From 5bfe53a77e8a3ffce4a10003c75f464a138e272d Mon Sep 17 00:00:00 2001
From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Thu, 10 Mar 2011 15:22:24 +0800
Subject: [PATCH] slab,rcu: don't assume the size of struct rcu_head

The size of struct rcu_head may be changed. When it becomes larger,
it may pollute the data after struct slab.

Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
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