[PATCH] root-hopping for pre-2.3.41-3

[Werner Almesberger]

Linus Torvalds wrote:
> I don't think device numbers are all that helpful. And in fact I think
> that if it shows any of the "unattached" filesystems at all, it's probably
> a bug in the first place - after the root hop, the old root should not
> show up.

d_path has the same problem after a normal chroot. I agree that not showing
unreachable mount points is cleaner, but it greatly reduces the utility of
/proc/mounts as an indicator for which file systems the kernel is using.

Well, I'll take it out then and make a separate patch that adds
/proc/mount-devs which tells us the whole truth. Probably quite wasteful,
considering that nobody but fuser seems to use the current /proc/mounts
anyway.

> but I don't agree with overloading an
> existing call that does something completely different.

Sigh, a new system call then :-(

- Werner

-- 
  _________________________________________________________________________
 / Werner Almesberger, ICA, EPFL, CH       werner.almesberger en ica.epfl.ch /
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