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Subject[RFC3 13/14] Remove get_page_state functions
Remove obsolate page_state functions

We can remove all the get_page_state related functions after all the basic
page state variables have been moved to the zone based scheme.

Signed-off-by: Christoph Lameter <clameter@sgi.com>

Index: linux-2.6.15-rc5-mm2/include/linux/page-flags.h
===================================================================
--- linux-2.6.15-rc5-mm2.orig/include/linux/page-flags.h 2005-12-14 15:37:43.000000000 -0800
+++ linux-2.6.15-rc5-mm2/include/linux/page-flags.h 2005-12-14 15:39:22.000000000 -0800
@@ -82,8 +82,6 @@
* allowed.
*/
struct page_state {
-#define GET_PAGE_STATE_LAST xxx
-
/*
* The below are zeroed by get_page_state(). Use get_full_page_state()
* to add up all these.
@@ -136,8 +134,6 @@ struct page_state {
unsigned long nr_bounce; /* pages for bounce buffers */
};

-extern void get_page_state(struct page_state *ret);
-extern void get_page_state_node(struct page_state *ret, int node);
extern void get_full_page_state(struct page_state *ret);
extern unsigned long __read_page_state(unsigned long offset);
extern void __mod_page_state(unsigned long offset, unsigned long delta);
Index: linux-2.6.15-rc5-mm2/drivers/base/node.c
===================================================================
--- linux-2.6.15-rc5-mm2.orig/drivers/base/node.c 2005-12-14 15:35:38.000000000 -0800
+++ linux-2.6.15-rc5-mm2/drivers/base/node.c 2005-12-14 15:39:22.000000000 -0800
@@ -39,7 +39,6 @@ static ssize_t node_read_meminfo(struct
int n;
int nid = dev->id;
struct sysinfo i;
- struct page_state ps;
unsigned long inactive;
unsigned long active;
unsigned long free;
@@ -47,7 +46,6 @@ static ssize_t node_read_meminfo(struct
unsigned long nr[NR_STAT_ITEMS];

si_meminfo_node(&i, nid);
- get_page_state_node(&ps, nid);
__get_zone_counts(&active, &inactive, &free, NODE_DATA(nid));
for (j = 0; j < NR_STAT_ITEMS; j++)
nr[j] = node_page_state(nid, j);
Index: linux-2.6.15-rc5-mm2/arch/i386/mm/pgtable.c
===================================================================
--- linux-2.6.15-rc5-mm2.orig/arch/i386/mm/pgtable.c 2005-12-14 15:35:38.000000000 -0800
+++ linux-2.6.15-rc5-mm2/arch/i386/mm/pgtable.c 2005-12-14 15:39:22.000000000 -0800
@@ -30,7 +30,6 @@ void show_mem(void)
struct page *page;
pg_data_t *pgdat;
unsigned long i;
- struct page_state ps;
unsigned long flags;

printk(KERN_INFO "Mem-info:\n");
@@ -58,7 +57,6 @@ void show_mem(void)
printk(KERN_INFO "%d pages shared\n", shared);
printk(KERN_INFO "%d pages swap cached\n", cached);

- get_page_state(&ps);
printk(KERN_INFO "%lu pages dirty\n", global_page_state(NR_DIRTY));
printk(KERN_INFO "%lu pages writeback\n", global_page_state(NR_WRITEBACK));
printk(KERN_INFO "%lu pages mapped\n", ps.nr_mapped);
Index: linux-2.6.15-rc5-mm2/mm/swap_prefetch.c
===================================================================
--- linux-2.6.15-rc5-mm2.orig/mm/swap_prefetch.c 2005-12-14 15:37:43.000000000 -0800
+++ linux-2.6.15-rc5-mm2/mm/swap_prefetch.c 2005-12-14 15:39:22.000000000 -0800
@@ -274,7 +274,6 @@ static inline unsigned long prefetch_pag
*/
static int prefetch_suitable(void)
{
- struct page_state ps;
unsigned long pending_writes, limit;
struct zone *z;
int ret = 0;
@@ -312,8 +311,6 @@ static int prefetch_suitable(void)
} else
last_free = temp_free;

- get_page_state(&ps);
-
/* We shouldn't prefetch when we are doing writeback */
if (global_page_state(NR_WRITEBACK))
goto out;
Index: linux-2.6.15-rc5-mm2/mm/page_alloc.c
===================================================================
--- linux-2.6.15-rc5-mm2.orig/mm/page_alloc.c 2005-12-14 15:37:54.000000000 -0800
+++ linux-2.6.15-rc5-mm2/mm/page_alloc.c 2005-12-14 15:39:22.000000000 -0800
@@ -1608,28 +1608,6 @@ static void __get_page_state(struct page
}
}

-void get_page_state_node(struct page_state *ret, int node)
-{
- int nr;
- cpumask_t mask = node_to_cpumask(node);
-
- nr = offsetof(struct page_state, GET_PAGE_STATE_LAST);
- nr /= sizeof(unsigned long);
-
- __get_page_state(ret, nr+1, &mask);
-}
-
-void get_page_state(struct page_state *ret)
-{
- int nr;
- cpumask_t mask = CPU_MASK_ALL;
-
- nr = offsetof(struct page_state, GET_PAGE_STATE_LAST);
- nr /= sizeof(unsigned long);
-
- __get_page_state(ret, nr + 1, &mask);
-}
-
void get_full_page_state(struct page_state *ret)
{
cpumask_t mask = CPU_MASK_ALL;
@@ -1737,7 +1715,6 @@ void si_meminfo_node(struct sysinfo *val
*/
void show_free_areas(void)
{
- struct page_state ps;
int cpu, temperature;
unsigned long active;
unsigned long inactive;
@@ -1769,7 +1746,6 @@ void show_free_areas(void)
}
}

- get_page_state(&ps);
get_zone_counts(&active, &inactive, &free);

printk("Free pages: %11ukB (%ukB HighMem)\n",
Index: linux-2.6.15-rc5-mm2/fs/proc/proc_misc.c
===================================================================
--- linux-2.6.15-rc5-mm2.orig/fs/proc/proc_misc.c 2005-12-14 15:35:38.000000000 -0800
+++ linux-2.6.15-rc5-mm2/fs/proc/proc_misc.c 2005-12-14 15:39:22.000000000 -0800
@@ -120,7 +120,6 @@ static int meminfo_read_proc(char *page,
{
struct sysinfo i;
int len;
- struct page_state ps;
unsigned long inactive;
unsigned long active;
unsigned long free;
@@ -129,7 +128,6 @@ static int meminfo_read_proc(char *page,
struct vmalloc_info vmi;
long cached;

- get_page_state(&ps);
get_zone_counts(&active, &inactive, &free);

/*
-
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