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Date:   Sat, 19 May 2018 18:04:42 -0300
From:   Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
To:     Vlad Buslov <vladbu@mellanox.com>
Cc:     netdev@vger.kernel.org, davem@davemloft.net, jhs@mojatatu.com,
        xiyou.wangcong@gmail.com, jiri@resnulli.us, pablo@netfilter.org,
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        daniel@iogearbox.net, edumazet@google.com, keescook@chromium.org,
        linux-kernel@vger.kernel.org, netfilter-devel@vger.kernel.org,
        coreteam@netfilter.org, kliteyn@mellanox.com
Subject: Re: [PATCH 02/14] net: sched: change type of reference and bind
 counters
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On Mon, May 14, 2018 at 05:27:03PM +0300, Vlad Buslov wrote:
> Change type of action reference counter to refcount_t.
>
> Change type of action bind counter to atomic_t.
> This type is used to allow decrementing bind counter without testing
> for 0 result.

... and in what does not testing for 0 result helps?

  Marcelo