A driver may need to iterate a particular queue's tagged request rather than the whole tagset.
Signed-off-by: Keith Busch <[email protected]> --- block/blk-mq-tag.c | 1 + block/blk-mq-tag.h | 2 -- include/linux/blk-mq.h | 2 ++ 3 files changed, 3 insertions(+), 2 deletions(-) diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index a4931fc7be8a..a4ba91b332b0 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -407,6 +407,7 @@ void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_iter_fn *fn, } blk_queue_exit(q); } +EXPORT_SYMBOL(blk_mq_queue_tag_busy_iter); static int bt_alloc(struct sbitmap_queue *bt, unsigned int depth, bool round_robin, int node) diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h index 61deab0b5a5a..5af7ff94b400 100644 --- a/block/blk-mq-tag.h +++ b/block/blk-mq-tag.h @@ -33,8 +33,6 @@ extern int blk_mq_tag_update_depth(struct blk_mq_hw_ctx *hctx, struct blk_mq_tags **tags, unsigned int depth, bool can_grow); extern void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool); -void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_iter_fn *fn, - void *priv); static inline struct sbq_wait_state *bt_wait_ptr(struct sbitmap_queue *bt, struct blk_mq_hw_ctx *hctx) diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index b0c814bcc7e3..a64b3fdce0b0 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -321,6 +321,8 @@ bool blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async); void blk_mq_run_hw_queues(struct request_queue *q, bool async); void blk_mq_tagset_busy_iter(struct blk_mq_tag_set *tagset, busy_tag_iter_fn *fn, void *priv); +void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_iter_fn *fn, + void *priv); void blk_mq_freeze_queue(struct request_queue *q); void blk_mq_unfreeze_queue(struct request_queue *q); void blk_freeze_queue_start(struct request_queue *q); -- 2.14.4
