Re: [PATCH 6/8] mm/memory-failure.c: rework the try_to_unmap logic in hwpoison_user_mappings()

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To: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: Re: [PATCH 6/8] mm/memory-failure.c: rework the try_to_unmap logic in hwpoison_user_mappings()
From: Naoya Horiguchi <naoya.horiguchi@xxxxxxxxx>
Date: Mon, 14 Feb 2022 23:51:00 +0900
Cc: akpm@xxxxxxxxxxxxxxxxxxxx, naoya.horiguchi@xxxxxxx, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20220210141733.1908-7-linmiaohe@huawei.com>
References: <20220210141733.1908-1-linmiaohe@huawei.com> <20220210141733.1908-7-linmiaohe@huawei.com>

On Thu, Feb 10, 2022 at 10:17:31PM +0800, Miaohe Lin wrote:
> Only for hugetlb pages in shared mappings, try_to_unmap should take
> semaphore in write mode here. Rework the code to make it clear.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>

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

References:
- [PATCH 0/8] mm/memory-failure.c: A few cleanup patches for memory failure
  - From: Miaohe Lin
- [PATCH 6/8] mm/memory-failure.c: rework the try_to_unmap logic in hwpoison_user_mappings()
  - From: Miaohe Lin

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