[PATCH 04/14] page-replace-activate_page.patch

[Peter Zijlstra]

From: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>

page-replace interface function:
  page_replace_activate()

This function will modify the page state for a reference action.

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

 include/linux/mm_page_replace.h |    4 ++++
 mm/vmscan.c                     |    3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

Index: linux-2.6-git/include/linux/mm_page_replace.h
===================================================================
--- linux-2.6-git.orig/include/linux/mm_page_replace.h	2005-12-10 17:13:56.000000000 +0100
+++ linux-2.6-git/include/linux/mm_page_replace.h	2005-12-10 18:19:30.000000000 +0100
@@ -7,6 +7,10 @@
 #include <linux/mm.h>
 
 void __page_replace_insert(struct zone *, struct page *);
+static inline void page_replace_activate(struct page *page)
+{
+	SetPageActive(page);
+}
 
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_PAGE_REPLACE_H */
Index: linux-2.6-git/mm/vmscan.c
===================================================================
--- linux-2.6-git.orig/mm/vmscan.c	2005-12-10 17:13:57.000000000 +0100
+++ linux-2.6-git/mm/vmscan.c	2005-12-10 18:19:34.000000000 +0100
@@ -33,6 +33,7 @@
 #include <linux/cpuset.h>
 #include <linux/notifier.h>
 #include <linux/rwsem.h>
+#include <linux/mm_page_replace.h>
 
 #include <asm/tlbflush.h>
 #include <asm/div64.h>
@@ -573,7 +574,7 @@ static int shrink_list(struct list_head 
 
 		switch(try_pageout(page, sc)) {
 		case PAGEOUT_ACTIVATE:
-			SetPageActive(page);
+			page_replace_activate(page);
 			pgactivate++;
 			/* fall through */
 		case PAGEOUT_KEEP:
-
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