[PATCH 2/2] nvme-pci: don't wait freeze during resetting

[Ming Lei <ming.lei@redhat.com>]

First it isn't necessary to call nvme_wait_freeze in nvme_reset_work().
If tagset isn't allocated, there can't be any inflight IOs; otherwise
blk_mq_update_nr_hw_queues can freeze & wait queues.

Second, since commit bdd6316094e0 ("block: Allow unfreezing of a queue
while requests are in progress"), it is fine to unfreeze queue without
draining inflight IOs.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
 drivers/nvme/host/pci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 3a1c37f32f30..91b2903fcc24 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2910,7 +2910,6 @@ static void nvme_reset_work(struct work_struct *work)
 		nvme_free_tagset(dev);
 	} else {
 		nvme_start_queues(&dev->ctrl);
-		nvme_wait_freeze(&dev->ctrl);
 		if (!dev->ctrl.tagset)
 			nvme_pci_alloc_tag_set(dev);
 		else
-- 
2.31.1