op_state_purged
if (unlikely(op_state_purged(op) || op_state_given_up(op))) {
if (op->tag == tag && !op_state_purged(op) &&
if (op_state_purged(op)) {
if (ret == -EAGAIN && op_state_purged(new_op)) {
if (op_state_purged(op)) {