diff options
| author | Nikolay Aleksandrov <nikolay@cumulusnetworks.com> | 2019-04-03 13:49:24 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-05 03:39:47 +0300 |
| commit | 8dc350202d32dbd9482b97dbf8ca22fbcb2a7918 (patch) | |
| tree | 9f063e0598b437bd6c83f9c54f223719020b073e /net/bridge/br_stp_if.c | |
| parent | a0640e610f7bc02935092ca7be1b45b1381425b0 (diff) | |
| download | linux-8dc350202d32dbd9482b97dbf8ca22fbcb2a7918.tar.xz | |
net: bridge: optimize backup_port fdb convergence
We can optimize the fdb convergence when a backup_port is present by not
immediately flushing the entries of the stopped port since traffic for
those entries will flow towards the backup_port.
There are 2 cases specifically that benefit most:
- when the stopped port comes up before the entries expire by themselves
- when there's an external entry refresh and they're kept while the
backup_port is operating (e.g. mlag)
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_stp_if.c')
| -rw-r--r-- | net/bridge/br_stp_if.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c index 808e2b914015..8d65ae5210e0 100644 --- a/net/bridge/br_stp_if.c +++ b/net/bridge/br_stp_if.c @@ -117,7 +117,8 @@ void br_stp_disable_port(struct net_bridge_port *p) del_timer(&p->forward_delay_timer); del_timer(&p->hold_timer); - br_fdb_delete_by_port(br, p, 0, 0); + if (!rcu_access_pointer(p->backup_port)) + br_fdb_delete_by_port(br, p, 0, 0); br_multicast_disable_port(p); br_configuration_update(br); |