nfsd4_locku
.op_func = nfsd4_locku,
struct nfsd4_locku *locku = &u->locku;
struct nfsd4_locku *locku = &u->locku;
struct nfsd4_locku *locku = &u->locku;
extern __be32 nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
struct nfsd4_locku locku;