diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2009-12-03 02:29:04 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-03 12:22:02 -0800 |
| commit | 04dc7f6be3a7b308f8545bb45772c9fb75f71aca (patch) | |
| tree | 11cfe976f4adffdbdeeed71f591613089e9d6fe5 /net/core/dev.c | |
| parent | 72ad937abd0a43b7cf2c557ba1f2ec75e608c516 (diff) | |
net: Move network device exit batching
Move network device exit batching from a special case in
net_namespace.c to using common mechanisms in dev.c
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index e3e18dee0bd..0913a08a87d 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5766,8 +5766,33 @@ static void __net_exit default_device_exit(struct net *net) rtnl_unlock(); } +static void __net_exit default_device_exit_batch(struct list_head *net_list) +{ + /* At exit all network devices most be removed from a network + * namespace. Do this in the reverse order of registeration. + * Do this across as many network namespaces as possible to + * improve batching efficiency. + */ + struct net_device *dev; + struct net *net; + LIST_HEAD(dev_kill_list); + + rtnl_lock(); + list_for_each_entry(net, net_list, exit_list) { + for_each_netdev_reverse(net, dev) { + if (dev->rtnl_link_ops) + dev->rtnl_link_ops->dellink(dev, &dev_kill_list); + else + unregister_netdevice_queue(dev, &dev_kill_list); + } + } + unregister_netdevice_many(&dev_kill_list); + rtnl_unlock(); +} + static struct pernet_operations __net_initdata default_device_ops = { .exit = default_device_exit, + .exit_batch = default_device_exit_batch, }; /* |