taglinefilesource code
user_mss157include/net/sock.hvolatile unsigned short  user_mss;  /* mss requested by user in ioctl */
user_mss3091net/ipv4/tcp.cif (sk->user_mss)
user_mss3092net/ipv4/tcp.cnewsk->mtu = sk->user_mss;
user_mss4631net/ipv4/tcp.cif (sk->user_mss)
user_mss4632net/ipv4/tcp.csk->mtu = sk->user_mss;
user_mss5477net/ipv4/tcp.csk->user_mss=val;
user_mss5497net/ipv4/tcp.cval=sk->user_mss;