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Date:   Tue, 6 Jun 2023 18:50:58 +0100
From:   Matthew Wilcox <willy@infradead.org>
To:     Peng Zhang <zhangpeng362@huawei.com>
Cc:     linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        akpm@linux-foundation.org, mike.kravetz@oracle.com,
        muchun.song@linux.dev, sidhartha.kumar@oracle.com,
        vishal.moola@gmail.com, wangkefeng.wang@huawei.com,
        sunnanyong@huawei.com, Muchun Song <songmuchun@bytedance.com>
Subject: Re: [PATCH v2 2/3] mm/hugetlb: Use a folio in hugetlb_wp()
Message-ID: <ZH9yAlVDk7POqgTv@casper.infradead.org>
References: <20230606062013.2947002-1-zhangpeng362@huawei.com>
 <20230606062013.2947002-3-zhangpeng362@huawei.com>
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On Tue, Jun 06, 2023 at 02:20:12PM +0800, Peng Zhang wrote:
> From: ZhangPeng <zhangpeng362@huawei.com>
> 
> We can replace nine implict calls to compound_head() with one by using
> old_folio. The page we get back is always a head page, so we just
> convert old_page to old_folio.
> 
> Suggested-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
> Reviewed-by: Muchun Song <songmuchun@bytedance.com>
> Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>

Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>