linux-kernel - Re: [PATCH 4/8] mm: memory-failure: use local variable huge to check hugetlb page

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Message-ID: <20230710075704.GD1686200@ik1-406-35019.vs.sakura.ne.jp>
Date:   Mon, 10 Jul 2023 16:57:04 +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 4/8] mm: memory-failure: use local variable huge to check
 hugetlb page

On Sat, Jul 08, 2023 at 04:57:40PM +0800, Miaohe Lin wrote:
> Use local variable huge to check whether page is hugetlb page to avoid
> calling PageHuge() multiple times to save cpu cycles. PageHuge() will
> be stable while extra page refcnt is held.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>

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