missing forward port.

[davej@xxxxxxxxxxxxxxxxx]

This patch showed up in 2.4 a while back, and
still isn't in 2.5.

    Dave

diff -urpN --exclude-from=/home/davej/.exclude bk-linus/net/ipv4/tcp.c 
linux-2.5/net/ipv4/tcp.c
--- bk-linus/net/ipv4/tcp.c     2003-01-08 10:49:35.000000000 -0100
+++ linux-2.5/net/ipv4/tcp.c    2003-01-17 00:59:34.000000000 -0100
@@ -1192,7 +1192,8 @@ new_segment:
 
                        from += copy;
                        copied += copy;
-                       seglen -= copy;
+                       if ((seglen -= copy) == 0 && iovlen == 0)
+                               goto out;
 
                        if (skb->len != mss_now || (flags & MSG_OOB))
                                continue;