From: Pavel Emelyanov <xemul@openvz.org>
Date: Tue, 04 Dec 2007 13:19:12 +0300

> The only difference in this case is that updating all.forwarding
> causes the update in default.forwarding when done via proc, but
> not via the system call.
> 
> Besides, this consolidates a good portion of code.
> 
> Signed-off-by: Pavel Emelyanov <xemul@openvz.org>

This is another case where I think we should do what
the procfs case was doing, because that's what people
expect at this point.

That seems to be what your patch is doing, so I'll
apply this, thanks.