[TCPDIAG]: Just rename everything to inet_diag

Next changeset will rename tcp_diag.[ch] to inet_diag.[ch].

I'm taking this longer route so as to easy review, making clear the changes
made all along the way.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
index 054de24..8cef9dc 100644
--- a/net/ipv4/tcp_vegas.c
+++ b/net/ipv4/tcp_vegas.c
@@ -365,10 +365,10 @@
 			       struct sk_buff *skb)
 {
 	const struct vegas *ca = inet_csk_ca(sk);
-	if (ext & (1<<(TCPDIAG_VEGASINFO-1))) {
+	if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
 		struct tcpvegas_info *info;
 
-		info = RTA_DATA(__RTA_PUT(skb, TCPDIAG_VEGASINFO,
+		info = RTA_DATA(__RTA_PUT(skb, INET_DIAG_VEGASINFO,
 					  sizeof(*info)));
 
 		info->tcpv_enabled = ca->doing_vegas_now;