taglinefilesource code
TCP_CLOSING781net/ipv4/af_inet.ccase TCP_CLOSING:
TCP_CLOSING898net/ipv4/tcp.cif (sk->state == TCP_FIN_WAIT1 || sk->state == TCP_FIN_WAIT2 || sk->state == TCP_CLOSING ) 
TCP_CLOSING2467net/ipv4/tcp.ccase TCP_CLOSING:
TCP_CLOSING2624net/ipv4/tcp.csk->state == TCP_CLOSING ||
TCP_CLOSING3812net/ipv4/tcp.cif (sk->state == TCP_CLOSING) 
TCP_CLOSING3930net/ipv4/tcp.ccase TCP_CLOSING:
TCP_CLOSING3958net/ipv4/tcp.ctcp_set_state(sk,TCP_CLOSING);
TCP_CLOSING5123net/ipv4/tcp.csk->state != TCP_CLOSING