From b9d8f4c73b1af4cfd53f819bf84c2bce31232275 Mon Sep 17 00:00:00 2001
From: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Date: Tue, 8 Dec 2009 08:54:17 +0100
Subject: [PATCH] cfq: Optimization for close cooperating queue searching

It doesn't make any sense to try to find out a close cooperating
queue if current cfqq is the only one in the group.

Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Reading git-format-patch failed