From: Darren Hart <dvhart@linux.intel.com>
Date: Tue, 22 Feb 2011 21:04:33 +0000 (-0800)
Subject: sched: Allow SCHED_BATCH to preempt SCHED_IDLE tasks
X-Git-Tag: v2.6.39-rc1~509^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2f5c9ab79f78e8b91ac993e0543d65b661dd19b;p=pandora-kernel.git

sched: Allow SCHED_BATCH to preempt SCHED_IDLE tasks

Perform the test for SCHED_IDLE before testing for SCHED_BATCH (and
ensure idle tasks don't preempt idle tasks) so the non-interactive,
but still important, SCHED_BATCH tasks will run in favor of the very
low priority SCHED_IDLE tasks.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Mike Galbraith <efault@gmx.de>
Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
LKML-Reference: <1298408674-3130-2-git-send-email-dvhart@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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