From 3eec0047d9bdd68fddef6539e77fee99ba2531f2 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ilpo=20J=C3=A4rvinen?= Date: Thu, 11 Oct 2007 17:33:11 -0700 Subject: [PATCH] [TCP]: Fix mark_head_lost to ignore R-bit when trying to mark L MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This condition (plain R) can arise at least in recovery that is triggered after tcp_undo_loss. There isn't any reason why they should not be marked as lost, not marking makes in_flight estimator to return too large values. Signed-off-by: Ilpo Järvinen Signed-off-by: David S. Miller --- net/ipv4/tcp_input.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index e40857e073..c827285b48 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1987,7 +1987,7 @@ static void tcp_mark_head_lost(struct sock *sk, cnt += tcp_skb_pcount(skb); if (cnt > packets || after(TCP_SKB_CB(skb)->end_seq, high_seq)) break; - if (!(TCP_SKB_CB(skb)->sacked&TCPCB_TAGBITS)) { + if (!(TCP_SKB_CB(skb)->sacked & (TCPCB_SACKED_ACKED|TCPCB_LOST))) { TCP_SKB_CB(skb)->sacked |= TCPCB_LOST; tp->lost_out += tcp_skb_pcount(skb); tcp_verify_retransmit_hint(tp, skb); -- 2.39.5