diff options
Diffstat (limited to 'block/elevator.h')
| -rw-r--r-- | block/elevator.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/block/elevator.h b/block/elevator.h index a07ce773a38f..adc5c157e17e 100644 --- a/block/elevator.h +++ b/block/elevator.h @@ -23,8 +23,17 @@ enum elv_merge { struct blk_mq_alloc_data; struct blk_mq_hw_ctx; +struct elevator_tags { + /* num. of hardware queues for which tags are allocated */ + unsigned int nr_hw_queues; + /* depth used while allocating tags */ + unsigned int nr_requests; + /* shared tag is stored at index 0 */ + struct blk_mq_tags *tags[]; +}; + struct elevator_mq_ops { - int (*init_sched)(struct request_queue *, struct elevator_type *); + int (*init_sched)(struct request_queue *, struct elevator_queue *); void (*exit_sched)(struct elevator_queue *); int (*init_hctx)(struct blk_mq_hw_ctx *, unsigned int); void (*exit_hctx)(struct blk_mq_hw_ctx *, unsigned int); @@ -113,6 +122,7 @@ struct request *elv_rqhash_find(struct request_queue *q, sector_t offset); struct elevator_queue { struct elevator_type *type; + struct elevator_tags *et; void *elevator_data; struct kobject kobj; struct mutex sysfs_lock; @@ -152,8 +162,8 @@ ssize_t elv_iosched_show(struct gendisk *disk, char *page); ssize_t elv_iosched_store(struct gendisk *disk, const char *page, size_t count); extern bool elv_bio_merge_ok(struct request *, struct bio *); -extern struct elevator_queue *elevator_alloc(struct request_queue *, - struct elevator_type *); +struct elevator_queue *elevator_alloc(struct request_queue *, + struct elevator_type *, struct elevator_tags *); /* * Helper functions. |