netns: move net->ipv4.rt_genid to net->rt_genid

This commit prepares the use of rt_genid by both IPv4 and IPv6.
Initialization is left in IPv4 part.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index ae1cd6c..fd87963 100644 (file)
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -102,6 +102,7 @@ struct net {
 #endif
        struct netns_ipvs       *ipvs;
        struct sock             *diag_nlsk;
+       atomic_t                rt_genid;
 };
 
 
@@ -300,5 +301,14 @@ static inline void unregister_net_sysctl_table(struct ctl_table_header *header)
 }
 #endif
 
+static inline int rt_genid(struct net *net)
+{
+       return atomic_read(&net->rt_genid);
+}
+
+static inline void rt_genid_bump(struct net *net)
+{
+       atomic_inc(&net->rt_genid);
+}
 
 #endif /* __NET_NET_NAMESPACE_H */

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 1474dd6..eb24dbc 100644 (file)
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -65,7 +65,6 @@ struct netns_ipv4 {
        unsigned int sysctl_ping_group_range[2];
        long sysctl_tcp_mem[3];
 
-       atomic_t rt_genid;
        atomic_t dev_addr_genid;
 
 #ifdef CONFIG_IP_MROUTE

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index be27cfa..fd9af60 100644 (file)
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -202,11 +202,6 @@ EXPORT_SYMBOL(ip_tos2prio);
 static DEFINE_PER_CPU(struct rt_cache_stat, rt_cache_stat);
 #define RT_CACHE_STAT_INC(field) __this_cpu_inc(rt_cache_stat.field)
 
-static inline int rt_genid(struct net *net)
-{
-       return atomic_read(&net->ipv4.rt_genid);
-}
-
 #ifdef CONFIG_PROC_FS
 static void *rt_cache_seq_start(struct seq_file *seq, loff_t *pos)
 {
@@ -449,7 +444,7 @@ static inline bool rt_is_expired(const struct rtable *rth)
 
 void rt_cache_flush(struct net *net)
 {
-       atomic_inc(&net->ipv4.rt_genid);
+       rt_genid_bump(net);
 }
 
 static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst,
@@ -2506,7 +2501,7 @@ static __net_initdata struct pernet_operations sysctl_route_ops = {
 
 static __net_init int rt_genid_init(struct net *net)
 {
-       atomic_set(&net->ipv4.rt_genid, 0);
+       atomic_set(&net->rt_genid, 0);
        get_random_bytes(&net->ipv4.dev_addr_genid,
                         sizeof(net->ipv4.dev_addr_genid));
        return 0;