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;