From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Fri, 16 Jan 2009 08:32:25 +0000 (+0800)
Subject: trace_workqueue: use percpu data for workqueue stat
X-Git-Tag: v2.6.30-rc1~2^2~157^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3690b5e6fd9daa030039ae9bda69044228bd476d;p=pandora-kernel.git

trace_workqueue: use percpu data for workqueue stat

Impact: use percpu data instead of a global structure

Use:

   static DEFINE_PER_CPU(struct workqueue_global_stats, all_workqueue_stat);

instead of allocating a global structure.

percpu data also works well on NUMA.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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