tree 6ad78b44cd7fc5d65a0c3bded49f8cb14f4790a9
parent c2553b5844b06910435e40cfab9e6f384840cb97
author Jens Axboe <jens.axboe@oracle.com> 1240553539 +0200
committer Jens Axboe <jens.axboe@oracle.com> 1240897057 +0200

block: include discard requests in IO accounting

We currently don't do merging on discard requests, but we potentially
could. If we do, then we need to include discard requests in the IO
accounting, or merging would end up decrementing in_flight IO counters
for an IO which never incremented them.

So enable accounting for discard requests.

Problem found by Nikanth Karthikesan <knikanth@suse.de>

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