diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/blkdev.h | 128 |
1 files changed, 8 insertions, 120 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 1069f4483c6e..f9d60a78c08a 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -872,126 +872,14 @@ extern struct request *blk_fetch_request(struct request_queue *q); */ extern bool blk_update_request(struct request *rq, int error, unsigned int nr_bytes); -extern bool blk_end_bidi_request(struct request *rq, int error, - unsigned int nr_bytes, - unsigned int bidi_bytes); -extern bool __blk_end_bidi_request(struct request *rq, int error, - unsigned int nr_bytes, - unsigned int bidi_bytes); - -/** - * blk_end_request - Helper function for drivers to complete the request. - * @rq: the request being processed - * @error: %0 for success, < %0 for error - * @nr_bytes: number of bytes to complete - * - * Description: - * Ends I/O on a number of bytes attached to @rq. - * If @rq has leftover, sets it up for the next range of segments. - * - * Return: - * %false - we are done with this request - * %true - still buffers pending for this request - **/ -static inline bool blk_end_request(struct request *rq, int error, - unsigned int nr_bytes) -{ - return blk_end_bidi_request(rq, error, nr_bytes, 0); -} - -/** - * blk_end_request_all - Helper function for drives to finish the request. - * @rq: the request to finish - * @err: %0 for success, < %0 for error - * - * Description: - * Completely finish @rq. - */ -static inline void blk_end_request_all(struct request *rq, int error) -{ - bool pending; - unsigned int bidi_bytes = 0; - - if (unlikely(blk_bidi_rq(rq))) - bidi_bytes = blk_rq_bytes(rq->next_rq); - - pending = blk_end_bidi_request(rq, error, blk_rq_bytes(rq), bidi_bytes); - BUG_ON(pending); -} - -/** - * blk_end_request_cur - Helper function to finish the current request chunk. - * @rq: the request to finish the current chunk for - * @err: %0 for success, < %0 for error - * - * Description: - * Complete the current consecutively mapped chunk from @rq. - * - * Return: - * %false - we are done with this request - * %true - still buffers pending for this request - */ -static inline bool blk_end_request_cur(struct request *rq, int error) -{ - return blk_end_request(rq, error, blk_rq_cur_bytes(rq)); -} - -/** - * __blk_end_request - Helper function for drivers to complete the request. - * @rq: the request being processed - * @error: %0 for success, < %0 for error - * @nr_bytes: number of bytes to complete - * - * Description: - * Must be called with queue lock held unlike blk_end_request(). - * - * Return: - * %false - we are done with this request - * %true - still buffers pending for this request - **/ -static inline bool __blk_end_request(struct request *rq, int error, - unsigned int nr_bytes) -{ - return __blk_end_bidi_request(rq, error, nr_bytes, 0); -} - -/** - * __blk_end_request_all - Helper function for drives to finish the request. - * @rq: the request to finish - * @err: %0 for success, < %0 for error - * - * Description: - * Completely finish @rq. Must be called with queue lock held. - */ -static inline void __blk_end_request_all(struct request *rq, int error) -{ - bool pending; - unsigned int bidi_bytes = 0; - - if (unlikely(blk_bidi_rq(rq))) - bidi_bytes = blk_rq_bytes(rq->next_rq); - - pending = __blk_end_bidi_request(rq, error, blk_rq_bytes(rq), bidi_bytes); - BUG_ON(pending); -} - -/** - * __blk_end_request_cur - Helper function to finish the current request chunk. - * @rq: the request to finish the current chunk for - * @err: %0 for success, < %0 for error - * - * Description: - * Complete the current consecutively mapped chunk from @rq. Must - * be called with queue lock held. - * - * Return: - * %false - we are done with this request - * %true - still buffers pending for this request - */ -static inline bool __blk_end_request_cur(struct request *rq, int error) -{ - return __blk_end_request(rq, error, blk_rq_cur_bytes(rq)); -} +extern bool blk_end_request(struct request *rq, int error, + unsigned int nr_bytes); +extern void blk_end_request_all(struct request *rq, int error); +extern bool blk_end_request_cur(struct request *rq, int error); +extern bool __blk_end_request(struct request *rq, int error, + unsigned int nr_bytes); +extern void __blk_end_request_all(struct request *rq, int error); +extern bool __blk_end_request_cur(struct request *rq, int error); extern void blk_complete_request(struct request *); extern void __blk_complete_request(struct request *); |