Received: by 2002:a05:6902:102b:0:0:0:0 with SMTP id x11csp2625601ybt; Tue, 16 Jun 2020 10:38:15 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzcq5NJZ7ornMmkDq2+5IV2+R6VuEEFfy9dF6jVkdPgDhwByybINJ1re657yfFgHZ+15kOf X-Received: by 2002:a17:906:51d1:: with SMTP id v17mr3713154ejk.383.1592329095668; Tue, 16 Jun 2020 10:38:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1592329095; cv=none; d=google.com; s=arc-20160816; b=TPcnjXvUM8V7IPBPYt27jWaljSV3epKZE3JFrC4KLKzgzGbFIGIsfD8++pJOwzLwxt /DtWqLjzZPU91E3oeqgD2qJxb3F1zmD8M4dp+6sbrGhcCz9sSrpCDQl9QFixAypKYCVt 3sAY6y1BnwuEgQV2QaGyBmiHybjooMO5/6y5q1F6eY98S0vcISvpGdue0xlw+IhkXmvU K7R8nCrmecTpKjT0ZjIhXiBsWTeRldL+6f2V+Dak+PuDw3ltQ51BAJx1nktmNyknzkkr diSQp2S0swii9EzXvpuUxAC6Yw5uSRnc9Y+XC1newUgp+iEUpzyNSVWvi3CKdbDC2Koq 1kEw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:dkim-signature:mime-version:references :in-reply-to:message-id:date:subject:cc:to:from; bh=b0XgSPW4uLM1dRrzgrkyFKmnV5pSJjQs4+MeUEM2ySE=; b=v/gAeG2O6jeKlj6ingEfrtAuWlpPO1CMUpSTWmgaKowBn/5kcjd6JU382FKMuY8+V2 DWBTNKzLbG35JdtLSo9vknBaw6c3SsqJGr57uopBW+gfeuOPIukQ4msB3PWspGBkeWOS TZ1oxKTek85RajG/00SBgh+JDAQh2P2ZYREv1/TbQHRWDKmPyg8bOHzsn0fcm8oXUcJQ jXoQC22bmHP7F/ehDjZyudIQ3ciWf6y1Sk+xoHQ1AvzQGQaqq9qun4uPz/qG7MNVge98 45BqO5k/eUmx+PqLle+DXdJ/eTP6Ub3w20IKtzm/ZLRqBYTYBXWY7rP14W5DqdDQRsxk YsUA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@nvidia.com header.s=n1 header.b=iQzJIz1p; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nvidia.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id dt2si15628640ejc.596.2020.06.16.10.37.53; Tue, 16 Jun 2020 10:38:15 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@nvidia.com header.s=n1 header.b=iQzJIz1p; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nvidia.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730565AbgFPRdo (ORCPT + 99 others); Tue, 16 Jun 2020 13:33:44 -0400 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]:10124 "EHLO hqnvemgate24.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729113AbgFPRdn (ORCPT ); Tue, 16 Jun 2020 13:33:43 -0400 Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 16 Jun 2020 10:32:04 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Tue, 16 Jun 2020 10:33:42 -0700 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Tue, 16 Jun 2020 10:33:42 -0700 Received: from [10.2.166.236] (10.124.1.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 16 Jun 2020 17:33:41 +0000 From: Zi Yan To: Yang Shi CC: , , , Subject: Re: [PATCH] mm: thp: remove debug_cow switch Date: Tue, 16 Jun 2020 13:33:38 -0400 X-Mailer: MailMate (1.13.1r5690) Message-ID: <33C9F202-A610-4C9F-87E9-C50DF77C4329@nvidia.com> In-Reply-To: <1592270980-116062-1-git-send-email-yang.shi@linux.alibaba.com> References: <1592270980-116062-1-git-send-email-yang.shi@linux.alibaba.com> MIME-Version: 1.0 X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL101.nvidia.com (172.20.187.10) To HQMAIL107.nvidia.com (172.20.187.13) Content-Type: multipart/signed; boundary="=_MailMate_4F23ADB1-404C-40E3-99A6-9E39630448E4_="; micalg=pgp-sha512; protocol="application/pgp-signature" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1592328724; bh=b0XgSPW4uLM1dRrzgrkyFKmnV5pSJjQs4+MeUEM2ySE=; h=X-PGP-Universal:From:To:CC:Subject:Date:X-Mailer:Message-ID: In-Reply-To:References:MIME-Version:X-Originating-IP: X-ClientProxiedBy:Content-Type; b=iQzJIz1pDDQX0QpaS+ueJXvwseZo92er7YsIOpxB6+7xXowFxDeIANjiOt4Iueuob BL9q7TLyVq66UY0q/FbzhFeKaeA9AJuqHOekt2z/sOR388t6b95i0sv6+GBYJKTT0b D/wGfXXxb9jESI3ukvGh3gRQ0hrmTU/6VPs3eCtZjAP24vD1xy/yBYCES5j0ZW4+IW Xgk/USsV5H4ePyq6xYTRFDGbeWePLTKu064QZ6GXbHx6j3sQllC265RZ1pItcOewZ+ y1hNBAa56f01cO1Yp2dADWNQMFIv/Op9lVErzLqGIZHxdFqVYtaAbml12Lu6U7KYTu HaFt+Ud3WL2/g== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=_MailMate_4F23ADB1-404C-40E3-99A6-9E39630448E4_= Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On 15 Jun 2020, at 21:29, Yang Shi wrote: > Since commit 3917c80280c93a7123f1a3a6dcdb10a3ea19737d ("thp: change CoW= > semantics for anon-THP"), the CoW page fault of THP has been rewritten,= > debug_cow is not used anymore. So, just remove it. > > Cc: Kirill A. Shutemov > Signed-off-by: Yang Shi > --- Makes sense to me. Reviewed-by: Zi Yan =E2=80=94 Best Regards, Yan Zi --=_MailMate_4F23ADB1-404C-40E3-99A6-9E39630448E4_= Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQJDBAEBCgAtFiEEh7yFAW3gwjwQ4C9anbJR82th+ooFAl7pAnIPHHppeUBudmlk aWEuY29tAAoJEJ2yUfNrYfqKuTsQAKbBpdVpN6PpJrFS7avuVDzH6zcuyz/P2xwV 2w9J2/5MyDJmmObha2qUux2cXAZXWln/v52BsXJYGO2EGV8aeYAj1Py4OxNp2eZ6 GtKVvq1H0HpQogebLB4WLRx+U2QMJNU70wxPNdrCb0yYUmODs4yQR8k9zj0S26uB UIOkb3sW8W725cXjuJ482tVlxyLD+FnE3FWNs2RGRMgOaqv18aQT8x+FsuCpZnRr QvIKKBU92j5H7/Q9cLhzNzY1hiG69HfuFzEoSZbXw5Jc2Y4/isU1yQXJIHgbQ8Om A/lSqPpfaoGdO3MY/6AKSUqvKsVE87Nwbl5SsG3nN7BxHHTJQO4orLptw+pSo9SK 9B1QYJOWgkAXml7RA/bABvwdr4abjQJ5ImAfh4tulIKJlCL92Efd8LdYtvegnG5s Gs8Twck/JMvzAoP1f2sWYy8jcGJhUKLCzu8VAIUn9gXKm/eAEUUZ+6ue6D9qnWdE SRR8TtM1Eo8lFL1lPTrUYyHVMP5p5N4iX63SpFVJRB30eBbKPujGwWfU6+MdB4pV 6ou9G3FJfBnwUND9J/W/pk7WudW2nV9iIWhFjfTKJz4xbR/xbyCWvEWu13c6VHkA WEe3aklnxZPoumt1WyMXe+9UBZoYgUziwXcKx8UqiIZwQlpLTDa3BYpUnlXzl5Xi u1b1MXbY =NxHz -----END PGP SIGNATURE----- --=_MailMate_4F23ADB1-404C-40E3-99A6-9E39630448E4_=--