Commit 85662c9f authored by Eric Dumazet's avatar Eric Dumazet Committed by Jakub Kicinski
Browse files

net: add net device refcount tracker to struct neighbour 



Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 56c1c779

include/net/neighbour.h

+1 −0
Original line number Diff line number Diff line
@@ -158,6 +158,7 @@ struct neighbour { 
	struct list_head	managed_list;

	struct rcu_head		rcu;

	struct net_device	*dev;

	netdevice_tracker	dev_tracker;

	u8			primary_key[0];

} __randomize_layout;

net/core/neighbour.c

+2 −2
Original line number Diff line number Diff line
@@ -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) {
@@ -880,7 +880,7 @@ 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);