Re: [v7 11/16] mm/migrate_device: add THP splitting during migration

[David Hildenbrand (Arm)]

> index 8c95a658b3ec..022b0729f826 100644
> --- a/mm/huge_memory.c
> +++ b/mm/huge_memory.c
> @@ -3463,15 +3463,6 @@ static void __split_folio_to_order(struct folio *folio, int old_order,
>   		new_folio->mapping = folio->mapping;
>   		new_folio->index = folio->index + i;
>   
> -		/*
> -		 * page->private should not be set in tail pages. Fix up and warn once
> -		 * if private is unexpectedly set.
> -		 */
> -		if (unlikely(new_folio->private)) {
> -			VM_WARN_ON_ONCE_PAGE(true, new_head);
> -			new_folio->private = NULL;
> -		}
> -

Balbir, why did you drop this check?

--
Cheers,

David