linux-kernel - Re: [PATCH 1/1] containers: implement nsproxy containers subsystem

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Message-ID: <20070605121358.GB22230@sergelap.austin.ibm.com>
Date:	Tue, 5 Jun 2007 07:13:58 -0500
From:	"Serge E. Hallyn" <serue@...ibm.com>
To:	Pavel Emelianov <xemul@...nvz.org>
Cc:	"Serge E. Hallyn" <serue@...ibm.com>, menage@...gle.com,
	Andrew Morton <akpm@...ux-foundation.org>, dev@...ru,
	vatsa@...ibm.com, ebiederm@...ssion.com, svaidy@...ux.vnet.ibm.com,
	balbir@...ibm.com, pj@....com, cpw@....com,
	ckrm-tech@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	containers@...ts.osdl.org, mbligh@...gle.com, rohitseth@...gle.com,
	devel@...nvz.org
Subject: Re: [PATCH 1/1] containers: implement nsproxy containers subsystem

Quoting Pavel Emelianov (xemul@...nvz.org):
> Serge E. Hallyn wrote:
> >>From 190ea72d213393dd1440643b2b87b5b2128dff87 Mon Sep 17 00:00:00 2001
> > From: Serge E. Hallyn <serue@...ibm.com>
> > Date: Mon, 4 Jun 2007 14:18:52 -0400
> > Subject: [PATCH 1/1] containers: implement nsproxy containers subsystem
> > 
> > When a task enters a new namespace via a clone() or unshare(), a new
> > container is created and the task moves into it.  This enables
> 
> I have a design question.
> 
> How the child that has a new namespace guesses what id
> this namespace has in containers?

parse /proc/$$/container

So more likely the parent would have to grab the cloned pid of the
child, parse /proc/$$/container, then rename the container.

-serge
-
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