From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Fri, 3 Feb 2012 10:20:04 +0000 (+0100)
Subject: Btrfs: set ioprio of scrub readahead to idle
X-Git-Tag: v3.5-rc1~17^2~1^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3d136a1131c66f7d26fb171e4c5b0b8baacd3129;p=pandora-kernel.git

Btrfs: set ioprio of scrub readahead to idle

Reduce ioprio class of scrub readahead threads to idle priority.
This setting is fixed. This priority has shown the best performance
during all measurements.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
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