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| author | Jens Axboe <jens.axboe@oracle.com> | 2007-04-23 08:26:36 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@nelson.home.kernel.dk> | 2007-04-30 09:01:22 +0200 |
| commit | 20e493a8d03b3b2f51b619a453f7bbbebedd6bda (patch) | |
| tree | 766d1cccd84acac99a806f181a6f68682f5f0aec /block | |
| parent | 6084cdda0ea4561feb68e00a8c50068bba98006d (diff) | |
| download | lwn-20e493a8d03b3b2f51b619a453f7bbbebedd6bda.tar.gz lwn-20e493a8d03b3b2f51b619a453f7bbbebedd6bda.zip | |
cfq-iosched: get rid of ->dispatch_slice
We can track it fairly accurately locally, let the slice handling
take care of the rest.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/cfq-iosched.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index f089eeecdf32..839086dcb0af 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -106,7 +106,6 @@ struct cfq_data { struct cfq_queue *active_queue; struct cfq_io_context *active_cic; - unsigned int dispatch_slice; struct timer_list idle_class_timer; @@ -775,8 +774,6 @@ __cfq_slice_expired(struct cfq_data *cfqd, struct cfq_queue *cfqq, put_io_context(cfqd->active_cic->ioc); cfqd->active_cic = NULL; } - - cfqd->dispatch_slice = 0; } static inline void cfq_slice_expired(struct cfq_data *cfqd, int timed_out) @@ -1026,7 +1023,6 @@ __cfq_dispatch_requests(struct cfq_data *cfqd, struct cfq_queue *cfqq, */ cfq_dispatch_insert(cfqd->queue, rq); - cfqd->dispatch_slice++; dispatched++; if (!cfqd->active_cic) { @@ -1044,7 +1040,7 @@ __cfq_dispatch_requests(struct cfq_data *cfqd, struct cfq_queue *cfqq, * queue always expire after 1 dispatch round. */ if (cfqd->busy_queues > 1 && ((!cfq_cfqq_sync(cfqq) && - cfqd->dispatch_slice >= cfq_prio_to_maxrq(cfqd, cfqq)) || + dispatched >= cfq_prio_to_maxrq(cfqd, cfqq)) || cfq_class_idle(cfqq))) { cfqq->slice_end = jiffies + 1; cfq_slice_expired(cfqd, 0); |