linux-kernel - [PATCH 2.6.26-rc3 : schedule] remove unlikely macros in workqueue.c/queue_delayed_work

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Date:	Thu, 29 May 2008 00:02:50 -0700 (PDT)
From:	youquan_song@...ux.intel.com
To:	linux-kernel@...r.kernel.org
Cc:	venkatesh.pallipadi@...el.com
Subject: [PATCH 2.6.26-rc3 : schedule] remove unlikely macros in 
     workqueue.c/queue_delayed_work_on

cpufreq_ondemand governor call queue_delayed_work_on with entry parameter
"cpu" every sample rate(every logical cpu during 20ms).check the value of
"cpu","cpu>=0" condition meeting rate is over than 90%.

This patch remove the unlikely macros to benefit kernel schedule and
reader comprehension.

Signed-off-by: Youquan Song <youquan.song@...el.com>
---
 workqueue.c    |    2++++++
 1 file changed,     1 insertions(+), 1 deletions(-)

--- linux-2.6/kernel/workqueue.c	2008-05-13 10:10:11.000000000 -0400
+++ linux-2.6-new/kernel/workqueue.c	2008-05-29 09:46:16.000000000 -0400
@@ -230,7 +230,7 @@
		timer->data = (unsigned long)dwork;
		timer->function = delayed_work_timer_fn;

-		if (unlikely(cpu >= 0))
+		if (cpu >= 0)
			add_timer_on(timer, cpu);
		else
			add_timer(timer);

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