When allocate sq in nvme_create_queue return -EINTR, it means the
allocate sq command times out and is completed with NVME_REQ_CANCELLED.
At the moment, the controller has been disabled and admin request
queue has been quiesced. Don't send delete cq command, otherwise,
it will incur io hang.
Signed-off-by: Jianchao Wang <jianchao.w.w...@oracle.com>
---
drivers/nvme/host/pci.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 70b79f2..4ce1c89 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1478,7 +1478,15 @@ static int nvme_create_queue(struct nvme_queue *nvmeq,
int qid)
goto out;
result = adapter_alloc_sq(dev, qid, nvmeq);
- if (result < 0)
+ /*
+ * If return -EINTR, it means the allocate sq command times out and is
completed
+ * with NVME_REQ_CANCELLED. At the time, the controller has been
disabled
+ * and admin request queue has been quiesced. So don't try to send
delete cq
+ * command any more.
+ */
+ if (result == -EINTR)
+ goto out;
+ else if (result < 0)
goto release_cq;
/*
--
2.7.4
