diff options
| author | Ilpo Järvinen | 2007-11-16 04:41:46 +0100 |
|---|---|---|
| committer | David S. Miller | 2008-01-28 23:54:03 +0100 |
| commit | a47e5a988a575e64c8c9bae65a1dfe3dca7cba32 (patch) | |
| tree | 30c389efb3a98a7af24150e5f6462f3c379d1e63 /net/ipv4/tcp_input.c | |
| parent | [TCP]: non-FACK SACK follows conservative SACK loss recovery (diff) | |
| download | kernel-qcow2-linux-a47e5a988a575e64c8c9bae65a1dfe3dca7cba32.tar.gz kernel-qcow2-linux-a47e5a988a575e64c8c9bae65a1dfe3dca7cba32.tar.xz kernel-qcow2-linux-a47e5a988a575e64c8c9bae65a1dfe3dca7cba32.zip | |
[TCP]: Convert highest_sack to sk_buff to allow direct access
It is going to replace the sack fastpath hint quite soon... :-)
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
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 | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index c0e8f2b1fa7e..31294b52ad42 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1245,7 +1245,7 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ int num_sacks = (ptr[1] - TCPOLEN_SACK_BASE)>>3; int reord = tp->packets_out; int prior_fackets; - u32 highest_sack_end_seq = tp->lost_retrans_low; + u32 highest_sack_end_seq; int flag = 0; int found_dup_sack = 0; int cached_fack_count; @@ -1256,7 +1256,7 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ if (!tp->sacked_out) { if (WARN_ON(tp->fackets_out)) tp->fackets_out = 0; - tp->highest_sack = tp->snd_una; + tp->highest_sack = tcp_write_queue_head(sk); } prior_fackets = tp->fackets_out; @@ -1483,10 +1483,9 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ if (fack_count > tp->fackets_out) tp->fackets_out = fack_count; - if (after(TCP_SKB_CB(skb)->seq, tp->highest_sack)) { - tp->highest_sack = TCP_SKB_CB(skb)->seq; - highest_sack_end_seq = TCP_SKB_CB(skb)->end_seq; - } + if (after(TCP_SKB_CB(skb)->seq, tcp_highest_sack_seq(tp))) + tp->highest_sack = skb; + } else { if (dup_sack && (sacked&TCPCB_RETRANS)) reord = min(fack_count, reord); @@ -1514,6 +1513,7 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ flag &= ~FLAG_ONLY_ORIG_SACKED; } + highest_sack_end_seq = TCP_SKB_CB(tp->highest_sack)->end_seq; if (tcp_is_fack(tp) && tp->retrans_out && after(highest_sack_end_seq, tp->lost_retrans_low) && icsk->icsk_ca_state == TCP_CA_Recovery) |