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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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