blk-rq-qos: make rq_qos_add and rq_qos_del more useful

[linux-2.6-microblaze.git] / block / blk-rq-qos.c

diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c
index aae98dc..14bee1b 100644 (file)
--- a/block/blk-rq-qos.c
+++ b/block/blk-rq-qos.c
@@ -295,8 +295,15 @@ void rq_qos_exit(struct request_queue *q)
        }
 }
 
-int rq_qos_add(struct request_queue *q, struct rq_qos *rqos)
+int rq_qos_add(struct rq_qos *rqos, struct gendisk *disk, enum rq_qos_id id,
+               struct rq_qos_ops *ops)
 {
+       struct request_queue *q = disk->queue;
+
+       rqos->q = q;
+       rqos->id = id;
+       rqos->ops = ops;
+
        /*
         * No IO can be in-flight when adding rqos, so freeze queue, which
         * is fine since we only support rq_qos for blk-mq queue.
@@ -326,11 +333,11 @@ ebusy:
        spin_unlock_irq(&q->queue_lock);
        blk_mq_unfreeze_queue(q);
        return -EBUSY;
-
 }
 
-void rq_qos_del(struct request_queue *q, struct rq_qos *rqos)
+void rq_qos_del(struct rq_qos *rqos)
 {
+       struct request_queue *q = rqos->q;
        struct rq_qos **cur;
 
        /*