diff options
Diffstat (limited to 'block/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index a31066d6c20..4c24986151b 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -357,7 +357,11 @@ static void cfq_resort_rr_list(struct cfq_queue *cfqq, int preempted) struct cfq_data *cfqd = cfqq->cfqd; struct list_head *list; - BUG_ON(!cfq_cfqq_on_rr(cfqq)); + /* + * Resorting requires the cfqq to be on the RR list already. + */ + if (!cfq_cfqq_on_rr(cfqq)) + return; list_del(&cfqq->cfq_list); @@ -642,8 +646,7 @@ __cfq_slice_expired(struct cfq_data *cfqd, struct cfq_queue *cfqq, else cfqq->slice_left = 0; - if (cfq_cfqq_on_rr(cfqq)) - cfq_resort_rr_list(cfqq, preempted); + cfq_resort_rr_list(cfqq, preempted); if (cfqq == cfqd->active_queue) cfqd->active_queue = NULL; @@ -1238,9 +1241,7 @@ static void cfq_init_prio_data(struct cfq_queue *cfqq) cfqq->org_ioprio = cfqq->ioprio; cfqq->org_ioprio_class = cfqq->ioprio_class; - if (cfq_cfqq_on_rr(cfqq)) - cfq_resort_rr_list(cfqq, 0); - + cfq_resort_rr_list(cfqq, 0); cfq_clear_cfqq_prio_changed(cfqq); } @@ -1691,8 +1692,7 @@ static void cfq_completed_request(request_queue_t *q, struct request *rq) if (!cfq_class_idle(cfqq)) cfqd->last_end_request = now; - if (!cfq_cfqq_dispatched(cfqq) && cfq_cfqq_on_rr(cfqq)) - cfq_resort_rr_list(cfqq, 0); + cfq_resort_rr_list(cfqq, 0); if (sync) RQ_CIC(rq)->last_end_request = now; @@ -1742,8 +1742,7 @@ static void cfq_prio_boost(struct cfq_queue *cfqq) /* * refile between round-robin lists if we moved the priority class */ - if ((ioprio_class != cfqq->ioprio_class || ioprio != cfqq->ioprio) && - cfq_cfqq_on_rr(cfqq)) + if ((ioprio_class != cfqq->ioprio_class || ioprio != cfqq->ioprio)) cfq_resort_rr_list(cfqq, 0); } |