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-rw-r--r--block/elevator.c16
1 files changed, 4 insertions, 12 deletions
diff --git a/block/elevator.c b/block/elevator.c
index 99838f460b4..91e18f8af9b 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -515,7 +515,6 @@ static bool elv_attempt_insert_merge(struct request_queue *q,
struct request *rq)
{
struct request *__rq;
- bool ret;
if (blk_queue_nomerges(q))
return false;
@@ -529,21 +528,14 @@ static bool elv_attempt_insert_merge(struct request_queue *q,
if (blk_queue_noxmerges(q))
return false;
- ret = false;
/*
* See if our hash lookup can find a potential backmerge.
*/
- while (1) {
- __rq = elv_rqhash_find(q, blk_rq_pos(rq));
- if (!__rq || !blk_attempt_req_merge(q, __rq, rq))
- break;
-
- /* The merged request could be merged with others, try again */
- ret = true;
- rq = __rq;
- }
+ __rq = elv_rqhash_find(q, blk_rq_pos(rq));
+ if (__rq && blk_attempt_req_merge(q, __rq, rq))
+ return true;
- return ret;
+ return false;
}
void elv_merged_request(struct request_queue *q, struct request *rq, int type)