From: Jeff Moyer <jmoyer@redhat.com>
Date: Tue, 21 Apr 2009 05:25:04 +0000 (+0200)
Subject: cfq-iosched: make seek_mean converge more quickly
X-Git-Tag: v2.6.30-rc4~65^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d00aa47e2337dcfe2d8a7215dbde3765b507167;p=pandora-kernel.git

cfq-iosched: make seek_mean converge more quickly

Right now, depending on the first sector to which a process issues I/O,
the seek time may start out way out of whack. So make sure we start
with 0 sectors in seek, instead of the offset of the first request
issued.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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