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Subject: Re: [PATCH 1/4] mm: hugetlb: use flush_hugetlb_tlb_range() in
 move_hugetlb_page_tables()
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From:   Muchun Song <muchun.song@linux.dev>
In-Reply-To: <20230731074829.79309-2-wangkefeng.wang@huawei.com>
Date:   Tue, 1 Aug 2023 10:06:30 +0800
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Mike Kravetz <mike.kravetz@oracle.com>,
        Mina Almasry <almasrymina@google.com>, kirill@shutemov.name,
        joel@joelfernandes.org, william.kucharski@oracle.com,
        kaleshsingh@google.com, linux-mm@kvack.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
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References: <20230731074829.79309-1-wangkefeng.wang@huawei.com>
 <20230731074829.79309-2-wangkefeng.wang@huawei.com>
To:     Kefeng Wang <wangkefeng.wang@huawei.com>
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> On Jul 31, 2023, at 15:48, Kefeng Wang <wangkefeng.wang@huawei.com> =
wrote:
>=20
> Archs may need to do special things when flushing hugepage tlb,
> so use the more applicable flush_hugetlb_tlb_range() instead of
> flush_tlb_range().
>=20
> Fixes: 550a7d60bd5e ("mm, hugepages: add mremap() support for hugepage =
backed vma")
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>

Acked-by: Muchun Song <songmuchun@bytedance.com>