blk-mq: add blk_mq_start_stopped_hw_queue()
We have a variant for all hardware queues, but not one for a single
hardware queue.
Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 90db5b4..c993476 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1064,18 +1064,23 @@ void blk_mq_start_hw_queues(struct request_queue *q)
}
EXPORT_SYMBOL(blk_mq_start_hw_queues);
+void blk_mq_start_stopped_hw_queue(struct blk_mq_hw_ctx *hctx, bool async)
+{
+ if (!blk_mq_hctx_stopped(hctx))
+ return;
+
+ clear_bit(BLK_MQ_S_STOPPED, &hctx->state);
+ blk_mq_run_hw_queue(hctx, async);
+}
+EXPORT_SYMBOL_GPL(blk_mq_start_stopped_hw_queue);
+
void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async)
{
struct blk_mq_hw_ctx *hctx;
int i;
- queue_for_each_hw_ctx(q, hctx, i) {
- if (!blk_mq_hctx_stopped(hctx))
- continue;
-
- clear_bit(BLK_MQ_S_STOPPED, &hctx->state);
- blk_mq_run_hw_queue(hctx, async);
- }
+ queue_for_each_hw_ctx(q, hctx, i)
+ blk_mq_start_stopped_hw_queue(hctx, async);
}
EXPORT_SYMBOL(blk_mq_start_stopped_hw_queues);
