dlm_hash2nodeid
r->res_dir_nodeid = dlm_hash2nodeid(ls, r->res_hash);
int dlm_hash2nodeid(struct dlm_ls *ls, uint32_t hash);
dir_nodeid = dlm_hash2nodeid(ls, hash);
dir_nodeid = dlm_hash2nodeid(ls, hash);
dir_nodeid = dlm_hash2nodeid(ls, le32_to_cpu(ms->m_hash));