tcp: use current time in tcp_rcv_space_adjust()
[ Upstream commitpull/10/head8632385022
] When I switched rcv_rtt_est to high resolution timestamps, I forgot that tp->tcp_mstamp needed to be refreshed in tcp_rcv_space_adjust() Using an old timestamp leads to autotuning lags. Fixes:645f4c6f2e
("tcp: switch rcv_rtt_est and rcvq_space to high resolution timestamps") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Wei Wang <weiwan@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Yuchung Cheng <ycheng@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
de514e0609
commit
91c5e6553a
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@ -592,6 +592,7 @@ void tcp_rcv_space_adjust(struct sock *sk)
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int time;
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int copied;
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tcp_mstamp_refresh(tp);
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time = tcp_stamp_us_delta(tp->tcp_mstamp, tp->rcvq_space.time);
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if (time < (tp->rcv_rtt_est.rtt_us >> 3) || tp->rcv_rtt_est.rtt_us == 0)
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return;
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