netdev - Re: [PATCH net 0/3] TCP BBR sampling fixes for loss recovery undo

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Message-ID: <CADVnQymVKptA4ZFxfW2M5gHKfZspt_pp2NcWW1ryyaXtrrQeBw@mail.gmail.com>
Date:   Thu, 7 Dec 2017 12:48:40 -0500
From:   Neal Cardwell <ncardwell@...gle.com>
To:     David Miller <davem@...emloft.net>
Cc:     Netdev <netdev@...r.kernel.org>,
        Neal Cardwell <ncardwell@...gle.com>
Subject: Re: [PATCH net 0/3] TCP BBR sampling fixes for loss recovery undo

On Thu, Dec 7, 2017 at 12:43 PM, Neal Cardwell <ncardwell@...gle.com> wrote:
> This patch series has a few minor bug fixes for cases where spurious
> loss recoveries can trick BBR estimators into estimating that the
> available bandwidth is much lower than the true available bandwidth.
> In both cases the fix here is to just reset the estimator upon loss
> recovery undo.
>
> Neal Cardwell (3):
>   tcp_bbr: record "full bw reached" decision in new full_bw_reached bit
>   tcp_bbr: reset full pipe detection on loss recovery undo
>   tcp_bbr: reset long-term bandwidth sampling on loss recovery undo
>
>  net/ipv4/tcp_bbr.c | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)

Sorry, I should have mentioned these patches are all stable candidates
and should have all carried a footer of:

  Fixes: 0f8782ea1497 ("tcp_bbr: add BBR congestion control")

David, I can resend a v2 with that footer on each patch if you want.

neal