From: Austin S Hemmelgarn Subject: Re: [PATCH 0/3] Remove ext3 filesystem driver Date: Wed, 15 Jul 2015 11:20:55 -0400 Message-ID: <55A67A57.8010502@gmail.com> References: <1436955987-7305-1-git-send-email-jack@suse.com> <20150715141836.GA18400@thunk.org> <55A676BF.8020903@infradead.org> <55A67790.80802@infradead.org> <55A6780E.2040702@redhat.com> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms020403030504010409020501" To: Eric Sandeen , Randy Dunlap , Theodore Ts'o , Jan Kara , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, LKML , Andrew Morton , Andreas Dilger , Jens Axboe Return-path: In-Reply-To: <55A6780E.2040702@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org This is a cryptographically signed message in MIME format. --------------ms020403030504010409020501 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: quoted-printable On 2015-07-15 11:11, Eric Sandeen wrote: > On 7/15/15 10:09 AM, Randy Dunlap wrote: >> On 07/15/15 08:05, Randy Dunlap wrote: >>> On 07/15/15 07:18, Theodore Ts'o wrote: >>>> On Wed, Jul 15, 2015 at 12:26:24PM +0200, Jan Kara wrote: >>>>> >>>>> so I have created this patch set which removes ext3 driver (and = some related support >>>>> code) from the kernel. See changelog of patch 2/3 for more details.= If noone objects, >>>>> I will queue the series in my tree for the next merge window. >>>>> >>>>> Jens, are you OK with me merging patch 3/3 or do you want me to sen= d it to you once >>>>> the first two patches get merged? >>>>> >>>>> Ted, this also touches ext4 driver so that it always handles ext3 f= ilesystems so ack >>>>> from you would be nice. >>>> >>>> Got tired of maintaining ext3, eh? :-) >>>> >>>> As a minor nit, I wonder if it's worth while to put in some hackery = in >>>> fs/Kconfig so that if someone only has CONFIG_FS_EXT3 defined, but n= ot >>>> CONFIG_FS_EXT4 defined, that it will automatically enable >>>> CONFIG_FS_EXT4 instead? Otherwise someone upgrading their kernel >>>> might accidentally end up getting a non-functional kernel. >>>> >>>> i.e., something like this? (not tested!) >>>> >>>> config FS_EXT3 >>>> def_bool n >>>> select FS_EXT4 >>> >>> >>> Yes, if someone is going to force us to use ext4, some automation wou= ld >>> be helpful. >>> >>> Thanks, >>> >> >> Are there any other changes required, e.g., to /etc/fstab ? >> >> btw, this looks like an April 1 joke to me. > > no fstab changes required. The ext4 driver has been able to register > itself as ext[23] for quite some time now, so it's transparent. > > Many/most distros have been using the ext4.ko driver for ext3 & ext2 fo= r > years. You may already be using that on some boxes, and not even know = it. > ;) Yeah, 99% of the systems I've seen in the past 2 years have been using=20 either the ext4 driver, or using exclusively ext2 (mostly embedded=20 systems, and they usually choose ext2 because it's _very_ lightweight=20 compared to ext[34] and the other alternatives). There really isn't much of a clear distinction between ext3 and ext4 (at = least from an end user standpoint), other than the fact that there are=20 some options that only the ext4 driver understands (like extent based=20 allocation). --------------ms020403030504010409020501 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIGuDCC BrQwggScoAMCAQICAxBuVTANBgkqhkiG9w0BAQ0FADB5MRAwDgYDVQQKEwdSb290IENBMR4w HAYDVQQLExVodHRwOi8vd3d3LmNhY2VydC5vcmcxIjAgBgNVBAMTGUNBIENlcnQgU2lnbmlu ZyBBdXRob3JpdHkxITAfBgkqhkiG9w0BCQEWEnN1cHBvcnRAY2FjZXJ0Lm9yZzAeFw0xNTAz MjUxOTM0MzhaFw0xNTA5MjExOTM0MzhaMGMxGDAWBgNVBAMTD0NBY2VydCBXb1QgVXNlcjEj MCEGCSqGSIb3DQEJARYUYWhmZXJyb2luN0BnbWFpbC5jb20xIjAgBgkqhkiG9w0BCQEWE2Fo ZW1tZWxnQG9oaW9ndC5jb20wggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQCdD/zW 2rRAFCLnDfXpWxU1+ODqRVUgzHvrRO7ADUxRo1CBDc3JSX5TIW2OGmQ3DAKGOACp8Z0sgxMc B05tzAZ/M7m4jajVrwwdVCdrwVGxTdAai7Kwg4ZCVfyMVhcwo8R2eW3QahBx34G0RKumK9sZ ZQSQ+zULAzpY6uz7T1sAk/erMoivRXF6u8WvOsLkOD1F/Xyv1ZccSUG5YeDgZgc0nZUBvyIp zXSHjgWerFkrxEM3y2z/Ff3eL1sgGYecV/I1F+I5S01V7Kclt/qRW10c/4JEGRcI1FmrJBPu BtMYPbg/3Y9LZROYN+mVIFxZxOfrmjfFZ96xt/TaMXo8vcEKtWcNEjhGBjEbfMUEm4aq8ygQ 4MuEcpJc8DJCHBkg2KBk13DkbU2qNepTD6Uip1C+g+KMr0nd6KOJqSH27ZuNY4xqV4hIxFHp ex0zY7mq6fV2o6sKBGQzRdI20FDYmNjsLJwjH6qJ8laxFphZnPRpBThmu0AjuBWE72GnI1oA aO+bs92MQGJernt7hByCnDO82W/ykbVz+Ge3Sax8NY0m2Xdvp6WFDY/PjD9CdaJ9nwQGsUSa N54lrZ2qMTeCI9Vauwf6U69BA42xgk65VvxvTNqji+tZ4aZbarZ7el2/QDHOb/rRwlCFplS/ z4l1f1nOrE6bnDl5RBJyW3zi74P6GwIDAQABo4IBWTCCAVUwDAYDVR0TAQH/BAIwADBWBglg hkgBhvhCAQ0ESRZHVG8gZ2V0IHlvdXIgb3duIGNlcnRpZmljYXRlIGZvciBGUkVFIGhlYWQg b3ZlciB0byBodHRwOi8vd3d3LkNBY2VydC5vcmcwDgYDVR0PAQH/BAQDAgOoMEAGA1UdJQQ5 MDcGCCsGAQUFBwMEBggrBgEFBQcDAgYKKwYBBAGCNwoDBAYKKwYBBAGCNwoDAwYJYIZIAYb4 QgQBMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEFBQcwAYYWaHR0cDovL29jc3AuY2FjZXJ0Lm9y ZzAxBgNVHR8EKjAoMCagJKAihiBodHRwOi8vY3JsLmNhY2VydC5vcmcvcmV2b2tlLmNybDA0 BgNVHREELTArgRRhaGZlcnJvaW43QGdtYWlsLmNvbYETYWhlbW1lbGdAb2hpb2d0LmNvbTAN BgkqhkiG9w0BAQ0FAAOCAgEAGvl7xb42JMRH5D/vCIDYvFY3dR2FPd5kmOqpKU/fvQ8ovmJa p5N/FDrsCL+YdslxPY+AAn78PYmL5pFHTdRadT++07DPIMtQyy2qd+XRmz6zP8Il7vGcEDmO WmMLYMq4xV9s/N7t7JJp6ftdIYUcoTVChUgilDaRWMLidtslCdRsBVfUjPb1bF5Ua31diKDP e0M9/e2CU36rbcTtiNCXhptMigzuL3zJXUf2B9jyUV8pnqNEQH36fqJ7YTBLcpq3aYa2XbAH Hgx9GehJBIqwspDmhPCFZ/QmqUXCkt+XfvinQ2NzKR6P3+OdYbwqzVX8BdMeojh7Ig8x/nIx mQ+/ufstL1ZYp0bg13fyK/hPYSIBpayaC76vzWovkIm70DIDRIFLi20p/qTd7rfDYy831Hjm +lDdCECF9bIXEWFk33kA97dgQIMbf5chEmlFg8S0e4iw7LMjvRqMX3eCD8GJ2+oqyZUwzZxy S0Mx+rBld5rrN7LsXwZ671HsGqNeYbYeU25e7t7/Gcc6Bd/kPfA+adEuUGFcvUKH3trDYqNq 6mOkAd8WO/mQadlc3ztS++XDMhmIpfBre9MPAr6usqf+wc+R8Nk9KLK39kEgrqVfzc/fgf8L MaD4rHnusdg4gca6Yi+kNrm99anw7SwaBrBvULYBp7ixNRUhaYiNW4YjTrYxggShMIIEnQIB ATCBgDB5MRAwDgYDVQQKEwdSb290IENBMR4wHAYDVQQLExVodHRwOi8vd3d3LmNhY2VydC5v cmcxIjAgBgNVBAMTGUNBIENlcnQgU2lnbmluZyBBdXRob3JpdHkxITAfBgkqhkiG9w0BCQEW EnN1cHBvcnRAY2FjZXJ0Lm9yZwIDEG5VMAkGBSsOAwIaBQCgggH1MBgGCSqGSIb3DQEJAzEL BgkqhkiG9w0BBwEwHAYJKoZIhvcNAQkFMQ8XDTE1MDcxNTE1MjA1NVowIwYJKoZIhvcNAQkE MRYEFGJ7I9Av6iyBenlHKINEi8ZjfCeCMGwGCSqGSIb3DQEJDzFfMF0wCwYJYIZIAWUDBAEq MAsGCWCGSAFlAwQBAjAKBggqhkiG9w0DBzAOBggqhkiG9w0DAgICAIAwDQYIKoZIhvcNAwIC AUAwBwYFKw4DAgcwDQYIKoZIhvcNAwICASgwgZEGCSsGAQQBgjcQBDGBgzCBgDB5MRAwDgYD VQQKEwdSb290IENBMR4wHAYDVQQLExVodHRwOi8vd3d3LmNhY2VydC5vcmcxIjAgBgNVBAMT GUNBIENlcnQgU2lnbmluZyBBdXRob3JpdHkxITAfBgkqhkiG9w0BCQEWEnN1cHBvcnRAY2Fj ZXJ0Lm9yZwIDEG5VMIGTBgsqhkiG9w0BCRACCzGBg6CBgDB5MRAwDgYDVQQKEwdSb290IENB MR4wHAYDVQQLExVodHRwOi8vd3d3LmNhY2VydC5vcmcxIjAgBgNVBAMTGUNBIENlcnQgU2ln bmluZyBBdXRob3JpdHkxITAfBgkqhkiG9w0BCQEWEnN1cHBvcnRAY2FjZXJ0Lm9yZwIDEG5V MA0GCSqGSIb3DQEBAQUABIICAGwuq1Ej4AZCUSBm1DyN5SxsOOzkFJpixwFPilZoqRZLfCrl zY7fDtnFoOTFadJ9vgfl7dbG3BbeahT5ENl2AMrDxLp8vTpiBU/6vbtyYx64Pgvf8uxYGxu2 54jzTOSp4eM4zQOCNda3IvuvWeo1t5TfIfbasNYdbUj/iWnjR6DWPc32iRxOfb25H/Y/iM4U Mion2+UmZfGftBeeNcmKohnkVLHWJq1Qld4aD5ocA9ubrX810QA4HWZixrmZ7t1z6GlAc0o4 AnJBR5UF9IMHdHKGOyGwWQyoya7RS+pGYlyBCNjr7W7it51IV6RSsfEZgf1Z11OU3BpX/mRL dBCWqQ+rdKl4inKBnWeaSd9XBWsSZZor9+gEJdSLvczVNoZWFihj2TnVQ9EgRBkg1Qi9JDTr vv9rLkIu7KgUiRGBMhYe6Z8A7BFILD9wXpy+bO98cw8gUEYVmM75TP09OuCcnTwO/vbs6K0E bcmpSgxlHf/JK7Gx9loHvM1c7y2ZUz/1zlar/oCffGRLHeLXYbqNV5Ed5p6vM5cmWrtZ+idj x9TTDZs212+OJaTlm2W/oz4LNj0yjT/IulLhKPs+0F0BJR0WuhPgpCfu160vz3sh4DjaqjdM OjVygHsWGkGREL9qwYjuisRc5yHMNp7hmvxTqHGxU+C7A8zmE3S6On04S1I5AAAAAAAA --------------ms020403030504010409020501--