diff options
Diffstat (limited to 'block/blk-merge.c')
| -rw-r--r-- | block/blk-merge.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c index c265348b75d1..e7c2fbc3f656 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -744,6 +744,12 @@ int attempt_front_merge(struct request_queue *q, struct request *rq) int blk_attempt_req_merge(struct request_queue *q, struct request *rq, struct request *next) { + struct elevator_queue *e = q->elevator; + + if (e->type->ops.elevator_allow_rq_merge_fn) + if (!e->type->ops.elevator_allow_rq_merge_fn(q, rq, next)) + return 0; + return attempt_merge(q, rq, next); } |