From owner-freebsd-arch@FreeBSD.ORG Fri Nov 7 14:37:36 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 44F84106568C for ; Fri, 7 Nov 2008 14:37:36 +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 BCEEA8FC14 for ; Fri, 7 Nov 2008 14:37:35 +0000 (UTC) (envelope-from freebsd-arch@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1KySSn-0002Q9-Mu for freebsd-arch@freebsd.org; Fri, 07 Nov 2008 14:37:29 +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 14:37:29 +0000 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 07 Nov 2008 14:37:29 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-arch@freebsd.org From: Ivan Voras Date: Fri, 07 Nov 2008 15:37:18 +0100 Lines: 56 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> <20081107123259.GC34757@submonkey.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigED0D2EDD547B049C2EE41C14" 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: <20081107123259.GC34757@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 14:37:36 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigED0D2EDD547B049C2EE41C14 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Ceri Davies wrote: > On Fri, Nov 07, 2008 at 11:44:27AM +0100, Ivan Voras wrote: >> Ceri Davies wrote: >>> On Thu, Nov 06, 2008 at 08:28:29PM +0100, Edward Tomasz Napierala wro= te: >>>> 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 impossi= ble >>>> to make sure this change wouldn't cause security problems. >>> Perhaps it would have been better to either do nothing or create a zf= s >>> 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. >=20 > That's essentially what has just happened, but without the knob. >=20 > I'm not really sure whether you agree with the change that was made or > not. I agree with the aspect of the change that unified the semantics on UFS and ZFS. I hope somebody comes up with a knob that would toggle it for both systems at the same time, if the alternate behaviour is useful to people. --------------enigED0D2EDD547B049C2EE41C14 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 iD8DBQFJFFKeldnAQVacBcgRAjf8AKDZVg5HvQR9ahY54shV+GHJ2oTfLACeKa6H hF5WzvySx+vxDEcxvCsbkaw= =uiOo -----END PGP SIGNATURE----- --------------enigED0D2EDD547B049C2EE41C14--