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-rw-r--r--block/blk-mq-tag.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index 230ef3056b72..eb55492e6875 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -254,6 +254,13 @@ static int bt_get(struct blk_mq_alloc_data *data,
if (tag != -1)
break;
+ /*
+ * We're out of tags on this hardware queue, kick any
+ * pending IO submits before going to sleep waiting for
+ * some to complete.
+ */
+ blk_mq_run_hw_queue(hctx, false);
+
blk_mq_put_ctx(data->ctx);
io_schedule();