From c553f8e335c00a7cff3ab3f13e793b13d3f2207f Mon Sep 17 00:00:00 2001
From: Shaohua Li <shaohua.li@intel.com>
Date: Fri, 14 Jan 2011 08:41:03 +0100
Subject: [PATCH] block cfq: compensate preempted queue even if it has no slice
 assigned

If a queue is preempted before it gets slice assigned, the queue doesn't get
compensation, which looks unfair. For such queue, we compensate it for a whole
slice.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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