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| author | David S. Miller <davem@davemloft.net> | 2018-07-22 10:52:37 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-22 10:52:37 -0700 |
| commit | 0fb8d5a030db52a184eca49320e5f4ff8dacd61d (patch) | |
| tree | 98b448481cc3ad9443a3e257e05f071b1233a24d /arch/mips/lib/uncached.c | |
| parent | 6e56830776828d8ca9897fc4429eeab47c3bb432 (diff) | |
| parent | e99465b952861533d9ba748fdbecc96d9a36da3e (diff) | |
Merge branch 'vxlan-fix-default-fdb-entry-user-space-notify-ordering-race'
Roopa Prabhu says:
====================
vxlan: fix default fdb entry user-space notify ordering/race
Problem:
In vxlan_newlink, a default fdb entry is added before register_netdev.
The default fdb creation function 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 series fixes the user-space netlink notification ordering issue
with the following changes:
- decouple fdb notify from fdb create.
- Move fdb notify after register_netdev.
- modify rtnl_configure_link to allow configuring a link early.
- 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>
Diffstat (limited to 'arch/mips/lib/uncached.c')
0 files changed, 0 insertions, 0 deletions