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From: Rob Landley <landley@trommello.org>
Reply-To: landley@trommello.org
To: Christoph Hellwig <hch@infradead.org>, Kenneth Johansson <ken@kenjo.org>
Subject: Re: rootfs exposure in /proc/mounts
Date: Sun, 27 Oct 2002 20:17:32 -0500
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Cc: Jeff Garzik <jgarzik@pobox.com>, Andreas Haumer <andreas@xss.co.at>,
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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>
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On Sunday 27 October 2002 18:18, Christoph Hellwig wrote:
> On Mon, Oct 28, 2002 at 01:03:28AM +0100, Kenneth Johansson wrote:
> > On Sun, 2002-10-27 at 16:09, Christoph Hellwig wrote:
> > > you might have very different mounts in different processes.
> >
> > You can ?? apart from chroot that can make things interesting  how do
> > you do this?
>
> 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?

Rob

-- 
http://penguicon.sf.net - Terry Pratchett, Eric Raymond, Pete Abrams, Illiad, 
CmdrTaco, liquid nitrogen ice cream, and caffienated jello.  Well why not?
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