diff options
| author | Tejun Heo <tj@kernel.org> | 2019-08-29 00:05:54 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-08-29 05:17:05 +0200 |
| commit | d3e65ffff61c329fb2d0bf15736c440c2d0cfc97 (patch) | |
| tree | 2a105cbaeb09f223b4171644418b4d2697cf9ba2 /block/blk-rq-qos.h | |
| parent | blkcg: separate blkcg_conf_get_disk() out of blkg_conf_prep() (diff) | |
| download | linux-d3e65ffff61c329fb2d0bf15736c440c2d0cfc97.tar.xz linux-d3e65ffff61c329fb2d0bf15736c440c2d0cfc97.zip | |
block/rq_qos: add rq_qos_merge()
Add a merge hook for rq_qos. This will be used by io.weight.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-rq-qos.h')
| -rw-r--r-- | block/blk-rq-qos.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/block/blk-rq-qos.h b/block/blk-rq-qos.h index 2300e038b9fa..8e426a8505b6 100644 --- a/block/blk-rq-qos.h +++ b/block/blk-rq-qos.h @@ -35,6 +35,7 @@ struct rq_qos { struct rq_qos_ops { void (*throttle)(struct rq_qos *, struct bio *); void (*track)(struct rq_qos *, struct request *, struct bio *); + void (*merge)(struct rq_qos *, struct request *, struct bio *); void (*issue)(struct rq_qos *, struct request *); void (*requeue)(struct rq_qos *, struct request *); void (*done)(struct rq_qos *, struct request *); @@ -135,6 +136,7 @@ void __rq_qos_issue(struct rq_qos *rqos, struct request *rq); void __rq_qos_requeue(struct rq_qos *rqos, struct request *rq); void __rq_qos_throttle(struct rq_qos *rqos, struct bio *bio); void __rq_qos_track(struct rq_qos *rqos, struct request *rq, struct bio *bio); +void __rq_qos_merge(struct rq_qos *rqos, struct request *rq, struct bio *bio); void __rq_qos_done_bio(struct rq_qos *rqos, struct bio *bio); static inline void rq_qos_cleanup(struct request_queue *q, struct bio *bio) @@ -185,6 +187,13 @@ static inline void rq_qos_track(struct request_queue *q, struct request *rq, __rq_qos_track(q->rq_qos, rq, bio); } +static inline void rq_qos_merge(struct request_queue *q, struct request *rq, + struct bio *bio) +{ + if (q->rq_qos) + __rq_qos_merge(q->rq_qos, rq, bio); +} + void rq_qos_exit(struct request_queue *); #endif |