3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Benjamin Coddington <[email protected]>

commit 173b3afceebe76fa2205b2c8808682d5b541fe3c upstream.

If rpc.statd is restarted, upcalls to monitor hosts can fail with
ECONNREFUSED.  In that case force a lookup of statd's new port and retry the
upcall.

Signed-off-by: Benjamin Coddington <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 fs/lockd/mon.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -159,6 +159,12 @@ static int nsm_mon_unmon(struct nsm_hand
 
        msg.rpc_proc = &clnt->cl_procinfo[proc];
        status = rpc_call_sync(clnt, &msg, RPC_TASK_SOFTCONN);
+       if (status == -ECONNREFUSED) {
+               dprintk("lockd: NSM upcall RPC failed, status=%d, forcing 
rebind\n",
+                               status);
+               rpc_force_rebind(clnt);
+               status = rpc_call_sync(clnt, &msg, RPC_TASK_SOFTCONN);
+       }
        if (status < 0)
                dprintk("lockd: NSM upcall RPC failed, status=%d\n",
                                status);


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