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Date:   Thu, 13 Aug 2020 12:04:58 -0700
From:   Cong Wang <>
To:     Tonghao Zhang <>
Cc:     Joel Fernandes <>,
        Johan Knöös <>,
        Gregory Rose <>,
        "Uladzislau Rezki (Sony)" <>,
        "Paul E . McKenney" <>,,
        Linux Kernel Network Developers <>,
        rcu <>
Subject: Re: [PATCH v2] net: openvswitch: introduce common code for flushing flows

On Wed, Aug 12, 2020 at 2:59 AM <> wrote:
> From: Tonghao Zhang <>
> 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 <>
> Reported-at:
> Signed-off-by: Tonghao Zhang <>

Reviewed-by: Cong Wang <>


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