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blk-mq: Add helper to abort requeued requests

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Adds a helper function a driver can use to abort requeued requests in
case any are pending when h/w queues are being removed.

Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jens Axboe
2015-01-07 18:55:45 -07:00
parent c68ed59f53
commit 1885b24d23
2 changed files with 21 additions and 0 deletions
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include/linux/blk-mq.h
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@@ -203,6 +203,7 @@ void blk_mq_requeue_request(struct request *rq);
void blk_mq_add_to_requeue_list(struct request *rq, bool at_head);
void blk_mq_cancel_requeue_work(struct request_queue *q);
void blk_mq_kick_requeue_list(struct request_queue *q);
void blk_mq_abort_requeue_list(struct request_queue *q);
void blk_mq_complete_request(struct request *rq);
void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx);