From: Jerome Marchand <jmarchan@redhat.com>
Date: Fri, 27 Mar 2009 09:31:51 +0000 (+0100)
Subject: block: fix inconsistency in I/O stat accounting code
X-Git-Tag: v2.6.30-rc1~6^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26308eab69aa193f7b3fb50764a64ae14544a39b;p=pandora-kernel.git

block: fix inconsistency in I/O stat accounting code

This forces in_flight to be zero when turning off or on the I/O stat
accounting and stops updating I/O stats in attempt_merge() when
accounting is turned off.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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