Received: by 2002:a25:c593:0:0:0:0:0 with SMTP id v141csp1035301ybe; Thu, 5 Sep 2019 09:20:32 -0700 (PDT) X-Google-Smtp-Source: APXvYqzniCbuoPNXUGqlrpTkOvHDitlysfP+4Fgudf1Qn67YzL5ULio26bQaC9uvhU646F4teR4/ X-Received: by 2002:a17:902:4401:: with SMTP id k1mr4375987pld.193.1567700432146; Thu, 05 Sep 2019 09:20:32 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1567700432; cv=pass; d=google.com; s=arc-20160816; b=JVMCMngtU1s6yqWqzA2bD0LoMz3FJuOIjC2g++B3Th/2NtFZFNZwioSWcMZv0CavJ3 NpKzt6c8Tg6Cg56umg201ZeYViI5XD/jDg04HI0CP4IBsmyWq0JD0nWnO5nq8Svw5IEj jp7xWkjky0XDyX1ysS0i0GNayLDkz8YkU1UOQHaCp0qGSy8eQ12iBPFmRCvq9WdsNPX8 Kfbh5yTo8ZlSCdHhea/H/3Y+N4/IoB/9kbFKBB0sg57OTpEfi0+OucbplQ/kGEsGBBrP xHsZnG/xOhOy4e+/+DaMK4k6vYnKUdPQBqnNGyOhipS/zQvekCa6DwfSqsDvVg2ClbkH GD2A== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:references :message-id:date:thread-index:thread-topic:subject:cc:to:from :dkim-signature; bh=MMizm16Z+F9Mrxrg67ccIMS7U02Y9WbnS9tOyZE5WOk=; b=nLwp/OvA2sdnCqFNaL1fr8qenvKknc+ktDcZFk5xX90l7ncDtQKjG7+tlern7eMNa7 c2ZKoeLRe4w93zmOY7pc69VwPAKCQO0Ijnjm4Piw091lSVIrHeWNWk6hvYC8xixn7PjP KIuSWr5dRQLNpXpEwlEL57Fj4KQeUp7L48gPIvnI8areyb6RNmhZipQCJ7PC8HqgJzdg l/rG6BJZvK1Wfb2u2sFsSEW/EzNymyLe/JoSf89lG0csB+3FXOhRQeAkGJeyt0EPPr+Q U/AFRs0w2PRIRDT2w17ayjShOOP49V2R4Ner/yB/vIWn2y9aIiejFWBo8dTvtZbRRtVa Qh9Q== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@Mellanox.com header.s=selector2 header.b=WKMK7AE4; arc=pass (i=1 spf=pass spfdomain=mellanox.com dkim=pass dkdomain=mellanox.com dmarc=pass fromdomain=mellanox.com); spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mellanox.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id q91si2580431pja.64.2019.09.05.09.20.15; Thu, 05 Sep 2019 09:20:32 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@Mellanox.com header.s=selector2 header.b=WKMK7AE4; arc=pass (i=1 spf=pass spfdomain=mellanox.com dkim=pass dkdomain=mellanox.com dmarc=pass fromdomain=mellanox.com); spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mellanox.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733113AbfIEN7Q (ORCPT + 99 others); Thu, 5 Sep 2019 09:59:16 -0400 Received: from mail-eopbgr30058.outbound.protection.outlook.com ([40.107.3.58]:3286 "EHLO EUR03-AM5-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730739AbfIEN7P (ORCPT ); Thu, 5 Sep 2019 09:59:15 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=df63PsAn6WpgD0PLXPWb6ovX2vA30xB0dGq0Z2ifIsqAzxyA7vBH9/Y1G9RZfHGa6FZzSyXK8gtJhOgfpC1eDFktNw8TVjlO0KrQ2GiRMMEoYXuib6IYgTOdfwOhQPwPSv2cnj94LU7lTRXCkTI6ZNtrfFACYLJCdTN83aXo2WHRUlzMDMWCL+Ph5imDCqXNSxc8cQMfFBiE4eApE0u7lSwc2LdFh97MzwgNMJW+r1x5HB3O57cbO6TeRJ//V8HxbstM+JyWU3OKg9RqJUtPnH1AQhUS1y8dZwrHNurmMpFx35PseiSfB6cBqQQqH9hU2Uf3ia9p+jilq5YJD3NDdg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=MMizm16Z+F9Mrxrg67ccIMS7U02Y9WbnS9tOyZE5WOk=; b=c1d+WInCV2GujWUAdm27kixitBef6NOEwCBspLl05rn1HUGfgofZnF4YTO4wH+kAhg6lxbYRHbIo/WdG/cBSqe0B6H1h0Qjc7XCuQOBGQdgXUflgxzEMkiMCP7zt61FeKcDqc+Zzxsq4eefYSn06FSr+OYSH6lUxuCO0QOuJg4iSwmHhzGbt3lKiCPVz8bRjOFRn7CIM+k/85LVAKtG2o8uplFafFRBr9PkYlF22Mq39n0iM7bnLH0yG5ieZfA0fBPG/bgXWi2MM2FQSxjAgeFYU+asBdPUMOudE9EzmTWBUyb4YQrkc0a9hu1RLjedr3Az0yvt4muJpD4kwxrJncg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=mellanox.com; dmarc=pass action=none header.from=mellanox.com; dkim=pass header.d=mellanox.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Mellanox.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=MMizm16Z+F9Mrxrg67ccIMS7U02Y9WbnS9tOyZE5WOk=; b=WKMK7AE4+8mhynCpJh55lDsrjJi2cL46C8GpbsGOwC1fdMci3K7PwI2dLI8D3Mr5gWNzjnsXdDewkOYORcYERQDAai06J2R4Ax95co2uLkGxzChEi1YsYfAHgtlI1Tqhr5Vy/NCp4wHlMW2nsKZCYA4U+OpktgbzioDL65iM+Y4= Received: from VI1PR05MB4141.eurprd05.prod.outlook.com (10.171.182.144) by VI1PR05MB5183.eurprd05.prod.outlook.com (20.178.11.87) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2241.15; Thu, 5 Sep 2019 13:59:11 +0000 Received: from VI1PR05MB4141.eurprd05.prod.outlook.com ([fe80::79a3:d971:d1f3:ab6f]) by VI1PR05MB4141.eurprd05.prod.outlook.com ([fe80::79a3:d971:d1f3:ab6f%7]) with mapi id 15.20.2220.022; Thu, 5 Sep 2019 13:59:11 +0000 From: Jason Gunthorpe To: Jason Wang CC: "mst@redhat.com" , "kvm@vger.kernel.org" , "virtualization@lists.linux-foundation.org" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "aarcange@redhat.com" , "jglisse@redhat.com" , "linux-mm@kvack.org" Subject: Re: [PATCH 0/2] Revert and rework on the metadata accelreation Thread-Topic: [PATCH 0/2] Revert and rework on the metadata accelreation Thread-Index: AQHVY+VUnpT/Tzy9vUuDxdg4xWUdk6cdHGCA Date: Thu, 5 Sep 2019 13:59:10 +0000 Message-ID: <20190905135907.GB6011@mellanox.com> References: <20190905122736.19768-1-jasowang@redhat.com> In-Reply-To: <20190905122736.19768-1-jasowang@redhat.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: LNXP265CA0085.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:76::25) To VI1PR05MB4141.eurprd05.prod.outlook.com (2603:10a6:803:4d::16) authentication-results: spf=none (sender IP is ) smtp.mailfrom=jgg@mellanox.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [193.47.165.251] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 171bda58-a846-45b7-175f-08d732093a20 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600166)(711020)(4605104)(1401327)(4618075)(2017052603328)(7193020);SRVR:VI1PR05MB5183; x-ms-traffictypediagnostic: VI1PR05MB5183: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:4502; x-forefront-prvs: 015114592F x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(4636009)(396003)(136003)(39860400002)(376002)(346002)(366004)(199004)(189003)(3846002)(6116002)(76176011)(5660300002)(102836004)(186003)(66556008)(26005)(71200400001)(71190400001)(66476007)(14444005)(4744005)(6512007)(8676002)(478600001)(66446008)(386003)(6506007)(66946007)(64756008)(2616005)(476003)(1076003)(486006)(86362001)(446003)(11346002)(256004)(66066001)(2906002)(6916009)(7736002)(6246003)(33656002)(8936002)(25786009)(4326008)(36756003)(305945005)(14454004)(53936002)(6436002)(52116002)(54906003)(81166006)(81156014)(316002)(229853002)(6486002)(99286004);DIR:OUT;SFP:1101;SCL:1;SRVR:VI1PR05MB5183;H:VI1PR05MB4141.eurprd05.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: mellanox.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: adzM/hgIStuBPGyRMZbeZW3tI3aZg98pbWLvSgnzBMCvrrhjVxWQtFGqc1a/yi6I6imIOUt74wAxhCmO/Tz/tiDaA2ySB8idd5hZiZ1tSTteAKPcB8NVpLLOo1TOLpASe0tgRIauZAzZwRPIQmoU961/5qzmDNwEGFYCJj8QlcCoFZvCMnRTa50qh3vkbF2Vad5WOnyfkcTdcs6AMrcr5fh7e8+If6kUAK9OqwasHoVfR4c+IK+3QXCevNMykWAN+j/tYVSi68UHsPaa7tYxqZ3rfS8hY+FSPC3VxIGSaAJDHHoUhCcJdmlI93C4NKQTCRzfGxSXSun99PVWim/Q02+0wraqZqgrgY1gbF5+PBQycQCv/ZA2sGOFxH3q5dOSvRcsvnkXfKz4XzMwPBAuShLEIHOhNhPGzIkAHAXUOZ8= x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: 171bda58-a846-45b7-175f-08d732093a20 X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Sep 2019 13:59:10.9169 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: cJHkiKeD5jjSxVxs3lfvbMZrXhjFojVGmf1BmFlK7WeSM62dGGLgx3Aw5ApkrsgJx+luBZMkx8jDfllTC7/ETg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR05MB5183 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 05, 2019 at 08:27:34PM +0800, Jason Wang wrote: > Hi: >=20 > Per request from Michael and Jason, the metadata accelreation is > reverted in this version and rework in next version. >=20 > Please review. >=20 > Thanks >=20 > Jason Wang (2): > Revert "vhost: access vq metadata through kernel virtual address" > vhost: re-introducing metadata acceleration through kernel virtual > address There are a bunch of patches in the queue already that will help vhost, and I a working on one for next cycle that will help alot more too. I think you should apply the revert this cycle and rebase the other patch for next.. Jason