taglinefilesource code
keepopen633net/inet/af_inet.csk->keepopen = 0;
keepopen184net/inet/sock.csk->keepopen = 1;
keepopen186net/inet/sock.csk->keepopen = 0;
keepopen267net/inet/sock.cval = sk->keepopen;
keepopen85net/inet/sock.hkeepopen,
keepopen1387net/inet/tcp.cif(sk->keepopen) {
keepopen1506net/inet/tcp.cif (sk->keepopen) 
keepopen2953net/inet/tcp.csk->keepopen = 1;
keepopen3160net/inet/tcp.cif (sk->keepopen) 
keepopen3535net/inet/tcp.c} else if (sk->keepopen) {