diff -urN -X dontdiff linux-2.4.0/mm/page_alloc.c markhe-2.4.0/mm/page_alloc.c
--- linux-2.4.0/mm/page_alloc.c	Wed Jan  3 17:59:06 2001
+++ markhe-2.4.0/mm/page_alloc.c	Mon Jan 15 15:35:14 2001
@@ -583,6 +583,27 @@
 }
 
 /*
+ *	Free pages in zone "type", and the zones below it.
+ */
+unsigned int nr_free_pages_zone (int type)
+{
+	unsigned int sum;
+	zone_t *zone;
+	pg_data_t *pgdat = pgdat_list;
+
+	if (type >= MAX_NR_ZONES)
+		BUG();
+
+	sum = 0;
+	while (pgdat) {
+		for (zone = pgdat->node_zones; zone < pgdat->node_zones + type; zone++)
+			sum += zone->free_pages;
+		pgdat = pgdat->node_next;
+	}
+	return sum;
+}
+
+/*
  * Total amount of inactive_clean (allocatable) RAM:
  */
 unsigned int nr_inactive_clean_pages (void)
@@ -600,6 +621,25 @@
 	return sum;
 }
 
+unsigned int nr_inactive_clean_pages_zone(int type)
+{
+	unsigned int sum;
+	zone_t *zone;
+	pg_data_t *pgdat = pgdat_list;
+
+	if (type >= MAX_NR_ZONES)
+		BUG();
+	type++;
+
+	sum = 0;
+	while (pgdat) {
+		for (zone = pgdat->node_zones; zone < pgdat->node_zones + type; zone++)
+			sum += zone->inactive_clean_pages;
+		pgdat = pgdat->node_next;
+	}
+	return sum;
+}
+
 /*
  * Amount of free RAM allocatable as buffer memory:
  */
@@ -607,9 +647,9 @@
 {
 	unsigned int sum;
 
-	sum = nr_free_pages();
-	sum += nr_inactive_clean_pages();
-	sum += nr_inactive_dirty_pages;
+	sum = nr_free_pages_zone(ZONE_NORMAL);
+	sum += nr_inactive_clean_pages_zone(ZONE_NORMAL);
+	sum += nr_inactive_dirty_pages;	/* XXX */
 
 	/*
 	 * Keep our write behind queue filled, even if