taglinefilesource code
rt_mss48include/linux/route.hunsigned long  rt_mss;    /* per route MTU/Window */
rt_mss67include/linux/route.h#define rt_mtu    rt_mss    
rt_mss272net/inet/route.crt->rt_mss = dev->mtu - HEADER_SIZE;
rt_mss278net/inet/route.crt->rt_mss = mtu;
rt_mss458net/inet/route.cip_rt_add(flags, daddr, mask, gw, dev, r->rt_mss, r->rt_window);
rt_mss502net/inet/route.cr->rt_mask, (int)r->rt_mss, r->rt_window);
rt_mss39net/inet/route.hunsigned short    rt_mss;
rt_mss2088net/inet/tcp.cnewsk->mtu = rt->rt_mss - HEADER_SIZE;
rt_mss3669net/inet/tcp.csk->mtu = rt->rt_mss;