From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932336AbWGDTfU (ORCPT ); Tue, 4 Jul 2006 15:35:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932349AbWGDTfT (ORCPT ); Tue, 4 Jul 2006 15:35:19 -0400 Received: from c-67-177-35-222.hsd1.ut.comcast.net ([67.177.35.222]:46212 "EHLO ns1.utah-nac.org") by vger.kernel.org with ESMTP id S932336AbWGDTfS (ORCPT ); Tue, 4 Jul 2006 15:35:18 -0400 Message-ID: <44AAC436.5040308@wolfmountaingroup.com> Date: Tue, 04 Jul 2006 13:40:38 -0600 From: "Jeffrey V. Merkey" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050513 Fedora/1.7.8-2 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Jeff Garzik CC: Jan Engelhardt , Alan Cox , Diego Calleja , arjan@infradead.org, zdzichu@irc.pl, helgehaf@aitel.hist.no, sithglan@stud.uni-erlangen.de, tytso@mit.edu, linux-kernel@vger.kernel.org Subject: Re: ext4 features References: <20060701163301.GB24570@cip.informatik.uni-erlangen.de> <20060701170729.GB8763@irc.pl> <20060701174716.GC24570@cip.informatik.uni-erlangen.de> <20060701181702.GC8763@irc.pl> <20060703202219.GA9707@aitel.hist.no> <20060703205523.GA17122@irc.pl> <1151960503.3108.55.camel@laptopd505.fenrus.org> <44A9904F.7060207@wolfmountaingroup.com> <20060703232547.2d54ab9b.diegocg@gmail.com> <1151965033.16528.28.camel@localhost.localdomain> <44AA98B5.5060400@wolfmountaingroup.com> <44AAB8E8.3040405@garzik.org> In-Reply-To: <44AAB8E8.3040405@garzik.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jeff Garzik wrote: > Jeffrey V. Merkey wrote: > >> The old novell model is simple. When someone unlinks a file, don't >> delete it, just mv it to another special directory called >> DELETED.SAV. Then setup the >> fs space allocation to reuse these files when the drive fills up by >> oldest files first. It's very simple. Then you have a salvagable file >> system. > > > Such a scheme makes it much more difficult to allocate large, > contiguous runs of free space for storing newly written data. > > Jeff Possibly. Organize the files in DELETED.SAV by disk location and date. Files don't have to adhere to a strict date recycling process. Make it a mount option if the user wants strict date recycling. Make the default to choose between date and file sector locality. Jeff > > >