On Wed, Feb 08, 2006 at 06:04:36PM -0700, Eric W. Biederman wrote:
> There are some other similar problems still in /proc.
>
> In my pid namespace work I have some managed to clean most of
> this up, and finally split proc into two filesystems.
>
> The only was I was able to get the union to work was
> to let lookup return files in an internal mount.
>
> The only problem was that /proc/irq/.. != /proc/
That's not the only problem here, unfortunately.
> I will finish all of this up shortly but do you know a good
> way to do a union mount when we mount proc?
Not transparently; mount(2) should _not_ mount two filesystems at once.
Note that you'll run into serious problems as soon as you try to mount/umount/
mount --move the stuff there. And doing unionfs <spit> approach will cause
fsckloads of fun issues with lifetimes.
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