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-rw-r--r--drivers/block/noop-iosched.c83
1 files changed, 0 insertions, 83 deletions
diff --git a/drivers/block/noop-iosched.c b/drivers/block/noop-iosched.c
deleted file mode 100644
index b1730b62c37e..000000000000
--- a/drivers/block/noop-iosched.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * elevator noop
- */
-#include <linux/blkdev.h>
-#include <linux/elevator.h>
-#include <linux/bio.h>
-#include <linux/module.h>
-#include <linux/init.h>
-
-/*
- * See if we can find a request that this buffer can be coalesced with.
- */
-static int elevator_noop_merge(request_queue_t *q, struct request **req,
- struct bio *bio)
-{
- int ret;
-
- ret = elv_try_last_merge(q, bio);
- if (ret != ELEVATOR_NO_MERGE)
- *req = q->last_merge;
-
- return ret;
-}
-
-static void elevator_noop_merge_requests(request_queue_t *q, struct request *req,
- struct request *next)
-{
- list_del_init(&next->queuelist);
-}
-
-static void elevator_noop_add_request(request_queue_t *q, struct request *rq,
- int where)
-{
- if (where == ELEVATOR_INSERT_FRONT)
- list_add(&rq->queuelist, &q->queue_head);
- else
- list_add_tail(&rq->queuelist, &q->queue_head);
-
- /*
- * new merges must not precede this barrier
- */
- if (rq->flags & REQ_HARDBARRIER)
- q->last_merge = NULL;
- else if (!q->last_merge)
- q->last_merge = rq;
-}
-
-static struct request *elevator_noop_next_request(request_queue_t *q)
-{
- if (!list_empty(&q->queue_head))
- return list_entry_rq(q->queue_head.next);
-
- return NULL;
-}
-
-static struct elevator_type elevator_noop = {
- .ops = {
- .elevator_merge_fn = elevator_noop_merge,
- .elevator_merge_req_fn = elevator_noop_merge_requests,
- .elevator_next_req_fn = elevator_noop_next_request,
- .elevator_add_req_fn = elevator_noop_add_request,
- },
- .elevator_name = "noop",
- .elevator_owner = THIS_MODULE,
-};
-
-static int __init noop_init(void)
-{
- return elv_register(&elevator_noop);
-}
-
-static void __exit noop_exit(void)
-{
- elv_unregister(&elevator_noop);
-}
-
-module_init(noop_init);
-module_exit(noop_exit);
-
-
-MODULE_AUTHOR("Jens Axboe");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("No-op IO scheduler");