Re: Union mounts, NFS, and locking

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On Wed, 2009-07-15 at 13:27 -0400, J. Bruce Fields wrote:
[snip]
> The mount options aren't really in the protocol--so it'd probably take
> the form of a filesystem-granularity attribute that the client could
> query (and then fail the mount if the client didn't like the answer).
> 
> But even then: the fact is that someone will want to update the
> filesystem some day.  And there's no way to force every client
> administrator to remount.  So we'd have to decide how to handle that
> case.

So currently this is the case but at the last IETF meeting I proposed a
remount callback to handle the case of a mass file relabel on the
server. I think Beepy wrote it down on the possible 4.2 items. However I
wouldn't expect to see anything related to that for a while and that
assumes that someone picks up the ball and runs with it to begin with. 

Dave

P.S. Note this is NFSv4 we are talking about I don't have a solution for
v2(does anyone even use it any more?) or v3

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