commit 7645485eee60c03a4cbc0139d4848c6b8bf1ad39
Author: root <root@rhel6.(none)>
Date:   Thu Apr 29 18:34:50 2010 -0400

    linux-2.6-527-iptables-classify-add-mark.patch

diff --git a/include/linux/netfilter/xt_CLASSIFY.h b/include/linux/netfilter/xt_CLASSIFY.h
index a813bf1..c5cec1d 100644
--- a/include/linux/netfilter/xt_CLASSIFY.h
+++ b/include/linux/netfilter/xt_CLASSIFY.h
@@ -5,6 +5,7 @@
 
 struct xt_classify_target_info {
 	__u32 priority;
+	__u8 add_mark;
 };
 
 #endif /*_XT_CLASSIFY_H */
diff --git a/net/netfilter/xt_CLASSIFY.c b/net/netfilter/xt_CLASSIFY.c
index 011bc80..5732034 100644
--- a/net/netfilter/xt_CLASSIFY.c
+++ b/net/netfilter/xt_CLASSIFY.c
@@ -32,6 +32,8 @@ classify_tg(struct sk_buff *skb, const struct xt_target_param *par)
 	const struct xt_classify_target_info *clinfo = par->targinfo;
 
 	skb->priority = clinfo->priority;
+	if (clinfo->add_mark)
+		skb->priority += skb->mark; 
 	return XT_CONTINUE;
 }