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Commit 8b37ef0a authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

macvlan: use call_rcu for port free 



Use call_rcu rather than synchronize_rcu.

Signed-off-by: default avatarJiri Pirko <jpirko@redhat.com>
Acked-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 271c1dfa

drivers/net/macvlan.c

+10 −2
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ struct macvlan_port { 
	struct net_device	*dev;

	struct hlist_head	vlan_hash[MACVLAN_HASH_SIZE];

	struct list_head	vlans;

	struct rcu_head		rcu;

};



static struct macvlan_dev *macvlan_hash_lookup(const struct macvlan_port *port,
@@ -540,14 +541,21 @@ static int macvlan_port_create(struct net_device *dev) 
	return err;

}



static void macvlan_port_rcu_free(struct rcu_head *head)

{

	struct macvlan_port *port;



	port = container_of(head, struct macvlan_port, rcu);

	kfree(port);

}



static void macvlan_port_destroy(struct net_device *dev)

{

	struct macvlan_port *port = dev->macvlan_port;



	netdev_rx_handler_unregister(dev);

	rcu_assign_pointer(dev->macvlan_port, NULL);

	synchronize_rcu();

	kfree(port);

	call_rcu(&port->rcu, macvlan_port_rcu_free);

}



static int macvlan_validate(struct nlattr *tb[], struct nlattr *data[])