From: supersud501 Subject: Re: [PATCH, RFC] Add new "development flag" to the ext4 filesystem Date: Wed, 30 Jan 2008 23:26:20 +0100 Message-ID: <47A0F98C.1080304@yahoo.de> References: <20080122231707.GA21968@mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-ext4@vger.kernel.org To: Theodore Tso Return-path: Received: from smtp002.mail.ukl.yahoo.com ([217.12.11.33]:37183 "HELO smtp002.mail.ukl.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1753926AbYA3W3z (ORCPT ); Wed, 30 Jan 2008 17:29:55 -0500 In-Reply-To: <20080122231707.GA21968@mit.edu> Sender: linux-ext4-owner@vger.kernel.org List-ID: Theodore Tso wrote: > As discussed on RFC, this flag is simply a generic "this is a > crash/burn test filesystem" marker. If it is set, then filesystem > code which is "in development" will be allowed to mount the > filesystem. Filesystem code which is not considered ready for > prime-time will check for this flag, and if it is not set, it will > refuse to touch the filesystem. > > As we start rolling ext4 out to distro's like Fedora, et. al, this > makes it less likely that a user might accidentally start using ext4 > on a production filesystem; a bad thing, since that will essentially > make it be unfsckable until e2fsprogs catches up. > > - Ted > > how can i set this "flag" on my filesystem? i've never set any flags before so i just removed the code from ext4-module to mount my filesystems, but setting the flag once would make it easier i think :)