diff -urp linux-2.6.7/mm/memory.c linux-2.6.7-zpage/mm/memory.c
--- linux-2.6.7/mm/memory.c	Tue Jun 15 22:19:22 2004
+++ linux-2.6.7-zpage/mm/memory.c	Thu Jun 24 12:08:42 2004
@@ -1064,7 +1064,8 @@ static int do_wp_page(struct mm_struct *
 	/*
 	 * Ok, we need to copy. Oh, well..
 	 */
-	page_cache_get(old_page);
+	if (!PageReserved(old_page))
+		page_cache_get(old_page);
 	spin_unlock(&mm->page_table_lock);
 
 	if (unlikely(anon_vma_prepare(vma)))