Commit 9328b8fa authored by Nick Piggin's avatar Nick Piggin Committed by Linus Torvalds
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[PATCH] mm: dma32 zone statistics



Add dma32 to zone statistics.  Also attempt to arrange struct page_state a
bit better (visually).

Signed-off-by: default avatarNick Piggin <npiggin@suse.de>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 7756b9e4
......@@ -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;
......
......@@ -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
......
......@@ -2277,32 +2277,40 @@ static char *vmstat_text[] = {
"pgpgout",
"pswpin",
"pswpout",
"pgalloc_high",
"pgalloc_high",
"pgalloc_normal",
"pgalloc_dma32",
"pgalloc_dma",
"pgfree",
"pgactivate",
"pgdeactivate",
"pgfault",
"pgmajfault",
"pgrefill_high",
"pgrefill_normal",
"pgrefill_dma32",
"pgrefill_dma",
"pgsteal_high",
"pgsteal_normal",
"pgsteal_dma32",
"pgsteal_dma",
"pgscan_kswapd_high",
"pgscan_kswapd_normal",
"pgscan_kswapd_dma32",
"pgscan_kswapd_dma",
"pgscan_direct_high",
"pgscan_direct_normal",
"pgscan_direct_dma32",
"pgscan_direct_dma",
"pginodesteal",
"pginodesteal",
"slabs_scanned",
"kswapd_steal",
"kswapd_inodesteal",
......
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