diff options
Diffstat (limited to 'block/elevator.c')
-rw-r--r-- | block/elevator.c | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/block/elevator.c b/block/elevator.c index 8fdcd64ae12e..54e1adac26c5 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -225,8 +225,6 @@ int elevator_init(struct request_queue *q) chosen_elevator); } - if (!e) - e = elevator_get(q, CONFIG_DEFAULT_IOSCHED, false); if (!e) { printk(KERN_ERR "Default I/O scheduler not found. Using noop.\n"); @@ -356,68 +354,6 @@ struct request *elv_rb_find(struct rb_root *root, sector_t sector) } EXPORT_SYMBOL(elv_rb_find); -/* - * Insert rq into dispatch queue of q. Queue lock must be held on - * entry. rq is sort instead into the dispatch queue. To be used by - * specific elevators. - */ -void elv_dispatch_sort(struct request_queue *q, struct request *rq) -{ - sector_t boundary; - struct list_head *entry; - - if (q->last_merge == rq) - q->last_merge = NULL; - - elv_rqhash_del(q, rq); - - q->nr_sorted--; - - boundary = q->end_sector; - list_for_each_prev(entry, &q->queue_head) { - struct request *pos = list_entry_rq(entry); - - if (req_op(rq) != req_op(pos)) - break; - if (rq_data_dir(rq) != rq_data_dir(pos)) - break; - if (pos->rq_flags & (RQF_STARTED | RQF_SOFTBARRIER)) - break; - if (blk_rq_pos(rq) >= boundary) { - if (blk_rq_pos(pos) < boundary) - continue; - } else { - if (blk_rq_pos(pos) >= boundary) - break; - } - if (blk_rq_pos(rq) >= blk_rq_pos(pos)) - break; - } - - list_add(&rq->queuelist, entry); -} -EXPORT_SYMBOL(elv_dispatch_sort); - -/* - * Insert rq into dispatch queue of q. Queue lock must be held on - * entry. rq is added to the back of the dispatch queue. To be used by - * specific elevators. - */ -void elv_dispatch_add_tail(struct request_queue *q, struct request *rq) -{ - if (q->last_merge == rq) - q->last_merge = NULL; - - elv_rqhash_del(q, rq); - - q->nr_sorted--; - - q->end_sector = rq_end_sector(rq); - q->boundary_rq = rq; - list_add_tail(&rq->queuelist, &q->queue_head); -} -EXPORT_SYMBOL(elv_dispatch_add_tail); - enum elv_merge elv_merge(struct request_queue *q, struct request **req, struct bio *bio) { @@ -881,12 +817,6 @@ int elv_register(struct elevator_type *e) list_add_tail(&e->list, &elv_list); spin_unlock(&elv_list_lock); - /* print pretty message */ - if (elevator_match(e, chosen_elevator) || - (!*chosen_elevator && - elevator_match(e, CONFIG_DEFAULT_IOSCHED))) - def = " (default)"; - printk(KERN_INFO "io scheduler %s registered%s\n", e->elevator_name, def); return 0; |