From b5860bbac7be1381626f3dc8a0cb970a60fcefb4 Mon Sep 17 00:00:00 2001 From: Ilpo Järvinen Date: Thu, 9 Aug 2007 14:33:18 +0300 Subject: [TCP]: Tighten tcp_sock's belt, drop left_out MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It is easily calculable when needed and user are not that many after all. Signed-off-by: Ilpo Järvinen Signed-off-by: David S. Miller --- net/ipv4/tcp_input.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) (limited to 'net/ipv4/tcp_input.c') diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index ea690afa592a..957e0fb8afb7 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1346,8 +1346,6 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_ } } - tp->left_out = tp->sacked_out + tp->lost_out; - 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); @@ -1408,7 +1406,6 @@ static void tcp_remove_reno_sacks(struct sock *sk, int acked) static inline void tcp_reset_reno_sack(struct tcp_sock *tp) { tp->sacked_out = 0; - tp->left_out = tp->lost_out; } int tcp_use_frto(struct sock *sk) @@ -1573,7 +1570,6 @@ static void tcp_enter_frto_loss(struct sock *sk, int allowed_segments, int flag) void tcp_clear_retrans(struct tcp_sock *tp) { - tp->left_out = 0; tp->retrans_out = 0; tp->fackets_out = 0; @@ -1973,7 +1969,7 @@ static void DBGUNDO(struct sock *sk, const char *msg) printk(KERN_DEBUG "Undo %s %u.%u.%u.%u/%u c%u l%u ss%u/%u p%u\n", msg, NIPQUAD(inet->daddr), ntohs(inet->dport), - tp->snd_cwnd, tp->left_out, + tp->snd_cwnd, tp->sacked_out + tp->lost_out, tp->snd_ssthresh, tp->prior_ssthresh, tp->packets_out); } @@ -2102,7 +2098,6 @@ static int tcp_try_undo_loss(struct sock *sk) DBGUNDO(sk, "partial loss"); tp->lost_out = 0; - tp->left_out = tp->sacked_out; tcp_undo_cwr(sk, 1); NET_INC_STATS_BH(LINUX_MIB_TCPLOSSUNDO); inet_csk(sk)->icsk_retransmits = 0; @@ -2126,8 +2121,6 @@ static void tcp_try_to_open(struct sock *sk, int flag) { struct tcp_sock *tp = tcp_sk(sk); - tcp_sync_left_out(tp); - if (tp->retrans_out == 0) tp->retrans_stamp = 0; @@ -2137,7 +2130,7 @@ static void tcp_try_to_open(struct sock *sk, int flag) if (inet_csk(sk)->icsk_ca_state != TCP_CA_CWR) { int state = TCP_CA_Open; - if (tp->left_out || tp->retrans_out || tp->undo_marker) + if (tp->sacked_out || tp->retrans_out || tp->undo_marker) state = TCP_CA_Disorder; if (inet_csk(sk)->icsk_ca_state != state) { -- cgit v1.2.3