From: Shiyong Li <shi-yong.li@motorola.com>
Date: Mon, 12 Apr 2010 05:48:21 +0000 (+0800)
Subject: slab: Fix missing DEBUG_SLAB last user
X-Git-Tag: v2.6.35-rc1~421^2^4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c5e3b33b7cb959a401f823707bee006caadd76e;p=pandora-kernel.git

slab: Fix missing DEBUG_SLAB last user

Even with SLAB_RED_ZONE and SLAB_STORE_USER enabled, kernel would NOT store
redzone and last user data around allocated memory space if "arch cache line >
sizeof(unsigned long long)". As a result, last user information is unexpectedly
MISSED while dumping slab corruption log.

This fix makes sure that redzone and last user tags get stored unless the
required alignment breaks redzone's.

Signed-off-by: Shiyong Li <shi-yong.li@motorola.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
---

Reading git-diff-tree failed