9 struct list_head rq_list
;
10 } ____cacheline_aligned_in_smp
;
13 unsigned int index_hw
;
15 unsigned int last_tag ____cacheline_aligned_in_smp
;
17 /* incremented at dispatch time */
18 unsigned long rq_dispatched
[2];
19 unsigned long rq_merged
;
21 /* incremented at completion time */
22 unsigned long ____cacheline_aligned_in_smp rq_completed
[2];
24 struct request_queue
*queue
;
26 } ____cacheline_aligned_in_smp
;
28 void __blk_mq_complete_request(struct request
*rq
);
29 void blk_mq_run_hw_queue(struct blk_mq_hw_ctx
*hctx
, bool async
);
30 void blk_mq_init_flush(struct request_queue
*q
);
31 void blk_mq_drain_queue(struct request_queue
*q
);
32 void blk_mq_free_queue(struct request_queue
*q
);
33 void blk_mq_clone_flush_request(struct request
*flush_rq
,
34 struct request
*orig_rq
);
35 int blk_mq_update_nr_requests(struct request_queue
*q
, unsigned int nr
);
40 struct blk_mq_cpu_notifier
;
41 void blk_mq_init_cpu_notifier(struct blk_mq_cpu_notifier
*notifier
,
42 int (*fn
)(void *, unsigned long, unsigned int),
44 void blk_mq_register_cpu_notifier(struct blk_mq_cpu_notifier
*notifier
);
45 void blk_mq_unregister_cpu_notifier(struct blk_mq_cpu_notifier
*notifier
);
46 void blk_mq_cpu_init(void);
47 void blk_mq_enable_hotplug(void);
48 void blk_mq_disable_hotplug(void);
51 * CPU -> queue mappings
53 extern unsigned int *blk_mq_make_queue_map(struct blk_mq_tag_set
*set
);
54 extern int blk_mq_update_queue_map(unsigned int *map
, unsigned int nr_queues
);
55 extern int blk_mq_hw_queue_to_node(unsigned int *map
, unsigned int);
60 extern int blk_mq_sysfs_register(struct request_queue
*q
);
61 extern void blk_mq_sysfs_unregister(struct request_queue
*q
);
64 * Basic implementation of sparser bitmap, allowing the user to spread
65 * the bits over more cachelines.
67 struct blk_align_bitmap
{
70 } ____cacheline_aligned_in_smp
;