From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Tue, 6 Aug 2013 08:36:41 +0000 (+0900)
Subject: sched: Remove one division operation in find_busiest_queue()
X-Git-Tag: v3.12-rc1~167^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=95a79b805b935f4a7b685aa8a117d916c638323e;p=pandora-kernel.git

sched: Remove one division operation in find_busiest_queue()

Remove one division operation in find_busiest_queue() by using
crosswise multiplication:

	wl_i / power_i > wl_j / power_j :=
	wl_i * power_j > wl_j * power_i

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
[ Expanded the changelog. ]
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1375778203-31343-2-git-send-email-iamjoonsoo.kim@lge.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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