diff options
| author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | 2008-09-20 21:20:20 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-09-20 21:20:20 -0700 |
| commit | 006f582c73f4eda35e06fd323193c3df43fb3459 (patch) | |
| tree | d82762cfb6fb5e6889a52d316fa263a80c4f9fb3 /include | |
| parent | 41ea36e35a0daa75377b3e70680e5c3a3f83fe27 (diff) | |
| download | op-kernel-dev-006f582c73f4eda35e06fd323193c3df43fb3459.zip op-kernel-dev-006f582c73f4eda35e06fd323193c3df43fb3459.tar.gz | |
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.h | 2 | ||||
| -rw-r--r-- | include/net/tcp.h | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 2e25573..d7637c4 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 b716763..d0e90c5 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 *); |
