diff options
| author | Roopa Prabhu <roopa@cumulusnetworks.com> | 2018-07-20 13:21:04 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-22 10:52:37 -0700 |
| commit | e99465b952861533d9ba748fdbecc96d9a36da3e (patch) | |
| tree | 98b448481cc3ad9443a3e257e05f071b1233a24d /lib/uuid.c | |
| parent | f6e053858671bb156b6e44ad66418acc8c7f4e77 (diff) | |
vxlan: fix default fdb entry netlink notify ordering during netdev create
Problem:
In vxlan_newlink, a default fdb entry is added before register_netdev.
The default fdb creation function also notifies user-space of the
fdb entry on the vxlan device which user-space does not know about yet.
(RTM_NEWNEIGH goes before RTM_NEWLINK for the same ifindex).
This patch fixes the user-space netlink notification ordering issue
with the following changes:
- decouple fdb notify from fdb create.
- Move fdb notify after register_netdev.
- Call rtnl_configure_link in vxlan newlink handler to notify
userspace about the newlink before fdb notify and
hence avoiding the user-space race.
Fixes: afbd8bae9c79 ("vxlan: add implicit fdb entry for default destination")
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/uuid.c')
0 files changed, 0 insertions, 0 deletions