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authorNick Piggin <nickpiggin@yahoo.com.au>2006-01-06 00:11:10 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 08:33:26 -0800
commit9328b8faae922e52073785ed6c1eaa8565648a0e (patch)
tree065034bc534a4997197d26acf1774725159e4e65 /include
parent7756b9e4e321c3c83c7aa5b9532d3e7fd7ddeb4a (diff)
[PATCH] mm: dma32 zone statistics
Add dma32 to zone statistics. Also attempt to arrange struct page_state a bit better (visually). Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mmzone.h11
-rw-r--r--include/linux/page-flags.h38
2 files changed, 35 insertions, 14 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 0d1a5981bb9..8d6caa414c4 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -397,6 +397,7 @@ static inline int is_normal_idx(int idx)
{
return (idx == ZONE_NORMAL);
}
+
/**
* is_highmem - helper function to quickly check if a struct zone is a
* highmem zone or not. This is an attempt to keep references
@@ -413,6 +414,16 @@ static inline int is_normal(struct zone *zone)
return zone == zone->zone_pgdat->node_zones + ZONE_NORMAL;
}
+static inline int is_dma32(struct zone *zone)
+{
+ return zone == zone->zone_pgdat->node_zones + ZONE_DMA32;
+}
+
+static inline int is_dma(struct zone *zone)
+{
+ return zone == zone->zone_pgdat->node_zones + ZONE_DMA;
+}
+
/* These two functions are used to setup the per zone pages min values */
struct ctl_table;
struct file;
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 343083fec25..32d09c8d952 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -97,32 +97,40 @@ struct page_state {
unsigned long pgpgout; /* Disk writes */
unsigned long pswpin; /* swap reads */
unsigned long pswpout; /* swap writes */
- unsigned long pgalloc_high; /* page allocations */
+ unsigned long pgalloc_high; /* page allocations */
unsigned long pgalloc_normal;
+ unsigned long pgalloc_dma32;
unsigned long pgalloc_dma;
+
unsigned long pgfree; /* page freeings */
unsigned long pgactivate; /* pages moved inactive->active */
unsigned long pgdeactivate; /* pages moved active->inactive */
unsigned long pgfault; /* faults (major+minor) */
unsigned long pgmajfault; /* faults (major only) */
+
unsigned long pgrefill_high; /* inspected in refill_inactive_zone */
unsigned long pgrefill_normal;
+ unsigned long pgrefill_dma32;
unsigned long pgrefill_dma;
unsigned long pgsteal_high; /* total highmem pages reclaimed */
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_normal;
-
+ unsigned long pgscan_kswapd_dma32;
unsigned long pgscan_kswapd_dma;
+
unsigned long pgscan_direct_high;/* total highmem pages scanned */
unsigned long pgscan_direct_normal;
+ unsigned long pgscan_direct_dma32;
unsigned long pgscan_direct_dma;
- unsigned long pginodesteal; /* pages reclaimed via inode freeing */
+ unsigned long pginodesteal; /* pages reclaimed via inode freeing */
unsigned long slabs_scanned; /* slab objects scanned */
unsigned long kswapd_steal; /* pages reclaimed by kswapd */
unsigned long kswapd_inodesteal;/* reclaimed via kswapd inode freeing */
@@ -150,17 +158,19 @@ extern void __mod_page_state(unsigned long offset, unsigned long delta);
#define add_page_state(member,delta) mod_page_state(member, (delta))
#define sub_page_state(member,delta) mod_page_state(member, 0UL - (delta))
-#define mod_page_state_zone(zone, member, delta) \
- do { \
- unsigned offset; \
- if (is_highmem(zone)) \
- offset = offsetof(struct page_state, member##_high); \
- else if (is_normal(zone)) \
- offset = offsetof(struct page_state, member##_normal); \
- else \
- offset = offsetof(struct page_state, member##_dma); \
- __mod_page_state(offset, (delta)); \
- } while (0)
+#define mod_page_state_zone(zone, member, delta) \
+ do { \
+ unsigned offset; \
+ if (is_highmem(zone)) \
+ offset = offsetof(struct page_state, member##_high); \
+ else if (is_normal(zone)) \
+ offset = offsetof(struct page_state, member##_normal); \
+ else if (is_dma32(zone)) \
+ offset = offsetof(struct page_state, member##_dma32); \
+ else \
+ offset = offsetof(struct page_state, member##_dma); \
+ __mod_page_state(offset, (delta)); \
+ } while (0)
/*
* Manipulation of page state flags