RFC: don't allow any access to unexported mounts for NFSv4

Rick Macklem rmacklem at uoguelph.ca
Fri Jun 17 15:41:27 UTC 2011

> The workarounds you propose contradict everything people are used to.
> They are not easy or you need to care what you put in the parent
> directories of the one you want to export. It basically means that you
> can only use NFSv4 on newly setup systems, upgraded or migrated ones
> look out of the question (yes, I'm over-simplificating a bit).
> I really hope someone can come up with a fix for this, else it would
> mean I would not use NFSv4 anywhere.
Ok, can I assume that's a vote for "leave the hack in"?

Beyond that, all I can say is the NFSv4 model (and protocol) is very
different (one tree rooted at some point). Conversion may or may not be
worth the pain, in any individual case.


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