1 files changed, 12 insertions, 16 deletions

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index dda12fbd177b..6c2016f7f3d1 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -624,7 +624,7 @@ ___neigh_create(struct neigh_table *tbl, const void *pkey,
 
 	memcpy(n->primary_key, pkey, key_len);
 	n->dev = dev;
-	dev_hold(dev);
+	dev_hold_track(dev, &n->dev_tracker, GFP_ATOMIC);
 
 	/* Protocol specific setup. */
 	if (tbl->constructor &&	(error = tbl->constructor(n)) < 0) {
@@ -770,10 +770,10 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
 	write_pnet(&n->net, net);
 	memcpy(n->key, pkey, key_len);
 	n->dev = dev;
-	dev_hold(dev);
+	dev_hold_track(dev, &n->dev_tracker, GFP_KERNEL);
 
 	if (tbl->pconstructor && tbl->pconstructor(n)) {
-		dev_put(dev);
+		dev_put_track(dev, &n->dev_tracker);
 		kfree(n);
 		n = NULL;
 		goto out;
@@ -805,7 +805,7 @@ int pneigh_delete(struct neigh_table *tbl, struct net *net, const void *pkey,
 			write_unlock_bh(&tbl->lock);
 			if (tbl->pdestructor)
 				tbl->pdestructor(n);
-			dev_put(n->dev);
+			dev_put_track(n->dev, &n->dev_tracker);
 			kfree(n);
 			return 0;
 		}
@@ -838,7 +838,7 @@ static int pneigh_ifdown_and_unlock(struct neigh_table *tbl,
 		n->next = NULL;
 		if (tbl->pdestructor)
 			tbl->pdestructor(n);
-		dev_put(n->dev);
+		dev_put_track(n->dev, &n->dev_tracker);
 		kfree(n);
 	}
 	return -ENOENT;
@@ -879,7 +879,7 @@ void neigh_destroy(struct neighbour *neigh)
 	if (dev->netdev_ops->ndo_neigh_destroy)
 		dev->netdev_ops->ndo_neigh_destroy(dev, neigh);
 
-	dev_put(dev);
+	dev_put_track(dev, &neigh->dev_tracker);
 	neigh_parms_put(neigh->parms);
 
 	neigh_dbg(2, "neigh %p is destroyed\n", neigh);
@@ -1665,13 +1665,13 @@ struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
 		refcount_set(&p->refcnt, 1);
 		p->reachable_time =
 				neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME));
-		dev_hold(dev);
+		dev_hold_track(dev, &p->dev_tracker, GFP_KERNEL);
 		p->dev = dev;
 		write_pnet(&p->net, net);
 		p->sysctl_table = NULL;
 
 		if (ops->ndo_neigh_setup && ops->ndo_neigh_setup(dev, p)) {
-			dev_put(dev);
+			dev_put_track(dev, &p->dev_tracker);
 			kfree(p);
 			return NULL;
 		}
@@ -1702,7 +1702,7 @@ void neigh_parms_release(struct neigh_table *tbl, struct neigh_parms *parms)
 	list_del(&parms->list);
 	parms->dead = 1;
 	write_unlock_bh(&tbl->lock);
-	dev_put(parms->dev);
+	dev_put_track(parms->dev, &parms->dev_tracker);
 	call_rcu(&parms->rcu_head, neigh_rcu_free_parms);
 }
 EXPORT_SYMBOL(neigh_parms_release);
@@ -3364,7 +3364,7 @@ EXPORT_SYMBOL(neigh_seq_stop);
 
 static void *neigh_stat_seq_start(struct seq_file *seq, loff_t *pos)
 {
-	struct neigh_table *tbl = PDE_DATA(file_inode(seq->file));
+	struct neigh_table *tbl = pde_data(file_inode(seq->file));
 	int cpu;
 
 	if (*pos == 0)
@@ -3381,7 +3381,7 @@ static void *neigh_stat_seq_start(struct seq_file *seq, loff_t *pos)
 
 static void *neigh_stat_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
-	struct neigh_table *tbl = PDE_DATA(file_inode(seq->file));
+	struct neigh_table *tbl = pde_data(file_inode(seq->file));
 	int cpu;
 
 	for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
@@ -3401,7 +3401,7 @@ static void neigh_stat_seq_stop(struct seq_file *seq, void *v)
 
 static int neigh_stat_seq_show(struct seq_file *seq, void *v)
 {
-	struct neigh_table *tbl = PDE_DATA(file_inode(seq->file));
+	struct neigh_table *tbl = pde_data(file_inode(seq->file));
 	struct neigh_statistics *st = v;
 
 	if (v == SEQ_START_TOKEN) {
@@ -3770,10 +3770,6 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
 			neigh_proc_base_reachable_time;
 	}
 
-	/* Don't export sysctls to unprivileged users */
-	if (neigh_parms_net(p)->user_ns != &init_user_ns)
-		t->neigh_vars[0].procname = NULL;
-
 	switch (neigh_parms_family(p)) {
 	case AF_INET:
 	      p_name = "ipv4";