From owner-freebsd-arch@FreeBSD.ORG Fri Nov 7 11:05:08 2008 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 41D7C106564A for ; Fri, 7 Nov 2008 11:05:08 +0000 (UTC) (envelope-from freebsd-arch@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id B78B88FC0C for ; Fri, 7 Nov 2008 11:05:07 +0000 (UTC) (envelope-from freebsd-arch@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1KyOqa-0001fW-P1 for freebsd-arch@freebsd.org; Fri, 07 Nov 2008 10:45:49 +0000 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 07 Nov 2008 10:45:48 +0000 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 07 Nov 2008 10:45:48 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-arch@freebsd.org From: Ivan Voras Date: Fri, 07 Nov 2008 11:44:27 +0100 Lines: 44 Message-ID: References: <20081027193545.GA95872@pin.if.uz.zgora.pl> <20081028161855.GA45129@zim.MIT.EDU> <20081106192829.GA98742@pin.if.uz.zgora.pl> <20081106195558.GG2281@submonkey.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig29C47C12AA531272E280C275" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Thunderbird 2.0.0.17 (X11/20080925) In-Reply-To: <20081106195558.GG2281@submonkey.net> X-Enigmail-Version: 0.95.0 Sender: news Subject: Re: Directory rename semantics. X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Nov 2008 11:05:08 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig29C47C12AA531272E280C275 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Ceri Davies wrote: > On Thu, Nov 06, 2008 at 08:28:29PM +0100, Edward Tomasz Napierala wrote= : >> After discussion about this with rwatson and pjd, I decided to do >> the opposite: change ZFS behaviour to match UFS. Reason is simple: >> this is security, and we want to be conservative here. It's impossibl= e >> to make sure this change wouldn't cause security problems. >=20 > Perhaps it would have been better to either do nothing or create a zfs > property that toggled this behaviour so that people who expect ZFS to > behave a certain way get it. I'm not sure why we would want all > filesystems to behave the same way, to be honest. That would be desirable if we want file system semantics to be a property of the OS instead of individual file systems. (Though I don't know if there's ever been a conscious decision about this particular goal). If so, a knob that toggles between the behaviours should toggle it for all file systems. Having them behave differently can create problems in migration to and from ZFS. --------------enig29C47C12AA531272E280C275 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFJFBxXldnAQVacBcgRApmAAJ9BiNfkOqtTLi7QvKpkOlqnRAjK6ACghKZH H3O7sJEjfNmLY5xFLypdY7s= =JlPJ -----END PGP SIGNATURE----- --------------enig29C47C12AA531272E280C275--