Re: [PATCH 2/3] mm: memory-failure: avoid pfn_valid() twice in soft_offline_page()

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To: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: Re: [PATCH 2/3] mm: memory-failure: avoid pfn_valid() twice in soft_offline_page()
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Date: Tue, 25 Oct 2022 10:55:03 +0800
Cc: <linux-mm@xxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, Naoya Horiguchi <naoya.horiguchi@xxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
In-reply-to: <20221021084611.53765-2-wangkefeng.wang@huawei.com>
References: <20221021084611.53765-1-wangkefeng.wang@huawei.com> <20221021084611.53765-2-wangkefeng.wang@huawei.com>
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0

On 2022/10/21 16:46, Kefeng Wang wrote:
> Simplify WARN_ON_ONCE(flags & MF_COUNT_INCREASED) under !pfn_valid().
> 
> Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>

Reviewed-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>

Thanks,
Miaohe Lin

References:
- [PATCH 1/3] mm: memory-failure: make put_ref_page() more useful
  - From: Kefeng Wang
- [PATCH 2/3] mm: memory-failure: avoid pfn_valid() twice in soft_offline_page()
  - From: Kefeng Wang

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