdee03e3afec3
author Johannes Weiner <hannes@saeurebad.de> 1228096835 +0100
committer Linus Torvalds <torvalds@linux-foundation.org> 1228147086 -0800

vmscan: protect zone rotation stats by lru lock

The zone's rotation statistics must not be accessed without the
corresponding LRU lock held.  Fix an unprotected write in
shrink_active_list().

Acked-by: Rik van Riel <riel@redhat.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>