diff options
| author | Lawrence Brakmo <brakmo@fb.com> | 2016-06-08 21:16:44 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-10 23:07:49 -0700 |
| commit | 6f094b9ec680209c5b7314feee983b2f4c910b1b (patch) | |
| tree | e695d80ba28c1788606007c9734da7ed0335ffd7 /net/ipv4/tcp_output.c | |
| parent | 3e7fb80b604b5bc7116fe374f604eb7c85f00b43 (diff) | |
tcp: add in_flight to tcp_skb_cb
Add in_flight (bytes in flight when packet was sent) field
to tx component of tcp_skb_cb and make it available to
congestion modules' pkts_acked() function through the
ack_sample function argument.
Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 8bd9911fdd16..b1bcba0563f2 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -911,9 +911,12 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it, int err; BUG_ON(!skb || !tcp_skb_pcount(skb)); + tp = tcp_sk(sk); if (clone_it) { skb_mstamp_get(&skb->skb_mstamp); + TCP_SKB_CB(skb)->tx.in_flight = TCP_SKB_CB(skb)->end_seq + - tp->snd_una; if (unlikely(skb_cloned(skb))) skb = pskb_copy(skb, gfp_mask); @@ -924,7 +927,6 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it, } inet = inet_sk(sk); - tp = tcp_sk(sk); tcb = TCP_SKB_CB(skb); memset(&opts, 0, sizeof(opts)); |