diff options
| author | Yuchung Cheng <ycheng@google.com> | 2020-09-25 19:04:29 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-26 02:17:14 +0200 |
| commit | fd2146741c98569c8b4dc41b8ccae597150b122c (patch) | |
| tree | 9f6d6031172a0cf5f6bb6d0a68acfc2007a8ca76 /net/ipv4/tcp_input.c | |
| parent | tcp: consistently check retransmit hint (diff) | |
| download | linux-fd2146741c98569c8b4dc41b8ccae597150b122c.tar.xz linux-fd2146741c98569c8b4dc41b8ccae597150b122c.zip | |
tcp: move tcp_mark_skb_lost
A pure refactor to move tcp_mark_skb_lost to tcp_input.c to prepare
for the later loss marking consolidation.
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>
Diffstat (limited to 'net/ipv4/tcp_input.c')
| -rw-r--r-- | net/ipv4/tcp_input.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index f9f4321d18b3..1cf4fcf8f41b 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1016,6 +1016,20 @@ static void tcp_verify_retransmit_hint(struct tcp_sock *tp, struct sk_buff *skb) tp->retransmit_skb_hint = skb; } +void tcp_mark_skb_lost(struct sock *sk, struct sk_buff *skb) +{ + struct tcp_sock *tp = tcp_sk(sk); + + tcp_skb_mark_lost_uncond_verify(tp, skb); + if (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_RETRANS) { + /* Account for retransmits that are lost again */ + TCP_SKB_CB(skb)->sacked &= ~TCPCB_SACKED_RETRANS; + tp->retrans_out -= tcp_skb_pcount(skb); + NET_ADD_STATS(sock_net(sk), LINUX_MIB_TCPLOSTRETRANSMIT, + tcp_skb_pcount(skb)); + } +} + /* Sum the number of packets on the wire we have marked as lost. * There are two cases we care about here: * a) Packet hasn't been marked lost (nor retransmitted), |