From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4955C10F0E for ; Tue, 9 Apr 2019 18:57:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 71C402133D for ; Tue, 9 Apr 2019 18:57:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="E3TvCbzC"; dkim=pass (1024-bit key) header.d=fb.onmicrosoft.com header.i=@fb.onmicrosoft.com header.b="I1oqDOEx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726556AbfDIS5H (ORCPT ); Tue, 9 Apr 2019 14:57:07 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:47910 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726529AbfDIS5H (ORCPT ); Tue, 9 Apr 2019 14:57:07 -0400 Received: from pps.filterd (m0001255.ppops.net [127.0.0.1]) by mx0b-00082601.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x39Ikmsv025732; Tue, 9 Apr 2019 11:56:59 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-transfer-encoding : mime-version; s=facebook; bh=Z9vFFyn/yZ2e15vn0E1YnuvsKhzJFakjY+2fDJzxYus=; b=E3TvCbzC3TNy+YqKxWKCutWrEPAY2uBbBLPwkSUnCQsWRkKCbaZgMAnGsfkzRxFtQ79H LOCjVBxpC3K+I8U+aAvcyeTC5INe/hHcW+4kOUx/LT//w/3X8gUBQ6tH14HGdJ581eza su3+oHIQvBtvgkvmlZ4mzhyUDsmX/MIpahE= Received: from mail.thefacebook.com ([199.201.64.23]) by mx0b-00082601.pphosted.com with ESMTP id 2rryj6rfvn-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 09 Apr 2019 11:56:59 -0700 Received: from prn-mbx06.TheFacebook.com (2620:10d:c081:6::20) by prn-hub01.TheFacebook.com (2620:10d:c081:35::125) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.1.1713.5; Tue, 9 Apr 2019 11:56:58 -0700 Received: from prn-hub03.TheFacebook.com (2620:10d:c081:35::127) by prn-mbx06.TheFacebook.com (2620:10d:c081:6::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.1.1713.5; Tue, 9 Apr 2019 11:56:58 -0700 Received: from NAM01-BY2-obe.outbound.protection.outlook.com (192.168.54.28) by o365-in.thefacebook.com (192.168.16.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.1.1713.5 via Frontend Transport; Tue, 9 Apr 2019 11:56:58 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.onmicrosoft.com; s=selector1-fb-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Z9vFFyn/yZ2e15vn0E1YnuvsKhzJFakjY+2fDJzxYus=; b=I1oqDOExxIlYNmAdvPXxEia+CSQxOU3oMr3mHGNvoHvi9prztmPTroczIonM3kuTdWlNdaGe7Nhn6Uyk9zkS6uppI/4qXUIi3J5rtTog16wP04NDN1YNcMuNIfGT0+uaCb/QcS6SlO3uO1usFv4mQPJs7Du7UulkN49fYaLcMEE= Received: from DM5PR15MB1290.namprd15.prod.outlook.com (10.173.209.148) by DM5PR15MB1356.namprd15.prod.outlook.com (10.173.224.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1792.15; Tue, 9 Apr 2019 18:56:56 +0000 Received: from DM5PR15MB1290.namprd15.prod.outlook.com ([fe80::e828:23d4:87c9:b7f7]) by DM5PR15MB1290.namprd15.prod.outlook.com ([fe80::e828:23d4:87c9:b7f7%5]) with mapi id 15.20.1792.009; Tue, 9 Apr 2019 18:56:56 +0000 From: Chris Mason To: Jens Axboe CC: Christoph Hellwig , linux-fsdevel , "linux-block@vger.kernel.org" , "linux-api@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] io_uring: add support for barrier fsync Thread-Topic: [PATCH] io_uring: add support for barrier fsync Thread-Index: AQHU7vEvvXtetWT7+EuXEpZlgauUcqY0IygAgAABpACAAAVjgIAAAPOAgAAC+YA= Date: Tue, 9 Apr 2019 18:56:56 +0000 Message-ID: References: <7c7276e4-8ffa-495a-6abf-926a58ee899e@kernel.dk> <20190409181742.GA24925@infradead.org> <5f8d9644-9e8f-c9d2-611e-4b144c62539c@kernel.dk> <5BF7FDDE-212E-4F9A-9B50-26BDA99E952A@fb.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: MailMate (1.12.4r5594) x-clientproxiedby: BN4PR10CA0001.namprd10.prod.outlook.com (2603:10b6:403::11) To DM5PR15MB1290.namprd15.prod.outlook.com (2603:10b6:3:b3::20) x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [2620:10d:c091:180::2ad7] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 805657c3-46f9-40c9-fce2-08d6bd1d236c x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600139)(711020)(4605104)(2017052603328)(7193020);SRVR:DM5PR15MB1356; x-ms-traffictypediagnostic: DM5PR15MB1356: x-microsoft-antispam-prvs: x-forefront-prvs: 000227DA0C x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(346002)(376002)(39860400002)(396003)(366004)(136003)(189003)(199004)(8936002)(6512007)(83716004)(305945005)(71200400001)(71190400001)(76176011)(68736007)(2616005)(7736002)(6246003)(4326008)(446003)(11346002)(486006)(476003)(53936002)(14454004)(52116002)(25786009)(478600001)(6116002)(14444005)(186003)(256004)(6506007)(386003)(53546011)(102836004)(46003)(316002)(99286004)(54906003)(2906002)(50226002)(93886005)(82746002)(86362001)(106356001)(105586002)(6436002)(6486002)(33656002)(5660300002)(81156014)(8676002)(81166006)(229853002)(97736004)(6916009)(36756003);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR15MB1356;H:DM5PR15MB1290.namprd15.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; received-spf: None (protection.outlook.com: fb.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: 5NYxtHbJAvovG5DALy1pSkek1CqS33ASnGTkzQj690Kp1SyAzzbcbGDJEr9za2yWHs04kZicnKcaLcniSe6Ied6XUKt17GBnNyl2145EIIeP8r1f0w1QIwArTTa2S3lqTc3mQBc39aIXAvspVXohrBSvE5DlozpNDaH8rLGhvYiPKjsh27sONb9LlZyWoKQNtoJX6g4tpJzUBc/C1cNHR0ma0bJp/F4QmzDKHkM+6t7GIP5WRbotwRASf/VlB1MKWSq9VK9U1t41hDyzZXiDhfmlPCkxyALkQUIO33WbIGJsqYJ8Vh8wqpQmEmydwqMh1LaCBc4Zgd8CcK8zPTGBoeLkU4eRORKQZj8ThHExeVZrSu12fm9SVXXkUmm8ZUZcFwU7JhUnKNFvqBd7Gg8uQ+Y6V8FI8kMfo1+Ci1GToDo= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 805657c3-46f9-40c9-fce2-08d6bd1d236c X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2019 18:56:56.8122 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR15MB1356 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-04-09_09:,, signatures=0 X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org T24gOSBBcHIgMjAxOSwgYXQgMTQ6NDYsIEplbnMgQXhib2Ugd3JvdGU6DQoNCj4gT24gNC85LzE5 IDEyOjQyIFBNLCBDaHJpcyBNYXNvbiB3cm90ZToNCg0KPj4gTG9va2luZyBhdCB0aGUgcGF0Y2gs IHdoeSBpcyBmc3luYyBzcGVjaWFsPyAgU2VlbXMgbGlrZSB5b3UgY291bGQgYWRkDQo+PiB0aGlz IG9yZGVyaW5nIGJpdCB0byBhbnkgd3JpdGU/DQo+DQo+IEl0J3MgcmVhbGx5IG5vdCwgdGhlIGV4 YWN0IHNhbWUgdGVjaG5pcXVlIGNvdWxkIGJlIHVzZWQgb24gYW55IHR5cGUgb2YNCj4gY29tbWFu ZCB0byBpbXBseSBvcmRlcmluZy4gTXkgaW5pdGlhbCBpZGVhIHdhcyB0byBoYXZlIGFuIGV4cGxp Y2l0DQo+IGJhcnJpZXIvb3JkZXJpbmcgY29tbWFuZCwgYnV0IEkgZGlkbid0IHRoaW5rIHRoYXQg c2VwYXJhdGluZyBpdCBmcm9tIA0KPiBhbg0KPiBhY3R1YWwgY29tbWFuZCB3b3VsZCBiZSBuZWVk ZWQvdXNlZnVsLg0KDQpNaWdodCB3YW50IHRvIG9yZGVyIGRpc2NhcmRzPyAgQ29tbWl0IGEgdHJh bnNhY3Rpb24gdG8gZnJlZSBzb21lIGJsb2NrcywgDQpkaXNjYXJkIHRob3NlIGJsb2Nrcz8NCg0K Pg0KPj4gV2hpbGUgeW91J3JlIGhlcmUsIGRvIHlvdSB3YW50IHRvIGFkZCBhIHdheSB0byBGVUEv Y2FjaGUgZmx1c2g/DQo+PiBCYXNpY2FsbHkgdGhlIHJlc3Qgb2Ygd2hhdCB1c2VyIGxhbmQgd291 bGQgbmVlZCB0byBtYWtlIHRoZWlyIG93bg0KPj4gd3JpdGUtYmFjay1jYWNoZS1zYWZlIGltcGxl bWVudGF0aW9uLg0KPg0KPiBGVUEgd291bGQgYmUgYSBXUklURVYvV1JJVEVfRklYRUQgZmxhZywg dGhhdCBzaG91bGQgYmUgdHJpdmlhbGx5IA0KPiBkb2FibGUuDQo+DQo+IEluIHRlcm1zIG9mIGNh Y2hlIGZsdXNoLCB0aGF0J3MgdmVyeSBoZWF2eSBoYW5kZWQgKGFuZCBzdG9yYWdlDQo+IG9yaWVu dGVkKS4gIFdoYXQgYXBwbGljYXRpb25zIHdvdWxkIHdhbnQvbmVlZCB0byBkbyBhbiBleHBsaWNp dCB3aG9sZQ0KPiBkZXZpY2UgZmx1c2g/DQoNCkJhc2ljYWxseSBpZiBzb21lb25lIGlzIHdyaXRp bmcgYSB1c2VybGFuZCBmaWxlc3lzdGVtIHRoZXknZCB3YW50IHRvIA0KY2FjaGUgZmx1c2ggZm9y IHRoZSBzYW1lIHJlYXNvbnMgdGhlIGtlcm5lbCBmaWxlc3lzdGVtcyBkby4NCg0KDQotY2hyaXMN Cg==