From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756732AbZHROPV (ORCPT ); Tue, 18 Aug 2009 10:15:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753847AbZHROPU (ORCPT ); Tue, 18 Aug 2009 10:15:20 -0400 Received: from mx2.redhat.com ([66.187.237.31]:37626 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751149AbZHROPS (ORCPT ); Tue, 18 Aug 2009 10:15:18 -0400 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <20090814133225.GB27905@us.ibm.com> References: <20090814133225.GB27905@us.ibm.com> <2359eed20908132115t2f6cea3by2429d54914d5ac6f@mail.gmail.com> To: "Serge E. Hallyn" Cc: dhowells@redhat.com, Will Drewry , linux-kernel@vger.kernel.org, James Morris , linux-security-module@vger.kernel.org, morgan@kernel.org Subject: Re: [RFC][PATCH 1/1] support optional non-VFS capability inheritance without disabling file caps Date: Tue, 18 Aug 2009 15:07:12 +0100 Message-ID: <27938.1250604432@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Serge E. Hallyn wrote: > Heck, maybe we can use the fscache or a stackable fs to provide a view > of a non-xattr fs with xattrs layered on top. David Howells, does > that sound doable or would that be an abuse? You could use fscache, but you would have to deal with the cache not being available or suddenly going away. Note that fscache does not stack on top of another fs in Linux in the way it does in Solaris - the non-xattr fs would have to actively talk to fscache. But it's certainly possible. David