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Date: Mon, 28 Oct 2002 15:01:23 +0000
From: Christoph Hellwig <hch@infradead.org>
To: Rob Landley <landley@trommello.org>
Cc: Kenneth Johansson <ken@kenjo.org>, Jeff Garzik <jgarzik@pobox.com>,
       Andreas Haumer <andreas@xss.co.at>, linux-kernel@vger.kernel.org,
       willy@w.ods.org
Subject: Re: rootfs exposure in /proc/mounts
Message-ID: <20021028150122.A16200@infradead.org>
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	Rob Landley <landley@trommello.org>,
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	Andreas Haumer <andreas@xss.co.at>, linux-kernel@vger.kernel.org,
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References: <Pine.GSO.4.21.0210261458460.29768-100000@steklov.math.psu.edu> <1035763409.4176.5.camel@tiger> <20021028001831.A31614@infradead.org> <200210271917.32650.landley@trommello.org>
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> > > On Sun, 2002-10-27 at 16:09, Christoph Hellwig wrote:
> > clone(..., CLONE_NEWNS, ...)
> >
> > After that subsequent namespace operations will only affect your process
> > and it's child processes.
> 
> Cool.
> 
> Question: if those processes mount something and then exit, does that 
> something get unmounted automatically or is this a mount point leak?

Both namespaces and vfsmounts are refcounted and garbage-collected
if their useage counts hits zero, so there will be no leak.
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