netns: add net parameter to IP6_INC_STATS

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

9 files changed, 57 insertions, 40 deletions

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index dfa7ae3c5607..26c17988b905 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -129,7 +129,8 @@ extern struct ctl_path net_ipv6_ctl_path[];
 /* MIBs */
 DECLARE_SNMP_STAT(struct ipstats_mib, ipv6_statistics);
 
-#define IP6_INC_STATS(idev,field)       _DEVINC(ipv6, , idev, field)
+#define IP6_INC_STATS(net, idev,field)  ({ (void)(net); \
+                _DEVINC(ipv6, , idev, field); })
 #define IP6_INC_STATS_BH(idev,field)    _DEVINC(ipv6, _BH, idev, field)
 #define IP6_ADD_STATS_BH(idev,field,val) _DEVADD(ipv6, _BH, idev, field, val)
 
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index b3157a0cc15d..758cdd7dc27e 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -183,7 +183,7 @@ static inline int icmpv6_xrlim_allow(struct sock *sk, int type,
          */
         dst = ip6_route_output(net, sk, fl);
         if (dst->error) {
-                IP6_INC_STATS(ip6_dst_idev(dst),
+                IP6_INC_STATS(net, ip6_dst_idev(dst),
                               IPSTATS_MIB_OUTNOROUTES);
         } else if (dst->dev && (dst->dev->flags&IFF_LOOPBACK)) {
                 res = 1;
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index f22393e11666..db28c208f329 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -150,13 +150,14 @@ static int ip6_output2(struct sk_buff *skb)
                                         ip6_dev_loopback_xmit);
 
                         if (ipv6_hdr(skb)->hop_limit == 0) {
-                                IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS);
+                                IP6_INC_STATS(dev_net(dev), idev,
+                                              IPSTATS_MIB_OUTDISCARDS);
                                 kfree_skb(skb);
                                 return 0;
                         }
                 }
 
-                IP6_INC_STATS(idev, IPSTATS_MIB_OUTMCASTPKTS);
+                IP6_INC_STATS(dev_net(dev), idev, IPSTATS_MIB_OUTMCASTPKTS);
         }
 
         return NF_HOOK(PF_INET6, NF_INET_POST_ROUTING, skb, NULL, skb->dev,
@@ -175,7 +176,8 @@ int ip6_output(struct sk_buff *skb)
 {
         struct inet6_dev *idev = ip6_dst_idev(skb->dst);
         if (unlikely(idev->cnf.disable_ipv6)) {
-                IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS);
+                IP6_INC_STATS(dev_net(skb->dst->dev), idev,
+                              IPSTATS_MIB_OUTDISCARDS);
                 kfree_skb(skb);
                 return 0;
         }
@@ -194,6 +196,7 @@ int ip6_output(struct sk_buff *skb)
 int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
              struct ipv6_txoptions *opt, int ipfragok)
 {
+        struct net *net = sock_net(sk);
         struct ipv6_pinfo *np = inet6_sk(sk);
         struct in6_addr *first_hop = &fl->fl6_dst;
         struct dst_entry *dst = skb->dst;
@@ -216,7 +219,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
                 if (skb_headroom(skb) < head_room) {
                         struct sk_buff *skb2 = skb_realloc_headroom(skb, head_room);
                         if (skb2 == NULL) {
-                                IP6_INC_STATS(ip6_dst_idev(skb->dst),
+                                IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
                                               IPSTATS_MIB_OUTDISCARDS);
                                 kfree_skb(skb);
                                 return -ENOBUFS;
@@ -270,7 +273,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
 
         mtu = dst_mtu(dst);
         if ((skb->len <= mtu) || skb->local_df || skb_is_gso(skb)) {
-                IP6_INC_STATS(ip6_dst_idev(skb->dst),
+                IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
                               IPSTATS_MIB_OUTREQUESTS);
                 return NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, dst->dev,
                                 dst_output);
@@ -280,7 +283,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
                 printk(KERN_DEBUG "IPv6: sending pkt_too_big to self\n");
         skb->dev = dst->dev;
         icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
-        IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGFAILS);
+        IP6_INC_STATS(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGFAILS);
         kfree_skb(skb);
         return -EMSGSIZE;
 }
@@ -422,7 +425,7 @@ int ip6_forward(struct sk_buff *skb)
                 goto drop;
 
         if (!xfrm6_policy_check(NULL, XFRM_POLICY_FWD, skb)) {
-                IP6_INC_STATS(ip6_dst_idev(dst), IPSTATS_MIB_INDISCARDS);
+                IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_INDISCARDS);
                 goto drop;
         }
 
@@ -468,13 +471,14 @@ int ip6_forward(struct sk_buff *skb)
                 if (proxied > 0)
                         return ip6_input(skb);
                 else if (proxied < 0) {
-                        IP6_INC_STATS(ip6_dst_idev(dst), IPSTATS_MIB_INDISCARDS);
+                        IP6_INC_STATS(net, ip6_dst_idev(dst),
+                                      IPSTATS_MIB_INDISCARDS);
                         goto drop;
                 }
         }
 
         if (!xfrm6_route_forward(skb)) {
-                IP6_INC_STATS(ip6_dst_idev(dst), IPSTATS_MIB_INDISCARDS);
+                IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_INDISCARDS);
                 goto drop;
         }
         dst = skb->dst;
@@ -530,7 +534,7 @@ int ip6_forward(struct sk_buff *skb)
         }
 
         if (skb_cow(skb, dst->dev->hard_header_len)) {
-                IP6_INC_STATS(ip6_dst_idev(dst), IPSTATS_MIB_OUTDISCARDS);
+                IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTDISCARDS);
                 goto drop;
         }
 
@@ -622,6 +626,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
         __be32 frag_id = 0;
         int ptr, offset = 0, err=0;
         u8 *prevhdr, nexthdr = 0;
+        struct net *net = dev_net(skb->dst->dev);
 
         hlen = ip6_find_1stfragopt(skb, &prevhdr);
         nexthdr = *prevhdr;
@@ -635,7 +640,8 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
         if (!skb->local_df) {
                 skb->dev = skb->dst->dev;
                 icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
-                IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGFAILS);
+                IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+                              IPSTATS_MIB_FRAGFAILS);
                 kfree_skb(skb);
                 return -EMSGSIZE;
         }
@@ -684,7 +690,8 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                 *prevhdr = NEXTHDR_FRAGMENT;
                 tmp_hdr = kmemdup(skb_network_header(skb), hlen, GFP_ATOMIC);
                 if (!tmp_hdr) {
-                        IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGFAILS);
+                        IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+                                      IPSTATS_MIB_FRAGFAILS);
                         return -ENOMEM;
                 }
 
@@ -735,7 +742,8 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 
                         err = output(skb);
                         if(!err)
-                                IP6_INC_STATS(ip6_dst_idev(&rt->u.dst), IPSTATS_MIB_FRAGCREATES);
+                                IP6_INC_STATS(net, ip6_dst_idev(&rt->u.dst),
+                                              IPSTATS_MIB_FRAGCREATES);
 
                         if (err || !frag)
                                 break;
@@ -748,7 +756,8 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                 kfree(tmp_hdr);
 
                 if (err == 0) {
-                        IP6_INC_STATS(ip6_dst_idev(&rt->u.dst), IPSTATS_MIB_FRAGOKS);
+                        IP6_INC_STATS(net, ip6_dst_idev(&rt->u.dst),
+                                      IPSTATS_MIB_FRAGOKS);
                         dst_release(&rt->u.dst);
                         return 0;
                 }
@@ -759,7 +768,8 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
                         frag = skb;
                 }
 
-                IP6_INC_STATS(ip6_dst_idev(&rt->u.dst), IPSTATS_MIB_FRAGFAILS);
+                IP6_INC_STATS(net, ip6_dst_idev(&rt->u.dst),
+                              IPSTATS_MIB_FRAGFAILS);
                 dst_release(&rt->u.dst);
                 return err;
         }
@@ -793,7 +803,7 @@ slow_path:
 
                 if ((frag = alloc_skb(len+hlen+sizeof(struct frag_hdr)+LL_ALLOCATED_SPACE(rt->u.dst.dev), GFP_ATOMIC)) == NULL) {
                         NETDEBUG(KERN_INFO "IPv6: frag: no memory for new fragment!\n");
-                        IP6_INC_STATS(ip6_dst_idev(skb->dst),
+                        IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
                                       IPSTATS_MIB_FRAGFAILS);
                         err = -ENOMEM;
                         goto fail;
@@ -857,15 +867,16 @@ slow_path:
                 if (err)
                         goto fail;
 
-                IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGCREATES);
+                IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
+                              IPSTATS_MIB_FRAGCREATES);
         }
-        IP6_INC_STATS(ip6_dst_idev(skb->dst),
+        IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
                       IPSTATS_MIB_FRAGOKS);
         kfree_skb(skb);
         return err;
 
 fail:
-        IP6_INC_STATS(ip6_dst_idev(skb->dst),
+        IP6_INC_STATS(net, ip6_dst_idev(skb->dst),
                       IPSTATS_MIB_FRAGFAILS);
         kfree_skb(skb);
         return err;
@@ -1385,7 +1396,7 @@ alloc_new_skb:
         return 0;
 error:
         inet->cork.length -= length;
-        IP6_INC_STATS(rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS);
+        IP6_INC_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS);
         return err;
 }
 
@@ -1409,6 +1420,7 @@ int ip6_push_pending_frames(struct sock *sk)
         struct in6_addr final_dst_buf, *final_dst = &final_dst_buf;
         struct inet_sock *inet = inet_sk(sk);
         struct ipv6_pinfo *np = inet6_sk(sk);
+        struct net *net = sock_net(sk);
         struct ipv6hdr *hdr;
         struct ipv6_txoptions *opt = np->cork.opt;
         struct rt6_info *rt = (struct rt6_info *)inet->cork.dst;
@@ -1462,7 +1474,7 @@ int ip6_push_pending_frames(struct sock *sk)
         skb->mark = sk->sk_mark;
 
         skb->dst = dst_clone(&rt->u.dst);
-        IP6_INC_STATS(rt->rt6i_idev, IPSTATS_MIB_OUTREQUESTS);
+        IP6_INC_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUTREQUESTS);
         if (proto == IPPROTO_ICMPV6) {
                 struct inet6_dev *idev = ip6_dst_idev(skb->dst);
 
@@ -1491,7 +1503,7 @@ void ip6_flush_pending_frames(struct sock *sk)
 
         while ((skb = __skb_dequeue_tail(&sk->sk_write_queue)) != NULL) {
                 if (skb->dst)
-                        IP6_INC_STATS(ip6_dst_idev(skb->dst),
+                        IP6_INC_STATS(sock_net(sk), ip6_dst_idev(skb->dst),
                                       IPSTATS_MIB_OUTDISCARDS);
                 kfree_skb(skb);
         }
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index e7c03bcc2788..a1d588d0b5d4 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1446,7 +1446,7 @@ static void mld_sendpack(struct sk_buff *skb)
         int err;
         struct flowi fl;
 
-        IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
+        IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTREQUESTS);
         payload_len = (skb->tail - skb->network_header) - sizeof(*pip6);
         mldlen = skb->tail - skb->transport_header;
         pip6->payload_len = htons(payload_len);
@@ -1771,7 +1771,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
         struct flowi fl;
 
         rcu_read_lock();
-        IP6_INC_STATS(__in6_dev_get(dev),
+        IP6_INC_STATS(net, __in6_dev_get(dev),
                       IPSTATS_MIB_OUTREQUESTS);
         rcu_read_unlock();
         if (type == ICMPV6_MGM_REDUCTION)
@@ -1787,7 +1787,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
 
         if (skb == NULL) {
                 rcu_read_lock();
-                IP6_INC_STATS(__in6_dev_get(dev),
+                IP6_INC_STATS(net, __in6_dev_get(dev),
                               IPSTATS_MIB_OUTDISCARDS);
                 rcu_read_unlock();
                 return;
@@ -1841,9 +1841,9 @@ out:
         if (!err) {
                 ICMP6MSGOUT_INC_STATS(idev, type);
                 ICMP6_INC_STATS(idev, ICMP6_MIB_OUTMSGS);
-                IP6_INC_STATS(idev, IPSTATS_MIB_OUTMCASTPKTS);
+                IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTMCASTPKTS);
         } else
-                IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS);
+                IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS);
 
         if (likely(idev != NULL))
                 in6_dev_put(idev);
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index f1c62ba0f56b..ce5b61763fd0 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -516,7 +516,7 @@ static void __ndisc_send(struct net_device *dev,
         skb->dst = dst;
 
         idev = in6_dev_get(dst->dev);
-        IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
+        IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTREQUESTS);
 
         err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, dst->dev,
                       dst_output);
@@ -1581,7 +1581,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
 
         buff->dst = dst;
         idev = in6_dev_get(dst->dev);
-        IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
+        IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTREQUESTS);
         err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, buff, NULL, dst->dev,
                       dst_output);
         if (!err) {
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 4cb4844a3220..6b29b03925f1 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -33,7 +33,8 @@ int ip6_route_me_harder(struct sk_buff *skb)
 #endif
 
         if (dst->error) {
-                IP6_INC_STATS(ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES);
+                IP6_INC_STATS(&init_net, ip6_dst_idev(dst),
+                              IPSTATS_MIB_OUTNOROUTES);
                 LIMIT_NETDEBUG(KERN_DEBUG "ip6_route_me_harder: No more route.\n");
                 dst_release(dst);
                 return -EINVAL;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index e53e493606c5..2ba04d41dc25 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -638,7 +638,7 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
         if (err)
                 goto error_fault;
 
-        IP6_INC_STATS(rt->rt6i_idev, IPSTATS_MIB_OUTREQUESTS);
+        IP6_INC_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUTREQUESTS);
         err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
                       dst_output);
         if (err > 0)
@@ -652,7 +652,7 @@ error_fault:
         err = -EFAULT;
         kfree_skb(skb);
 error:
-        IP6_INC_STATS(rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS);
+        IP6_INC_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS);
         return err;
 }
 
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index f4f62f086096..63644075f2d6 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -433,7 +433,8 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
         return -1;
 
 err:
-        IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMFAILS);
+        IP6_INC_STATS(dev_net(skb->dst->dev), ip6_dst_idev(skb->dst),
+                      IPSTATS_MIB_REASMFAILS);
         kfree_skb(skb);
         return -1;
 }
@@ -573,7 +574,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
         struct frag_hdr *fhdr;
         struct frag_queue *fq;
         struct ipv6hdr *hdr = ipv6_hdr(skb);
-        struct net *net;
+        struct net *net = dev_net(skb->dst->dev);
 
         IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMREQDS);
 
@@ -597,7 +598,6 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
                 return 1;
         }
 
-        net = dev_net(skb->dev);
         if (atomic_read(&net->ipv6.frags.mem) > net->ipv6.frags.high_thresh)
                 ip6_evictor(net, ip6_dst_idev(skb->dst));
 
@@ -619,7 +619,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
         return -1;
 
 fail_hdr:
-        IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
+        IP6_INC_STATS(net, ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
         icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, skb_network_header_len(skb));
         return -1;
 }
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index e10a17015504..89dc69924340 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1833,16 +1833,19 @@ int ipv6_route_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 static int ip6_pkt_drop(struct sk_buff *skb, int code, int ipstats_mib_noroutes)
 {
         int type;
+        struct dst_entry *dst = skb->dst;
         switch (ipstats_mib_noroutes) {
         case IPSTATS_MIB_INNOROUTES:
                 type = ipv6_addr_type(&ipv6_hdr(skb)->daddr);
                 if (type == IPV6_ADDR_ANY || type == IPV6_ADDR_RESERVED) {
-                        IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INADDRERRORS);
+                        IP6_INC_STATS(dev_net(dst->dev), ip6_dst_idev(dst),
+                                      IPSTATS_MIB_INADDRERRORS);
                         break;
                 }
                 /* FALLTHROUGH */
         case IPSTATS_MIB_OUTNOROUTES:
-                IP6_INC_STATS(ip6_dst_idev(skb->dst), ipstats_mib_noroutes);
+                IP6_INC_STATS(dev_net(dst->dev), ip6_dst_idev(dst),
+                              ipstats_mib_noroutes);
                 break;
         }
         icmpv6_send(skb, ICMPV6_DEST_UNREACH, code, 0, skb->dev);