[PATCH] nvme: retrigger ANA log update if group descriptor isn't found

[Christoph Hellwig]

On Mon, Dec 07, 2020 at 07:31:21AM -0800, Keith Busch wrote:
> On Sat, Dec 05, 2020 at 04:29:01PM +0100, Hannes Reinecke wrote:
> > If ANA is enabled but no ANA group descriptor is found when creating
> > a new namespace the ANA log is most likely out of date, so trigger
> > a re-read. The namespace will be tagged with the NS_ANA_PENDING flag
> > to exclude it from path selection until the ANA log has been re-read.
> > 
> > Reported-by: Martin George <marting at netapp.com>
> > Signed-off-by: Hannes Reinecke <hare at suse.de>
> 
> This looks good to me.
> 
> Reviewed-by: Keith Busch <kbusch at kernel.org>

But as I just outlined it just papers over buggy controllers.  I really
don't think we should just silently do that.