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dpif-netdev: Flush offload rules upon port deletion.

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When a port is deleted, flow deletion requests are posted, and the netdev
is removed from offload netdevs map. Following flow deletion handling may
be done after the netdev has already been removed from the offload
netdevs map, so the HW rule is not removed and the data object is not
freed (memory leak). Flush offload rules upon port deletion, and disable
pending handling of offloads to fix it.

Signed-off-by: Eli Britstein <elibr@nvidia.com>
Reviewed-by: Gaetan Rivet <gaetanr@nvidia.com>
Acked-by: Emma Finn <emma.finn@intel.com>
Tested-by: Emma Finn <emma.finn@intel.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
This commit is contained in:
Eli Britstein
2020-12-28 10:19:00 +00:00
committed by Ilya Maximets
parent 1178df2d18
commit 62d1c28e9c
1 changed files with 2 additions and 0 deletions
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2
lib/dpif-netdev.c
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@@ -2283,6 +2283,8 @@ static void
do_del_port(struct dp_netdev *dp, struct dp_netdev_port *port)
OVS_REQUIRES(dp->port_mutex)
{
netdev_flow_flush(port->netdev);
netdev_uninit_flow_api(port->netdev);
hmap_remove(&dp->ports, &port->node);
seq_change(dp->port_seq);