NFSv4.1 offline trunkable transports on DESTROY_SESSION

When session is destroy, some of the transports might no longer be
valid trunks for the new session. Offline existing transports.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

fs/nfs/nfs4proc.c

@@ -9291,6 +9291,7 @@ int nfs4_proc_destroy_session(struct nfs4_session *session,
 	if (status)
 		dprintk("NFS: Got error %d from the server on DESTROY_SESSION. "
 			"Session has been destroyed regardless...\n", status);
+	rpc_clnt_manage_trunked_xprts(session->clp->cl_rpcclient);
 	return status;
 }