linux-kernel - [PATCH stable 4.19 0/4] tcp: fix the timeout value calculated by tcp_model

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Date:   Sun, 26 Sep 2021 15:18:38 +0800
From:   Qiumiao Zhang <zhangqiumiao1@...wei.com>
To:     <linux-kernel@...r.kernel.org>
CC:     <stable@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sasha Levin <sasha.levin@...cle.com>,
        "David S . Miller" <davem@...emloft.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        <netdev@...r.kernel.org>, <yanan@...wei.com>,
        <rose.chen@...wei.com>
Subject: [PATCH stable 4.19 0/4] tcp: fix the timeout value calculated by tcp_model_timeout() is not accurate

This patch series is present in v5.15 and fixes the problem that the
timeout value calculated by tcp_model_timeout() is not accurate.

Pseudo-Shortlog of commits:

Eric Dumazet <edumazet@...gle.com>
    tcp: address problems caused by EDT misshaps

Yuchung Cheng <ycheng@...gle.com>
    tcp: always set retrans_stamp on recovery

Yuchung Cheng <ycheng@...gle.com>
    tcp: create a helper to model exponential backoff

Eric Dumazet <edumazet@...gle.com>
    tcp: adjust rto_base in retransmits_timed_out()

 net/ipv4/tcp_input.c  | 16 ++++++-----
 net/ipv4/tcp_output.c |  9 +++----
 net/ipv4/tcp_timer.c  | 63 ++++++++++++++++++++-----------------------
 3 files changed, 43 insertions(+), 45 deletions(-)

-- 
2.19.1