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Mon, 24 Oct 2022 01:03:04 -0700 (PDT) X-Gm-Message-State: ACrzQf08ulC6UumURedrLq9CLjLyemB6v8oEsU90UkiL8VYFtmcl+NaB IU6uNMTb0ritKc8K/2JNQkc2kNbxI71wTWG4sV8= X-Google-Smtp-Source: AMsMyM4opuf9ZlLlQKT18CpSvfe9XotBrtNnzZrG6O6GBcHpNVvd4QnPrdeLYevOyANG4WDlsZD5B1GA8zDQRLU5blc= X-Received: by 2002:a05:6808:14cf:b0:355:5204:dd81 with SMTP id f15-20020a05680814cf00b003555204dd81mr15684588oiw.112.1666598583325; Mon, 24 Oct 2022 01:03:03 -0700 (PDT) MIME-Version: 1.0 References: <20221023133205.3493564-1-guoren@kernel.org> <20221023133205.3493564-3-guoren@kernel.org> <1F5AF29D-708A-483B-A29F-CAEE6F554866@linux.dev> In-Reply-To: <1F5AF29D-708A-483B-A29F-CAEE6F554866@linux.dev> From: Guo Ren Date: Mon, 24 Oct 2022 16:02:51 +0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH 2/2] riscv: Enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP To: Muchun Song Cc: palmer@dabbelt.com, palmer@rivosinc.com, heiko@sntech.de, arnd@arndb.de, Muchun Song , 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 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1666598586; a=rsa-sha256; cv=none; b=eulc3+4k27eqcI4jhaDETxi+mCy7GA1im8k/mvGMczeSpGZn8TWFjeXA++6jx5wzC2AXc3 FDHGO362FbpfyvblfZ6D/tveTdfSRcxa8vgCyGJzW400mW6tQo+yg2DUSo128cwKl0qkpb 8G8D7YkdkRjHbyfYiw2h/xcXt3hWh1Q= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=YIj6ATKS; spf=pass (imf11.hostedemail.com: domain of guoren@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=guoren@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1666598586; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=CXws4eLr0gl3odZwqTEuuhZZp1WDhaclsxdDRXlhMQQ=; b=N7Z06IxmoGZhM2V2V6on761jhZwWS8UcrrUgXWpx5cJfIDWDqfsAOrPcttynPbucrnxSsa Cmazr8d0V+S35zuo3rZxINfczXdKF5Jmjs8X7z3YZkVSfbXx3fszdWO1kFry6gEran6S/0 85HtwIILS7bW+G2XIlsTHU+i5BSqbeM= X-Stat-Signature: jma7dpfgzni5sqaaqkdd4iwydcz5qdks X-Rspamd-Queue-Id: 58C6440004 X-Rspam-User: X-Rspamd-Server: rspam03 Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=YIj6ATKS; spf=pass (imf11.hostedemail.com: domain of guoren@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=guoren@kernel.org; dmarc=pass (policy=none) header.from=kernel.org X-HE-Tag: 1666598586-256069 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Oct 24, 2022 at 3:07 PM Muchun Song wrote: > > > > > On Oct 23, 2022, at 21:32, guoren@kernel.org wrote: > > > > From: Guo Ren > > > > 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. Okay. > > > page" [1]. To make it work correct, we also need fixup PG_dcache_clean > > setting for huge page [2]. > > > > [1] https://lore.kernel.org/linux-doc/20210510030027.56044-1-songmuchun= @bytedance.com/ > > [2] https://lore.kernel.org/linux-mm/20220302084624.33340-1-songmuchun@= bytedance.com/ > > > > Signed-off-by: Guo Ren > > Signed-off-by: Guo Ren > > Cc: Muchun Song > > Cc: Huacai Chen > > Cc: Arnd Bergmann > > I=E2=80=99am really glad to see more and more arches for support HVO. > > Acked-by: Muchun Song Thx > > Thanks. > --=20 Best Regards Guo Ren