From owner-freebsd-geom@FreeBSD.ORG Mon Aug 28 17:29:35 2006 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E7B7016A4DA for ; Mon, 28 Aug 2006 17:29:35 +0000 (UTC) (envelope-from xi@borderworlds.dk) Received: from ferengi.borderworlds.dk (ferengi.borderworlds.dk [80.166.152.7]) by mx1.FreeBSD.org (Postfix) with ESMTP id B6F4C43D4C for ; Mon, 28 Aug 2006 17:29:34 +0000 (GMT) (envelope-from xi@borderworlds.dk) Received: from dominion.borderworlds.dk (dominion.borderworlds.dk [10.1.0.10]) by ferengi.borderworlds.dk (Postfix) with ESMTP id DE266B972 for ; Mon, 28 Aug 2006 19:29:32 +0200 (CEST) Received: by dominion.borderworlds.dk (Postfix, from userid 2000) id AE94A8C8; Mon, 28 Aug 2006 19:29:32 +0200 (CEST) To: freebsd-geom@freebsd.org References: From: Christian Laursen Date: Mon, 28 Aug 2006 19:29:32 +0200 In-Reply-To: (Ivan Voras's message of "Mon, 28 Aug 2006 18:48:12 +0200") Message-ID: User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: Re: Geom class project idea - geom_cow X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Aug 2006 17:29:36 -0000 Ivan Voras writes: > Christian Laursen wrote: >> I have an idea for a geom class that I think could be useful in a number >> of scenarios. >> >> The basic idea is that it takes two existing providers and uses the first >> one as a starting point and the other one to keep changes to the first >> one using copy-on-write. > > It's been discussed, and it's even on my tentative todo list (though I > can't even say when I'll have the time&resources to start...). It's even > done by my "old" gjournal project, but that aspect of it is undertested > and probably buggy. I was not aware of that. I guess I'll have to take a look at Pawels gjournal and see if the functionality is still there. -- Christian Laursen