From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Tue, 17 Feb 2009 03:46:42 +0000 (+0800)
Subject: x86: use percpu data for 4k hardirq and softirq stacks
X-Git-Tag: v2.6.30-rc1~2^2~50^2~19^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=42f8faecf7a88371de0f30aebb052d1ae51762c0;p=pandora-kernel.git

x86: use percpu data for 4k hardirq and softirq stacks

Impact: economize memory for large NR_CPUS

percpu data is setup earlier than irq, we can use percpu data
to economize memory.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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