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Diffstat (limited to 'drivers/block/noop-iosched.c')
-rw-r--r--drivers/block/noop-iosched.c27
1 files changed, 3 insertions, 24 deletions
diff --git a/drivers/block/noop-iosched.c b/drivers/block/noop-iosched.c
index 888c477e02b3..b1730b62c37e 100644
--- a/drivers/block/noop-iosched.c
+++ b/drivers/block/noop-iosched.c
@@ -13,34 +13,13 @@
13static int elevator_noop_merge(request_queue_t *q, struct request **req, 13static int elevator_noop_merge(request_queue_t *q, struct request **req,
14 struct bio *bio) 14 struct bio *bio)
15{ 15{
16 struct list_head *entry = &q->queue_head;
17 struct request *__rq;
18 int ret; 16 int ret;
19 17
20 if ((ret = elv_try_last_merge(q, bio))) { 18 ret = elv_try_last_merge(q, bio);
19 if (ret != ELEVATOR_NO_MERGE)
21 *req = q->last_merge; 20 *req = q->last_merge;
22 return ret;
23 }
24 21
25 while ((entry = entry->prev) != &q->queue_head) { 22 return ret;
26 __rq = list_entry_rq(entry);
27
28 if (__rq->flags & (REQ_SOFTBARRIER | REQ_HARDBARRIER))
29 break;
30 else if (__rq->flags & REQ_STARTED)
31 break;
32
33 if (!blk_fs_request(__rq))
34 continue;
35
36 if ((ret = elv_try_merge(__rq, bio))) {
37 *req = __rq;
38 q->last_merge = __rq;
39 return ret;
40 }
41 }
42
43 return ELEVATOR_NO_MERGE;
44} 23}
45 24
46static void elevator_noop_merge_requests(request_queue_t *q, struct request *req, 25static void elevator_noop_merge_requests(request_queue_t *q, struct request *req,