On Tue, Jan 7, 2020 at 11:46 AM Dan Williams <dan.j.williams(a)intel.com> wrote:
> I'd say deprecate the
> kernel automounting partitions, but I guess it already does that, and
Ok, now I don't know why automounting is leaking into this discussion?
> removing it would break /something/.
Yes, the breakage risk is anyone that was using ext4 mount failure as
a dax capability detector.
> I guess you could put
> "/dev/pmemXpY" on the deprecation schedule.
...but why deprecate /dev/pmemXpY partitions altogether? If someone
doesn't care about dax then they can do all the legacy block things.
If they do care about dax then work with whole device namespaces.
Circling back on this point now that I understand what you meant by
automount. It would need to be a full deprecation of /dev/pmemXpY
devices if kpartx dax support is going to fully take over for people
that want to use disk partition tables instead of EFI Namespace Labels
to carve up pmem.