From owner-freebsd-geom@FreeBSD.ORG  Tue Feb  6 10:35:32 2007
Return-Path: <owner-freebsd-geom@FreeBSD.ORG>
X-Original-To: freebsd-geom@freebsd.org
Delivered-To: freebsd-geom@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id C933716A400
	for <freebsd-geom@freebsd.org>; Tue,  6 Feb 2007 10:35:32 +0000 (UTC)
	(envelope-from phk@critter.freebsd.dk)
Received: from phk.freebsd.dk (phk.freebsd.dk [130.225.244.222])
	by mx1.freebsd.org (Postfix) with ESMTP id 8E9D913C441
	for <freebsd-geom@freebsd.org>; Tue,  6 Feb 2007 10:35:32 +0000 (UTC)
	(envelope-from phk@critter.freebsd.dk)
Received: from critter.freebsd.dk (critter.freebsd.dk [192.168.48.2])
	by phk.freebsd.dk (Postfix) with ESMTP id 08D781747B;
	Tue,  6 Feb 2007 10:35:30 +0000 (UTC)
Received: from critter.freebsd.dk (localhost [127.0.0.1])
	by critter.freebsd.dk (8.13.8/8.13.8) with ESMTP id l16AZOl8091006;
	Tue, 6 Feb 2007 10:35:24 GMT (envelope-from phk@critter.freebsd.dk)
To: Ivan Voras <ivoras@fer.hr>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 06 Feb 2007 11:32:11 +0100."
	<eq9lfb$5o4$1@sea.gmane.org> 
Date: Tue, 06 Feb 2007 10:35:24 +0000
Message-ID: <91005.1170758124@critter.freebsd.dk>
Sender: phk@critter.freebsd.dk
Cc: freebsd-geom@freebsd.org
Subject: Re: New g_part class 
X-BeenThere: freebsd-geom@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: GEOM-specific discussions and implementations
	<freebsd-geom.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-geom>
List-Post: <mailto:freebsd-geom@freebsd.org>
List-Help: <mailto:freebsd-geom-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 06 Feb 2007 10:35:32 -0000

In message <eq9lfb$5o4$1@sea.gmane.org>, Ivan Voras writes:
>Poul-Henning Kamp wrote:
>
>> Considering the fact that editing can be done equally well in
>> userland, what is the rationale or benefit of putting the code into
>> the kernel, to deal with very infrequent operations to change the
>> disk-layout ?
>
>Hmm, editing partition in userland... isn't there some well known
>problem with editing partitions in userland requiring setting
>kern.geom.debugflags to 16 before continuing? I might be wrong, but I
>think this was one of the problems with geom_gpt?

If the geom classes are implemented correctly, you should never
need to set kern.geom.debugflags.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.