Re: [PATCH v6 1/5] mm/zone_device: Reinitialize large zone device private folios

Alistair Popple
2026-01-22T22:53:48Z

On 2026-01-23 at 08:41 +1100, Andrew Morton <akpm@linux-foundation.org> wrote...
> On Thu, 22 Jan 2026 20:10:44 +1100 Balbir Singh <balbirs@nvidia.com> wrote:
>
> > >> - Intel has demonstrated that this works and is still getting blocked.
> > >>
> > >> - This entire thread is about a fixes patch for large device pages.
> > >> Changing prep_compound_page is completely out of scope for a fixes
> > >> patch, and honestly so is most of the rest of what’s being proposed.
> > >
> > > FWIW I'm ok if this lands as a fix patch, and perceived the discussion to be
> > > about how refactor things more properly afterwards, going forward.
> > >
> >
> > I've said the same thing and I concur, we can use the patch as-is and
> > change this to set the relevant identified fields after 6.19
>
> So the plan is to add this patch to 6.19-rc and take another look at
> patches [2-5] during next -rc cycle?

I'm ok with this as a a quick fix, and happy to take a look at cleaning this up
in the next cycle or two as it's been on my TODO list for a while anyway.

> I think the plan is to take Matthew's work via the DRM tree? But if people
> want me to patchbunny this fix then please lmk.
>
> I presently have
>
> Signed-off-by: Matthew Brost <matthew.brost@intel.com>
> Signed-off-by: Francois Dugast <francois.dugast@intel.com>
> Acked-by: Felix Kuehling <felix.kuehling@amd.com>
> Reviewed-by: Balbir Singh <balbirs@nvidia.com>
>
> If people wish to add to this then please do so.
>
> I'll restore this patch into mm.git's hotfix branch (and hence
> linux-next) because testing.