sdev_cleandir
ret = sdev_cleandir(svp, NULL, 0);
(void) sdev_cleandir(dir, expr, SDEV_ENFORCE);
sdev_cleandir(dv, NULL, flags) != 0) {
if ((error = sdev_cleandir(dv, NULL, 0)) != 0) {
error = sdev_cleandir(fromdv, NULL, 0);
(sdev_cleandir(dv, NULL, 0) != 0)) {
extern int sdev_cleandir(struct sdev_node *, char *, uint_t);