ipv4_sysctl_ops  1375 net/ipv4/sysctl_net_ipv4.c static __net_initdata struct pernet_operations ipv4_sysctl_ops = {
ipv4_sysctl_ops  1388 net/ipv4/sysctl_net_ipv4.c 	if (register_pernet_subsys(&ipv4_sysctl_ops)) {