taglinefilesource code
rt_use32include/linux/route.hunsigned long  rt_use;
rt_use38include/net/route.hunsigned long    rt_use;
rt_use2229net/ipv4/ip.crt->rt_use--;
rt_use2281net/ipv4/ip.crt->rt_use--;
rt_use576net/ipv4/route.cr->rt_flags, r->rt_refcnt, r->rt_use, r->rt_metric,
rt_use637net/ipv4/route.crt->rt_use++;
rt_use673net/ipv4/route.crt->rt_use++;