diff options
| author |   Christoph Hellwig <hch@lst.de> | 2014-04-16 10:48:08 -0600 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2014-04-16 14:15:25 -0600 |
| commit | 70f4db639c5b2479e08657392cbf3ba3cceea11c (patch) | |
| tree | 58a5acc839c2d0dd73436fcd6a95c8fe50bbccff /include/linux/blk-mq.h | |
| parent | blk-mq: add async parameter to blk_mq_start_stopped_hw_queues (diff) | |
| download | linux-dev-70f4db639c5b2479e08657392cbf3ba3cceea11c.tar.xz linux-dev-70f4db639c5b2479e08657392cbf3ba3cceea11c.zip | |
blk-mq: add blk_mq_delay_queue
Add a blk-mq equivalent to blk_delay_queue so that the scsi layer can ask
to be kicked again after a delay.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Modified by me to kill the unnecessary preempt disable/enable
in the delayed workqueue handler.
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blk-mq.h')
| -rw-r--r-- | include/linux/blk-mq.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 9ecfab96d8c9..ae868e77bc2f 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -18,7 +18,8 @@ struct blk_mq_hw_ctx { } ____cacheline_aligned_in_smp; unsigned long state; /* BLK_MQ_S_* flags */ - struct delayed_work delayed_work; + struct delayed_work run_work; + struct delayed_work delay_work; cpumask_var_t cpumask; unsigned long flags; /* BLK_MQ_F_* flags */ @@ -158,6 +159,7 @@ void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx); void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx); void blk_mq_stop_hw_queues(struct request_queue *q); void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async); +void blk_mq_delay_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs); /* * Driver command data is immediately after the request. So subtract request |