From c5b680f3b7593f2b066c683df799d19f807fb23d Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Fri, 19 Jan 2007 11:56:49 +1100
Subject: [PATCH] cfq-iosched: account for slice over/under time

If a slice uses less than it is entitled to (or perhaps more), include
that in the decision on how much time to give it the next time it
gets serviced.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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