linux-kernel - Re: [PATCH] mm/thp: simplify has_transparent_hugepage by using IS

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Date:   Mon, 29 Aug 2022 11:57:49 +0200
From:   David Hildenbrand <david@...hat.com>
To:     Liu Shixin <liushixin2@...wei.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Hugh Dickins <hughd@...gle.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] mm/thp: simplify has_transparent_hugepage by using
 IS_BUILTIN

On 29.08.22 11:57, Liu Shixin wrote:
> Simplify code of has_transparent_hugepage define by using IS_BUILTIN.
> 
> No functional change.
> 
> Signed-off-by: Liu Shixin <liushixin2@...wei.com>
> ---
>  include/linux/pgtable.h | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
> index 73fb1b2af795..a108b60a6962 100644
> --- a/include/linux/pgtable.h
> +++ b/include/linux/pgtable.h
> @@ -1610,11 +1610,7 @@ typedef unsigned int pgtbl_mod_mask;
>  #endif
>  
>  #ifndef has_transparent_hugepage
> -#ifdef CONFIG_TRANSPARENT_HUGEPAGE
> -#define has_transparent_hugepage() 1
> -#else
> -#define has_transparent_hugepage() 0
> -#endif
> +#define has_transparent_hugepage() IS_BUILTIN(CONFIG_TRANSPARENT_HUGEPAGE)
>  #endif
>  
>  /*

Reviewed-by: David Hildenbrand <david@...hat.com>

-- 
Thanks,

David / dhildenb