@@ -135,6 +135,9 @@ struct netns_ipv4 {
#ifdef CONFIG_IP_ROUTE_MULTIPATH
int sysctl_fib_multipath_use_neigh;
#endif
+
+ unsigned int fib_seq; /* protected by rtnl_mutex */
+
atomic_t rt_genid;
};
#endif
@@ -1219,6 +1219,8 @@ static int __net_init ip_fib_net_init(struct net *net)
int err;
size_t size = sizeof(struct hlist_head) * FIB_TABLE_HASHSZ;
+ net->ipv4.fib_seq = 0;
+
/* Avoid false sharing : Use at least a full cache line */
size = max_t(size_t, size, L1_CACHE_BYTES);
@@ -101,6 +101,7 @@ EXPORT_SYMBOL(unregister_fib_notifier);
int call_fib_notifiers(struct net *net, enum fib_event_type event_type,
struct fib_notifier_info *info)
{
+ net->ipv4.fib_seq++;
info->net = net;
return atomic_notifier_call_chain(&fib_chain, event_type, info);
}