[PATCH 13/14] page-replace-init.patch

[Peter Zijlstra <a.p.zijlstra@chello.nl>]

From: Peter Zijlstra <a.p.zijlstra@chello.nl>

page-replace interface function:
  page_replace_init_zone()

This function initialized the page replace specific members of
struct zone.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>

 include/linux/mm_page_replace.h |    1 +
 mm/page_alloc.c                 |    6 ++----
 mm/page_replace.c               |    8 ++++++++
 3 files changed, 11 insertions(+), 4 deletions(-)

Index: linux-2.6-git/include/linux/mm_page_replace.h
===================================================================
--- linux-2.6-git.orig/include/linux/mm_page_replace.h
+++ linux-2.6-git/include/linux/mm_page_replace.h
@@ -38,6 +38,7 @@
 #define prefetchw_prev_lru_page(_page, _base, _field) do { } while (0)
 #endif
 
+void __init page_replace_init_zone(struct zone *);
 void __page_replace_insert(struct zone *, struct page *);
 void page_replace_candidates(struct zone *, int, struct list_head *);
 
Index: linux-2.6-git/mm/page_alloc.c
===================================================================
--- linux-2.6-git.orig/mm/page_alloc.c
+++ linux-2.6-git/mm/page_alloc.c
@@ -36,6 +36,7 @@
 #include <linux/memory_hotplug.h>
 #include <linux/nodemask.h>
 #include <linux/vmalloc.h>
+#include <linux/mm_page_replace.h>
 
 #include <asm/tlbflush.h>
 #include "internal.h"
@@ -2007,11 +2008,7 @@ static void __init free_area_init_core(s
 		zone->temp_priority = zone->prev_priority = DEF_PRIORITY;
 
 		zone_pcp_init(zone);
-		INIT_LIST_HEAD(&zone->active_list);
-		INIT_LIST_HEAD(&zone->inactive_list);
-		zone->nr_scan_active = 0;
-		zone->nr_active = 0;
-		zone->nr_inactive = 0;
+		page_replace_init_zone(zone);
 		atomic_set(&zone->reclaim_in_progress, 0);
 		if (!size)
 			continue;
Index: linux-2.6-git/mm/page_replace.c
===================================================================
--- linux-2.6-git.orig/mm/page_replace.c
+++ linux-2.6-git/mm/page_replace.c
@@ -22,6 +22,15 @@ static int __init page_replace_init(void
 
 module_init(page_replace_init)
 
+void __init page_replace_init_zone(struct zone *zone)
+{
+	INIT_LIST_HEAD(&zone->active_list);
+	INIT_LIST_HEAD(&zone->inactive_list);
+	zone->nr_active = 0;
+	zone->nr_inactive = 0;
+	zone->nr_scan_active = 0;
+}
+
 static inline void
 add_page_to_inactive_list(struct zone *zone, struct page *page)
 {