From: Jens Axboe <jens.axboe@oracle.com>
Date: Fri, 23 Jan 2009 09:54:44 +0000 (+0100)
Subject: block: add sysfs file for controlling io stats accounting
X-Git-Tag: v2.6.29-rc4~90^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc58ba9468d94d62c56ab9b47173583ec140b165;p=pandora-kernel.git

block: add sysfs file for controlling io stats accounting

This allows us to turn off disk stat accounting completely, for the cases
where the 0.5-1% reduction in system time is important.

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