From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269541AbUHZTxW (ORCPT ); Thu, 26 Aug 2004 15:53:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269527AbUHZTuf (ORCPT ); Thu, 26 Aug 2004 15:50:35 -0400 Received: from viper.oldcity.dca.net ([216.158.38.4]:178 "HELO viper.oldcity.dca.net") by vger.kernel.org with SMTP id S269515AbUHZTqD (ORCPT ); Thu, 26 Aug 2004 15:46:03 -0400 Subject: Re: silent semantic changes with reiser4 From: Lee Revell To: Christoph Hellwig Cc: Hans Reiser , Andrew Morton , linux-fsdevel@vger.kernel.org, linux-kernel , flx@namesys.com, torvalds@osdl.org, reiserfs-list@namesys.com In-Reply-To: <20040826193436.GA8693@lst.de> References: <20040824202521.GA26705@lst.de> <412CEE38.1080707@namesys.com> <20040825152805.45a1ce64.akpm@osdl.org> <412D9FE6.9050307@namesys.com> <20040826014542.4bfe7cc3.akpm@osdl.org> <412DAC59.4010508@namesys.com> <1093548414.5678.74.camel@krustophenia.net> <20040826193436.GA8693@lst.de> Content-Type: text/plain Message-Id: <1093549535.5678.79.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Thu, 26 Aug 2004 15:45:36 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2004-08-26 at 15:34, Christoph Hellwig wrote: > On Thu, Aug 26, 2004 at 03:26:55PM -0400, Lee Revell wrote: > > OK, real world example. My roommate has an AKAI MPC-2000, a very > > popular hardware sampler from the 90's. The disk format is known,there > > are a few utilities to edit the disks on a PC and extract the PCM > > samples, but there are no tools to mount it on a modern PC. Are you > > saying that, since I know the MPC disk format, I could write a reiser4 > > plugin to mount an MPC drive? > > > > If so, then Hans has an excellent point. Users do want this kind of > > thing, and it is worth having to fix tar et al. > > You don't need reiser4 for that, writing read-only linux filesystems is > trivial as soon as you have a specification of the ondisk format. > Of course I could just write an MPC filesystem driver. And, like Andrew said, a filesystem normally gets new features with 'patch -p1'. My question, which was answered by a previous post, was whether the same could be done in a reiser4 plugins. Lee