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-rw-r--r--net/ipv4/tcp_input.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index ca9590f..0f75757 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1403,8 +1403,6 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
if (in_sack < 0)
break;
- fack_count += tcp_skb_pcount(skb);
-
sacked = TCP_SKB_CB(skb)->sacked;
/* Account D-SACK for retransmitted packet. */
@@ -1427,11 +1425,14 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
}
/* Nothing to do; acked frame is about to be dropped. */
+ fack_count += tcp_skb_pcount(skb);
continue;
}
- if (!in_sack)
+ if (!in_sack) {
+ fack_count += tcp_skb_pcount(skb);
continue;
+ }
if (!(sacked&TCPCB_SACKED_ACKED)) {
if (sacked & TCPCB_SACKED_RETRANS) {
@@ -1480,6 +1481,7 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
flag |= FLAG_DATA_SACKED;
tp->sacked_out += tcp_skb_pcount(skb);
+ fack_count += tcp_skb_pcount(skb);
if (fack_count > tp->fackets_out)
tp->fackets_out = fack_count;
@@ -1490,6 +1492,8 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
} else {
if (dup_sack && (sacked&TCPCB_RETRANS))
reord = min(fack_count, reord);
+
+ fack_count += tcp_skb_pcount(skb);
}
/* D-SACK. We can detect redundant retransmission
@@ -1515,7 +1519,7 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
if ((reord < tp->fackets_out) && icsk->icsk_ca_state != TCP_CA_Loss &&
(!tp->frto_highmark || after(tp->snd_una, tp->frto_highmark)))
- tcp_update_reordering(sk, ((tp->fackets_out + 1) - reord), 0);
+ tcp_update_reordering(sk, tp->fackets_out - reord, 0);
#if FASTRETRANS_DEBUG > 0
BUG_TRAP((int)tp->sacked_out >= 0);