[PATCH] Revert "nvme: create 'slaves' and 'holders' entries for hidden controllers"

[Keith Busch]

On Wed, Mar 07, 2018 at 02:40:39PM +0100, Hannes Reinecke wrote:
> The nice thing about the holders/slave is that one can discover the
> topology, and potentially figure out any issues (like one path going
> down etc).

I also thought the sysfs hierarchy was useful, but it sounds like causes
more problems than it solves. :(

> How do we detect the topology now?
> Does nvme cli has the functionality?

Not in the way you'd probably like. It can provide all the information
you'd need to put it together, but it doesn't provide a convenient
method to get or visualize it. I'll add a note on the project to fix
that.