+ if (m->_m_type >= 4) {
+ self->robust_list.pending = &m->_m_next;
+ *(void **)m->_m_prev = m->_m_next;
+ if (m->_m_next) ((void **)m->_m_next)[-1] = m->_m_prev;
+ a_store(&m->_m_lock, 0);
+ self->robust_list.pending = 0;
+ } else {
+ a_store(&m->_m_lock, 0);
+ }
+ } else {
+ a_store(&m->_m_lock, 0);