struct blk_mq_tags *tags;
struct blk_mq_tags *sched_tags;
- struct srcu_struct queue_rq_srcu;
-
unsigned long queued;
unsigned long run;
#define BLK_MQ_MAX_DISPATCH_ORDER 7
struct dentry *debugfs_dir;
struct dentry *sched_debugfs_dir;
#endif
+
+ /* Must be the last member - see also blk_mq_hw_ctx_size(). */
+ struct srcu_struct queue_rq_srcu[0];
};
struct blk_mq_tag_set {
init_request_fn *init_request;
exit_request_fn *exit_request;
reinit_request_fn *reinit_request;
+ /* Called from inside blk_get_request() */
+ void (*initialize_rq_fn)(struct request *rq);
map_queues_fn *map_queues;
BLK_MQ_REQ_INTERNAL = (1 << 2), /* allocate internal/sched tag */
};
-struct request *blk_mq_alloc_request(struct request_queue *q, int rw,
+struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
unsigned int flags);
-struct request *blk_mq_alloc_request_hctx(struct request_queue *q, int op,
- unsigned int flags, unsigned int hctx_idx);
+struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
+ unsigned int op, unsigned int flags, unsigned int hctx_idx);
struct request *blk_mq_tag_to_rq(struct blk_mq_tags *tags, unsigned int tag);
enum {
int blk_mq_map_queues(struct blk_mq_tag_set *set);
void blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set, int nr_hw_queues);
-/*
- * FIXME: this helper is just for working around mpt3sas.
- */
-static inline void blk_mq_quiesce_queue_nowait(struct request_queue *q)
-{
- blk_mq_stop_hw_queues(q);
-}
+void blk_mq_quiesce_queue_nowait(struct request_queue *q);
/*
* Driver command data is immediately after the request. So subtract request