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=-8.2 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=unavailable 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 1DC2EC433DF for ; Tue, 18 Aug 2020 15:02:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E13D5206B5 for ; Tue, 18 Aug 2020 15:02:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=auristor.com header.i=jaltman@auristor.com header.b="qodT9E7O" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727969AbgHRPCC (ORCPT ); Tue, 18 Aug 2020 11:02:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57190 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727791AbgHRPB2 (ORCPT ); Tue, 18 Aug 2020 11:01:28 -0400 Received: from sequoia-grove.ad.secure-endpoints.com (sequoia-grove.secure-endpoints.com [IPv6:2001:470:1f07:f77:70f5:c082:a96a:5685]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F30CCC061342 for ; Tue, 18 Aug 2020 08:01:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/relaxed; d=auristor.com; s=MDaemon; r=y; t=1597762881; x=1598367681; i=jaltman@auristor.com; q=dns/txt; h=Subject:To:Cc:References: From:Organization:Message-ID:Date:User-Agent:MIME-Version: In-Reply-To:Content-Type; bh=Tcrx0CBuzXKry9+g+roR0MsjkXc6IXhaTNW VyukqMro=; b=qodT9E7OE+FneZ3X9IuxqOAwJPIg8Hau0zhvom5bw6obTBB8Cu1 1OS6KvbuMWk9TLaniQu68d9UEFu5vonrQnArVKaSyNIxEpZekwUvklPFVKf3SVdL 2s1HnBoA/laPTPF4yqs2b2nfLudaV/Uznd8h7YrydIQxEMTdfwUG8f1k= X-MDAV-Result: clean X-MDAV-Processed: sequoia-grove.ad.secure-endpoints.com, Tue, 18 Aug 2020 11:01:21 -0400 Received: from [IPv6:2604:2000:1741:8407:31b2:27ea:a55f:abe6] by auristor.com (IPv6:2001:470:1f07:f77:28d9:68fb:855d:c2a5) (MDaemon PRO v20.0.1) with ESMTPSA id md5001002630221.msg; Tue, 18 Aug 2020 11:01:19 -0400 X-MDRemoteIP: 2604:2000:1741:8407:31b2:27ea:a55f:abe6 X-MDHelo: [IPv6:2604:2000:1741:8407:31b2:27ea:a55f:abe6] X-MDArrival-Date: Tue, 18 Aug 2020 11:01:19 -0400 X-MDOrigin-Country: United States, North America X-Authenticated-Sender: jaltman@auristor.com X-Return-Path: prvs=1499b3761b=jaltman@auristor.com X-Envelope-From: jaltman@auristor.com X-MDaemon-Deliver-To: linux-kernel@vger.kernel.org Subject: Re: file metadata via fs API (was: [GIT PULL] Filesystem Information) To: "Linus Torvalds (torvalds@linux-foundation.org)" Cc: David Howells , Miklos Szeredi , linux-fsdevel , Al Viro , Karel Zak , Jeff Layton , Miklos Szeredi , Nicolas Dichtel , Christian Brauner , Lennart Poettering , Linux API , Ian Kent , LSM , Linux Kernel Mailing List References: <1842689.1596468469@warthog.procyon.org.uk> <1845353.1596469795@warthog.procyon.org.uk> <20200811135419.GA1263716@miu.piliscsaba.redhat.com> <52483.1597190733@warthog.procyon.org.uk> <679456f1-5867-4017-b1d6-95197d2fa81b@auristor.com> From: Jeffrey E Altman Organization: AuriStor, Inc. Message-ID: Date: Tue, 18 Aug 2020 11:01:10 -0400 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="------------ms070203090704080909030005" X-MDCFSigsAdded: auristor.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a cryptographically signed message in MIME format. --------------ms070203090704080909030005 Content-Type: multipart/mixed; boundary="------------15A85830EC70DC04AB47698C" Content-Language: en-US This is a multi-part message in MIME format. --------------15A85830EC70DC04AB47698C Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 8/14/2020 1:05 PM, Linus Torvalds (torvalds@linux-foundation.org) wrot= e: > Honestly, I really think you may want an extended [f]statfs(), not > some mount tracking. >=20 > Linus Linus, Thank you for the reply. Perhaps some of the communication disconnect is due to which thread this discussion is taking place on. My understanding is that there were two separate pull requests. One for mount notifications and the other for filesystem information. This thread is derived from the pull request entitled "Filesystem Information" and my response was a request for use cases. The assumption being that the request was related to the subject. I apologize for creating unnecessary noise due to my misinterpretation of your intended question. The use cases I described and the types of filesystem information required to satisfy them do not require mount tracking. Jeffrey Altman --------------15A85830EC70DC04AB47698C Content-Type: text/x-vcard; charset=utf-8; name="jaltman.vcf" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="jaltman.vcf" begin:vcard fn:Jeffrey Altman n:Altman;Jeffrey org:AuriStor, Inc. adr:;;255 W 94TH ST STE 6B;New York;NY;10025-6985;United States email;internet:jaltman@auristor.com title:CEO tel;work:+1-212-769-9018 url:https://www.linkedin.com/in/jeffreyaltman/ version:2.1 end:vcard --------------15A85830EC70DC04AB47698C-- --------------ms070203090704080909030005 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC DGswggXSMIIEuqADAgECAhBAAW0B1qVVQ32wvx2EXYU6MA0GCSqGSIb3DQEBCwUAMDoxCzAJ BgNVBAYTAlVTMRIwEAYDVQQKEwlJZGVuVHJ1c3QxFzAVBgNVBAMTDlRydXN0SUQgQ0EgQTEy MB4XDTE5MDkwNTE0MzE0N1oXDTIyMTEwMTE0MzE0N1owcDEvMC0GCgmSJomT8ixkAQETH0Ew MTQxMEMwMDAwMDE2RDAxRDZBNTQwMDAwMDQ0NDcxGTAXBgNVBAMTEEplZmZyZXkgRSBBbHRt YW4xFTATBgNVBAoTDEF1cmlTdG9yIEluYzELMAkGA1UEBhMCVVMwggEiMA0GCSqGSIb3DQEB AQUAA4IBDwAwggEKAoIBAQCY1TC9QeWnUgEoJ81FcAVnhGn/AWuzvkYRUG5/ZyXDdaM212e8 ybCklgSmZweqNdrfaaHXk9vwjpvpD4YWgb07nJ1QBwlvRV/VPAaDdneIygJJWBCzaMVLttKO 0VimH/I/HUwFBQT2mrktucCEf2qogdi2P+p5nuhnhIUiyZ71Fo43gF6cuXIMV/1rBNIJDuwM Q3H8zi6GL0p4mZFZDDKtbYq2l8+MNxFvMrYcLaJqejQNQRBuZVfv0Fq9pOGwNLAk19baIw3U xdwx+bGpTtS63Py1/57MQ0W/ZXE/Ocnt1qoDLpJeZIuEBKgMcn5/iN9+Ro5zAuOBEKg34wBS 8QCTAgMBAAGjggKcMIICmDAOBgNVHQ8BAf8EBAMCBPAwgYQGCCsGAQUFBwEBBHgwdjAwBggr BgEFBQcwAYYkaHR0cDovL2NvbW1lcmNpYWwub2NzcC5pZGVudHJ1c3QuY29tMEIGCCsGAQUF BzAChjZodHRwOi8vdmFsaWRhdGlvbi5pZGVudHJ1c3QuY29tL2NlcnRzL3RydXN0aWRjYWEx Mi5wN2MwHwYDVR0jBBgwFoAUpHPa72k1inXMoBl7CDL4a4nkQuwwCQYDVR0TBAIwADCCASsG A1UdIASCASIwggEeMIIBGgYLYIZIAYb5LwAGAgEwggEJMEoGCCsGAQUFBwIBFj5odHRwczov L3NlY3VyZS5pZGVudHJ1c3QuY29tL2NlcnRpZmljYXRlcy9wb2xpY3kvdHMvaW5kZXguaHRt bDCBugYIKwYBBQUHAgIwga0MgapUaGlzIFRydXN0SUQgQ2VydGlmaWNhdGUgaGFzIGJlZW4g aXNzdWVkIGluIGFjY29yZGFuY2Ugd2l0aCBJZGVuVHJ1c3QncyBUcnVzdElEIENlcnRpZmlj YXRlIFBvbGljeSBmb3VuZCBhdCBodHRwczovL3NlY3VyZS5pZGVudHJ1c3QuY29tL2NlcnRp ZmljYXRlcy9wb2xpY3kvdHMvaW5kZXguaHRtbDBFBgNVHR8EPjA8MDqgOKA2hjRodHRwOi8v dmFsaWRhdGlvbi5pZGVudHJ1c3QuY29tL2NybC90cnVzdGlkY2FhMTIuY3JsMB8GA1UdEQQY MBaBFGphbHRtYW5AYXVyaXN0b3IuY29tMB0GA1UdDgQWBBR7pHsvL4H5GdzNToI9e5BuzV19 bzAdBgNVHSUEFjAUBggrBgEFBQcDAgYIKwYBBQUHAwQwDQYJKoZIhvcNAQELBQADggEBAFlm JYk4Ff1v/n0foZkv661W4LCRtroBaVykOXetrDDOQNK2N6JdTa146uIZVgBeU+S/0DLvJBKY tkUHQ9ovjXJTsuCBmhIIw3YlHoFxbku0wHEpXMdFUHV3tUodFJJKF3MbC8j7dOMkag59/Mdz Sjszdvit0av9nTxWs/tRKKtSQQlxtH34TouIke2UgP/Nn901QLOrJYJmtjzVz8DW3IYVxfci SBHhbhJTdley5cuEzphELo5NR4gFjBNlxH7G57Hno9+EWILpx302FJMwTgodIBJbXLbPMHou xQbOL2anOTUMKO8oH0QdQHCtC7hpgoQa7UJYJxDBI+PRaQ/HObkwggaRMIIEeaADAgECAhEA +d5Wf8lNDHdw+WAbUtoVOzANBgkqhkiG9w0BAQsFADBKMQswCQYDVQQGEwJVUzESMBAGA1UE ChMJSWRlblRydXN0MScwJQYDVQQDEx5JZGVuVHJ1c3QgQ29tbWVyY2lhbCBSb290IENBIDEw HhcNMTUwMjE4MjIyNTE5WhcNMjMwMjE4MjIyNTE5WjA6MQswCQYDVQQGEwJVUzESMBAGA1UE ChMJSWRlblRydXN0MRcwFQYDVQQDEw5UcnVzdElEIENBIEExMjCCASIwDQYJKoZIhvcNAQEB BQADggEPADCCAQoCggEBANGRTTzPCic0kq5L6ZrUJWt5LE/n6tbPXPhGt2Egv7plJMoEpvVJ JDqGqDYymaAsd8Hn9ZMAuKUEFdlx5PgCkfu7jL5zgiMNnAFVD9PyrsuF+poqmlxhlQ06sFY2 hbhQkVVQ00KCNgUzKcBUIvjv04w+fhNPkwGW5M7Ae5K5OGFGwOoRck9GG6MUVKvTNkBw2/vN MOd29VGVTtR0tjH5PS5yDXss48Yl1P4hDStO2L4wTsW2P37QGD27//XGN8K6amWB6F2XOgff /PmlQjQOORT95PmLkwwvma5nj0AS0CVp8kv0K2RHV7GonllKpFDMT0CkxMQKwoj+tWEWJTiD KSsCAwEAAaOCAoAwggJ8MIGJBggrBgEFBQcBAQR9MHswMAYIKwYBBQUHMAGGJGh0dHA6Ly9j b21tZXJjaWFsLm9jc3AuaWRlbnRydXN0LmNvbTBHBggrBgEFBQcwAoY7aHR0cDovL3ZhbGlk YXRpb24uaWRlbnRydXN0LmNvbS9yb290cy9jb21tZXJjaWFscm9vdGNhMS5wN2MwHwYDVR0j BBgwFoAU7UQZwNPwBovupHu+QucmVMiONnYwDwYDVR0TAQH/BAUwAwEB/zCCASAGA1UdIASC ARcwggETMIIBDwYEVR0gADCCAQUwggEBBggrBgEFBQcCAjCB9DBFFj5odHRwczovL3NlY3Vy ZS5pZGVudHJ1c3QuY29tL2NlcnRpZmljYXRlcy9wb2xpY3kvdHMvaW5kZXguaHRtbDADAgEB GoGqVGhpcyBUcnVzdElEIENlcnRpZmljYXRlIGhhcyBiZWVuIGlzc3VlZCBpbiBhY2NvcmRh bmNlIHdpdGggSWRlblRydXN0J3MgVHJ1c3RJRCBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91bmQg YXQgaHR0cHM6Ly9zZWN1cmUuaWRlbnRydXN0LmNvbS9jZXJ0aWZpY2F0ZXMvcG9saWN5L3Rz L2luZGV4Lmh0bWwwSgYDVR0fBEMwQTA/oD2gO4Y5aHR0cDovL3ZhbGlkYXRpb24uaWRlbnRy dXN0LmNvbS9jcmwvY29tbWVyY2lhbHJvb3RjYTEuY3JsMB0GA1UdJQQWMBQGCCsGAQUFBwMC BggrBgEFBQcDBDAOBgNVHQ8BAf8EBAMCAYYwHQYDVR0OBBYEFKRz2u9pNYp1zKAZewgy+GuJ 5ELsMA0GCSqGSIb3DQEBCwUAA4ICAQAN4YKu0vv062MZfg+xMSNUXYKvHwvZIk+6H1pUmivy DI4I6A3wWzxlr83ZJm0oGIF6PBsbgKJ/fhyyIzb+vAYFJmyI8I/0mGlc+nIQNuV2XY8cypPo VJKgpnzp/7cECXkX8R4NyPtEn8KecbNdGBdEaG4a7AkZ3ujlJofZqYdHxN29tZPdDlZ8fR36 /mAFeCEq0wOtOOc0Eyhs29+9MIZYjyxaPoTS+l8xLcuYX3RWlirRyH6RPfeAi5kySOEhG1qu NHe06QIwpigjyFT6v/vRqoIBr7WpDOSt1VzXPVbSj1PcWBgkwyGKHlQUOuSbHbHcjOD8w8wH SDbL+L2he8hNN54doy1e1wJHKmnfb0uBAeISoxRbJnMMWvgAlH5FVrQWlgajeH/6NbYbBSRx ALuEOqEQepmJM6qz4oD2sxdq4GMN5adAdYEswkY/o0bRKyFXTD3mdqeRXce0jYQbWm7oapqS ZBccFvUgYOrB78tB6c1bxIgaQKRShtWR1zMM0JfqUfD9u8Fg7G5SVO0IG/GcxkSvZeRjhYcb TfqF2eAgprpyzLWmdr0mou3bv1Sq4OuBhmTQCnqxAXr4yVTRYHkp5lCvRgeJAme1OTVpVPth /O7HJ7VuEP9GOr6kCXCXmjB4P3UJ2oU0NqfoQdcSSSt9hliALnExTEjii20B2nSDojGCAxQw ggMQAgEBME4wOjELMAkGA1UEBhMCVVMxEjAQBgNVBAoTCUlkZW5UcnVzdDEXMBUGA1UEAxMO VHJ1c3RJRCBDQSBBMTICEEABbQHWpVVDfbC/HYRdhTowDQYJYIZIAWUDBAIBBQCgggGXMBgG CSqGSIb3DQEJAzELBgkqhkiG9w0BBwEwHAYJKoZIhvcNAQkFMQ8XDTIwMDgxODE1MDExMVow LwYJKoZIhvcNAQkEMSIEIAkuzvlXuwfdOk2ODynS1rS+6qt7k5rG3/SoaaFfX13zMF0GCSsG AQQBgjcQBDFQME4wOjELMAkGA1UEBhMCVVMxEjAQBgNVBAoTCUlkZW5UcnVzdDEXMBUGA1UE AxMOVHJ1c3RJRCBDQSBBMTICEEABbQHWpVVDfbC/HYRdhTowXwYLKoZIhvcNAQkQAgsxUKBO MDoxCzAJBgNVBAYTAlVTMRIwEAYDVQQKEwlJZGVuVHJ1c3QxFzAVBgNVBAMTDlRydXN0SUQg Q0EgQTEyAhBAAW0B1qVVQ32wvx2EXYU6MGwGCSqGSIb3DQEJDzFfMF0wCwYJYIZIAWUDBAEq MAsGCWCGSAFlAwQBAjAKBggqhkiG9w0DBzAOBggqhkiG9w0DAgICAIAwDQYIKoZIhvcNAwIC AUAwBwYFKw4DAgcwDQYIKoZIhvcNAwICASgwDQYJKoZIhvcNAQEBBQAEggEAeHm9ImgiHtKp 4+Ufhz7bRRfS2kv1Awy379Cg5bDYVj77f/IbAiPHo4ZD3f8LItjccOmy0nHeoJ2qk2b43IBX M/iNhyD46kX8OGvlKuBLW/GCDHVkpMnbo7LyOXUaQ75PDjjZ4LnImtLhYNVJrvbdNsxIju82 H0cGlcrFbb1XaQobR+2cfYzmC8Wm/jya/kmlIUVNB88GsO5HrkrTP4M+T6+PCtYeHNz3UWMt VuTMO38QmW9Ry8FA/TYEUBS+oe1WlTved69Z0oPoKaUpdcAa8n+LVrO5NQG354h4A3M3xuzk zF+LJEh+SWzFklndVQ5GCswASXeI46/47TBEQLuaZAAAAAAAAA== --------------ms070203090704080909030005--