It is handy to use the two helpers for switching backend file in loop driver, so export them.
Signed-off-by: Ming Lei <[email protected]> --- block/blk-mq.c | 4 +++- block/blk-mq.h | 1 - include/linux/blk-mq.h | 2 ++ 3 files changed, 5 insertions(+), 2 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index fbd7c7b..30d673a 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -135,8 +135,9 @@ void blk_mq_freeze_queue(struct request_queue *q) blk_mq_freeze_queue_start(q); blk_mq_freeze_queue_wait(q); } +EXPORT_SYMBOL(blk_mq_freeze_queue); -static void blk_mq_unfreeze_queue(struct request_queue *q) +void blk_mq_unfreeze_queue(struct request_queue *q) { bool wake; @@ -149,6 +150,7 @@ static void blk_mq_unfreeze_queue(struct request_queue *q) wake_up_all(&q->mq_freeze_wq); } } +EXPORT_SYMBOL(blk_mq_unfreeze_queue); bool blk_mq_can_queue(struct blk_mq_hw_ctx *hctx) { diff --git a/block/blk-mq.h b/block/blk-mq.h index 206230e..1bc1be9 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -27,7 +27,6 @@ struct blk_mq_ctx { void __blk_mq_complete_request(struct request *rq); void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async); -void blk_mq_freeze_queue(struct request_queue *q); void blk_mq_free_queue(struct request_queue *q); void blk_mq_clone_flush_request(struct request *flush_rq, struct request *orig_rq); diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 8aded9a..a855a69 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -212,6 +212,8 @@ 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); void blk_mq_tag_busy_iter(struct blk_mq_hw_ctx *hctx, busy_iter_fn *fn, void *priv); +void blk_mq_freeze_queue(struct request_queue *q); +void blk_mq_unfreeze_queue(struct request_queue *q); /* * Driver command data is immediately after the request. So subtract request -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
