linux-kernel - [PATCH] remove noop in workqueue

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Message-ID: <AANLkTi=8yR1cQOTF5_0xebNAemrrgmqEpuGTyNENUXPm@mail.gmail.com>
Date:	Fri, 17 Dec 2010 20:56:35 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH] remove noop in workqueue

Checking WORKER_NOT_RUNNING in the flags word of worker is unnecessary
if it is set in the flags parameter.

Signed-off-by: Hillf Danton <dhillf@...il.com>
---

--- a/kernel/workqueue.c	2010-11-01 19:54:12.000000000 +0800
+++ b/kernel/workqueue.c	2010-12-17 20:57:00.000000000 +0800
@@ -770,7 +770,6 @@ static inline void worker_clr_flags(stru

 	/* if transitioning out of NOT_RUNNING, increment nr_running */
 	if ((flags & WORKER_NOT_RUNNING) && (oflags & WORKER_NOT_RUNNING))
-		if (!(worker->flags & WORKER_NOT_RUNNING))
 			atomic_inc(get_gcwq_nr_running(gcwq->cpu));
 }
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