Re: [PATCH v8 3/4] kselftest: mm: integrate huge page checks

[Baolin Wang]

On 9/25/26 3:11 AM, Yeoreum Yun wrote:
> check_large_folios() only checks for large folios without distinguishing
> between anonymous and file-backed huge pages.
>
> To add huge page type checking, integrate the huge page checks into
> __check_huge():
>
>    1. If hpage_size == pmd_pagesize, check PAGE_IS_HUGE instead of using
>       check_large_folios(), since only the mapping type matters. This
>       identifies PMD-mapped huge pages.
>
>    2. Otherwise, use check_large_folios() to detect large folios. This
>       covers mTHP cases.
>
>    3. Check the folio flags according to the huge page type.
>
> Suggested-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>
> Suggested-by: Zi Yan <ziy@xxxxxxxxxx>
> Signed-off-by: Yeoreum Yun <yeoreum.yun@xxxxxxx>
> ---

LGTM, with nits from Sarthak addressed,
Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Tested-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>