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authorKeith Busch <keith.busch@intel.com>2015-01-07 18:55:44 -0700
committerJens Axboe <axboe@fb.com>2015-01-08 08:55:40 -0700
commitc68ed59f534c318716c6189050af3c5ea03b8071 (patch)
tree6c37d638773c80c2f45b9ecb88d9e2ca60c210ba /include
parent973c01919bce7e3559b62a856b29211ec5ac325c (diff)
blk-mq: Let drivers cancel requeue_work
Kicking requeued requests will start h/w queues in a work_queue, which may alter the driver's requested state to temporarily stop them. This patch exports a method to cancel the q->requeue_work so a driver can be assured stopped h/w queues won't be started up before it is ready. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/blk-mq.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index addf8a19d806..18684e0bdb8a 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -201,6 +201,7 @@ void __blk_mq_end_request(struct request *rq, int error);
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_complete_request(struct request *rq);