[PATCH] Open Firmware device tree virtual filesystem

[Mitch Bradley]

> We could of course have the interface work either on a copy of the tree
> or on a real OF (though that means changing things like get_property on
> powerpc and fixing the gazillions of users) but I tend to think that
> working on a copy always is more efficient.
>
>   
The patch that I posted creates a copy in the virtual filesystem 
domain.  So the efficiency issue is moot.

The filesystem domain copy is smaller than the in-memory tree, as it 
omits a lot of unnecessary fields.