Commit aa306ab7 authored by Ming Lei's avatar Ming Lei Committed by Jens Axboe
Browse files

blk-mq: introduce blk_mq_request_completed() 



NVMe needs this function to decide if one request to be aborted has
been completed in normal IO path already.

So introduce it.

Cc: Max Gurtovoy <maxg@mellanox.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent e21a712a

block/blk-mq.c

+6 −0
Original line number Diff line number Diff line
@@ -665,6 +665,12 @@ int blk_mq_request_started(struct request *rq) 
}

EXPORT_SYMBOL_GPL(blk_mq_request_started);



int blk_mq_request_completed(struct request *rq)

{

	return blk_mq_rq_state(rq) == MQ_RQ_COMPLETE;

}

EXPORT_SYMBOL_GPL(blk_mq_request_completed);



void blk_mq_start_request(struct request *rq)

{

	struct request_queue *q = rq->q;

include/linux/blk-mq.h

+1 −0
Original line number Diff line number Diff line
@@ -296,6 +296,7 @@ static inline u16 blk_mq_unique_tag_to_tag(u32 unique_tag) 




int blk_mq_request_started(struct request *rq);

int blk_mq_request_completed(struct request *rq);

void blk_mq_start_request(struct request *rq);

void blk_mq_end_request(struct request *rq, blk_status_t error);

void __blk_mq_end_request(struct request *rq, blk_status_t error);