Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757909AbbKSHri (ORCPT ); Thu, 19 Nov 2015 02:47:38 -0500 Received: from tundra.namei.org ([65.99.196.166]:50023 "EHLO namei.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757824AbbKSHrf (ORCPT ); Thu, 19 Nov 2015 02:47:35 -0500 Date: Thu, 19 Nov 2015 18:47:00 +1100 (AEDT) From: James Morris To: Richard Weinberger cc: Al Viro , Seth Forshee , Austin S Hemmelgarn , "Eric W. Biederman" , linux-bcache@vger.kernel.org, device-mapper development , "linux-raid@vger.kernel.org" , "linux-mtd@lists.infradead.org" , linux-fsdevel , LSM , selinux@tycho.nsa.gov, Serge Hallyn , Andy Lutomirski , LKML , "Theodore Ts'o" Subject: Re: [PATCH v3 0/7] User namespace mount updates In-Reply-To: Message-ID: References: <20151117172551.GA108807@ubuntu-hedt> <20151117175506.GW22011@ZenIV.linux.org.uk> <564B79B1.3040207@gmail.com> <20151117191606.GC108807@ubuntu-hedt> <564B941A.2070601@gmail.com> <20151117213255.GE108807@ubuntu-hedt> <564C6DD4.6090308@gmail.com> <20151118142238.GB134139@ubuntu-hedt> <20151118145818.GC22011@ZenIV.linux.org.uk> <20151118150512.GE134139@ubuntu-hedt> <20151118151335.GD22011@ZenIV.linux.org.uk> User-Agent: Alpine 2.20 (LRH 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1047 Lines: 28 On Wed, 18 Nov 2015, Richard Weinberger wrote: > On Wed, Nov 18, 2015 at 4:13 PM, Al Viro wrote: > > On Wed, Nov 18, 2015 at 09:05:12AM -0600, Seth Forshee wrote: > > > >> Yes, the host admin. I'm not talking about trusting the admin inside the > >> container at all. > > > > Then why not have the same host admin just plain mount it when setting the > > container up and be done with that? From the host namespace, before spawning > > the docker instance or whatever framework you are using. IDGI... > > Because hosting companies sell containers as "full virtual machines" > and customers expect to be able mount stuff like disk images they upload. I don't think this is a valid reason for merging functionality into the kernel. -- James Morris -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/