mutex_lock(&lov->lov_lock);
/* ok to dec to 0 more than once -- ltd_exp's will be null */
if (atomic_dec_and_test(&lov->lov_refcount) && lov->lov_death_row) {
mutex_lock(&lov->lov_lock);
/* ok to dec to 0 more than once -- ltd_exp's will be null */
if (atomic_dec_and_test(&lov->lov_refcount) && lov->lov_death_row) {