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Commit 83ae4088 authored by Ilpo Järvinen's avatar Ilpo Järvinen Committed by David S. Miller
Browse files

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



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: default avatarIlpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b5860bba

include/net/tcp.h

+7 −4
Original line number Diff line number Diff line
@@ -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);

net/ipv4/tcp_input.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

}