diff options
Diffstat (limited to 'block/blk.h')
| -rw-r--r-- | block/blk.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h index e837b8f619b7..c90e1d8f7a2b 100644 --- a/block/blk.h +++ b/block/blk.h @@ -10,6 +10,7 @@ #define BLK_BATCH_REQ 32 extern struct kmem_cache *blk_requestq_cachep; +extern struct kmem_cache *request_cachep; extern struct kobj_type blk_queue_ktype; extern struct ida blk_queue_ida; @@ -34,14 +35,30 @@ bool __blk_end_bidi_request(struct request *rq, int error, unsigned int nr_bytes, unsigned int bidi_bytes); void blk_rq_timed_out_timer(unsigned long data); +void blk_rq_check_expired(struct request *rq, unsigned long *next_timeout, + unsigned int *next_set); +void __blk_add_timer(struct request *req, struct list_head *timeout_list); void blk_delete_timer(struct request *); void blk_add_timer(struct request *); + +bool bio_attempt_front_merge(struct request_queue *q, struct request *req, + struct bio *bio); +bool bio_attempt_back_merge(struct request_queue *q, struct request *req, + struct bio *bio); +bool blk_attempt_plug_merge(struct request_queue *q, struct bio *bio, + unsigned int *request_count); + +void blk_account_io_start(struct request *req, bool new_io); +void blk_account_io_completion(struct request *req, unsigned int bytes); +void blk_account_io_done(struct request *req); + /* * Internal atomic flags for request handling */ enum rq_atomic_flags { REQ_ATOM_COMPLETE = 0, + REQ_ATOM_STARTED, }; /* |