1 files changed, 33 insertions, 28 deletions

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 19b8e003f15..d8d0ca99c65 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -388,7 +388,7 @@ struct neighbour *neigh_lookup_nodev(struct neigh_table *tbl, struct net *net,
 	hash_val = tbl->hash(pkey, NULL);
 	for (n = tbl->hash_buckets[hash_val & tbl->hash_mask]; n; n = n->next) {
 		if (!memcmp(n->primary_key, pkey, key_len) &&
-		    (net == n->dev->nd_net)) {
+		    net_eq(dev_net(n->dev), net)) {
 			neigh_hold(n);
 			NEIGH_CACHE_STAT_INC(tbl, hits);
 			break;
@@ -480,7 +480,7 @@ struct pneigh_entry *__pneigh_lookup(struct neigh_table *tbl,
 
 	for (n = tbl->phash_buckets[hash_val]; n; n = n->next) {
 		if (!memcmp(n->key, pkey, key_len) &&
-		    (n->net == net) &&
+		    (pneigh_net(n) == net) &&
 		    (n->dev == dev || !n->dev))
 			break;
 	}
@@ -505,7 +505,7 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
 
 	for (n = tbl->phash_buckets[hash_val]; n; n = n->next) {
 		if (!memcmp(n->key, pkey, key_len) &&
-		    (n->net == net) &&
+		    net_eq(pneigh_net(n), net) &&
 		    (n->dev == dev || !n->dev)) {
 			read_unlock_bh(&tbl->lock);
 			goto out;
@@ -522,7 +522,9 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
 	if (!n)
 		goto out;
 
+#ifdef CONFIG_NET_NS
 	n->net = hold_net(net);
+#endif
 	memcpy(n->key, pkey, key_len);
 	n->dev = dev;
 	if (dev)
@@ -562,14 +564,14 @@ int pneigh_delete(struct neigh_table *tbl, struct net *net, const void *pkey,
 	for (np = &tbl->phash_buckets[hash_val]; (n = *np) != NULL;
 	     np = &n->next) {
 		if (!memcmp(n->key, pkey, key_len) && n->dev == dev &&
-		    (n->net == net)) {
+		    net_eq(pneigh_net(n), net)) {
 			*np = n->next;
 			write_unlock_bh(&tbl->lock);
 			if (tbl->pdestructor)
 				tbl->pdestructor(n);
 			if (n->dev)
 				dev_put(n->dev);
-			release_net(n->net);
+			release_net(pneigh_net(n));
 			kfree(n);
 			return 0;
 		}
@@ -592,7 +594,7 @@ static int pneigh_ifdown(struct neigh_table *tbl, struct net_device *dev)
 					tbl->pdestructor(n);
 				if (n->dev)
 					dev_put(n->dev);
-				release_net(n->net);
+				release_net(pneigh_net(n));
 				kfree(n);
 				continue;
 			}
@@ -1306,9 +1308,7 @@ static inline struct neigh_parms *lookup_neigh_params(struct neigh_table *tbl,
 	struct neigh_parms *p;
 
 	for (p = &tbl->parms; p; p = p->next) {
-		if (p->net != net)
-			continue;
-		if ((p->dev && p->dev->ifindex == ifindex) ||
+		if ((p->dev && p->dev->ifindex == ifindex && net_eq(neigh_parms_net(p), net)) ||
 		    (!p->dev && !ifindex))
 			return p;
 	}
@@ -1322,7 +1322,7 @@ struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
 	struct neigh_parms *p, *ref;
 	struct net *net;
 
-	net = dev->nd_net;
+	net = dev_net(dev);
 	ref = lookup_neigh_params(tbl, net, 0);
 	if (!ref)
 		return NULL;
@@ -1342,7 +1342,9 @@ struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
 
 		dev_hold(dev);
 		p->dev = dev;
+#ifdef CONFIG_NET_NS
 		p->net = hold_net(net);
+#endif
 		p->sysctl_table = NULL;
 		write_lock_bh(&tbl->lock);
 		p->next		= tbl->parms.next;
@@ -1384,7 +1386,7 @@ void neigh_parms_release(struct neigh_table *tbl, struct neigh_parms *parms)
 
 static void neigh_parms_destroy(struct neigh_parms *parms)
 {
-	release_net(parms->net);
+	release_net(neigh_parms_net(parms));
 	kfree(parms);
 }
 
@@ -1395,7 +1397,9 @@ void neigh_table_init_no_netlink(struct neigh_table *tbl)
 	unsigned long now = jiffies;
 	unsigned long phsize;
 
+#ifdef CONFIG_NET_NS
 	tbl->parms.net = &init_net;
+#endif
 	atomic_set(&tbl->parms.refcnt, 1);
 	INIT_RCU_HEAD(&tbl->parms.rcu_head);
 	tbl->parms.reachable_time =
@@ -1502,7 +1506,7 @@ int neigh_table_clear(struct neigh_table *tbl)
 
 static int neigh_delete(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	struct ndmsg *ndm;
 	struct nlattr *dst_attr;
 	struct neigh_table *tbl;
@@ -1568,7 +1572,7 @@ out:
 
 static int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	struct ndmsg *ndm;
 	struct nlattr *tb[NDA_MAX+1];
 	struct neigh_table *tbl;
@@ -1836,7 +1840,7 @@ static const struct nla_policy nl_ntbl_parm_policy[NDTPA_MAX+1] = {
 
 static int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	struct neigh_table *tbl;
 	struct ndtmsg *ndtmsg;
 	struct nlattr *tb[NDTA_MAX+1];
@@ -1961,7 +1965,7 @@ errout:
 
 static int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
 {
-	struct net *net = skb->sk->sk_net;
+	struct net *net = sock_net(skb->sk);
 	int family, tidx, nidx = 0;
 	int tbl_skip = cb->args[0];
 	int neigh_skip = cb->args[1];
@@ -1982,7 +1986,7 @@ static int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
 			break;
 
 		for (nidx = 0, p = tbl->parms.next; p; p = p->next) {
-			if (net != p->net)
+			if (!net_eq(neigh_parms_net(p), net))
 				continue;
 
 			if (nidx++ < neigh_skip)
@@ -2061,7 +2065,7 @@ static void neigh_update_notify(struct neighbour *neigh)
 static int neigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb,
 			    struct netlink_callback *cb)
 {
-	struct net * net = skb->sk->sk_net;
+	struct net * net = sock_net(skb->sk);
 	struct neighbour *n;
 	int rc, h, s_h = cb->args[1];
 	int idx, s_idx = idx = cb->args[2];
@@ -2074,7 +2078,7 @@ static int neigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb,
 			s_idx = 0;
 		for (n = tbl->hash_buckets[h], idx = 0; n; n = n->next) {
 			int lidx;
-			if (n->dev->nd_net != net)
+			if (dev_net(n->dev) != net)
 				continue;
 			lidx = idx++;
 			if (lidx < s_idx)
@@ -2169,7 +2173,7 @@ EXPORT_SYMBOL(__neigh_for_each_release);
 static struct neighbour *neigh_get_first(struct seq_file *seq)
 {
 	struct neigh_seq_state *state = seq->private;
-	struct net *net = state->p.net;
+	struct net *net = seq_file_net(seq);
 	struct neigh_table *tbl = state->tbl;
 	struct neighbour *n = NULL;
 	int bucket = state->bucket;
@@ -2179,7 +2183,7 @@ static struct neighbour *neigh_get_first(struct seq_file *seq)
 		n = tbl->hash_buckets[bucket];
 
 		while (n) {
-			if (n->dev->nd_net != net)
+			if (!net_eq(dev_net(n->dev), net))
 				goto next;
 			if (state->neigh_sub_iter) {
 				loff_t fakep = 0;
@@ -2210,7 +2214,7 @@ static struct neighbour *neigh_get_next(struct seq_file *seq,
 					loff_t *pos)
 {
 	struct neigh_seq_state *state = seq->private;
-	struct net *net = state->p.net;
+	struct net *net = seq_file_net(seq);
 	struct neigh_table *tbl = state->tbl;
 
 	if (state->neigh_sub_iter) {
@@ -2222,7 +2226,7 @@ static struct neighbour *neigh_get_next(struct seq_file *seq,
 
 	while (1) {
 		while (n) {
-			if (n->dev->nd_net != net)
+			if (!net_eq(dev_net(n->dev), net))
 				goto next;
 			if (state->neigh_sub_iter) {
 				void *v = state->neigh_sub_iter(state, n, pos);
@@ -2270,7 +2274,7 @@ static struct neighbour *neigh_get_idx(struct seq_file *seq, loff_t *pos)
 static struct pneigh_entry *pneigh_get_first(struct seq_file *seq)
 {
 	struct neigh_seq_state *state = seq->private;
-	struct net * net = state->p.net;
+	struct net *net = seq_file_net(seq);
 	struct neigh_table *tbl = state->tbl;
 	struct pneigh_entry *pn = NULL;
 	int bucket = state->bucket;
@@ -2278,7 +2282,7 @@ static struct pneigh_entry *pneigh_get_first(struct seq_file *seq)
 	state->flags |= NEIGH_SEQ_IS_PNEIGH;
 	for (bucket = 0; bucket <= PNEIGH_HASHMASK; bucket++) {
 		pn = tbl->phash_buckets[bucket];
-		while (pn && (pn->net != net))
+		while (pn && !net_eq(pneigh_net(pn), net))
 			pn = pn->next;
 		if (pn)
 			break;
@@ -2293,7 +2297,7 @@ static struct pneigh_entry *pneigh_get_next(struct seq_file *seq,
 					    loff_t *pos)
 {
 	struct neigh_seq_state *state = seq->private;
-	struct net * net = state->p.net;
+	struct net *net = seq_file_net(seq);
 	struct neigh_table *tbl = state->tbl;
 
 	pn = pn->next;
@@ -2301,7 +2305,7 @@ static struct pneigh_entry *pneigh_get_next(struct seq_file *seq,
 		if (++state->bucket > PNEIGH_HASHMASK)
 			break;
 		pn = tbl->phash_buckets[state->bucket];
-		while (pn && (pn->net != net))
+		while (pn && !net_eq(pneigh_net(pn), net))
 			pn = pn->next;
 		if (pn)
 			break;
@@ -2506,7 +2510,7 @@ static inline size_t neigh_nlmsg_size(void)
 
 static void __neigh_notify(struct neighbour *n, int type, int flags)
 {
-	struct net *net = n->dev->nd_net;
+	struct net *net = dev_net(n->dev);
 	struct sk_buff *skb;
 	int err = -ENOBUFS;
 
@@ -2763,7 +2767,8 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
 	neigh_path[NEIGH_CTL_PATH_PROTO].procname = p_name;
 	neigh_path[NEIGH_CTL_PATH_PROTO].ctl_name = p_id;
 
-	t->sysctl_header = register_sysctl_paths(neigh_path, t->neigh_vars);
+	t->sysctl_header =
+		register_net_sysctl_table(neigh_parms_net(p), neigh_path, t->neigh_vars);
 	if (!t->sysctl_header)
 		goto free_procname;