On Mon, Apr 25, 2005 at 08:07:34PM +0100, Jamie Lokier wrote:
> Pavel Machek wrote:
> > > > ... is the same as for the same question with "set of mounts" replaced
> > > > with "environment variables".
> > >
> > > Not quite.
> > >
> > > After changing environment variables in .profile, you can copy them to
> > > other shells using ". ~/.profile".
> > >
> > > There is no analogous mechanism to copy namespaces.
> >
> > Actually, after you add right mount xyzzy /foo lines into .profile,
> > you can just . ~/.profile ;-).
>
> Is there a mount command that can do that? We're talking about
> private mounts - invisible to other namespaces, which includes the
> other shells.
>
> If there was a /proc/NNN/namespace, that would do the trick :)
I don't think you need a /proc/NNN/namespace, /proc/NNN/mounts already
contains a mount table. It's pretty trivial to write a small shellscript
to parse that, compare with the current namespace and do all mount/umounts
to make them fit the other processes namespace. Real problem here are
filesystems that don't implement ->show_options or do so only partially
so that some options are lost.
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