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cfq-iosched: slice offset should take ioprio into account 

Use the max_slice-cur_slice as the multipler for the insertion offset.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2007-04-20 14:18:00 +02:00 committed by Jens Axboe
parent 498d3aa2b4
commit 67e6b49e39
1 changed files with 2 additions and 1 deletions
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3
block/cfq-iosched.c
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@ -442,7 +442,8 @@ static unsigned long cfq_slice_offset(struct cfq_data *cfqd,
/*
* just an approximation, should be ok.
*/
return ((cfqd->busy_queues - 1) * cfq_prio_slice(cfqd, 1, 0));
return (cfqd->busy_queues - 1) * (cfq_prio_slice(cfqd, 1, 0) -
cfq_prio_slice(cfqd, cfq_cfqq_sync(cfqq), cfqq->ioprio));
}
/*