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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
bd166ef1 JA |
2 | #ifndef BLK_MQ_SCHED_H |
3 | #define BLK_MQ_SCHED_H | |
4 | ||
5 | #include "blk-mq.h" | |
6 | #include "blk-mq-tag.h" | |
7 | ||
bd166ef1 JA |
8 | void blk_mq_sched_free_hctx_data(struct request_queue *q, |
9 | void (*exit)(struct blk_mq_hw_ctx *)); | |
10 | ||
e2b3fa5a | 11 | void blk_mq_sched_assign_ioc(struct request *rq); |
bd166ef1 JA |
12 | |
13 | void blk_mq_sched_request_inserted(struct request *rq); | |
e4d750c9 JA |
14 | bool blk_mq_sched_try_merge(struct request_queue *q, struct bio *bio, |
15 | struct request **merged_request); | |
bd166ef1 JA |
16 | bool __blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio); |
17 | bool blk_mq_sched_try_insert_merge(struct request_queue *q, struct request *rq); | |
7211aef8 | 18 | void blk_mq_sched_mark_restart_hctx(struct blk_mq_hw_ctx *hctx); |
6d8c6c0f | 19 | void blk_mq_sched_restart(struct blk_mq_hw_ctx *hctx); |
bd166ef1 | 20 | |
bd6737f1 | 21 | void blk_mq_sched_insert_request(struct request *rq, bool at_head, |
9e97d295 | 22 | bool run_queue, bool async); |
67cae4c9 | 23 | void blk_mq_sched_insert_requests(struct blk_mq_hw_ctx *hctx, |
bd6737f1 JA |
24 | struct blk_mq_ctx *ctx, |
25 | struct list_head *list, bool run_queue_async); | |
26 | ||
bd166ef1 | 27 | void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx); |
bd166ef1 | 28 | |
6917ff0b | 29 | int blk_mq_init_sched(struct request_queue *q, struct elevator_type *e); |
54d5329d | 30 | void blk_mq_exit_sched(struct request_queue *q, struct elevator_queue *e); |
bd166ef1 JA |
31 | |
32 | static inline bool | |
33 | blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio) | |
34 | { | |
9bddeb2a | 35 | if (blk_queue_nomerges(q) || !bio_mergeable(bio)) |
bd166ef1 JA |
36 | return false; |
37 | ||
38 | return __blk_mq_sched_bio_merge(q, bio); | |
39 | } | |
40 | ||
bd166ef1 JA |
41 | static inline bool |
42 | blk_mq_sched_allow_merge(struct request_queue *q, struct request *rq, | |
43 | struct bio *bio) | |
44 | { | |
45 | struct elevator_queue *e = q->elevator; | |
46 | ||
f9cd4bfe JA |
47 | if (e && e->type->ops.allow_merge) |
48 | return e->type->ops.allow_merge(q, rq, bio); | |
bd166ef1 JA |
49 | |
50 | return true; | |
51 | } | |
52 | ||
ed88660a | 53 | static inline void blk_mq_sched_completed_request(struct request *rq, u64 now) |
bd166ef1 | 54 | { |
c05f8525 | 55 | struct elevator_queue *e = rq->q->elevator; |
bd166ef1 | 56 | |
f9cd4bfe JA |
57 | if (e && e->type->ops.completed_request) |
58 | e->type->ops.completed_request(rq, now); | |
bd166ef1 JA |
59 | } |
60 | ||
61 | static inline void blk_mq_sched_started_request(struct request *rq) | |
62 | { | |
63 | struct request_queue *q = rq->q; | |
64 | struct elevator_queue *e = q->elevator; | |
65 | ||
f9cd4bfe JA |
66 | if (e && e->type->ops.started_request) |
67 | e->type->ops.started_request(rq); | |
bd166ef1 JA |
68 | } |
69 | ||
70 | static inline void blk_mq_sched_requeue_request(struct request *rq) | |
71 | { | |
72 | struct request_queue *q = rq->q; | |
73 | struct elevator_queue *e = q->elevator; | |
74 | ||
f9cd4bfe JA |
75 | if (e && e->type->ops.requeue_request) |
76 | e->type->ops.requeue_request(rq); | |
bd166ef1 JA |
77 | } |
78 | ||
79 | static inline bool blk_mq_sched_has_work(struct blk_mq_hw_ctx *hctx) | |
80 | { | |
81 | struct elevator_queue *e = hctx->queue->elevator; | |
82 | ||
f9cd4bfe JA |
83 | if (e && e->type->ops.has_work) |
84 | return e->type->ops.has_work(hctx); | |
bd166ef1 JA |
85 | |
86 | return false; | |
87 | } | |
88 | ||
bd166ef1 JA |
89 | static inline bool blk_mq_sched_needs_restart(struct blk_mq_hw_ctx *hctx) |
90 | { | |
91 | return test_bit(BLK_MQ_S_SCHED_RESTART, &hctx->state); | |
92 | } | |
93 | ||
94 | #endif |