NFSD4_COURTESY
if (!clnt || clp->cl_state == NFSD4_COURTESY) {
if (clp->cl_state == NFSD4_COURTESY)
clp->cl_state = NFSD4_COURTESY;
cmpxchg(&clp->cl_state, NFSD4_COURTESY, NFSD4_EXPIRABLE);