[PATCH 2/3] nvme: enable uring-passthrough for admin commands

[Christoph Hellwig]

On Tue, May 17, 2022 at 11:01:46AM +0530, Kanchan Joshi wrote:
> Add a new opcode NVME_URING_CMD_ADMIN that userspace can use.
> Wire up support for the case when this is issued over generic char
> device node (/dev/ngXnY).

I would really prefer not adding this to the per-namespaces nodes.
The do something controller specific on the namespace node patter is
a massive pain both in terms of code and semantics.