From owner-freebsd-current@FreeBSD.ORG  Sat Jan 10 22:56:07 2009
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 29CA81065672;
	Sat, 10 Jan 2009 22:56:07 +0000 (UTC)
	(envelope-from heliocentric@gmail.com)
Received: from rn-out-0910.google.com (rn-out-0910.google.com [64.233.170.188])
	by mx1.freebsd.org (Postfix) with ESMTP id B93328FC18;
	Sat, 10 Jan 2009 22:56:06 +0000 (UTC)
	(envelope-from heliocentric@gmail.com)
Received: by rn-out-0910.google.com with SMTP id j71so6774169rne.12
	for <multiple recipients>; Sat, 10 Jan 2009 14:56:06 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=domainkey-signature:received:received:message-id:date:from:to
	:subject:cc:in-reply-to:mime-version:content-type
	:content-transfer-encoding:content-disposition:references;
	bh=Qi613Rj49aemWFZuPpL47/K25bgPpzaK5qT3X80GVAQ=;
	b=i+Bzv0FhR8XUaaIyBXuFoXL1hX2TRYG1slD+9abitjggB1DEiszncgWMXpSidxFarb
	TN7PPZSrQP4lIZUsdWLbqbyUo5DC9snD+bWMWGHUnVCEiQLM1shesWVb5+X8fStL/GcQ
	JnLvESlEWYeaKfpiiiZB6Ec0uSFSdsmeaWan4=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma;
	h=message-id:date:from:to:subject:cc:in-reply-to:mime-version
	:content-type:content-transfer-encoding:content-disposition
	:references;
	b=QZU7Reog18N94vl/q7AuDTQWsfwwhdholFkvDmzr+Qrkqbvs0GAaEj8sFP39tTExG2
	7EJylHUKxr4MRioQ6pK0C36/LC3crv9MqaKaFiTT76ligcsfgNLJt8ZHPic1ur5dgaiJ
	kuLz0PgejoA5+OCWKOwPEGdVhrucEEGAtgvTU=
Received: by 10.90.102.8 with SMTP id z8mr12885934agb.56.1231628165879;
	Sat, 10 Jan 2009 14:56:05 -0800 (PST)
Received: by 10.90.36.7 with HTTP; Sat, 10 Jan 2009 14:56:05 -0800 (PST)
Message-ID: <bdf82f800901101456x57c1c1ecmba32e6af6f627622@mail.gmail.com>
Date: Sat, 10 Jan 2009 17:56:05 -0500
From: a134qaed@gmail.com
To: "Tim Kientzle" <kientzle@freebsd.org>
In-Reply-To: <4968EF7E.5040002@freebsd.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
References: <4965927D.1060507@freebsd.org>
	<alpine.BSF.2.00.0901091525300.78432@fledge.watson.org>
	<bdf82f800901092341y2459b8bcyd706a6f9aabb47ea@mail.gmail.com>
	<4968EF7E.5040002@freebsd.org>
X-Mailman-Approved-At: Sat, 10 Jan 2009 23:38:26 +0000
Cc: freebsd-current@freebsd.org
Subject: Re: Extattr portability?
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 10 Jan 2009 22:56:07 -0000

On 1/10/09, Tim Kientzle <kientzle@freebsd.org> wrote:
> Dylan Cochran wrote:
>>
>
> Wonderful!  Care to help test?

Absolutely.

>
> There's still a lot of open questions about the system
> namespace I'll have to figure out.  Over on the GNU tar
> mailing list, the Linux filesystem folks have been agitating
> for GNU tar to support system extattrs that carry filesystem
> layout hints.  The portability issues with this make my
> head hurt.

Yea, I think in the end it's going to be inherently un-portable, as in
some systems, the system attributes could be filesystem or kernel
specific. And I can forsee some dangerous reprocussions (a collision
on an attribute name in the system namespace, which on one system is
just a tag, like 'page=23', but on another, it's interpreted as a
flagged hint to the dynamic linker, on how to page in the file.....
>
> Tim
>