Re: [PATCH 3/5] nvme-rdma: Make sure to shutdown the controller if we can

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diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index a70eb3cbf656..641ab7f91899 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1644,7 +1644,7 @@ static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_ctrl *ctrl)
 		nvme_rdma_free_io_queues(ctrl);
 	}

-	if (ctrl->ctrl.state == NVME_CTRL_LIVE)
+	if (test_bit(NVME_RDMA_Q_CONNECTED, &ctrl->queues[0].flags))
 		nvme_shutdown_ctrl(&ctrl->ctrl);

 	blk_mq_stop_hw_queues(ctrl->ctrl.admin_q);

Maybe the right way to handle this is to unconditionally call
nvme_shutdown_ctrl and make sure we return an early error
on the register write?

As I wrote on patch 2/5 reply, I'd like to avoid depending on
queue_rq to fail early peeking at the ctrl state. This dependency
can grow in the future and I think we should at least try not to
go there...
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