diff options
author | David S. Miller <davem@davemloft.net> | 2017-12-19 10:59:44 -0500 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-12-19 10:59:44 -0500 |
commit | 8e6d60435da8a911b67c36b17ff0319162e29563 (patch) | |
tree | 2ebc6fd5228472cd747768b7b25c44d2bc57b74d /drivers/net | |
parent | 41b0cd36de9bad10e689151ff15a28a88446bd6e (diff) | |
parent | 2843a25348f8c7e8f0c969d506429d7a2ded186e (diff) |
Merge branch 'net-speedup-vxlan-geneve-tunnel-dismantle'
Haishuang Yan says:
====================
net: speedup geneve/vxlan tunnels dismantle
This patch series add batching to vxlan/geneve tunnels so that netns
dismantles are less costly.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/geneve.c | 24 | ||||
-rw-r--r-- | drivers/net/vxlan.c | 26 |
2 files changed, 33 insertions, 17 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), }; diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 19b9cc51079e..48a0dc238f73 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -3692,18 +3692,16 @@ static __net_init int vxlan_init_net(struct net *net) return 0; } -static void __net_exit vxlan_exit_net(struct net *net) +static void vxlan_destroy_tunnels(struct net *net, struct list_head *head) { struct vxlan_net *vn = net_generic(net, vxlan_net_id); struct vxlan_dev *vxlan, *next; struct net_device *dev, *aux; unsigned int h; - LIST_HEAD(list); - rtnl_lock(); for_each_netdev_safe(net, dev, aux) if (dev->rtnl_link_ops == &vxlan_link_ops) - unregister_netdevice_queue(dev, &list); + unregister_netdevice_queue(dev, head); list_for_each_entry_safe(vxlan, next, &vn->vxlan_list, next) { /* If vxlan->dev is in the same netns, it has already been added @@ -3711,20 +3709,30 @@ static void __net_exit vxlan_exit_net(struct net *net) */ if (!net_eq(dev_net(vxlan->dev), net)) { gro_cells_destroy(&vxlan->gro_cells); - unregister_netdevice_queue(vxlan->dev, &list); + unregister_netdevice_queue(vxlan->dev, head); } } - unregister_netdevice_many(&list); - rtnl_unlock(); - for (h = 0; h < PORT_HASH_SIZE; ++h) WARN_ON_ONCE(!hlist_empty(&vn->sock_list[h])); } +static void __net_exit vxlan_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) + vxlan_destroy_tunnels(net, &list); + + unregister_netdevice_many(&list); + rtnl_unlock(); +} + static struct pernet_operations vxlan_net_ops = { .init = vxlan_init_net, - .exit = vxlan_exit_net, + .exit_batch = vxlan_exit_batch_net, .id = &vxlan_net_id, .size = sizeof(struct vxlan_net), }; |