From: Christoph Lameter <clameter@sgi.com>
Date: Sun, 10 Dec 2006 10:20:13 +0000 (-0800)
Subject: [PATCH] sched: avoid taking rq lock in wake_priority_sleeper
X-Git-Tag: v2.6.20-rc1~145^2~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=571f6d2fb0b1c04798df783db2ba85e96bcce43d;p=pandora-kernel.git

[PATCH] sched: avoid taking rq lock in wake_priority_sleeper

Avoid taking the request queue lock in wake_priority_sleeper if there are no
running processes.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Peter Williams <pwil3058@bigpond.net.au>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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