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Message-Id: <1344967816-1136-7-git-send-email-js1304@gmail.com>
Date:	Wed, 15 Aug 2012 03:10:16 +0900
From:	Joonsoo Kim <js1304@...il.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Joonsoo Kim <js1304@...il.com>
Subject: [PATCH v2 6/6] workqueue: use system_highpri_wq for unbind_work

To speed cpu down processing up, use system_highpri_wq.
As scheduling priority of workers on it is higher than system_wq and
it is not contended by other normal works on this cpu, work on it
is processed faster than system_wq.

Signed-off-by: Joonsoo Kim <js1304@...il.com>

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 4c5733c1..fa5ec4c 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3671,7 +3671,7 @@ static int __devinit workqueue_cpu_down_callback(struct notifier_block *nfb,
 	case CPU_DOWN_PREPARE:
 		/* unbinding should happen on the local CPU */
 		INIT_WORK_ONSTACK(&unbind_work, gcwq_unbind_fn);
-		schedule_work_on(cpu, &unbind_work);
+		queue_work_on(cpu, system_highpri_wq, &unbind_work);
 		flush_work(&unbind_work);
 		break;
 	}
-- 
1.7.9.5

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