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blkio: Set must_dispatch only if we decided to not dispatch the request

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o must_dispatch flag should be set only if we decided not to run the queue
  and dispatch the request.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Vivek Goyal 2009-12-03 12:59:37 -05:00 committed by Jens Axboe
parent 753c89130c
commit bf79193710
1 changed files with 3 additions and 3 deletions
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6
block/cfq-iosched.c
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@ -2490,9 +2490,9 @@ cfq_rq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq,
if (blk_rq_bytes(rq) > PAGE_CACHE_SIZE ||
cfqd->busy_queues > 1) {
del_timer(&cfqd->idle_slice_timer);
__blk_run_queue(cfqd->queue);
}
cfq_mark_cfqq_must_dispatch(cfqq);
__blk_run_queue(cfqd->queue);
} else
cfq_mark_cfqq_must_dispatch(cfqq);
}
} else if (cfq_should_preempt(cfqd, cfqq, rq)) {
/*