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authorEthan Jackson <ethan@nicira.com>2011-08-23 17:20:00 -0700
committerEthan Jackson <ethan@nicira.com>2011-09-01 17:21:49 -0700
commitf14d80834e73e5e91892e4763e01ccfd3a2d3be2 (patch)
treeedc9ee891bfce5fb0c923939313d38c7ec26648d /datapath/dp_notify.c
parente408762f5d16370d9308c22f8f9853d911e92a95 (diff)
datapath: genl_notify() on port disappearances.
Before this patch, if a vport detached itself from the datapath without interaction from userspace, rtnetlink notifications would be sent, but genl notifications would not. Feature #6809. Signed-off-by: Ethan Jackson <ethan@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com>
Diffstat (limited to 'datapath/dp_notify.c')
-rw-r--r--datapath/dp_notify.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/datapath/dp_notify.c b/datapath/dp_notify.c
index 94d671dd..7b3b219a 100644
--- a/datapath/dp_notify.c
+++ b/datapath/dp_notify.c
@@ -9,6 +9,7 @@
/* Handle changes to managed devices */
#include <linux/netdevice.h>
+#include <net/genetlink.h>
#include "datapath.h"
#include "vport-internal_dev.h"
@@ -33,8 +34,23 @@ static int dp_device_event(struct notifier_block *unused, unsigned long event,
switch (event) {
case NETDEV_UNREGISTER:
- if (!is_internal_dev(dev))
+ if (!is_internal_dev(dev)) {
+ struct sk_buff *reply;
+
dp_detach_port(vport);
+ reply = ovs_vport_cmd_build_info(vport, 0, 0,
+ OVS_VPORT_CMD_DEL);
+ if (IS_ERR(reply)) {
+ netlink_set_err(INIT_NET_GENL_SOCK, 0,
+ dp_vport_multicast_group.id,
+ PTR_ERR(reply));
+ break;
+ }
+
+ genl_notify(reply, dev_net(dev), 0,
+ dp_vport_multicast_group.id, NULL,
+ GFP_KERNEL);
+ }
break;
case NETDEV_CHANGENAME: