[RTNL]: Introduce the rtnl_kill_links helper.
This one is responsible for calling ->dellink on each net
device found in net to help with vlan net_exit hook in the
nearest future.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index edc6dbf..bc39e41 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -269,6 +269,26 @@
EXPORT_SYMBOL_GPL(rtnl_link_register);
+static void __rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops)
+{
+ struct net_device *dev;
+restart:
+ for_each_netdev(net, dev) {
+ if (dev->rtnl_link_ops == ops) {
+ ops->dellink(dev);
+ goto restart;
+ }
+ }
+}
+
+void rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops)
+{
+ rtnl_lock();
+ __rtnl_kill_links(net, ops);
+ rtnl_unlock();
+}
+EXPORT_SYMBOL_GPL(rtnl_kill_links);
+
/**
* __rtnl_link_unregister - Unregister rtnl_link_ops from rtnetlink.
* @ops: struct rtnl_link_ops * to unregister
@@ -277,17 +297,10 @@
*/
void __rtnl_link_unregister(struct rtnl_link_ops *ops)
{
- struct net_device *dev;
struct net *net;
for_each_net(net) {
-restart:
- for_each_netdev(net, dev) {
- if (dev->rtnl_link_ops == ops) {
- ops->dellink(dev);
- goto restart;
- }
- }
+ __rtnl_kill_links(net, ops);
}
list_del(&ops->list);
}