[ovs-dev] [PATCH v2] net: openvswitch: introduce common code for flushing flows

[Cong Wang]

On Wed, Aug 12, 2020 at 2:59 AM <xiangxia.m.yue at gmail.com> wrote:
>
> From: Tonghao Zhang <xiangxia.m.yue at gmail.com>
>
> To avoid some issues, for example RCU usage warning and double free,
> we should flush the flows under ovs_lock. This patch refactors
> table_instance_destroy and introduces table_instance_flow_flush
> which can be invoked by __dp_destroy or ovs_flow_tbl_flush.
>
> Fixes: 50b0e61b32ee ("net: openvswitch: fix possible memleak on destroy flow-table")
> Reported-by: Johan Knöös <jknoos at google.com>
> Reported-at: https://mail.openvswitch.org/pipermail/ovs-discuss/2020-August/050489.html
> Signed-off-by: Tonghao Zhang <xiangxia.m.yue at gmail.com>

Reviewed-by: Cong Wang <xiyou.wangcong at gmail.com>

Thanks.