taglinefilesource code
TCP_LAST_ACK746net/inet/af_inet.cwhile(sk->state < TCP_LAST_ACK && sk->state!= TCP_FIN_WAIT2 &&
TCP_LAST_ACK1850net/inet/tcp.csk->state == TCP_LAST_ACK ||
TCP_LAST_ACK1909net/inet/tcp.ctcp_set_state(sk,TCP_LAST_ACK);
TCP_LAST_ACK1956net/inet/tcp.ctcp_set_state(sk,TCP_LAST_ACK);
TCP_LAST_ACK2514net/inet/tcp.ccase TCP_LAST_ACK:
TCP_LAST_ACK2635net/inet/tcp.ctcp_set_state(sk,TCP_LAST_ACK);
TCP_LAST_ACK3116net/inet/tcp.cif (sk->state == TCP_LAST_ACK) 
TCP_LAST_ACK3319net/inet/tcp.ctcp_set_state(sk,TCP_LAST_ACK);
TCP_LAST_ACK4446net/inet/tcp.csk->state != TCP_LAST_ACK &&