diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/cfq-iosched.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 93693bf6083..ca0d7e71324 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -134,11 +134,6 @@ struct cfq_data { struct rb_root prio_trees[CFQ_PRIO_LISTS]; unsigned int busy_queues; - /* - * Used to track any pending rt requests so we can pre-empt current - * non-RT cfqq in service when this value is non-zero. - */ - unsigned int busy_rt_queues; int rq_in_driver[2]; int sync_flight; @@ -653,8 +648,6 @@ static void cfq_add_cfqq_rr(struct cfq_data *cfqd, struct cfq_queue *cfqq) BUG_ON(cfq_cfqq_on_rr(cfqq)); cfq_mark_cfqq_on_rr(cfqq); cfqd->busy_queues++; - if (cfq_class_rt(cfqq)) - cfqd->busy_rt_queues++; cfq_resort_rr_list(cfqd, cfqq); } @@ -678,8 +671,6 @@ static void cfq_del_cfqq_rr(struct cfq_data *cfqd, struct cfq_queue *cfqq) BUG_ON(!cfqd->busy_queues); cfqd->busy_queues--; - if (cfq_class_rt(cfqq)) - cfqd->busy_rt_queues--; } /* @@ -1185,20 +1176,6 @@ static struct cfq_queue *cfq_select_queue(struct cfq_data *cfqd) goto expire; /* - * If we have a RT cfqq waiting, then we pre-empt the current non-rt - * cfqq. - */ - if (!cfq_class_rt(cfqq) && cfqd->busy_rt_queues) { - /* - * We simulate this as cfqq timed out so that it gets to bank - * the remaining of its time slice. - */ - cfq_log_cfqq(cfqd, cfqq, "preempt"); - cfq_slice_expired(cfqd, 1); - goto new_queue; - } - - /* * The active queue has requests and isn't expired, allow it to * dispatch. */ |