From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 10 Jul 2009 12:57:57 +0000 (+0200)
Subject: sched: optimize cond_resched()
X-Git-Tag: v2.6.31-rc3~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d86ee4809d0329d4aa0d0f2c76c2295a16862799;p=pandora-kernel.git

sched: optimize cond_resched()

Optimize cond_resched() by removing one conditional.

Currently cond_resched() checks system_state ==
SYSTEM_RUNNING in order to avoid scheduling before the
scheduler is running.

We can however, as per suggestion of Matt, use
PREEMPT_ACTIVE to accomplish that very same.

Suggested-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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