mib: add net to NET_ADD_STATS_BH

This one is tricky. 

The thing is that this macro is only used when killing tw buckets, 
but since this killer is promiscuous wrt to which net each particular
tw belongs to, I have to use it only when NET_NS is off. When the net
namespaces are on, I use the INET_INC_STATS_BH for each bucket.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 13 insertions, 4 deletions

diff --git a/include/net/ip.h b/include/net/ip.h
index 79d13192ecc8..a8275b1338d7 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -164,7 +164,7 @@ DECLARE_SNMP_STAT(struct linux_mib, net_statistics);
 #define NET_INC_STATS(net, field)       do { (void)net; SNMP_INC_STATS(net_statistics, field); } while (0)
 #define NET_INC_STATS_BH(net, field)    do { (void)net; SNMP_INC_STATS_BH(net_statistics, field); } while (0)
 #define NET_INC_STATS_USER(net, field)  do { (void)net; SNMP_INC_STATS_USER(net_statistics, field); } while (0)
-#define NET_ADD_STATS_BH(field, adnd)   SNMP_ADD_STATS_BH(net_statistics, field, adnd)
+#define NET_ADD_STATS_BH(net, field, adnd) do { (void)net; SNMP_ADD_STATS_BH(net_statistics, field, adnd); } while (0)
 #define NET_ADD_STATS_USER(field, adnd) SNMP_ADD_STATS_USER(net_statistics, field, adnd)
 
 extern unsigned long snmp_fold_field(void *mib[], int offt);
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 06006a5ac8b9..75c2def8f9a0 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -160,6 +160,9 @@ rescan:
                 __inet_twsk_del_dead_node(tw);
                 spin_unlock(&twdr->death_lock);
                 __inet_twsk_kill(tw, twdr->hashinfo);
+#ifdef CONFIG_NET_NS
+                NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_TIMEWAITED);
+#endif
                 inet_twsk_put(tw);
                 killed++;
                 spin_lock(&twdr->death_lock);
@@ -178,8 +181,9 @@ rescan:
         }
 
         twdr->tw_count -= killed;
-        NET_ADD_STATS_BH(LINUX_MIB_TIMEWAITED, killed);
-
+#ifndef CONFIG_NET_NS
+        NET_ADD_STATS_BH(&init_net, LINUX_MIB_TIMEWAITED, killed);
+#endif
         return ret;
 }
 
@@ -372,6 +376,9 @@ void inet_twdr_twcal_tick(unsigned long data)
                                                        &twdr->twcal_row[slot]) {
                                 __inet_twsk_del_dead_node(tw);
                                 __inet_twsk_kill(tw, twdr->hashinfo);
+#ifdef CONFIG_NET_NS
+                                NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_TIMEWAITKILLED);
+#endif
                                 inet_twsk_put(tw);
                                 killed++;
                         }
@@ -395,7 +402,9 @@ void inet_twdr_twcal_tick(unsigned long data)
 out:
         if ((twdr->tw_count -= killed) == 0)
                 del_timer(&twdr->tw_timer);
-        NET_ADD_STATS_BH(LINUX_MIB_TIMEWAITKILLED, killed);
+#ifndef CONFIG_NET_NS
+        NET_ADD_STATS_BH(&init_net, LINUX_MIB_TIMEWAITKILLED, killed);
+#endif
         spin_unlock(&twdr->death_lock);
 }