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nvme-rdma: stop auth work after tearing down queues in error recovery 

when starting error recovery there might be a authentication work
running, and it involves I/O commands. Given the controller is tearing
down there is no chance for the I/O to complete other than timing out
which may unnecessarily take a full io timeout.

So first tear down the queues, fail/cancel all inflight I/O (including
potentially authentication) and only then stop authentication. This
ensures that failover is not stalled due to blocked authentication I/O.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sagi Grimberg 2022-11-13 13:24:24 +02:00 committed by Christoph Hellwig
parent 1f1a4f8956
commit 91c11d5f32
1 changed files with 1 additions and 1 deletions
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2
drivers/nvme/host/rdma.c
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@ -1153,13 +1153,13 @@ static void nvme_rdma_error_recovery_work(struct work_struct *work)
struct nvme_rdma_ctrl *ctrl = container_of(work,
struct nvme_rdma_ctrl, err_work);
nvme_auth_stop(&ctrl->ctrl);
nvme_stop_keep_alive(&ctrl->ctrl);
flush_work(&ctrl->ctrl.async_event_work);
nvme_rdma_teardown_io_queues(ctrl, false);
nvme_start_queues(&ctrl->ctrl);
nvme_rdma_teardown_admin_queue(ctrl, false);
nvme_start_admin_queue(&ctrl->ctrl);
nvme_auth_stop(&ctrl->ctrl);
if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_CONNECTING)) {
/* state change failure is ok if we started ctrl delete */