J. Bruce Fields 3bd64a5ba1 nfsd4: implement SEQ4_STATUS_RECALLABLE_STATE_REVOKED ...

A 4.1 server must notify a client that has had any state revoked using
the SEQ4_STATUS_RECALLABLE_STATE_REVOKED flag.  The client can figure
out exactly which state is the problem using CHECK_STATEID and then free
it using FREE_STATEID.  The status flag will be unset once all such
revoked stateids are freed.

Our server's only recallable state is delegations.  So we keep with each
4.1 client a list of delegations that have timed out and been recalled,
but haven't yet been freed by FREE_STATEID.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

2013-04-16 10:59:30 -04:00

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