From owner-svn-src-all@freebsd.org Wed Dec 5 18:56:49 2018 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 365CA1324A43; Wed, 5 Dec 2018 18:56:49 +0000 (UTC) (envelope-from cse.cem@gmail.com) Received: from mail-it1-f180.google.com (mail-it1-f180.google.com [209.85.166.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8EAFB84EF2; Wed, 5 Dec 2018 18:56:48 +0000 (UTC) (envelope-from cse.cem@gmail.com) Received: by mail-it1-f180.google.com with SMTP id b5so21902214iti.2; Wed, 05 Dec 2018 10:56:48 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:reply-to :from:date:message-id:subject:to:cc; bh=JScy33BtMVaZO6oS9fCMjURD4GIMBehpNQLo+KGB6Ho=; b=b5Fg9c4egMqIw+7W2EsnzHlNQvVGFhFujoehjkFnHD1+oVN15f636LxWFUapB61r1w M0PrkjQLX1Q7iNCAmmiYo5AkgEBOk36bmRof97ohIR0Aywf6W9jWO7FtXp/iO90GdYU0 cQ+a8u1Fz7kniN0Ab4lc0BKYB65m+9jxo3PSat8kWG0qPRqkBKUe5/Rg5HRyNt8+xfLI g0NTrYlJ1zKU65otKcva3UKeUPrffE3NQK0PTDjUrxd7D3H0p8HyQWFawCatHW7J/+Sf 3zRuR8wmB8JcvF92soFImzAO+f61E98tKm+ds410vD1irn813GVaZLIH2Ca/2HcdUn/E uTZw== X-Gm-Message-State: AA+aEWanS5htHv1Tte83JLm/CHY7/erAsVrF+RmM3bRO3wjUOCh6oQKq YQtr97xDArkwXvzupxM7evfNBS0e X-Google-Smtp-Source: AFSGD/WhtpOWiHCtth+yrVmsWcK4wcEze5TJ5eiADT97NcBY+dyhPRhHS1tHraanwcX7p82/bR3hQQ== X-Received: by 2002:a24:5608:: with SMTP id o8mr9708992itb.35.1544036202265; Wed, 05 Dec 2018 10:56:42 -0800 (PST) Received: from mail-it1-f182.google.com (mail-it1-f182.google.com. [209.85.166.182]) by smtp.gmail.com with ESMTPSA id n16sm8415344iom.58.2018.12.05.10.56.41 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 05 Dec 2018 10:56:42 -0800 (PST) Received: by mail-it1-f182.google.com with SMTP id c9so21915126itj.1; Wed, 05 Dec 2018 10:56:41 -0800 (PST) X-Received: by 2002:a24:b64a:: with SMTP id d10mr9917817itj.149.1544036201685; Wed, 05 Dec 2018 10:56:41 -0800 (PST) MIME-Version: 1.0 References: <201812042251.wB4MpE2m018782@repo.freebsd.org> <343a2f70-fb4c-bc5c-d32c-789e7797a628@FreeBSD.org> <44199325-5b07-5195-1157-63c197eb5f07@FreeBSD.org> <2b9783a8-9254-4b70-65c8-7e27b43b0726@FreeBSD.org> In-Reply-To: <2b9783a8-9254-4b70-65c8-7e27b43b0726@FreeBSD.org> Reply-To: cem@freebsd.org From: Conrad Meyer Date: Wed, 5 Dec 2018 10:56:30 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: svn commit: r341505 - head/share/man/man5 To: Pedro Giffuni Cc: src-committers , svn-src-all@freebsd.org, svn-src-head@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 8EAFB84EF2 X-Spamd-Result: default: False [-5.65 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; HAS_REPLYTO(0.00)[cem@freebsd.org]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; REPLYTO_ADDR_EQ_FROM(0.00)[]; RCVD_COUNT_THREE(0.00)[4]; MX_GOOD(-0.01)[cached: alt3.gmail-smtp-in.l.google.com]; NEURAL_HAM_SHORT(-0.99)[-0.993,0]; FORGED_SENDER(0.30)[cem@freebsd.org,csecem@gmail.com]; RCVD_TLS_LAST(0.00)[]; R_DKIM_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; TAGGED_FROM(0.00)[]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_NEQ_ENVFROM(0.00)[cem@freebsd.org,csecem@gmail.com]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[freebsd.org]; IP_SCORE(-2.65)[ip: (-8.38), ipnet: 209.85.128.0/17(-3.48), asn: 15169(-1.30), country: US(-0.09)]; RCVD_IN_DNSWL_NONE(0.00)[180.166.85.209.list.dnswl.org : 127.0.5.0]; RWL_MAILSPIKE_POSSIBLE(0.00)[180.166.85.209.rep.mailspike.net : 127.0.0.17] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Dec 2018 18:56:49 -0000 On Wed, Dec 5, 2018 at 10:47 AM Pedro Giffuni wrote: > On 05/12/2018 12:41, Conrad Meyer wrote: > > The Linux model is that the current incarnation of the ext2/3/4 driver > > is named "ext4," and that's what Linux users expect. You can mount > > any ext2/3/4 filesystem with the Linux ext4 driver. For ext4, it was > > a result of wanting to keep ext3 stable while developing ext4 in-tree. > > (For a while, it was called "ext4dev"). ext4 is long-since stabilized > > and ext3 became fully redundant with ext4, so I guess they dropped it. > > From a linux user/marketing perspective you are right. > > Are we sure there will never be an ext5fs? I would hate to start moving > a filesystem in the tree every time a new release comes out. While I think we can be reasonably confident ext4 is the last one, it's somewhat irrelevant. Linux isn't spawning new extN's at anything like the frequency we do releases; ext3 was current from about 2001 to 2008, and ext4 from 2008 to present. On top of that, there's no particular reason the source code location in the tree has to be tied to the name of the driver, or that mount(8) couldn't do the right thing given any "-t ext[234]" or "-t ext[234]fs". Best, Conrad