[Patch] New zone ZONE_EASY_RECLAIM take 4. (mod_page_state info)[7/8]

[Yasunori Goto <y-goto@jp.fujitsu.com>]

This patch is add easy reclaim zone information for mod_page_state().

This is new patch at take 4.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>


--
Index: zone_reclaim/include/linux/page-flags.h
===================================================================
--- zone_reclaim.orig/include/linux/page-flags.h	2005-12-15 19:48:30.000000000 +0900
+++ zone_reclaim/include/linux/page-flags.h	2005-12-15 21:01:09.000000000 +0900
@@ -109,7 +109,8 @@ struct page_state {
 	unsigned long pswpin;		/* swap reads */
 	unsigned long pswpout;		/* swap writes */
 
-	unsigned long pgalloc_high;	/* page allocations */
+	unsigned long pgalloc_easy_reclaim; /* page allocations */
+	unsigned long pgalloc_high;
 	unsigned long pgalloc_normal;
 	unsigned long pgalloc_dma32;
 	unsigned long pgalloc_dma;
@@ -121,22 +122,26 @@ struct page_state {
 	unsigned long pgfault;		/* faults (major+minor) */
 	unsigned long pgmajfault;	/* faults (major only) */
 
-	unsigned long pgrefill_high;	/* inspected in refill_inactive_zone */
+	unsigned long pgrefill_easy_reclaim;/* inspected in refill_inactive_zone */
+	unsigned long pgrefill_high;
 	unsigned long pgrefill_normal;
 	unsigned long pgrefill_dma32;
 	unsigned long pgrefill_dma;
 
-	unsigned long pgsteal_high;	/* total highmem pages reclaimed */
+	unsigned long pgsteal_easy_reclaim; /* total pages reclaimed */
+	unsigned long pgsteal_high;
 	unsigned long pgsteal_normal;
 	unsigned long pgsteal_dma32;
 	unsigned long pgsteal_dma;
 
-	unsigned long pgscan_kswapd_high;/* total highmem pages scanned */
+	unsigned long pgscan_kswapd_easy_reclaim; /* total pages scanned */
+	unsigned long pgscan_kswapd_high;
 	unsigned long pgscan_kswapd_normal;
 	unsigned long pgscan_kswapd_dma32;
 	unsigned long pgscan_kswapd_dma;
 
-	unsigned long pgscan_direct_high;/* total highmem pages scanned */
+	unsigned long pgscan_direct_easy_reclaim;/* total pages scanned */
+	unsigned long pgscan_direct_high;
 	unsigned long pgscan_direct_normal;
 	unsigned long pgscan_direct_dma32;
 	unsigned long pgscan_direct_dma;
@@ -183,7 +188,9 @@ extern void __mod_page_state_offset(unsi
 #define state_zone_offset(zone, member)					\
 ({									\
 	unsigned offset;						\
-	if (is_highmem(zone))						\
+	if (is_easy_reclaim(zone))					\
+		offset = offsetof(struct page_state, member##_easy_reclaim);\
+	else if (is_highmem(zone))					\
 		offset = offsetof(struct page_state, member##_high);	\
 	else if (is_normal(zone))					\
 		offset = offsetof(struct page_state, member##_normal);	\

-- 
Yasunori Goto 


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