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| author |   Bart Van Assche <bart.vanassche@sandisk.com> | 2017-04-07 11:16:52 -0700 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2017-04-07 12:27:06 -0600 |
| commit | 7587a5ae7eef0439f7be31f1b5959af062bbc5ec (patch) | |
| tree | e93068ad849c63192765dcb8ea4d1410f70eeda2 /include/linux/blk-mq.h | |
| parent | blk-mq: remap queues when adding/removing hardware queues (diff) | |
| download | linux-dev-7587a5ae7eef0439f7be31f1b5959af062bbc5ec.tar.xz linux-dev-7587a5ae7eef0439f7be31f1b5959af062bbc5ec.zip | |
blk-mq: Introduce blk_mq_delay_run_hw_queue()
Introduce a function that runs a hardware queue unconditionally
after a delay. Note: there is already a function that stops and
restarts a hardware queue after a delay, namely blk_mq_delay_queue().
This function will be used in the next patch in this series.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Long Li <longli@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blk-mq.h')
| -rw-r--r-- | include/linux/blk-mq.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index b296a9006117..9382c5da7a2e 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -51,6 +51,7 @@ struct blk_mq_hw_ctx { atomic_t nr_active; + struct delayed_work delayed_run_work; struct delayed_work delay_work; struct hlist_node cpuhp_dead; @@ -238,6 +239,7 @@ void blk_mq_stop_hw_queues(struct request_queue *q); void blk_mq_start_hw_queues(struct request_queue *q); void blk_mq_start_stopped_hw_queue(struct blk_mq_hw_ctx *hctx, bool async); void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async); +void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs); void blk_mq_run_hw_queues(struct request_queue *q, bool async); void blk_mq_delay_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs); void blk_mq_tagset_busy_iter(struct blk_mq_tag_set *tagset, |