linux-kernel - Re: [PATCH 05/12] mm: page_alloc: squash page_is

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Date:   Tue, 9 May 2023 09:43:45 -0700
From:   Mike Rapoport <rppt@...nel.org>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        David Hildenbrand <david@...hat.com>,
        Oscar Salvador <osalvador@...e.de>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 05/12] mm: page_alloc: squash page_is_consistent()

On Mon, May 08, 2023 at 03:11:53PM +0800, Kefeng Wang wrote:
> Squash the page_is_consistent() into bad_range() as there is
> only one caller.
> 
> Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>

Reviewed-by: Mike Rapoport (IBM) <rppt@...nel.org>

> ---
>  mm/page_alloc.c | 9 +--------
>  1 file changed, 1 insertion(+), 8 deletions(-)
> 
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 9a85238f1140..348dcbaca757 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -517,13 +517,6 @@ static int page_outside_zone_boundaries(struct zone *zone, struct page *page)
>  	return ret;
>  }
>  
> -static int page_is_consistent(struct zone *zone, struct page *page)
> -{
> -	if (zone != page_zone(page))
> -		return 0;
> -
> -	return 1;
> -}
>  /*
>   * Temporary debugging check for pages not lying within a given zone.
>   */
> @@ -531,7 +524,7 @@ static int __maybe_unused bad_range(struct zone *zone, struct page *page)
>  {
>  	if (page_outside_zone_boundaries(zone, page))
>  		return 1;
> -	if (!page_is_consistent(zone, page))
> +	if (zone != page_zone(page))
>  		return 1;
>  
>  	return 0;
> -- 
> 2.35.3
>