linux-kernel - Re: [PATCH v18 00/22] Richacls (Core and Ext4)

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Date:	Tue, 15 Mar 2016 08:45:14 -0700
From:	Jeremy Allison <jra@...ba.org>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Andreas Gruenbacher <agruenba@...hat.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	Linux NFS Mailing List <linux-nfs@...r.kernel.org>,
	Theodore Ts'o <tytso@....edu>, linux-cifs@...r.kernel.org,
	Linux API <linux-api@...r.kernel.org>,
	Trond Myklebust <trond.myklebust@...marydata.com>,
	LKML <linux-kernel@...r.kernel.org>,
	XFS Developers <xfs@....sgi.com>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Jeff Layton <jlayton@...chiereds.net>,
	linux-ext4 <linux-ext4@...r.kernel.org>,
	Anna Schumaker <anna.schumaker@...app.com>
Subject: Re: [PATCH v18 00/22] Richacls (Core and Ext4)

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 :-).