From: Jeremy Allison <jra-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
Subject: Re: [PATCH v18 00/22] Richacls (Core and Ext4)
Date: Tue, 15 Mar 2016 08:45:14 -0700
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Cc: Andreas Gruenbacher <agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Alexander Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>,
	"J. Bruce Fields" <bfields-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>,
	Linux NFS Mailing List <linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Theodore Ts'o <tytso-3s7WtUTddSA@public.gmane.org>, linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Linux API <linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Trond Myklebust <trond.myklebust-7I+n7zu2hftEKMMhf/gKZA@public.gmane.org>,
	LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
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	Andreas Dilger <adilger.kernel-m1MBpc4rdrD3fQ9qLvQP4Q@public.gmane.org>,
	linux-fsdevel <linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Jeff Layton <jlayton-vpEMnDpepFuMZCB2o+C8xQ@public.gmane.org>,
	linux-ext4 <linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Anna Schumaker <anna.schumaker-HgOvQuBEEgTQT0dZR+AlfA@public.gmane.org>
To: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
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On Tue, Mar 15, 2016 at 12:11:03AM -0700, Christoph Hellwig wrote:
> On Fri, Mar 11, 2016 at 05:11:51PM +0100, Andreas Gruenbacher wrote:
> > > while breaking a lot of assumptions,
> > 
> > The model is designed specifically to be compliant with the POSIX
> > permission model. What assumptions are you talking about?
> 
> People have long learned that we only have 'alloc' permissions.  Any
> model that mixes allow and deny ACE is a mistake.

People can also learn and change though :-). One of the
biggest complaints people deploying Samba on Linux have is the
incompatible ACL models.

Whilst I have sympathy with your intense dislike of the
Windows ACL model, this comes down to the core of "who
do we serve ?" IMHO we should serve the users (although
I must confess I'd look awful in a TRON suit :-).