From: Eric Dumazet <eduma...@google.com>
Date: Mon, 30 Sep 2019 15:44:44 -0700
> The cited commit exposed an old retransmits_timed_out() bug
> which assumed it could call tcp_model_timeout() with
> TCP_RTO_MIN as rto_base for all states.
>
> But flows in SYN_SENT or SYN_RECV state uses a different
> RTO base (1 sec instead of 200 ms, unless BPF choses
> another value)
>
> This caused a reduction of SYN retransmits from 6 to 4 with
> the default /proc/sys/net/ipv4/tcp_syn_retries value.
>
> Fixes: a41e8a88b06e ("tcp: better handle TCP_USER_TIMEOUT in SYN_SENT state")
> Signed-off-by: Eric Dumazet <eduma...@google.com>
Applied and queued up for -stable.
