Re: [PATCH 2/2] mm/rmap: Improve mlock tracking for large folios

David Hildenbrand
2025-09-18T11:31:15Z

On 18.09.25 13:21, kirill@shutemov.name wrote:
> From: Kiryl Shutsemau <kas@kernel.org>
>
> The kernel currently does not mlock large folios when adding them to
> rmap, stating that it is difficult to confirm that the folio is fully
> mapped and safe to mlock it. However, nowadays the caller passes a
> number of pages of the folio that are getting mapped, making it easy to
> check if the entire folio is mapped to the VMA.
>
> mlock the folio on rmap if it is fully mapped to the VMA.
>
> Signed-off-by: Kiryl Shutsemau <kas@kernel.org>
> ---

Acked-by: David Hildenbrand <david@redhat.com>

--
Cheers

David / dhildenb