taglinefilesource code
rt_mtu135include/net/route.hunsigned short    rt_mtu;
rt_mtu923net/ipv4/route.c(unsigned long)r->rt_src, (int)r->rt_mtu, r->rt_window, (int)r->rt_irtt, r->rt_hh ? r->rt_hh->hh_refcnt : -1, r->rt_hh ? r->rt_hh->hh_uptodate : 0);
rt_mtu1121net/ipv4/route.crt->rt_mtu = dev->mtu;
rt_mtu1124net/ipv4/route.crt->rt_mtu = 576;
rt_mtu1530net/ipv4/route.crth->rt_mtu  = fi->fib_mtu;
rt_mtu690net/ipv4/tcp.cif (rt && ntohs(iph->tot_len) > rt->rt_mtu)
rt_mtu1101net/ipv4/tcp.cif (rt->rt_mtu > new_mtu)
rt_mtu1102net/ipv4/tcp.crt->rt_mtu = new_mtu;
rt_mtu3096net/ipv4/tcp.cnewsk->mtu = rt->rt_mtu - sizeof(struct iphdr) - sizeof(struct tcphdr);
rt_mtu4632net/ipv4/tcp.csk->mtu = rt->rt_mtu - sizeof(struct iphdr) - sizeof(struct tcphdr);