Quoting Jason Thorpe <thorpej@shagadelic.org>:

> FWIW, I would like to have a vn_getpath() type function in the NetBSD 
>  kernel.  It should not be that difficult to add for file systems 
> that  participate in the namei cache.

What, exactly, would you use this for?  Path->vnode bindings are ephemeral and
cannot be relied on for much without introducing security holes.

(This is also why I added futimes() and converted many things to use
fchown()/fchmod()/futimes() years ago...)