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authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>2007-10-12 04:33:11 +0400
committerDavid S. Miller <davem@davemloft.net>2007-10-12 04:33:11 +0400
commit3eec0047d9bdd68fddef6539e77fee99ba2531f2 (patch)
tree2cfb0d6737ffa136228d0b81c4e5b56a7d555280 /net
parent16e906812f885cf16d95577dba260db6375ba571 (diff)
downloadlinux-3eec0047d9bdd68fddef6539e77fee99ba2531f2.tar.xz
[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>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_input.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e40857e073b3..c827285b488e 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);