From: Chen, Kenneth W <kenneth.w.chen@intel.com>
Date: Sun, 10 Dec 2006 10:20:36 +0000 (-0800)
Subject: [PATCH] sched: optimize activate_task for RT task
X-Git-Tag: v2.6.20-rc1~145^2~35
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=62ab616d54371a65f595c199aad1e1755b837d25;p=pandora-kernel.git

[PATCH] sched: optimize activate_task for RT task

RT task does not participate in interactiveness priority and thus shouldn't
be bothered with timestamp and p->sleep_type manipulation when task is
being put on run queue.  Bypass all of the them with a single if (rt_task)
test.

Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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