diff options
author | Haishuang Yan <yanhaishuang@cmss.chinamobile.com> | 2017-12-16 17:54:50 +0800 |
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committer | David S. Miller <davem@davemloft.net> | 2017-12-19 10:59:44 -0500 |
commit | 2843a25348f8c7e8f0c969d506429d7a2ded186e (patch) | |
tree | 2ebc6fd5228472cd747768b7b25c44d2bc57b74d /drivers/net/geneve.c | |
parent | 57b61127ab7da18e612a5cd26783a5103b1c6385 (diff) | |
download | linux-2843a25348f8c7e8f0c969d506429d7a2ded186e.tar.bz2 |
geneve: speedup geneve tunnels dismantle
Since we now hold RTNL lock in geneve_exit_net, it's better batch them
to speedup geneve tunnel dismantle.
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/geneve.c')
-rw-r--r-- | drivers/net/geneve.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index b718a02a6bb6..667c44f68dbc 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -1638,19 +1638,16 @@ static __net_init int geneve_init_net(struct net *net) return 0; } -static void __net_exit geneve_exit_net(struct net *net) +static void geneve_destroy_tunnels(struct net *net, struct list_head *head) { struct geneve_net *gn = net_generic(net, geneve_net_id); struct geneve_dev *geneve, *next; struct net_device *dev, *aux; - LIST_HEAD(list); - - rtnl_lock(); /* gather any geneve devices that were moved into this ns */ for_each_netdev_safe(net, dev, aux) if (dev->rtnl_link_ops == &geneve_link_ops) - unregister_netdevice_queue(dev, &list); + unregister_netdevice_queue(dev, head); /* now gather any other geneve devices that were created in this ns */ list_for_each_entry_safe(geneve, next, &gn->geneve_list, next) { @@ -1658,18 +1655,29 @@ static void __net_exit geneve_exit_net(struct net *net) * to the list by the previous loop. */ if (!net_eq(dev_net(geneve->dev), net)) - unregister_netdevice_queue(geneve->dev, &list); + unregister_netdevice_queue(geneve->dev, head); } + WARN_ON_ONCE(!list_empty(&gn->sock_list)); +} + +static void __net_exit geneve_exit_batch_net(struct list_head *net_list) +{ + struct net *net; + LIST_HEAD(list); + + rtnl_lock(); + list_for_each_entry(net, net_list, exit_list) + geneve_destroy_tunnels(net, &list); + /* unregister the devices gathered above */ unregister_netdevice_many(&list); rtnl_unlock(); - WARN_ON_ONCE(!list_empty(&gn->sock_list)); } static struct pernet_operations geneve_net_ops = { .init = geneve_init_net, - .exit = geneve_exit_net, + .exit_batch = geneve_exit_batch_net, .id = &geneve_net_id, .size = sizeof(struct geneve_net), }; |