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Subject: Re: [PATCH 2/2] riscv: Enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP
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From:   Muchun Song <muchun.song@linux.dev>
In-Reply-To: <20221023133205.3493564-3-guoren@kernel.org>
Date:   Mon, 24 Oct 2022 15:07:22 +0800
Cc:     palmer@dabbelt.com, palmer@rivosinc.com, heiko@sntech.de,
        arnd@arndb.de, Muchun Song <songmuchun@bytedance.com>,
        catalin.marinas@arm.com, chenhuacai@loongson.cn,
        Conor.Dooley@microchip.com, paul.walmsley@sifive.com,
        aou@eecs.berkeley.edu, linux-arch@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
        linux-mm@kvack.org, Guo Ren <guoren@linux.alibaba.com>
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> On Oct 23, 2022, at 21:32, guoren@kernel.org wrote:
>=20
> From: Guo Ren <guoren@linux.alibaba.com>
>=20
> This patch enable the feature of "free some vmemmap pages of HugeTLB

We have a new name =E2=80=9CHVO" to refer to this feature. So I=E2=80=99d =
like to rewrite
The changelog to something like =E2=80=9CEnable HVO [1] for RISCV=E2=80=9D=
.

> page" [1]. To make it work correct, we also need fixup PG_dcache_clean
> setting for huge page [2].
>=20
> [1] =
https://lore.kernel.org/linux-doc/20210510030027.56044-1-songmuchun@byteda=
nce.com/
> [2] =
https://lore.kernel.org/linux-mm/20220302084624.33340-1-songmuchun@bytedan=
ce.com/
>=20
> Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
> Signed-off-by: Guo Ren <guoren@kernel.org>
> Cc: Muchun Song <songmuchun@bytedance.com>
> Cc: Huacai Chen <chenhuacai@loongson.cn>
> Cc: Arnd Bergmann <arnd@arndb.de>

I=E2=80=99am really glad to see more and more arches for support HVO.

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

Thanks.