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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>
This commit is contained in:
Jens Axboe 2007-01-19 11:59:30 +11:00 committed by Jens Axboe
parent c5b680f3b7
commit 1792669cc1
1 changed files with 4 additions and 5 deletions
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9
block/cfq-iosched.c
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@ -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);
}
}