netns: make uplitev6 mib per/namespace

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/netns/mib.h

@@ -15,6 +15,7 @@ struct netns_mib {
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 	struct proc_dir_entry *proc_net_devsnmp6;
 	DEFINE_SNMP_STAT(struct udp_mib, udp_stats_in6);
+	DEFINE_SNMP_STAT(struct udp_mib, udplite_stats_in6);
 #endif
 };
 

include/net/udp.h

@@ -152,9 +152,6 @@ extern struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
 				    __be32 daddr, __be16 dport,
 				    int dif);
 
-/* UDP-Lite does not have a standardized MIB yet, so we inherit from UDP */
-DECLARE_SNMP_STAT(struct udp_mib, udplite_stats_in6);
-
 /*
  * 	SNMP statistics for UDP and UDP-Lite
  */
@@ -166,12 +163,12 @@ DECLARE_SNMP_STAT(struct udp_mib, udplite_stats_in6);
 	else		SNMP_INC_STATS_BH((net)->mib.udp_statistics, field);    }  while(0)
 
 #define UDP6_INC_STATS_BH(net, field, is_udplite) 	    do { \
-	if (is_udplite) SNMP_INC_STATS_BH(udplite_stats_in6, field);         \
+	if (is_udplite) SNMP_INC_STATS_BH((net)->mib.udplite_stats_in6, field);\
 	else		SNMP_INC_STATS_BH((net)->mib.udp_stats_in6, field);  \
 } while(0)
-#define UDP6_INC_STATS_USER(net, field, is_udplite)	    do { \
-	if (is_udplite) SNMP_INC_STATS_USER(udplite_stats_in6, field);         \
-	else		SNMP_INC_STATS_USER((net)->mib.udp_stats_in6, field);  \
+#define UDP6_INC_STATS_USER(net, field, __lite)		    do { \
+	if (__lite) SNMP_INC_STATS_USER((net)->mib.udplite_stats_in6, field);  \
+	else	    SNMP_INC_STATS_USER((net)->mib.udp_stats_in6, field);      \
 } while(0)
 
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)

net/ipv6/af_inet6.c

@@ -806,13 +806,8 @@ static int __init init_ipv6_mibs(void)
 	if (snmp_mib_init((void **)icmpv6msg_statistics,
 			  sizeof(struct icmpv6msg_mib)) < 0)
 		goto err_icmpmsg_mib;
-	if (snmp_mib_init((void **)udplite_stats_in6,
-			  sizeof (struct udp_mib)) < 0)
-		goto err_udplite_mib;
 	return 0;
 
-err_udplite_mib:
-	snmp_mib_free((void **)icmpv6msg_statistics);
 err_icmpmsg_mib:
 	snmp_mib_free((void **)icmpv6_statistics);
 err_icmp_mib:
@@ -827,7 +822,6 @@ static void cleanup_ipv6_mibs(void)
 	snmp_mib_free((void **)ipv6_statistics);
 	snmp_mib_free((void **)icmpv6_statistics);
 	snmp_mib_free((void **)icmpv6msg_statistics);
-	snmp_mib_free((void **)udplite_stats_in6);
 }
 
 static int __net_init ipv6_init_mibs(struct net *net)
@@ -835,12 +829,20 @@ static int __net_init ipv6_init_mibs(struct net *net)
 	if (snmp_mib_init((void **)net->mib.udp_stats_in6,
 			  sizeof (struct udp_mib)) < 0)
 		return -ENOMEM;
+	if (snmp_mib_init((void **)net->mib.udplite_stats_in6,
+			  sizeof (struct udp_mib)) < 0)
+		goto err_udplite_mib;
 	return 0;
+
+err_udplite_mib:
+	snmp_mib_free((void **)net->mib.udp_stats_in6);
+	return -ENOMEM;
 }
 
 static void __net_exit ipv6_cleanup_mibs(struct net *net)
 {
 	snmp_mib_free((void **)net->mib.udp_stats_in6);
+	snmp_mib_free((void **)net->mib.udplite_stats_in6);
 }
 
 static int inet6_net_init(struct net *net)

net/ipv6/proc.c

@@ -182,7 +182,8 @@ static int snmp6_seq_show(struct seq_file *seq, void *v)
 	snmp6_seq_show_icmpv6msg(seq, (void **)icmpv6msg_statistics);
 	snmp6_seq_show_item(seq, (void **)net->mib.udp_stats_in6,
 			    snmp6_udp6_list);
-	snmp6_seq_show_item(seq, (void **)udplite_stats_in6, snmp6_udplite6_list);
+	snmp6_seq_show_item(seq, (void **)net->mib.udplite_stats_in6,
+			    snmp6_udplite6_list);
 	return 0;
 }
 

net/ipv6/udplite.c

@@ -13,8 +13,6 @@
  */
 #include "udp_impl.h"
 
-DEFINE_SNMP_STAT(struct udp_mib, udplite_stats_in6) __read_mostly;
-
 static int udplitev6_rcv(struct sk_buff *skb)
 {
 	return __udp6_lib_rcv(skb, udplite_hash, IPPROTO_UDPLITE);