Re: [PATCH v3] page_alloc: allow migration of smaller hugepages during contig_alloc.

[David Hildenbrand]

On 24.10.25 21:28, Gregory Price wrote:
> We presently skip regions with hugepages entirely when trying to do
> contiguous page allocation.  Instead, if hugepage migration is enabled,
> consider regions with hugepages smaller than the target contiguous
> allocation request as valid targets for allocation.
>
> isolate_migrate_pages_block() already expects requests with hugepages
> to originate from alloc_contig, and hugetlb code also does a migratable
> check when isolating in folio_isolate_hugetlb().
>
> Suggested-by: David Hildenbrand <david@xxxxxxxxxx>
> Signed-off-by: Gregory Price <gourry@xxxxxxxxxx>
> Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>
> Reviewed-by: Wei Yang <richard.weiyang@xxxxxxxxx>
> ---

Nit: trailing "." in subject

Acked-by: David Hildenbrand <david@xxxxxxxxxx>

--
Cheers

David / dhildenb