Commit 3eec0047 authored Oct 11, 2007 by Ilpo Järvinen Committed by David S. Miller Oct 11, 2007

[TCP]: Fix mark_head_lost to ignore R-bit when trying to mark L



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 <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 16e90681

net/ipv4/tcp_input.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);