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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 9FF46C5B57D for ; Fri, 5 Jul 2019 05:35:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 69B8921850 for ; Fri, 5 Jul 2019 05:35:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="VPVhEFJX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727548AbfGEFfI (ORCPT ); Fri, 5 Jul 2019 01:35:08 -0400 Received: from mout.gmx.net ([212.227.17.22]:43989 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725772AbfGEFfI (ORCPT ); Fri, 5 Jul 2019 01:35:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1562304907; bh=q+upXtoDKWAafgAygSsjZhLobm4fhgszI1IhuproTzs=; h=X-UI-Sender-Class:To:Cc:From:Subject:Date; b=VPVhEFJXt3y6tBujHTigv/9v3V9jwOMzvPYStDVaLK17WjnV61kbORGV054Q2oUvt gXB/XHgfgx6+XcUXcUuZywoY3oC0ZlLPecnAflrim6X5Z3ViOP77gwV6SZ2TuFQJ9+ 9ZuPhBBV8RIgjAtwVuEf8SONq49aKUi20XNeVKBU= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([54.250.245.166]) by mail.gmx.com (mrgmx103 [212.227.17.174]) with ESMTPSA (Nemesis) id 0MJjUO-1hiAwf3sY8-0017xO; Fri, 05 Jul 2019 07:35:06 +0200 To: linux-ext4@vger.kernel.org Cc: "linux-btrfs@vger.kernel.org" From: Qu Wenruo Subject: mke2fs accepts block size not mentioned in its man page Openpgp: preference=signencrypt Autocrypt: addr=quwenruo.btrfs@gmx.com; prefer-encrypt=mutual; keydata= mQENBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAG0IlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT6JAVQEEwEIAD4CGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWCnQUJCWYC bgAKCRDCPZHzoSX+qAR8B/94VAsSNygx1C6dhb1u1Wp1Jr/lfO7QIOK/nf1PF0VpYjTQ2au8 ihf/RApTna31sVjBx3jzlmpy+lDoPdXwbI3Czx1PwDbdhAAjdRbvBmwM6cUWyqD+zjVm4RTG rFTPi3E7828YJ71Vpda2qghOYdnC45xCcjmHh8FwReLzsV2A6FtXsvd87bq6Iw2axOHVUax2 FGSbardMsHrya1dC2jF2R6n0uxaIc1bWGweYsq0LXvLcvjWH+zDgzYCUB0cfb+6Ib/ipSCYp 3i8BevMsTs62MOBmKz7til6Zdz0kkqDdSNOq8LgWGLOwUTqBh71+lqN2XBpTDu1eLZaNbxSI ilaVuQENBFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcga CbPEwhLj1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj /IrRUUka68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fN GSsRb+pKEKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0 q1eW4Jrv0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEv ABEBAAGJATwEGAEIACYWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWBrwIbDAUJA8JnAAAK CRDCPZHzoSX+qA3xB/4zS8zYh3Cbm3FllKz7+RKBw/ETBibFSKedQkbJzRlZhBc+XRwF61mi f0SXSdqKMbM1a98fEg8H5kV6GTo62BzvynVrf/FyT+zWbIVEuuZttMk2gWLIvbmWNyrQnzPl mnjK4AEvZGIt1pk+3+N/CMEfAZH5Aqnp0PaoytRZ/1vtMXNgMxlfNnb96giC3KMR6U0E+siA 4V7biIoyNoaN33t8m5FwEwd2FQDG9dAXWhG13zcm9gnk63BN3wyCQR+X5+jsfBaS4dvNzvQv h8Uq/YGjCoV1ofKYh3WKMY8avjq25nlrhzD/Nto9jHp8niwr21K//pXVA81R2qaXqGbql+zo Message-ID: Date: Fri, 5 Jul 2019 13:35:02 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="lfZJoZCPRYDoYTEwzYP8xtj9QfdVl9SxZ" X-Provags-ID: V03:K1:OYwE119fPogEpRzMvTVPfLn5sJZ3rLTxh+0C4Of2Jss42TkjatC /FqtcQoKO4CpBrBIWXSIZDjzlUmpTkO83wk82yh2/ksLWrSmD6elY7Xdfnyt/radCVZ79Rm l7a6aLpV5vPQds2pnrwfpjeQ6zQGNGTTdPcWcy+HI2bSUL5ai34fsF/8cVNqu7zjCBJmbhb PZPMSM+NM1BHnqfnVbUyA== X-UI-Out-Filterresults: notjunk:1;V03:K0:qW3735Nl0bQ=:8EXN84aCgnl0ZFC860CGL3 A2I/tyZ13PvL4+D23Bnkv/7iTtITnoin1FuWAR5GgiYX1m54iHo+r4uKlike8WDu8Xyb90j2X gSmbpHFRFLN8p+M658RQ1MGWwj6y1xSGZT1sxWAQOwKnSTHbkHzxrPlhQQq58xWqBmHr9slFs oorX9IejOkdL66ScdUPwbP8TvtcZ0tjBCz2GqsKuz0THTQ57j7TOYjPQXdgjW2OaLiIkbKp2N NwPSqUA4BHeYktnQwM35AxU5t98NPSZCH8by/w92DjApYcpgrkHSPHhzpbIDKSo6IsQQdth4M iBm9JD9rgD478G0RSVFVCEmdU0+USFlrhooWU94F4hC7Y8LSjc8YcQDRmdlAw/NSdzgPqFTS8 wGgCRtiU4WOZOrZ9ARKo+8AbPCrRoswqE8PorPaemPZIs7PEa7zdmuaXb2qNom7AEA7a9dKrK jxDiKwjiNfq2c0r+jH0vBOrgrAALZoZuXrb6O0D5Ee9XL2XnIitiX+xPEUdtiIUztTIflGBRl qCHcYKFNLCQbhSGeaA/bo7dZNKbZH2osJB4JaFOEgN8UCra0OFaGfK0pfNaOUp58bisqdTEua WB2sK4AnnqD+GfBHan7kZh0qilgFMcY9OjiM8tgLYg4GXyEpTXBQiSiOlZHLXImeGyiDCp8/F 4PM4oQoVqNw9281bZTJlRWfU3fssZ2druFaP9EX91yTsX1FQZuUBEqFSF+0ev3GCLBWZLIM6t xHqzKt0QMCkPmLIGgrZhk6OWkC9oS3Hh/V+0zw5oOP1DVUCGYXnUqx0Clxp70G9todKT8C6fP LHxCv39bjGlI0XRRJrvnbcvYXq5fG8cU00Uw3uAcWx8O3k2A1ASwFLuunFjTydlyO4XihRnCJ la2b5/9nddndHQ2RRlm81aDSQEAL4e+jZkCoOjStObgPjB2LmXY/LBKSJNBNu4/DDA5NF17NC ik9ogDbeaB1/lYIJHBOO2LEyKvS+O550h5ccc0c5TNyQf3HLsM42rDfiZGL6lK1H1luEa2msC gQ+K4AT8Li5hdVHqPJFj9CPnwNw8RhVRs6LBN+CEYfg4jLbntMMnw+MGEgGYbnBUK3C+aHlsB AdW9zI9uKGcn+A= Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --lfZJoZCPRYDoYTEwzYP8xtj9QfdVl9SxZ Content-Type: multipart/mixed; boundary="ZO9s4Sft2yVHXfC5Nym17WH9jvJ54JfPp"; protected-headers="v1" From: Qu Wenruo To: linux-ext4@vger.kernel.org Cc: "linux-btrfs@vger.kernel.org" Message-ID: Subject: mke2fs accepts block size not mentioned in its man page --ZO9s4Sft2yVHXfC5Nym17WH9jvJ54JfPp Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable Hi, Just doing some tests on aarch64 with 64K page size. Man page of mke2fs only mentions 3 valid block size: 1k, 2k, 4k. But in real world, we can pass 64K as block size for it without any probl= em: $mke2fs -F -t ext3 -b 65536 /dev/loop1 Warning: blocksize 65536 not usable on most systems. mke2fs 1.45.2 (27-May-2019) /dev/loop1 contains a btrfs file system Discarding device blocks: done Creating filesystem with 81920 64k blocks and 81920 inodes Filesystem UUID: 311bb224-6d2d-44a7-9790-92c4878d6549 [...] It's great to see mke2fs accepts 64K as nodesize, which allows btrfs-convert to work. (If blocksize is default to 4K or doesn't accept 64K page size, btrfs-convert can work but can't be mounted on system with 64K page size)= Shouldn't the man page mention all valid values? Thanks, Qu --ZO9s4Sft2yVHXfC5Nym17WH9jvJ54JfPp-- --lfZJoZCPRYDoYTEwzYP8xtj9QfdVl9SxZ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAl0e4YYACgkQwj2R86El /qheSwf8DPxd2eOlBmMHFJC3Ike9CwhGE0kg8LTnNWVi9PIsrnytwVU4LlTVB7mt qVt6SqrFpdBo7jp7xWAQbuV2zX0kKXwzNLiCogy2GsMixy6og/RGpz/gvVh7ZluK jtJ0WDNxN5ZZkjiPBJ+ydLv36BQ4JhYv0Etat1tj/2piQ8wyiMerovB+Qiz+LOzo YugFsA9LiJkwjeR9JMDhLnhMpvhpysiYhkAQ+pCXKfDZnaVFWYJz6TUptI8QlhK1 B8IY7p6jsLHhl3h3XKkZ1buxFqtgB7MDdW88a2DIvKHrGoMJBNxA+H1HUaBGO2lJ v+cKeCLbq5yi2HkJr2pQ/XKQo9qQ2g== =i33W -----END PGP SIGNATURE----- --lfZJoZCPRYDoYTEwzYP8xtj9QfdVl9SxZ--