From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261684AbTDKTud (for ); Fri, 11 Apr 2003 15:50:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261692AbTDKTud (for ); Fri, 11 Apr 2003 15:50:33 -0400 Received: from fmr02.intel.com ([192.55.52.25]:44283 "EHLO caduceus.fm.intel.com") by vger.kernel.org with ESMTP id S261684AbTDKTuc convert rfc822-to-8bit (for ); Fri, 11 Apr 2003 15:50:32 -0400 Message-ID: From: "Perez-Gonzalez, Inaky" To: "'Valdis.Kletnieks@vt.edu'" , "'Shaya Potter'" Cc: "'John Bradford'" , "'Alan Cox'" , "'root@chaos.analogic.com'" , "'Frank Davis'" , "'Linux Kernel Mailing List'" Subject: RE: kernel support for non-english user messages Date: Fri, 11 Apr 2003 13:02:08 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > 3) Version a 500 megabyte file. Change one block. Do it a few more times. > Are you better off copying the whole file (which bloats your disk usage and > kills your I/O bandwidth), or keeping deltas (the list of allocated blocks could be > almost identical except for the replaced/rewritten blocks). However, this DOES > make doing an fsck() a *lot* more interesting - is a block allocated to multiple > files in error or not? For this I would yield to a mechanism similar to COW, block you modify, block you copy ... it would impose some restrictions here and there, but it'd work, I'd say - still it is fun for fsck(), as you are changing some semantics, but it'd be interesting. Iñaky Pérez-González -- Not speaking for Intel -- all opinions are my own (and my fault)