netdev - [PATCH 05/21] [TCP] MTUprobe: prepare skb fields earlier

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Date:	Sun,  2 Dec 2007 00:48:00 +0200
From:	"Ilpo Järvinen" <ilpo.jarvinen@...sinki.fi>
To:	David Miller <davem@...emloft.net>,
	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	netdev@...r.kernel.org,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	"Ilpo Järvinen" <ilpo.jarvinen@...sinki.fi>
Subject: [PATCH 05/21] [TCP] MTUprobe: prepare skb fields earlier

From: =?ISO-8859-1?q?Ilpo_J=E4rvinen?= <ilpo.jarvinen@...sinki.fi>

They better be valid when call to write_queue functions is made
once things that follow are going in.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...sinki.fi>
---
 net/ipv4/tcp_output.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index f8266f9..4cb4a7f 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1343,7 +1343,6 @@ static int tcp_mtu_probe(struct sock *sk)
 	sk_charge_skb(sk, nskb);
 
 	skb = tcp_send_head(sk);
-	tcp_insert_write_queue_before(nskb, skb, sk);
 
 	TCP_SKB_CB(nskb)->seq = TCP_SKB_CB(skb)->seq;
 	TCP_SKB_CB(nskb)->end_seq = TCP_SKB_CB(skb)->seq + probe_size;
@@ -1352,6 +1351,8 @@ static int tcp_mtu_probe(struct sock *sk)
 	nskb->csum = 0;
 	nskb->ip_summed = skb->ip_summed;
 
+	tcp_insert_write_queue_before(nskb, skb, sk);
+
 	len = 0;
 	while (len < probe_size) {
 		next = tcp_write_queue_next(sk, skb);
-- 
1.5.0.6

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