diff options
| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2016-10-28 17:19:37 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-11-02 12:50:19 -0600 |
| commit | fd00144301d64f1742541a3c5e64cd1c51f39c55 (patch) | |
| tree | 51ef593c5beb15b66ba36b3eaac027369441d16f /include/linux/blk-mq.h | |
| parent | 5d1b25c1ecabb37f8eb58c8e9dd74f77f703e5d9 (diff) | |
| download | linux-next-fd00144301d64f1742541a3c5e64cd1c51f39c55.tar.gz | |
blk-mq: Introduce blk_mq_queue_stopped()
The function blk_queue_stopped() allows to test whether or not a
traditional request queue has been stopped. Introduce a helper
function that allows block drivers to query easily whether or not
one or more hardware contexts of a blk-mq queue have been stopped.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blk-mq.h')
| -rw-r--r-- | include/linux/blk-mq.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 535ab2e13d2e..aa930009fcd3 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -223,6 +223,7 @@ void blk_mq_delay_kick_requeue_list(struct request_queue *q, unsigned long msecs void blk_mq_abort_requeue_list(struct request_queue *q); void blk_mq_complete_request(struct request *rq, int error); +bool blk_mq_queue_stopped(struct request_queue *q); 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); |