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nvme-rdma: Make sure to shutdown the controller if we can

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Relying on ctrl state in nvme_rdma_shutdown_ctrl is wrong because
it will never be NVME_CTRL_LIVE (delete_ctrl or reset_ctrl invoked it).

Instead, check that the admin queue is connected. Note that it is safe
because we can never see a copmeting thread trying to destroy the admin
queue (reset or delete controller).

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sagi Grimberg 2016-07-24 09:26:16 +03:00
parent a159c64d93
commit 45862ebcc4
1 changed files with 1 additions and 1 deletions
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2
drivers/nvme/host/rdma.c
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@ -1646,7 +1646,7 @@ static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_ctrl *ctrl)
nvme_rdma_free_io_queues(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); nvme_shutdown_ctrl(&ctrl->ctrl);
blk_mq_stop_hw_queues(ctrl->ctrl.admin_q); blk_mq_stop_hw_queues(ctrl->ctrl.admin_q);