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 1A3OZ6-0002UT-00 for ; Sat, 27 Sep 2003 16:33:28 -0700 Received: from [205.150.200.166] (helo=noxmail.sandelman.ottawa.on.ca) by sc8-sf-mx1.sourceforge.net with esmtp (TLSv1:DES-CBC3-SHA:168) (Exim 4.22) id 1A3OZ5-0004Kl-G5 for user-mode-linux-devel@lists.sourceforge.net; Sat, 27 Sep 2003 16:33:27 -0700 Subject: Re: [uml-devel] Separate COW patch. In-reply-to: Your message of "Fri, 26 Sep 2003 18:45:26 EDT." <2D4B6CD74137D4119A1100104BC6BCBF0BC585FC@dubntex006.qwest.net> Mime-Version: 1.0 (generated by tm-edit 1.8) Content-Type: text/plain; charset=US-ASCII Message-ID: <20563.1064703405@marajade.sandelman.ottawa.on.ca> From: Michael Richardson 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: Sat, 27 Sep 2003 18:56:45 -0400 To: "Montgomery, Kendal L" Cc: user-mode-linux-devel@lists.sourceforge.net -----BEGIN PGP SIGNED MESSAGE----- If you are going to spend time on this, go look at the "union" file system type available in BSDs and the "Translucent" in Solaris. I think that some people have tried to do this before... usually, it is a variation of the "null" mount. It permits one to layer one filesystem on top of another file system, and have all modifications go to the upper one. This is done on a *per-file* basis, not on a block file system. COW is about blocks, not files. This may be more appropriate for your use, or it might not be. ] Train travel features AC outlets with no take-off restrictions| firewalls [ ] Michael Richardson, Sandelman Software Works, Ottawa, ON |net architect[ ] mcr@sandelman.ottawa.on.ca http://www.sandelman.ottawa.on.ca/ |device driver[ ] panic("Just another Debian/notebook using, kernel hacking, security guy"); [ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) Comment: Finger me for keys - custom hacks make this fully PGP2 compat iQCVAwUBP3YVoYqHRg3pndX9AQEWjQP9ESUVMOeyR/KSlWf5h2Wj5e8yJal5lGKJ RoW26/KmvTZXmNaHr2lpf9aM9rJWgvLPZp6c20DKgKVSkWEN+at8egZLi5N5ksUc Nh5dzG++IidzlqxxAMxpL0TxSseuzQjEzUOGCmc+/qpjAIoS6XDs8BoraEfkYkcg /F/EJAQvFpk= =tPN1 -----END PGP SIGNATURE----- ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel