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net: add a list_head parameter to dellink() method

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Adding a list_head parameter to rtnl_link_ops->dellink() methods
allow us to queue devices on a list, in order to dismantle
them all at once.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2009-10-27 07:06:36 +00:00
committed by David S. Miller
parent 9b5e383c11
commit 23289a37e2
7 changed files with 19 additions and 18 deletions
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14
net/core/rtnetlink.c
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@@ -248,7 +248,7 @@ static LIST_HEAD(link_ops);
int __rtnl_link_register(struct rtnl_link_ops *ops)
{
if (!ops->dellink)
ops->dellink = unregister_netdevice;
ops->dellink = unregister_netdevice_queue;
list_add_tail(&ops->list, &link_ops);
return 0;
@@ -277,13 +277,13 @@ EXPORT_SYMBOL_GPL(rtnl_link_register);
static void __rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops)
{
struct net_device *dev;
restart:
LIST_HEAD(list_kill);
for_each_netdev(net, dev) {
if (dev->rtnl_link_ops == ops) {
ops->dellink(dev);
goto restart;
}
if (dev->rtnl_link_ops == ops)
ops->dellink(dev, &list_kill);
}
unregister_netdevice_many(&list_kill);
}
void rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops)
@@ -972,7 +972,7 @@ static int rtnl_dellink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
if (!ops)
return -EOPNOTSUPP;
ops->dellink(dev);
ops->dellink(dev, NULL);
return 0;
}