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tcp: consolidate tcp_mark_skb_lost and tcp_skb_mark_lost

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tcp_skb_mark_lost is used by RFC6675-SACK and can easily be replaced
with the new tcp_mark_skb_lost handler.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuchung Cheng 2020-09-25 10:04:31 -07:00 committed by David S. Miller
parent 686989700c
commit 534a2109fb
1 changed files with 2 additions and 12 deletions
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14
net/ipv4/tcp_input.c
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@ -1043,17 +1043,6 @@ void tcp_mark_skb_lost(struct sock *sk, struct sk_buff *skb)
}
}
static void tcp_skb_mark_lost(struct tcp_sock *tp, struct sk_buff *skb)
{
if (!(TCP_SKB_CB(skb)->sacked & (TCPCB_LOST|TCPCB_SACKED_ACKED))) {
tcp_verify_retransmit_hint(tp, skb);
tp->lost_out += tcp_skb_pcount(skb);
tcp_sum_lost(tp, skb);
TCP_SKB_CB(skb)->sacked |= TCPCB_LOST;
}
}
/* Updates the delivered and delivered_ce counts */
static void tcp_count_delivered(struct tcp_sock *tp, u32 delivered,
bool ece_ack)
@ -2308,7 +2297,8 @@ static void tcp_mark_head_lost(struct sock *sk, int packets, int mark_head)
if (cnt > packets)
break;
tcp_skb_mark_lost(tp, skb);
if (!(TCP_SKB_CB(skb)->sacked & TCPCB_LOST))
tcp_mark_skb_lost(sk, skb);
if (mark_head)
break;