nvme-pci: Don't disable on timeout in reset state

The reset state doesn't dispatch commands that it needs to wait for
anymore. If a timeout occurs in this state, the reset work is already
disabling the controller, so just reset the request's timer.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index d4e4421..c727553 100644 (file)
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1298,13 +1298,14 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
                shutdown = true;
                /* fall through */
        case NVME_CTRL_CONNECTING:
-       case NVME_CTRL_RESETTING:
                dev_warn_ratelimited(dev->ctrl.device,
                         "I/O %d QID %d timeout, disable controller\n",
                         req->tag, nvmeq->qid);
                nvme_dev_disable(dev, shutdown);
                nvme_req(req)->flags |= NVME_REQ_CANCELLED;
                return BLK_EH_DONE;
+       case NVME_CTRL_RESETTING:
+               return BLK_EH_RESET_TIMER;
        default:
                break;
        }