[PATCH] nvme-multipath: add an 'ana_groups_only' module option

[Christoph Hellwig]

On Wed, Feb 09, 2022 at 09:49:16AM +0100, Hannes Reinecke wrote:
> How so?
> I'm just reverting the check; instead of having the nsid listed in the ana 
> log page and check for a match between the nsids we now check for a match 
> between the group id in the ana log page and the ana grpid from the 
> 'identify namespace' output.
> So I'm still able to identify which namespace this change belongs to.

And how this this catching namespaces that move between ANA groups?

How does it deal with the hang fixed by Anton in commit af8fd0424713?