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

[Andrew Morton]

On Thu, 22 Jan 2026 20:10:44 +1100 Balbir Singh <balbirs at 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 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 at intel.com>
Signed-off-by: Francois Dugast <francois.dugast at intel.com>
Acked-by: Felix Kuehling <felix.kuehling at amd.com>
Reviewed-by: Balbir Singh <balbirs at 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.