Date: Fri, 13 Aug 2010 21:06:28 +0200 (CEST)
From: Jan Engelhardt <jengelh@medozas.de>
To: Jeremy Allison <jra@samba.org>
cc: "J. Bruce Fields" <bfields@fieldses.org>, Jeff Layton <jlayton@redhat.com>,
        Neil Brown <neilb@suse.de>, utz lehmann <lkml123@s2y4n2c.de>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Volker.Lendecke@sernet.de, David Howells <dhowells@redhat.com>,
        linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org,
        samba-technical@lists.samba.org, linux-kernel@vger.kernel.org,
        viro@zeniv.linux.org.uk, linux-fsde@jasper.es
Subject: Re: [PATCH 02/18] xstat: Add a pair of system calls to make extended
  file stats available [ver #6]
In-Reply-To: <20100813175410.GA8202@samba1>
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On Friday 2010-08-13 19:54, Jeremy Allison wrote:
>On Fri, Aug 13, 2010 at 08:54:32AM -0400, J. Bruce Fields wrote:
>> On Sun, Aug 08, 2010 at 06:05:01AM -0700, Jeremy Allison wrote:
>> > We don't need to ape Windows in everything.
>> > The coming ACL disaster will show that (we will go from an ACL
>> > model that is slightly too complex to use, to one that is impossibly
>> > complex to use :-).
>> 
>> Care to elaborate?
>
>POSIX ACLs -> RichACLs (NT-style). Not criticising Andreas here,
>people are asking for this. But Windows ACLs are a nightmare
>beyond human comprehension :-). In the "too complex to be
>usable" camp.

Well, for one, ACLs in NT can be recursive IIRC. You can't say that of Linux
ACLs - instead you have to setfacl -R and setfacl -Rd to give one user access
to a directory and all its subdirs including future new inodes.