From: Christoph Lameter <clameter@engr.sgi.com>
Date: Wed, 22 Mar 2006 08:09:07 +0000 (-0800)
Subject: [PATCH] slab: fix drain_array() so that it works correctly with the shared_array
X-Git-Tag: v2.6.17-rc1~1129^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b18e7e654d7af741d2bf34a90dc34128d0217fea;p=pandora-kernel.git

[PATCH] slab: fix drain_array() so that it works correctly with the shared_array

The list_lock also protects the shared array and we call drain_array() with
the shared array.  Therefore we cannot go as far as I wanted to but have to
take the lock in a way so that it also protects the array_cache in
drain_pages.

(Note: maybe we should make the array_cache locking more consistent?  I.e.
always take the array cache lock for shared arrays and disable interrupts
for the per cpu arrays?)

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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