[PATCH] nvme: introduce passthrough ioctl for multipath

[Christoph Hellwig]

On Wed, Feb 17, 2021 at 11:14:55AM +0900, Minwoo Im wrote:
> > A container could read data from namespaces assigned to a different
> > container.
> 
> Now I got your point! Thanks Keith, please ignore this patch :)

Note that Javier has been working on exposing access to namespaces
with unsupported command sets for ioctls.  If that is what you are
looking for.