Re: [PATCH 1/2] mm/huge_memory: remove unused can_split_folio()

[Lorenzo Stoakes (ARM)]

On Thu, Jul 16, 2026 at 11:03:44AM +0100, Kiryl Shutsemau wrote:
> From: "Kiryl Shutsemau (Meta)" <kas@xxxxxxxxxx>
>
> can_split_folio() has no callers and no definition under
> CONFIG_TRANSPARENT_HUGEPAGE; only the !THP stub remains, left behind by an
> earlier cleanup.  Remove it.
>
> No functional change.
>
> Signed-off-by: Kiryl Shutsemau (Meta) <kas@xxxxxxxxxx>

LGTM, so:

Reviewed-by: Lorenzo Stoakes (ARM) <ljs@xxxxxxxxxx>

> ---
>  include/linux/huge_mm.h | 5 -----
>  1 file changed, 5 deletions(-)
>
> diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
> index ad20f7f8c179..6961db4d1591 100644
> --- a/include/linux/huge_mm.h
> +++ b/include/linux/huge_mm.h
> @@ -621,11 +621,6 @@ thp_get_unmapped_area_vmflags(struct file *filp, unsigned long addr,
>  	return 0;
>  }
>
> -static inline bool
> -can_split_folio(struct folio *folio, int caller_pins, int *pextra_pins)
> -{
> -	return false;
> -}
>  static inline int
>  split_huge_page_to_list_to_order(struct page *page, struct list_head *list,
>  		unsigned int new_order)
> --
> 2.54.0
>

Cheers, Lorenzo