Re: [PATCH v1 17/36] mm/pagewalk: drop nth_page() usage within folio in folio_walk_start()

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* David Hildenbrand <david@xxxxxxxxxx> [250827 18:07]:
> It's no longer required to use nth_page() within a folio, so let's just
> drop the nth_page() in folio_walk_start().
> 
> Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>

Reviewed-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>

> ---
>  mm/pagewalk.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/pagewalk.c b/mm/pagewalk.c
> index c6753d370ff4e..9e4225e5fcf5c 100644
> --- a/mm/pagewalk.c
> +++ b/mm/pagewalk.c
> @@ -1004,7 +1004,7 @@ struct folio *folio_walk_start(struct folio_walk *fw,
>  found:
>  	if (expose_page)
>  		/* Note: Offset from the mapped page, not the folio start. */
> -		fw->page = nth_page(page, (addr & (entry_size - 1)) >> PAGE_SHIFT);
> +		fw->page = page + ((addr & (entry_size - 1)) >> PAGE_SHIFT);
>  	else
>  		fw->page = NULL;
>  	fw->ptl = ptl;
> -- 
> 2.50.1
> 




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