linux-kernel - Re: [PATCH 02/18] xstat: Add a pair of system calls to make extended file stats available [ver #6]

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Message-ID: <20100813191900.GB8202@samba1>
Date:	Fri, 13 Aug 2010 12:19:00 -0700
From:	Jeremy Allison <jra@...ba.org>
To:	Jan Engelhardt <jengelh@...ozas.de>
Cc:	Jeremy Allison <jra@...ba.org>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	Jeff Layton <jlayton@...hat.com>, Neil Brown <neilb@...e.de>,
	utz lehmann <lkml123@...4n2c.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Volker.Lendecke@...net.de, David Howells <dhowells@...hat.com>,
	linux-cifs@...r.kernel.org, linux-nfs@...r.kernel.org,
	samba-technical@...ts.samba.org, linux-kernel@...r.kernel.org,
	viro@...iv.linux.org.uk, linux-fsde@...per.es
Subject: Re: [PATCH 02/18] xstat: Add a pair of system calls to make
 extended file stats available [ver #6]

On Fri, Aug 13, 2010 at 09:06:28PM +0200, Jan Engelhardt wrote:
> 
> 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.

You do realize that Windows does exactly the same thing under
the covers, right ? Watch SMB or SMB2 traffic between a client
and Windows server when someone changes an ACL sometime :-).

Jeremy
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