netdev - Re: [Patch net] ipv4: restore rt->fi for reference counting

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Message-ID: <CAM_iQpV2_dM0gbKg81LwaSZ7UEvLV9jkE0P-6wTB2iGLTS1bYg@mail.gmail.com>
Date:   Wed, 10 May 2017 09:40:59 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     David Miller <davem@...emloft.net>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        Eric Dumazet <edumazet@...gle.com>
Subject: Re: [Patch net] ipv4: restore rt->fi for reference counting

On Tue, May 9, 2017 at 4:51 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> On Tue, 2017-05-09 at 16:35 -0700, Cong Wang wrote:
>
>> This statement is only used to ensure we pass the "dead == fi->fib_nhs"
>> check right below the inner loop, it is fine to keep it without break since
>> fi is not changed in the inner loop.
>>
>
> So the dead++ above wont end up with (dead > fi->fib_nhs) ?

Good point, it could happen, we probably need another boolean to
address this.