tree f950b29615be254fb7f90a607caf3f307518a34b
parent 8534d4ec055d854be6c94e8e5654fa87678ea5f7
author Trond Myklebust <Trond.Myklebust@netapp.com> 1314212857 -0400
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1314212857 -0400

NFSv4: The NFSv4.0 client must send RENEW calls if it holds a delegation

RFC3530 states that if the client holds a delegation, then it is obliged
to continue to send RENEW calls once every lease period in order to allow
the server to return NFS4ERR_CB_PATH_DOWN if the callback path is
unreachable.

This is not required for NFSv4.1, since the server can at any time set
the SEQ4_STATUS_CB_PATH_DOWN_SESSION in any SEQUENCE operation.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>