linux-kernel - Re: [ckrm-tech] [PATCH 7/7] containers (V7): Container interface to nsproxy subsystem

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Message-ID: <20070402142727.GF2456@in.ibm.com>
Date:	Mon, 2 Apr 2007 19:57:27 +0530
From:	Srivatsa Vaddagiri <vatsa@...ibm.com>
To:	"Serge E. Hallyn" <serue@...ibm.com>
Cc:	menage@...gle.com, akpm@...l.org, pj@....com, sekharan@...ibm.com,
	dev@...ru, xemul@...ru, ebiederm@...ssion.com,
	ckrm-tech@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	containers@...ts.osdl.org, mbligh@...gle.com, winget@...gle.com,
	rohitseth@...gle.com, devel@...nvz.org
Subject: Re: [ckrm-tech] [PATCH 7/7] containers (V7): Container interface to nsproxy subsystem

On Mon, Apr 02, 2007 at 09:09:39AM -0500, Serge E. Hallyn wrote:
> Losing the directory isn't a big deal though.  And both unsharing a
> namespace (which causes a ns_container_clone) and mounting the hierarchy
> are done by userspace, so if for some installation it is a big deal,
> the init scripts on initrd can mount the hierarchy before doing any
> unsharing.

Yes I thought of that after posting this (that initrd can mount the
hierarchies), so this should not be an issue in practice ..

> Can you think of a reason why losing a few directories matters?

If we loose directories, then we don't have a way to manage the
task-group it represents thr' the filesystem interface, so I consider
that bad. As we agree, this will not be an issue if initrd
mounts the ns hierarchy atleast at bootup.

-- 
Regards,
vatsa
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