提交 4b726e81 编写于 作者: E Eric Dumazet 提交者: David S. Miller

tcp: tcp_rack_reo_timeout() must update tp->tcp_mstamp

I wrongly assumed tp->tcp_mstamp was up to date at the time
tcp_rack_reo_timeout() was called.

It is not true, since we only update tcp->tcp_mstamp when receiving
a packet (as initially done in commit 69e996c5 ("tcp: add
tp->tcp_mstamp field")

tcp_rack_reo_timeout() being called by a timer and not an incoming
packet, we need to refresh tp->tcp_mstamp

Fixes: 7c1c7308 ("tcp: do not pass timestamp to tcp_rack_detect_loss()")
Signed-off-by: NEric Dumazet <edumazet@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: NSoheil Hassas Yeganeh <soheil@google.com>
Acked-by: NNeal Cardwell <ncardwell@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 b1513c35
......@@ -166,6 +166,7 @@ void tcp_rack_reo_timeout(struct sock *sk)
u32 timeout, prior_inflight;
prior_inflight = tcp_packets_in_flight(tp);
skb_mstamp_get(&tp->tcp_mstamp);
tcp_rack_detect_loss(sk, &timeout);
if (prior_inflight != tcp_packets_in_flight(tp)) {
if (inet_csk(sk)->icsk_ca_state != TCP_CA_Recovery) {
......
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