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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no 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 9086FC282DD for ; Tue, 7 Jan 2020 21:37:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 53E0020692 for ; Tue, 7 Jan 2020 21:37:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="C4tmwpKD"; dkim=pass (1024-bit key) header.d=fb.onmicrosoft.com header.i=@fb.onmicrosoft.com header.b="SH2oS7zs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727298AbgAGVhw (ORCPT ); Tue, 7 Jan 2020 16:37:52 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:30400 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726210AbgAGVhv (ORCPT ); Tue, 7 Jan 2020 16:37:51 -0500 Received: from pps.filterd (m0109333.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 007LVlgE007977; Tue, 7 Jan 2020 13:37:33 -0800 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=jQxkt42IonmUQ+qhV/N0TGFOFwgzNZ1+EiGp8OMAl8c=; b=C4tmwpKDPL+s5SpWIA/mCoiCg2ySyKGzB6cyqhkt891E7G5SAGJ/MweU2EVJPsn20PHg aDpfuZWSd3ggt/cyraKFU3CSxpSHEf/LQDpVjWhYZmmpFsBdz4taR7l5LfbKes3M5lJ4 sOToJb+lqns36OHjpOAZkz+wDgCrtkD9hUo= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 2xbb4vp1pn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Tue, 07 Jan 2020 13:37:33 -0800 Received: from NAM11-CO1-obe.outbound.protection.outlook.com (100.104.98.9) by o365-in.thefacebook.com (100.104.94.229) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Tue, 7 Jan 2020 13:37:32 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=mprKdnI6sct9b4/mUwzJ1PzgG23OHnfeEA1O9VmFgyEPPF/DDB96OY4IblxnCbNsz+7HWOgm1LXUECeaLok+NEU0SePAj6AZOJ5Pqd1hsP3SW3/7Rk4HRLskxsKiN2aaWaBKQRtkBkt6J19G5NhkQ1my/5dZGp0Cawi/aXdVlAgvfUc3tlKiy4jK/gz9XgMD6QzKDVccviHH+/pxJncy73nEMSgwFUHhRAhV+jp+ypfGeMOGSPkRrPMRXS8qYrDoLJDDvI3aIs8KkTCeYh4PusKrL/a/LQFdJr9cyXQMCadl9hT4qPr9gTpkK6ONkV1sqgLvj4ZdxYp1AjgCoZOlxg== 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=jQxkt42IonmUQ+qhV/N0TGFOFwgzNZ1+EiGp8OMAl8c=; b=hVJWGRXq5bmp/kESeJthePNBJ/F+LgWZm8zXYQqYg2IxhQskUly7XrEXRT1WhHpCrklj88fa+VJ54aak6VKCN8tb1dIJa0uYZM/KOfegmJvSLchgX6ONsvxhJ7N9YcfRFf0RO6DmM1XpuNvwcDX7yaeLVn2tC3Jhy6SDf5seV/DtdAmC2PM17rdVLHHj+8588sZstCwkrowvbpb7veoA2l5S69ETVhiXxE2XTpKesh6Gs6qoqy8b2MFgHEuxy801XafjXpuPvRom+OzFC/8QbEU31N0eOjyrL07yV0C6X6cTcQnqMSFlHVmrTXYpchdZhKDul4wt9Ub/FxGb119kcg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=fb.com; dmarc=pass action=none header.from=fb.com; dkim=pass header.d=fb.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.onmicrosoft.com; s=selector2-fb-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=jQxkt42IonmUQ+qhV/N0TGFOFwgzNZ1+EiGp8OMAl8c=; b=SH2oS7zsi+7N9NmtYaAF3bC939AxpNpUq16wTrPXp+4Ycj2jZTCj/5ybeW9KweunITZrVMf+TvN3upnWIVX0Dgx2NJbo0oiewEVUPsJpF4RS3GBR8CKaTvWPrDqBwHDVMWtSILum/E4JCr7WOik7yalBF9BuMsfcKPmQupfHI+I= Received: from SN6PR15MB2446.namprd15.prod.outlook.com (52.135.64.153) by SN6PR15MB2317.namprd15.prod.outlook.com (52.135.67.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2602.11; Tue, 7 Jan 2020 21:37:26 +0000 Received: from SN6PR15MB2446.namprd15.prod.outlook.com ([fe80::615e:4236:ddfa:3d10]) by SN6PR15MB2446.namprd15.prod.outlook.com ([fe80::615e:4236:ddfa:3d10%6]) with mapi id 15.20.2602.016; Tue, 7 Jan 2020 21:37:26 +0000 Received: from [172.30.77.45] (2620:10d:c091:480::3e5) by BL0PR02CA0113.namprd02.prod.outlook.com (2603:10b6:208:35::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2623.8 via Frontend Transport; Tue, 7 Jan 2020 21:37:24 +0000 From: Chris Mason To: Dave Chinner CC: Amir Goldstein , Hugh Dickins , Chris Down , Linux MM , "Andrew Morton" , Al Viro , Matthew Wilcox , Jeff Layton , Johannes Weiner , Tejun Heo , linux-fsdevel , linux-kernel , Kernel Team Subject: Re: [PATCH v5 2/2] tmpfs: Support 64-bit inums per-sb Thread-Topic: [PATCH v5 2/2] tmpfs: Support 64-bit inums per-sb Thread-Index: AQHVw8CGl/KetGOh6EKI9KXS1swjsKfeVkeAgAABsoCAAAZuAIAAaK2AgAAcgoCAABq1AIAAtxOAgAAIagA= Date: Tue, 7 Jan 2020 21:37:25 +0000 Message-ID: <4E9DF932-C46C-4331-B88D-6928D63B8267@fb.com> References: <20200107001039.GM23195@dread.disaster.area> <20200107001643.GA485121@chrisdown.name> <20200107003944.GN23195@dread.disaster.area> <20200107210715.GQ23195@dread.disaster.area> In-Reply-To: <20200107210715.GQ23195@dread.disaster.area> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: MailMate (1.13.1r5671) x-clientproxiedby: BL0PR02CA0113.namprd02.prod.outlook.com (2603:10b6:208:35::18) To SN6PR15MB2446.namprd15.prod.outlook.com (2603:10b6:805:22::25) x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [2620:10d:c091:480::3e5] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: d8deedea-350a-474e-0774-08d793b9c9ad x-ms-traffictypediagnostic: SN6PR15MB2317: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:7691; x-forefront-prvs: 027578BB13 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(376002)(136003)(366004)(39860400002)(346002)(396003)(189003)(199004)(71200400001)(86362001)(53546011)(5660300002)(81156014)(81166006)(52116002)(8936002)(16526019)(8676002)(7416002)(316002)(186003)(478600001)(54906003)(4744005)(6916009)(66446008)(66946007)(66556008)(36756003)(2616005)(33656002)(2906002)(4326008)(6486002)(64756008)(66476007);DIR:OUT;SFP:1102;SCL:1;SRVR:SN6PR15MB2317;H:SN6PR15MB2446.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: BCL:0; x-microsoft-antispam-message-info: UzCGLo/0+m57MxDTLdfi1A50qS77hbjezJ6371Ew2Mq4RIXa07ERIJKrx5HqO2xpSYpiegkOfW2LtSijscrCO1utJa3GpAu2di6E5IFfXjskW95or4cIkNkzsbirXO0cf8nByufP0hJcnyk3MknApv/qP17wTNNy5nlcGFQ+BXtGYBUC6oAnaoUxMXj//6MYsYOh1igJtTzSrTwWViDYVy9lZ4z+t7wA6U1gUs20ouxeah3TD/95Wnig64hlpK477OyaC6MZWSukDT9WJ/0fqmhBu8GqW5vu25Th3KaLgxrMg22SkIyL7WQepLPKUP6XaILtgBNSlUhUFzQfxACAByabN0HgyQIxB/AlJSMJ50FpsHfcb04XKtzeY0vLSdWq1tqJpeqVnWfkQZsj6gTW6aS9AUuln4PEOE1LyF38MBjLi1YhWvP9M/JFyCeJcbv3 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: d8deedea-350a-474e-0774-08d793b9c9ad X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Jan 2020 21:37:26.0595 (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-CrossTenant-userprincipalname: rHBznA/YQuVQ246JU48SFdB15pKo5FnF2ibJTHloZRXTDGgnE9d7Dvng07BMlAou X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR15MB2317 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-01-07_07:2020-01-07,2020-01-07 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 phishscore=0 spamscore=0 priorityscore=1501 malwarescore=0 bulkscore=0 suspectscore=0 clxscore=1011 impostorscore=0 mlxlogscore=917 mlxscore=0 adultscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-2001070171 X-FB-Internal: deliver Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7 Jan 2020, at 16:07, Dave Chinner wrote: > IOWs, there are *lots* of 64bit inode numbers out there on XFS > filesystems.... It's less likely in btrfs but +1 to all of Dave's comments. I'm happy=20 to run a scan on machines in the fleet and see how many have 64 bit=20 inodes (either buttery or x-y), but it's going to be a lot. -chris