Re: [PATCH v6 01/13] mm/migrate_device: Introduce migrate_pfn_from_page() helper

[Jordan Niethe]

Hi,

On 28/2/26 08:11, David Hildenbrand (Arm) wrote:
> On 2/2/26 12:36, Jordan Niethe wrote:
> > To create a migrate entry from a given struct page, that page is first
> > converted to its pfn, before passing the pfn to migrate_pfn().
> >
> > A future change will remove device private pages from the physical
> > address space. This will mean that device private pages no longer have a
> > pfn and must be handled separately.
> >
> > Prepare for this with a new helper:
> >
> >      - migrate_pfn_from_page()
> >
> > This helper takes a struct page as parameter instead of a pfn. This will
> > allow more flexibility for handling the mpfn differently for device
> > private pages.
> >
> > Reviewed-by: Balbir Singh <balbirs@xxxxxxxxxx>
> > Acked-by: Felix Kuehling <felix.kuehling@xxxxxxx>
> > Signed-off-by: Jordan Niethe <jniethe@xxxxxxxxxx>
> > ---
>
> Acked-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>

Thanks David,
Jordan.

>