Re: stacked NFS mounts

[Mouse <mouse%Rodents-Montreal.ORG@localhost>]

>> I'm going to look at 5.2 to see how hard it looks to have
>> unmount(,MNT_FORCE) do string comparisons in the mount table [...]
> I have a proof-of-concept implementation written in 5.2.  [...]

> There are probably issues with it, since it's a new and relatively
> untested facility, but it may be useful as a starting point.

There is one big one: attempting to unmount a path that isn't mounted
panics.

I've now got that fixed.  If you're looking at commits you probably
want both; if you're fetching the diffs, I'd suggest fetching
.../diff/89a4f0d-8938bc4, instead of the path I gave last mail, to get
the fix.

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