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| author | Jens Axboe <jens.axboe@oracle.com> | 2007-01-19 11:59:30 +1100 |
|---|---|---|
| committer | Jens Axboe <axboe@carl.home.kernel.dk> | 2007-02-11 23:14:45 +0100 |
| commit | 1792669cc1acc2069869b7ca41a0195240de05e0 (patch) | |
| tree | 9ad405045d3ea65d15cae2c795e97280d072bb66 | |
| parent | c5b680f3b7593f2b066c683df799d19f807fb23d (diff) | |
| download | linux-1792669cc1acc2069869b7ca41a0195240de05e0.tar.gz linux-1792669cc1acc2069869b7ca41a0195240de05e0.tar.bz2 linux-1792669cc1acc2069869b7ca41a0195240de05e0.zip | |
cfq-iosched: don't pass in queue for cfq_arm_slice_timer()
It must always be the active queue, otherwise it's a bug. So just
use the active_queue, don't pass it in explicitly.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| -rw-r--r-- | block/cfq-iosched.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 039b38cf805c..3df41a00b553 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -822,14 +822,13 @@ static struct cfq_queue *cfq_set_active_queue(struct cfq_data *cfqd) #define CIC_SEEKY(cic) ((cic)->seek_mean > (128 * 1024)) -static int cfq_arm_slice_timer(struct cfq_data *cfqd, struct cfq_queue *cfqq) - +static int cfq_arm_slice_timer(struct cfq_data *cfqd) { + struct cfq_queue *cfqq = cfqd->active_queue; struct cfq_io_context *cic; unsigned long sl; WARN_ON(!RB_EMPTY_ROOT(&cfqq->sort_list)); - WARN_ON(cfqq != cfqd->active_queue); /* * idle is disabled, either manually or by past process history @@ -937,7 +936,7 @@ static struct cfq_queue *cfq_select_queue(struct cfq_data *cfqd) cfqq = NULL; goto keep_queue; } else if (cfq_cfqq_class_sync(cfqq)) { - if (cfq_arm_slice_timer(cfqd, cfqq)) + if (cfq_arm_slice_timer(cfqd)) return NULL; } @@ -1734,7 +1733,7 @@ static void cfq_completed_request(request_queue_t *q, struct request *rq) if (cfq_slice_used(cfqq)) cfq_slice_expired(cfqd, 0); else if (sync && RB_EMPTY_ROOT(&cfqq->sort_list)) { - if (!cfq_arm_slice_timer(cfqd, cfqq)) + if (!cfq_arm_slice_timer(cfqd)) cfq_schedule_dispatch(cfqd); } } |