From: Austin S Hemmelgarn Subject: Re: [GIT PULL] Ext3 removal, quota & udf fixes Date: Wed, 2 Sep 2015 09:33:26 -0400 Message-ID: <55E6FAA6.4010407@gmail.com> References: <20150831061920.GA2751@quack.suse.cz> <55E4D5DE.2030709@gmail.com> <55E5FF01.2000304@gmail.com> <20150902075821.53108f0e@as> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-512; boundary="------------ms030802010809040805060106" Cc: Albino B Neto , Raymond Jennings , Linus Torvalds , Jan Kara , LKML , "linux-ext4@vger.kernel.org" , linux-fsdevel To: Chuck Ebbert Return-path: In-Reply-To: <20150902075821.53108f0e@as> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org This is a cryptographically signed message in MIME format. --------------ms030802010809040805060106 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: quoted-printable On 2015-09-02 07:58, Chuck Ebbert wrote: > On Tue, 1 Sep 2015 15:39:45 -0400 > Austin S Hemmelgarn wrote: > >> On 2015-09-01 06:29, Albino B Neto wrote: >>> 2015-08-31 19:31 GMT-03:00 Raymond Jennings : >>>> I think also that we should remove the ext2 driver before we remove = the ext3 >>>> driver. >>> >>> Yes. It is logical to remove the old ext2 drive, because there are >>> more computers with ext3 that ext2. Ext2 is obsolete by existing >>> technologies. >>> >> NO, it is not logical. A vast majority of Android smartphones in the >> wild use ext2, as do a very significant portion of embedded systems th= at >> don't have room for the few hundred kilobytes of extra code that the >> ext4 driver has in comparison to ext2. > > Would it be possible to discard the code used for ext4 and ext3 > features at module init time? So you could do something like: > > modprobe ext4 no_ext4 no_ext3 > > and all the space used by those functions would be freed and the > filesystem driver would mark all the ext3/ext4 features as > unsupported. > Personally, I think this is a great idea. It would allow people who=20 need the low memory usage to transition over to the ext4 driver while=20 keeping the memory usage low. In such a case, I would almost suggest=20 making an alias for the ext4 module (extfs maybe?) as modprobe ext4=20 no_ext4 has the potential to significantly confuse people. --------------ms030802010809040805060106 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgMFADCABgkqhkiG9w0BBwEAAKCC Brgwgga0MIIEnKADAgECAgMQblUwDQYJKoZIhvcNAQENBQAweTEQMA4GA1UEChMHUm9vdCBD QTEeMBwGA1UECxMVaHR0cDovL3d3dy5jYWNlcnQub3JnMSIwIAYDVQQDExlDQSBDZXJ0IFNp Z25pbmcgQXV0aG9yaXR5MSEwHwYJKoZIhvcNAQkBFhJzdXBwb3J0QGNhY2VydC5vcmcwHhcN MTUwMzI1MTkzNDM4WhcNMTUwOTIxMTkzNDM4WjBjMRgwFgYDVQQDEw9DQWNlcnQgV29UIFVz ZXIxIzAhBgkqhkiG9w0BCQEWFGFoZmVycm9pbjdAZ21haWwuY29tMSIwIAYJKoZIhvcNAQkB FhNhaGVtbWVsZ0BvaGlvZ3QuY29tMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA nQ/81tq0QBQi5w316VsVNfjg6kVVIMx760TuwA1MUaNQgQ3NyUl+UyFtjhpkNwwChjgAqfGd LIMTHAdObcwGfzO5uI2o1a8MHVQna8FRsU3QGouysIOGQlX8jFYXMKPEdnlt0GoQcd+BtESr pivbGWUEkPs1CwM6WOrs+09bAJP3qzKIr0VxervFrzrC5Dg9Rf18r9WXHElBuWHg4GYHNJ2V Ab8iKc10h44FnqxZK8RDN8ts/xX93i9bIBmHnFfyNRfiOUtNVeynJbf6kVtdHP+CRBkXCNRZ qyQT7gbTGD24P92PS2UTmDfplSBcWcTn65o3xWfesbf02jF6PL3BCrVnDRI4RgYxG3zFBJuG qvMoEODLhHKSXPAyQhwZINigZNdw5G1NqjXqUw+lIqdQvoPijK9J3eijiakh9u2bjWOMaleI SMRR6XsdM2O5qun1dqOrCgRkM0XSNtBQ2JjY7CycIx+qifJWsRaYWZz0aQU4ZrtAI7gVhO9h pyNaAGjvm7PdjEBiXq57e4QcgpwzvNlv8pG1c/hnt0msfDWNJtl3b6elhQ2Pz4w/QnWifZ8E BrFEmjeeJa2dqjE3giPVWrsH+lOvQQONsYJOuVb8b0zao4vrWeGmW2q2e3pdv0Axzm/60cJQ haZUv8+JdX9ZzqxOm5w5eUQSclt84u+D+hsCAwEAAaOCAVkwggFVMAwGA1UdEwEB/wQCMAAw VgYJYIZIAYb4QgENBEkWR1RvIGdldCB5b3VyIG93biBjZXJ0aWZpY2F0ZSBmb3IgRlJFRSBo ZWFkIG92ZXIgdG8gaHR0cDovL3d3dy5DQWNlcnQub3JnMA4GA1UdDwEB/wQEAwIDqDBABgNV HSUEOTA3BggrBgEFBQcDBAYIKwYBBQUHAwIGCisGAQQBgjcKAwQGCisGAQQBgjcKAwMGCWCG SAGG+EIEATAyBggrBgEFBQcBAQQmMCQwIgYIKwYBBQUHMAGGFmh0dHA6Ly9vY3NwLmNhY2Vy dC5vcmcwMQYDVR0fBCowKDAmoCSgIoYgaHR0cDovL2NybC5jYWNlcnQub3JnL3Jldm9rZS5j cmwwNAYDVR0RBC0wK4EUYWhmZXJyb2luN0BnbWFpbC5jb22BE2FoZW1tZWxnQG9oaW9ndC5j b20wDQYJKoZIhvcNAQENBQADggIBABr5e8W+NiTER+Q/7wiA2LxWN3UdhT3eZJjqqSlP370P KL5iWqeTfxQ67Ai/mHbJcT2PgAJ+/D2Ji+aRR03UWnU/vtOwzyDLUMstqnfl0Zs+sz/CJe7x nBA5jlpjC2DKuMVfbPze7eySaen7XSGFHKE1QoVIIpQ2kVjC4nbbJQnUbAVX1Iz29WxeVGt9 XYigz3tDPf3tglN+q23E7YjQl4abTIoM7i98yV1H9gfY8lFfKZ6jREB9+n6ie2EwS3Kat2mG tl2wBx4MfRnoSQSKsLKQ5oTwhWf0JqlFwpLfl374p0Njcykej9/jnWG8Ks1V/AXTHqI4eyIP Mf5yMZkPv7n7LS9WWKdG4Nd38iv4T2EiAaWsmgu+r81qL5CJu9AyA0SBS4ttKf6k3e63w2Mv N9R45vpQ3QhAhfWyFxFhZN95APe3YECDG3+XIRJpRYPEtHuIsOyzI70ajF93gg/BidvqKsmV MM2ccktDMfqwZXea6zey7F8Geu9R7BqjXmG2HlNuXu7e/xnHOgXf5D3wPmnRLlBhXL1Ch97a w2KjaupjpAHfFjv5kGnZXN87UvvlwzIZiKXwa3vTDwK+rrKn/sHPkfDZPSiyt/ZBIK6lX83P 34H/CzGg+Kx57rHYOIHGumIvpDa5vfWp8O0sGgawb1C2Aae4sTUVIWmIjVuGI062MYIE0TCC BM0CAQEwgYAweTEQMA4GA1UEChMHUm9vdCBDQTEeMBwGA1UECxMVaHR0cDovL3d3dy5jYWNl cnQub3JnMSIwIAYDVQQDExlDQSBDZXJ0IFNpZ25pbmcgQXV0aG9yaXR5MSEwHwYJKoZIhvcN AQkBFhJzdXBwb3J0QGNhY2VydC5vcmcCAxBuVTANBglghkgBZQMEAgMFAKCCAiEwGAYJKoZI hvcNAQkDMQsGCSqGSIb3DQEHATAcBgkqhkiG9w0BCQUxDxcNMTUwOTAyMTMzMzI2WjBPBgkq hkiG9w0BCQQxQgRA4lhiTBJWoKm1p9VZ2Y6l9ruZEkY3nhDtt/ad9ZExZOzDfkotszU8UEyV 0wzN9xA866SrIemoVPBShEbJk6MX9TBsBgkqhkiG9w0BCQ8xXzBdMAsGCWCGSAFlAwQBKjAL BglghkgBZQMEAQIwCgYIKoZIhvcNAwcwDgYIKoZIhvcNAwICAgCAMA0GCCqGSIb3DQMCAgFA MAcGBSsOAwIHMA0GCCqGSIb3DQMCAgEoMIGRBgkrBgEEAYI3EAQxgYMwgYAweTEQMA4GA1UE ChMHUm9vdCBDQTEeMBwGA1UECxMVaHR0cDovL3d3dy5jYWNlcnQub3JnMSIwIAYDVQQDExlD QSBDZXJ0IFNpZ25pbmcgQXV0aG9yaXR5MSEwHwYJKoZIhvcNAQkBFhJzdXBwb3J0QGNhY2Vy dC5vcmcCAxBuVTCBkwYLKoZIhvcNAQkQAgsxgYOggYAweTEQMA4GA1UEChMHUm9vdCBDQTEe MBwGA1UECxMVaHR0cDovL3d3dy5jYWNlcnQub3JnMSIwIAYDVQQDExlDQSBDZXJ0IFNpZ25p bmcgQXV0aG9yaXR5MSEwHwYJKoZIhvcNAQkBFhJzdXBwb3J0QGNhY2VydC5vcmcCAxBuVTAN BgkqhkiG9w0BAQEFAASCAgBNGFcXO5MXA0ZHDwBydbc7/RaqgHXqJ3NoK0BTXELAlPKyatWB Swmc/kHq+8FCN9RgoO7HQDuGmwJZpRNZN3c6NPsFjOFRimwOEGONxdm3b37pT/J5nDGo1txj DD7pOmIkkynWlyOGeqrbNvGsY1I0mFY4RNQX57i3nSFIo5LUJot1ABpu5DMF3xexEsLFORap nX1XPOtE0gJvG7HkttnJ5hYw05cXx70stc+MVSoGVJUgQb1UgIdUjRgR6oY5ipxd3XNn/w3v ZwsfxbfW+kiPsI9qh/u4BVAW9gfcWIyJtnE9jIC3zFdnLXbX14BJ/2mUw4QcNRiWBRyn6xcb DaCZReLxh/8JNzLhVaZwSwwjnk/yAXcUOfKGwHOvwv83yvXzsWJNumg+vylNtq7iHGzC7pjk w9ObaJZxOQ3k9i9SuwC+bctDS59Qr2WKurPORV4fEWOrAms/XAQgnTXjKYstPoiRIZo0sgkA W8FgV5Q0M62YPLhReF0WkiIshWdSDuzaN99hdeCZTbdXhh2XKpcQfZStXr4P795/YVgFg2p7 zoN4jNnkmr+JnQY3HWZ3gDR4LrnWPDqag0oFqz2USqSvXb463yUQOyY/Fz4B7eLkmhHqrgEZ QrQW1mrrHqTUbpR3T3rXFd7Ai3WJCPuGeV5xCrupEezTYnKwqqzl4ChbWwAAAAAAAA== --------------ms030802010809040805060106--