aboutsummaryrefslogtreecommitdiff
path: root/drivers/block/noop-iosched.c
diff options
context:
space:
mode:
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 888c477e02b..b1730b62c37 100644
--- a/drivers/block/noop-iosched.c
+++ b/drivers/block/noop-iosched.c
@@ -13,34 +13,13 @@
static int elevator_noop_merge(request_queue_t *q, struct request **req,
struct bio *bio)
{
- struct list_head *entry = &q->queue_head;
- struct request *__rq;
int ret;
- if ((ret = elv_try_last_merge(q, bio))) {
+ ret = elv_try_last_merge(q, bio);
+ if (ret != ELEVATOR_NO_MERGE)
*req = q->last_merge;
- return ret;
- }
- while ((entry = entry->prev) != &q->queue_head) {
- __rq = list_entry_rq(entry);
-
- if (__rq->flags & (REQ_SOFTBARRIER | REQ_HARDBARRIER))
- break;
- else if (__rq->flags & REQ_STARTED)
- break;
-
- if (!blk_fs_request(__rq))
- continue;
-
- if ((ret = elv_try_merge(__rq, bio))) {
- *req = __rq;
- q->last_merge = __rq;
- return ret;
- }
- }
-
- return ELEVATOR_NO_MERGE;
+ return ret;
}
static void elevator_noop_merge_requests(request_queue_t *q, struct request *req,