tcp: fix stretch ACK bugs in BIC (be0d935e) · Commits · 戴 / test

Changes BIC to properly handle stretch ACKs in additive increase mode by passing in the count of ACKed packets to tcp_cong_avoid_ai(). Signed-off-by:

net/ipv4/tcp_bic.c

+6 −5

Original line number	Diff line number	Diff line
		@@ -145,12 +145,13 @@ static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked)
		if (!tcp_is_cwnd_limited(sk))
		return;

		if (tcp_in_slow_start(tp))
		tcp_slow_start(tp, acked);
		else {
		bictcp_update(ca, tp->snd_cwnd);
		tcp_cong_avoid_ai(tp, ca->cnt, 1);
		if (tcp_in_slow_start(tp)) {
		acked = tcp_slow_start(tp, acked);
		if (!acked)
		return;
		}
		bictcp_update(ca, tp->snd_cwnd);
		tcp_cong_avoid_ai(tp, ca->cnt, acked);
		}

		/*