[PATCH] NVMe: do not touch sq door bell if nvmeq has been suspended

[Sagi Grimberg]

Hey Keith,

>> First of all, I think we need to cancel all
>> inflight requests before nvme_dev_unmap.
>
> IO cancelling is where it is because it protects against host memory
> corruption. If you're going to mess with the ordering, just make sure
> the PCI device is disabled from bus mastering first.

Little help? :)

What corruption is the ordering protecting against?