linux-kernel - Re: [PATCH v2 1/8] mm: memory-failure: remove unneeded PageHuge() check

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Date:   Tue, 11 Jul 2023 18:00:54 +0900
From:   Naoya Horiguchi <naoya.horiguchi@...ux.dev>
To:     Miaohe Lin <linmiaohe@...wei.com>
Cc:     akpm@...ux-foundation.org, naoya.horiguchi@....com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/8] mm: memory-failure: remove unneeded PageHuge()
 check

On Tue, Jul 11, 2023 at 01:50:09PM +0800, Miaohe Lin wrote:
> PageHuge() check in me_huge_page() is just for potential problems. Remove
> it as it's actually dead code and won't catch anything.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>

Thank you for updating.

Acked-by: Naoya Horiguchi <naoya.horiguchi@....com>

> ---
>  mm/memory-failure.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/mm/memory-failure.c b/mm/memory-failure.c
> index 64d7d34c177a..913fcf02ad38 100644
> --- a/mm/memory-failure.c
> +++ b/mm/memory-failure.c
> @@ -1187,9 +1187,6 @@ static int me_huge_page(struct page_state *ps, struct page *p)
>  	struct address_space *mapping;
>  	bool extra_pins = false;
>  
> -	if (!PageHuge(hpage))
> -		return MF_DELAYED;
> -
>  	mapping = page_mapping(hpage);
>  	if (mapping) {
>  		res = truncate_error_page(hpage, page_to_pfn(p), mapping);
> -- 
> 2.33.0
> 
> 
>