elevator: make the rqhash helpers exported

Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>

diff --git a/block/elevator.c b/block/elevator.c
index a18a5db274e4a02cfc11be8d760d4683298c43e8..40f0c04e5ad3d076ee24d34f3424b9e42194d454 100644 (file)
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -248,13 +248,13 @@ static inline void __elv_rqhash_del(struct request *rq)
        rq->rq_flags &= ~RQF_HASHED;
 }
 
-static void elv_rqhash_del(struct request_queue *q, struct request *rq)
+void elv_rqhash_del(struct request_queue *q, struct request *rq)
 {
        if (ELV_ON_HASH(rq))
                __elv_rqhash_del(rq);
 }
 
-static void elv_rqhash_add(struct request_queue *q, struct request *rq)
+void elv_rqhash_add(struct request_queue *q, struct request *rq)
 {
        struct elevator_queue *e = q->elevator;
 
@@ -263,13 +263,13 @@ static void elv_rqhash_add(struct request_queue *q, struct request *rq)
        rq->rq_flags |= RQF_HASHED;
 }
 
-static void elv_rqhash_reposition(struct request_queue *q, struct request *rq)
+void elv_rqhash_reposition(struct request_queue *q, struct request *rq)
 {
        __elv_rqhash_del(rq);
        elv_rqhash_add(q, rq);
 }
 
-static struct request *elv_rqhash_find(struct request_queue *q, sector_t offset)
+struct request *elv_rqhash_find(struct request_queue *q, sector_t offset)
 {
        struct elevator_queue *e = q->elevator;
        struct hlist_node *next;

diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index f219c9aed360feeedf738fa8a74f4422db638646..b276e9ef0e0b4d482312217a31d9c4a4f2416f84 100644 (file)
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -108,6 +108,11 @@ struct elevator_type
 
 #define ELV_HASH_BITS 6
 
+void elv_rqhash_del(struct request_queue *q, struct request *rq);
+void elv_rqhash_add(struct request_queue *q, struct request *rq);
+void elv_rqhash_reposition(struct request_queue *q, struct request *rq);
+struct request *elv_rqhash_find(struct request_queue *q, sector_t offset);
+
 /*
  * each queue has an elevator_queue associated with it
  */