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authorPavel Emelyanov <xemul@openvz.org>2008-04-16 00:46:52 -0700
committerDavid S. Miller <davem@davemloft.net>2008-04-16 00:46:52 -0700
commit669f87baab90183e13b95480aecf8d7bac92ca3c (patch)
treecca1b9347893cb8275dad19945b69371102d57b6
parent3a931a80cb25f905da377d1bb0ba9b1641aa579a (diff)
downloadop-kernel-dev-669f87baab90183e13b95480aecf8d7bac92ca3c.zip
op-kernel-dev-669f87baab90183e13b95480aecf8d7bac92ca3c.tar.gz
[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>
-rw-r--r--include/net/rtnetlink.h1
-rw-r--r--net/core/rtnetlink.c29
2 files changed, 22 insertions, 8 deletions
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index 793863e..3c1895e 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -74,6 +74,7 @@ struct rtnl_link_ops {
extern int __rtnl_link_register(struct rtnl_link_ops *ops);
extern void __rtnl_link_unregister(struct rtnl_link_ops *ops);
+extern void rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops);
extern int rtnl_link_register(struct rtnl_link_ops *ops);
extern void rtnl_link_unregister(struct rtnl_link_ops *ops);
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 @@ int rtnl_link_register(struct rtnl_link_ops *ops)
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 @@ EXPORT_SYMBOL_GPL(rtnl_link_register);
*/
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);
}
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