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-rw-r--r--block/blk.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/block/blk.h b/block/blk.h
index 6e7dc87141e4..874eb4ea8093 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -51,6 +51,8 @@ static inline void blk_clear_rq_complete(struct request *rq)
51 */ 51 */
52#define ELV_ON_HASH(rq) (!hlist_unhashed(&(rq)->hash)) 52#define ELV_ON_HASH(rq) (!hlist_unhashed(&(rq)->hash))
53 53
54struct request *blk_do_ordered(struct request_queue *q, struct request *rq);
55
54static inline struct request *__elv_next_request(struct request_queue *q) 56static inline struct request *__elv_next_request(struct request_queue *q)
55{ 57{
56 struct request *rq; 58 struct request *rq;
@@ -58,8 +60,9 @@ static inline struct request *__elv_next_request(struct request_queue *q)
58 while (1) { 60 while (1) {
59 while (!list_empty(&q->queue_head)) { 61 while (!list_empty(&q->queue_head)) {
60 rq = list_entry_rq(q->queue_head.next); 62 rq = list_entry_rq(q->queue_head.next);
61 if (blk_do_ordered(q, &rq)) 63 rq = blk_do_ordered(q, rq);
62 return rq; 64 if (rq)
65 return !IS_ERR(rq) ? rq : NULL;
63 } 66 }
64 67
65 if (!q->elevator->ops->elevator_dispatch_fn(q, 0)) 68 if (!q->elevator->ops->elevator_dispatch_fn(q, 0))