iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[TCP] FRTO: Moved tcp_use_frto from tcp.h to tcp_input.c

Browse Source 
In addition, removed inline.

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 2007-02-21 22:59:58 -08:00 committed by David S. Miller
parent 9ead9a1d38
commit bdaae17da8
2 changed files with 14 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
include/net/tcp.h
View File

@ -341,6 +341,7 @@ extern struct sock * tcp_check_req(struct sock *sk,struct sk_buff *skb,
extern int tcp_child_process(struct sock *parent,
struct sock *child,
struct sk_buff *skb);
extern int tcp_use_frto(const struct sock *sk);
extern void tcp_enter_frto(struct sock *sk);
extern void tcp_enter_loss(struct sock *sk, int how);
extern void tcp_clear_retrans(struct tcp_sock *tp);
@ -1033,19 +1034,6 @@ static inline int tcp_paws_check(const struct tcp_options_received *rx_opt, int
#define TCP_CHECK_TIMER(sk) do { } while (0)
static inline int tcp_use_frto(const struct sock *sk)
{
const struct tcp_sock *tp = tcp_sk(sk);
/* F-RTO must be activated in sysctl and there must be some
* unsent new data, and the advertised window should allow
* sending it.
*/
return (sysctl_tcp_frto && sk->sk_send_head &&
!after(TCP_SKB_CB(sk->sk_send_head)->end_seq,
tp->snd_una + tp->snd_wnd));
}
static inline void tcp_mib_init(void)
{
/* See RFC 2012 */

13
net/ipv4/tcp_input.c
View File

@ -1236,6 +1236,19 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
return flag;
}
int tcp_use_frto(const struct sock *sk)
{
const struct tcp_sock *tp = tcp_sk(sk);
/* F-RTO must be activated in sysctl and there must be some
* unsent new data, and the advertised window should allow
* sending it.
*/
return (sysctl_tcp_frto && sk->sk_send_head &&
!after(TCP_SKB_CB(sk->sk_send_head)->end_seq,
tp->snd_una + tp->snd_wnd));
}
/* RTO occurred, but do not yet enter loss state. Instead, transmit two new
* segments to see from the next ACKs whether any data was really missing.
* If the RTO was spurious, new ACKs should arrive.