> > > diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c > > > index 0eb79696fb73..354cce8853c1 100644 > > > --- a/drivers/nvme/host/rdma.c > > > +++ b/drivers/nvme/host/rdma.c > > > @@ -918,6 +918,7 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new) > > > goto out_cleanup_tagset; > > > if (!new) { > > > + nvme_start_freeze(&ctrl->ctrl); > > > nvme_unquiesce_io_queues(&ctrl->ctrl); > > > if (!nvme_wait_freeze_timeout(&ctrl->ctrl, NVME_IO_TIMEOUT)) { > > > /* > > > @@ -926,6 +927,7 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new) > > > * to be safe. > > > */ > > > ret = -ENODEV; > > > + nvme_unfreeze(&ctrl->ctrl); > > > > What does this unfreeze designed to do? > > It is for undoing the previous nvme_start_freeze. ok.