From: Jeff Moyer <jmoyer@redhat.com>
Date: Tue, 21 Apr 2009 05:31:56 +0000 (+0200)
Subject: cfq-iosched: use the default seek distance when there aren't enough seek samples
X-Git-Tag: v2.6.30-rc4~65^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=04dc6e71a28d4815bf9431efcafc107bb0ad2792;p=pandora-kernel.git

cfq-iosched: use the default seek distance when there aren't enough seek samples

If the cfq io context doesn't have enough samples yet to provide a mean
seek distance, then use the default threshold we have for seeky IO instead
of defaulting to 0.

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