perfuse_node_open
error = perfuse_node_open(pu, (puffs_cookie_t)pn,
if ((error = perfuse_node_open(pu, opc, FREAD, pcr)) != 0)
if ((error = perfuse_node_open(pu, opc, FREAD, pcr)) != 0)
int perfuse_node_open(struct puffs_usermount *,