Re: [PATCH v2 3/5] mm/huge_memory: add page->private check back in __split_folio_to_order()

[Zi Yan]

On 9 Jul 2026, at 4:03, Vlastimil Babka (SUSE) wrote:

> On 7/3/26 15:47, Zi Yan wrote:
>> page->private should not be set in tail pages. Commit 4265d67e405a
>> ("mm/migrate_device: add THP splitting during migration") removed it
>
> I would say e.g. "a DEBUG_VM check" instead of "it"

Will change it in the next version.

>
>> without a proper reason[1]. Add it back.
>>
>> Link: https://lore.kernel.org/all/13f3fcda-7328-4aa5-afc6-75a294a82b2a@xxxxxxxxxx/ [1]
>> Reviewed-by: Lance Yang <lance.yang@xxxxxxxxx>
>> Signed-off-by: Zi Yan <ziy@xxxxxxxxxx>
>
> Reviewed-by: Vlastimil Babka (SUSE) <vbabka@xxxxxxxxxx>

Thanks.

Best Regards,
Yan, Zi