Is the notion of 'exporting' NFS-specific still?  While I'm not aware
of another NFS-like protocol in wide use (afs and coda don't serve
local filesystems), it seems the notion of controlling what parts of
the filesystem tree can be served over NFS-like protocols is more
general than just NFS.  Then, one would perhaps want to control
exports separately for separate protocols.

That said, I don't object to what you are doing now, which seems
orthogonal to the multiprotocol export issue.

-- 
        Greg Troxel <gdt@ir.bbn.com>