From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Cipher TLSv1:DES-CBC3-SHA:168) (Exim 3.31-VA-mm2 #1 (Debian)) id 1AEtsh-0006NG-00 for ; Wed, 29 Oct 2003 09:13:15 -0800 Received: from smtp2.wanadoo.fr ([193.252.22.29] helo=mwinf0202.wanadoo.fr) by sc8-sf-mx1.sourceforge.net with esmtp (Exim 4.24) id 1AEtsh-0001pr-C4 for user-mode-linux-devel@lists.sourceforge.net; Wed, 29 Oct 2003 09:13:15 -0800 Received: from doggy.fute.lan (AMontsouris-108-1-18-216.w80-15.abo.wanadoo.fr [80.15.147.216]) by mwinf0202.wanadoo.fr (SMTP Server) with ESMTP id 36066A400248 for ; Wed, 29 Oct 2003 18:13:09 +0100 (CET) Received: from snide by doggy.fute.lan with local (Exim 3.35 #1 (Debian)) id 1AEtsa-0001Qq-00 for ; Wed, 29 Oct 2003 18:13:08 +0100 From: Steve Schnepp Subject: Re: [uml-devel] About COW & filesystems Message-ID: <20031029171307.GB2182@fute.lan> References: <200310281723.h9SHNLLJ002565@ccure.karaya.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: Date: Wed, 29 Oct 2003 18:13:08 +0100 To: user-mode-linux-devel@lists.sourceforge.net On Wed, Oct 29, 2003 at 06:16:18AM -0800, James McMechan wrote: > [Plenty interesting stuff about the future of COW] I did a kernel module to support user space loop devices. [ actually any userspace block device ] The idea is that you open a /dev/ulb[a-z] and the kernel module connects it to /dev/ulc[0-26] (major/minor are assigned automatically by the kernel) Then a user-space helper reads /dev/ulc0 for commands & data, and reads/writes somewhere (usually in a file), and then writes back the result to /dev/ulc0. For now it's heavily 2.4.x oriented... The code isn't in a really good shape (lots of hardcoded values) But, since i don't have much spare time i decided to publish it here in case of someone wants to have a look at it. The code should be almost self-explaining. I should be able to resume working on it soon, but anyway... your feedback is very welcome. ( i'm not a good C hacker, and i *do* like to improve myself ) URL: http://snide.free.fr/uldd/ Steve -- GPG public key available from http://snide.free.fr/gpg/snide.free.fr.asc Or by email to "snide at free.fr" with "send key pub" as subject Fingerprint: 19D7 12ED 5A37 4F29 8FDA 19B0 6DFD 3A54 A753 EA6F ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel