--- from-0002/include/linux/mmzone.h
+++ to-work/include/linux/mmzone.h	2005-10-24 10:43:13.000000000 +0900
@@ -151,6 +151,7 @@ struct zone {
 	unsigned long		nr_active;
 	unsigned long		nr_inactive;
 	unsigned long		pages_scanned;	   /* since last reclaim */
+	unsigned long		pages_scanned_total;
 	int			all_unreclaimable; /* All pages pinned */
 
 	/*
--- from-0002/mm/page_alloc.c
+++ to-work/mm/page_alloc.c	2005-10-24 10:51:05.000000000 +0900
@@ -2101,6 +2101,7 @@ static int zoneinfo_show(struct seq_file
 			   "\n        active   %lu"
 			   "\n        inactive %lu"
 			   "\n        scanned  %lu (a: %lu i: %lu)"
+			   "\n        tscanned %lu"
 			   "\n        spanned  %lu"
 			   "\n        present  %lu",
 			   zone->free_pages,
@@ -2111,6 +2112,7 @@ static int zoneinfo_show(struct seq_file
 			   zone->nr_inactive,
 			   zone->pages_scanned,
 			   zone->nr_scan_active, zone->nr_scan_inactive,
+			   zone->pages_scanned_total,
 			   zone->spanned_pages,
 			   zone->present_pages);
 		seq_printf(m,
--- from-0002/mm/vmscan.c
+++ to-work/mm/vmscan.c	2005-10-24 10:44:09.000000000 +0900
@@ -633,6 +633,7 @@ static void shrink_cache(struct zone *zo
 					     &page_list, &nr_scan);
 		zone->nr_inactive -= nr_taken;
 		zone->pages_scanned += nr_scan;
+		zone->pages_scanned_total += nr_scan;
 		spin_unlock_irq(&zone->lru_lock);
 
 		if (nr_taken == 0)
@@ -713,6 +714,7 @@ refill_inactive_zone(struct zone *zone, 
 	pgmoved = isolate_lru_pages(nr_pages, &zone->active_list,
 				    &l_hold, &pgscanned);
 	zone->pages_scanned += pgscanned;
+	zone->pages_scanned_total += pgscanned;
 	zone->nr_active -= pgmoved;
 	spin_unlock_irq(&zone->lru_lock);