From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [RCF] [PATCH] unprivileged mount/umount
Date: Wed, 11 May 2005 09:53:01 +0100
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References: <E1DSyQx-0002ku-00@dorka.pomaz.szeredi.hu> <20050504134717.GD3562@admingilde.org>
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On Wed, May 04, 2005 at 03:47:17PM +0200, Martin Waitz wrote:
> hoi :)
> 
> On Tue, May 03, 2005 at 04:31:35PM +0200, Miklos Szeredi wrote:
> > This (lightly tested) patch against 2.6.12-rc* adds some
> > infrastructure and basic functionality for unprivileged mount/umount
> > system calls.
> 
> most of this unprivileged mount policy can be handled by a suid
> userspace helper (e.g. pmount)

Not sanely.  It's what started this whole threads. see the threads about
fuse and the nasty cifs ioctl.