27 struct rq_qos {  struct
31 	struct rq_qos *next;  argument
38 	void (*throttle)(struct rq_qos *, struct bio *);  argument
39 	void (*track)(struct rq_qos *, struct request *, struct bio *);
40 	void (*merge)(struct rq_qos *, struct request *, struct bio *);
41 	void (*issue)(struct rq_qos *, struct request *);
42 	void (*requeue)(struct rq_qos *, struct request *);
43 	void (*done)(struct rq_qos *, struct request *);
44 	void (*done_bio)(struct rq_qos *, struct bio *);
45 	void (*cleanup)(struct rq_qos *, struct bio *);
46 	void (*queue_depth_changed)(struct rq_qos *);
47 	void (*exit)(struct rq_qos *);
61 static inline struct rq_qos *rq_qos_id(struct request_queue *q,  in rq_qos_id()
64 	struct rq_qos *rqos;  in rq_qos_id()
65 	for (rqos = q->rq_qos; rqos; rqos = rqos->next) {  in rq_qos_id()
72 static inline struct rq_qos *wbt_rq_qos(struct request_queue *q)  in wbt_rq_qos()
77 static inline struct rq_qos *blkcg_rq_qos(struct request_queue *q)  in blkcg_rq_qos()
88 static inline int rq_qos_add(struct request_queue *q, struct rq_qos *rqos)  in rq_qos_add()
102 	rqos->next = q->rq_qos;  in rq_qos_add()
103 	q->rq_qos = rqos;  in rq_qos_add()
122 static inline void rq_qos_del(struct request_queue *q, struct rq_qos *rqos)  in rq_qos_del()
124 	struct rq_qos **cur;  in rq_qos_del()
133 	for (cur = &q->rq_qos; *cur; cur = &(*cur)->next) {  in rq_qos_del()
159 void __rq_qos_cleanup(struct rq_qos *rqos, struct bio *bio);
160 void __rq_qos_done(struct rq_qos *rqos, struct request *rq);
161 void __rq_qos_issue(struct rq_qos *rqos, struct request *rq);
162 void __rq_qos_requeue(struct rq_qos *rqos, struct request *rq);
163 void __rq_qos_throttle(struct rq_qos *rqos, struct bio *bio);
164 void __rq_qos_track(struct rq_qos *rqos, struct request *rq, struct bio *bio);
165 void __rq_qos_merge(struct rq_qos *rqos, struct request *rq, struct bio *bio);
166 void __rq_qos_done_bio(struct rq_qos *rqos, struct bio *bio);
167 void __rq_qos_queue_depth_changed(struct rq_qos *rqos);
171 	if (q->rq_qos)  in rq_qos_cleanup()
172 		__rq_qos_cleanup(q->rq_qos, bio);  in rq_qos_cleanup()
177 	if (q->rq_qos)  in rq_qos_done()
178 		__rq_qos_done(q->rq_qos, rq);  in rq_qos_done()
183 	if (q->rq_qos)  in rq_qos_issue()
184 		__rq_qos_issue(q->rq_qos, rq);  in rq_qos_issue()
189 	if (q->rq_qos)  in rq_qos_requeue()
190 		__rq_qos_requeue(q->rq_qos, rq);  in rq_qos_requeue()
198 		if (q->rq_qos)  in rq_qos_done_bio()
199 			__rq_qos_done_bio(q->rq_qos, bio);  in rq_qos_done_bio()
205 	if (q->rq_qos) {  in rq_qos_throttle()
207 		__rq_qos_throttle(q->rq_qos, bio);  in rq_qos_throttle()
214 	if (q->rq_qos)  in rq_qos_track()
215 		__rq_qos_track(q->rq_qos, rq, bio);  in rq_qos_track()
221 	if (q->rq_qos) {  in rq_qos_merge()
223 		__rq_qos_merge(q->rq_qos, rq, bio);  in rq_qos_merge()
229 	if (q->rq_qos)  in rq_qos_queue_depth_changed()
230 		__rq_qos_queue_depth_changed(q->rq_qos);  in rq_qos_queue_depth_changed()