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openvswitch: Add support for network namespaces.

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Following patch adds support for network namespace to openvswitch.
Since it must release devices when namespaces are destroyed, a
side effect of this patch is that the module no longer keeps a
refcount but instead cleans up any state when it is unloaded.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
This commit is contained in:
Pravin B Shelar
2012-02-22 19:58:59 -08:00
committed by Jesse Gross
parent 0d7614f09c
commit 46df7b8145
7 changed files with 207 additions and 123 deletions
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net/openvswitch/dp_notify.c
+5 -3
View File
@@ -41,19 +41,21 @@ static int dp_device_event(struct notifier_block *unused, unsigned long event,
case NETDEV_UNREGISTER:
if (!ovs_is_internal_dev(dev)) {
struct sk_buff *notify;
struct datapath *dp = vport->dp;
notify = ovs_vport_cmd_build_info(vport, 0, 0,
OVS_VPORT_CMD_DEL);
ovs_dp_detach_port(vport);
if (IS_ERR(notify)) {
netlink_set_err(init_net.genl_sock, 0,
netlink_set_err(ovs_dp_get_net(dp)->genl_sock, 0,
ovs_dp_vport_multicast_group.id,
PTR_ERR(notify));
break;
}
genlmsg_multicast(notify, 0, ovs_dp_vport_multicast_group.id,
GFP_KERNEL);
genlmsg_multicast_netns(ovs_dp_get_net(dp), notify, 0,
ovs_dp_vport_multicast_group.id,
GFP_KERNEL);
}
break;
}