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authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>2008-09-20 21:20:20 -0700
committerDavid S. Miller <davem@davemloft.net>2008-09-20 21:20:20 -0700
commit006f582c73f4eda35e06fd323193c3df43fb3459 (patch)
treed82762cfb6fb5e6889a52d316fa263a80c4f9fb3 /include
parent41ea36e35a0daa75377b3e70680e5c3a3f83fe27 (diff)
tcp: convert retransmit_cnt_hint to seqno
Main benefit in this is that we can then freely point the retransmit_skb_hint to anywhere we want to because there's no longer need to know what would be the count changes involve, and since this is really used only as a terminator, unnecessary work is one time walk at most, and if some retransmissions are necessary after that point later on, the walk is not full waste of time anyway. Since retransmit_high must be kept valid, all lost markers must ensure that. Now I also have learned how those "holes" in the rexmittable skbs can appear, mtu probe does them. So I removed the misleading comment as well. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/tcp.h2
-rw-r--r--include/net/tcp.h2
2 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 2e2557388e3..d7637c4b284 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -358,7 +358,7 @@ struct tcp_sock {
*/
int lost_cnt_hint;
- int retransmit_cnt_hint;
+ u32 retransmit_high; /* L-bits may be on up to this seqno */
u32 lost_retrans_low; /* Sent seq after any rxmit (lowest) */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index b7167632695..d0e90c50722 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -472,6 +472,8 @@ extern void tcp_send_delayed_ack(struct sock *sk);
/* tcp_input.c */
extern void tcp_cwnd_application_limited(struct sock *sk);
+extern void tcp_skb_mark_lost_uncond_verify(struct tcp_sock *tp,
+ struct sk_buff *skb);
/* tcp_timer.c */
extern void tcp_init_xmit_timers(struct sock *);