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[TCP]: Add tcp_left_out(tp) "back" to get cleaner looking lines

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tp->left_out got removed but nothing came to replace it back
then (users just did addition by themselves), so add function
for users now.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ilpo Järvinen 2007-08-09 14:37:30 +03:00 committed by David S. Miller
parent b5860bbac7
commit 83ae40885f
2 changed files with 8 additions and 5 deletions
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11
include/net/tcp.h
View File

@ -719,6 +719,11 @@ static inline void tcp_ca_event(struct sock *sk, const enum tcp_ca_event event)
icsk->icsk_ca_ops->cwnd_event(sk, event);
}
static inline unsigned int tcp_left_out(const struct tcp_sock *tp)
{
return tp->sacked_out + tp->lost_out;
}
/* This determines how many packets are "in the network" to the best
* of our knowledge. In many cases it is conservative, but where
* detailed information is available from the receiver (via SACK
@ -735,8 +740,7 @@ static inline void tcp_ca_event(struct sock *sk, const enum tcp_ca_event event)
*/
static inline unsigned int tcp_packets_in_flight(const struct tcp_sock *tp)
{
return tp->packets_out - (tp->sacked_out + tp->lost_out) +
tp->retrans_out;
return tp->packets_out - tcp_left_out(tp) + tp->retrans_out;
}
/* If cwnd > ssthresh, we may raise ssthresh to be half-way to cwnd.
@ -756,8 +760,7 @@ static inline __u32 tcp_current_ssthresh(const struct sock *sk)
static inline void tcp_sync_left_out(struct tcp_sock *tp)
{
BUG_ON(tp->rx_opt.sack_ok &&
(tp->sacked_out + tp->lost_out > tp->packets_out));
BUG_ON(tp->rx_opt.sack_ok && (tcp_left_out(tp) > tp->packets_out));
}
extern void tcp_enter_cwr(struct sock *sk, const int set_ssthresh);

2
net/ipv4/tcp_input.c
View File

@ -1969,7 +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->sacked_out + tp->lost_out,
tp->snd_cwnd, tcp_left_out(tp),
tp->snd_ssthresh, tp->prior_ssthresh,
tp->packets_out);
}