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-rw-r--r--mm/page_alloc.c343
1 files changed, 186 insertions, 157 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index fe14a8c87fc..fd47494cb98 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -36,6 +36,7 @@
#include <linux/memory_hotplug.h>
#include <linux/nodemask.h>
#include <linux/vmalloc.h>
+#include <linux/mempolicy.h>
#include <asm/tlbflush.h>
#include "internal.h"
@@ -53,6 +54,8 @@ unsigned long totalram_pages __read_mostly;
unsigned long totalhigh_pages __read_mostly;
long nr_swap_pages;
+static void fastcall free_hot_cold_page(struct page *page, int cold);
+
/*
* results with 256, 32 in the lowmem_reserve sysctl:
* 1G machine -> (16M dma, 800M-16M normal, 1G-800M high)
@@ -81,6 +84,7 @@ int min_free_kbytes = 1024;
unsigned long __initdata nr_kernel_pages;
unsigned long __initdata nr_all_pages;
+#ifdef CONFIG_DEBUG_VM
static int page_outside_zone_boundaries(struct zone *zone, struct page *page)
{
int ret = 0;
@@ -122,16 +126,23 @@ static int bad_range(struct zone *zone, struct page *page)
return 0;
}
-static void bad_page(const char *function, struct page *page)
+#else
+static inline int bad_range(struct zone *zone, struct page *page)
+{
+ return 0;
+}
+#endif
+
+static void bad_page(struct page *page)
{
- printk(KERN_EMERG "Bad page state at %s (in process '%s', page %p)\n",
- function, current->comm, page);
- printk(KERN_EMERG "flags:0x%0*lx mapping:%p mapcount:%d count:%d\n",
- (int)(2*sizeof(unsigned long)), (unsigned long)page->flags,
- page->mapping, page_mapcount(page), page_count(page));
- printk(KERN_EMERG "Backtrace:\n");
+ printk(KERN_EMERG "Bad page state in process '%s'\n"
+ "page:%p flags:0x%0*lx mapping:%p mapcount:%d count:%d\n"
+ "Trying to fix it up, but a reboot is needed\n"
+ "Backtrace:\n",
+ current->comm, page, (int)(2*sizeof(unsigned long)),
+ (unsigned long)page->flags, page->mapping,
+ page_mapcount(page), page_count(page));
dump_stack();
- printk(KERN_EMERG "Trying to fix it up, but a reboot is needed\n");
page->flags &= ~(1 << PG_lru |
1 << PG_private |
1 << PG_locked |
@@ -184,19 +195,15 @@ static void destroy_compound_page(struct page *page, unsigned long order)
int i;
int nr_pages = 1 << order;
- if (!PageCompound(page))
- return;
-
- if (page[1].index != order)
- bad_page(__FUNCTION__, page);
+ if (unlikely(page[1].index != order))
+ bad_page(page);
for (i = 0; i < nr_pages; i++) {
struct page *p = page + i;
- if (!PageCompound(p))
- bad_page(__FUNCTION__, page);
- if (page_private(p) != (unsigned long)page)
- bad_page(__FUNCTION__, page);
+ if (unlikely(!PageCompound(p) |
+ (page_private(p) != (unsigned long)page)))
+ bad_page(page);
ClearPageCompound(p);
}
}
@@ -255,14 +262,20 @@ __find_combined_index(unsigned long page_idx, unsigned int order)
/*
* This function checks whether a page is free && is the buddy
* we can do coalesce a page and its buddy if
- * (a) the buddy is free &&
- * (b) the buddy is on the buddy system &&
- * (c) a page and its buddy have the same order.
+ * (a) the buddy is not in a hole &&
+ * (b) the buddy is free &&
+ * (c) the buddy is on the buddy system &&
+ * (d) a page and its buddy have the same order.
* for recording page's order, we use page_private(page) and PG_private.
*
*/
static inline int page_is_buddy(struct page *page, int order)
{
+#ifdef CONFIG_HOLES_IN_ZONE
+ if (!pfn_valid(page_to_pfn(page)))
+ return 0;
+#endif
+
if (PagePrivate(page) &&
(page_order(page) == order) &&
page_count(page) == 0)
@@ -300,7 +313,7 @@ static inline void __free_pages_bulk (struct page *page,
unsigned long page_idx;
int order_size = 1 << order;
- if (unlikely(order))
+ if (unlikely(PageCompound(page)))
destroy_compound_page(page, order);
page_idx = page_to_pfn(page) & ((1 << MAX_ORDER) - 1);
@@ -314,17 +327,15 @@ static inline void __free_pages_bulk (struct page *page,
struct free_area *area;
struct page *buddy;
- combined_idx = __find_combined_index(page_idx, order);
buddy = __page_find_buddy(page, page_idx, order);
-
- if (bad_range(zone, buddy))
- break;
if (!page_is_buddy(buddy, order))
break; /* Move the buddy up one level. */
+
list_del(&buddy->lru);
area = zone->free_area + order;
area->nr_free--;
rmv_page_order(buddy);
+ combined_idx = __find_combined_index(page_idx, order);
page = page + (combined_idx - page_idx);
page_idx = combined_idx;
order++;
@@ -334,11 +345,11 @@ static inline void __free_pages_bulk (struct page *page,
zone->free_area[order].nr_free++;
}
-static inline int free_pages_check(const char *function, struct page *page)
+static inline int free_pages_check(struct page *page)
{
- if ( page_mapcount(page) ||
- page->mapping != NULL ||
- page_count(page) != 0 ||
+ if (unlikely(page_mapcount(page) |
+ (page->mapping != NULL) |
+ (page_count(page) != 0) |
(page->flags & (
1 << PG_lru |
1 << PG_private |
@@ -348,8 +359,8 @@ static inline int free_pages_check(const char *function, struct page *page)
1 << PG_slab |
1 << PG_swapcache |
1 << PG_writeback |
- 1 << PG_reserved )))
- bad_page(function, page);
+ 1 << PG_reserved ))))
+ bad_page(page);
if (PageDirty(page))
__ClearPageDirty(page);
/*
@@ -375,11 +386,10 @@ static int
free_pages_bulk(struct zone *zone, int count,
struct list_head *list, unsigned int order)
{
- unsigned long flags;
struct page *page = NULL;
int ret = 0;
- spin_lock_irqsave(&zone->lock, flags);
+ spin_lock(&zone->lock);
zone->all_unreclaimable = 0;
zone->pages_scanned = 0;
while (!list_empty(list) && count--) {
@@ -389,12 +399,13 @@ free_pages_bulk(struct zone *zone, int count,
__free_pages_bulk(page, zone, order);
ret++;
}
- spin_unlock_irqrestore(&zone->lock, flags);
+ spin_unlock(&zone->lock);
return ret;
}
void __free_pages_ok(struct page *page, unsigned int order)
{
+ unsigned long flags;
LIST_HEAD(list);
int i;
int reserved = 0;
@@ -408,14 +419,49 @@ void __free_pages_ok(struct page *page, unsigned int order)
#endif
for (i = 0 ; i < (1 << order) ; ++i)
- reserved += free_pages_check(__FUNCTION__, page + i);
+ reserved += free_pages_check(page + i);
if (reserved)
return;
list_add(&page->lru, &list);
- mod_page_state(pgfree, 1 << order);
kernel_map_pages(page, 1<<order, 0);
+ local_irq_save(flags);
+ __mod_page_state(pgfree, 1 << order);
free_pages_bulk(page_zone(page), 1, &list, order);
+ local_irq_restore(flags);
+}
+
+/*
+ * permit the bootmem allocator to evade page validation on high-order frees
+ */
+void fastcall __init __free_pages_bootmem(struct page *page, unsigned int order)
+{
+ if (order == 0) {
+ __ClearPageReserved(page);
+ set_page_count(page, 0);
+
+ free_hot_cold_page(page, 0);
+ } else {
+ LIST_HEAD(list);
+ int loop;
+
+ for (loop = 0; loop < BITS_PER_LONG; loop++) {
+ struct page *p = &page[loop];
+
+ if (loop + 16 < BITS_PER_LONG)
+ prefetchw(p + 16);
+ __ClearPageReserved(p);
+ set_page_count(p, 0);
+ }
+
+ arch_free_page(page, order);
+
+ mod_page_state(pgfree, 1 << order);
+
+ list_add(&page->lru, &list);
+ kernel_map_pages(page, 1 << order, 0);
+ free_pages_bulk(page_zone(page), 1, &list, order);
+ }
}
@@ -433,8 +479,7 @@ void __free_pages_ok(struct page *page, unsigned int order)
*
* -- wli
*/
-static inline struct page *
-expand(struct zone *zone, struct page *page,
+static inline void expand(struct zone *zone, struct page *page,
int low, int high, struct free_area *area)
{
unsigned long size = 1 << high;
@@ -448,24 +493,6 @@ expand(struct zone *zone, struct page *page,
area->nr_free++;
set_page_order(&page[size], high);
}
- return page;
-}
-
-void set_page_refs(struct page *page, int order)
-{
-#ifdef CONFIG_MMU
- set_page_count(page, 1);
-#else
- int i;
-
- /*
- * We need to reference all the pages for this order, otherwise if
- * anyone accesses one of the pages with (get/put) it will be freed.
- * - eg: access_process_vm()
- */
- for (i = 0; i < (1 << order); i++)
- set_page_count(page + i, 1);
-#endif /* CONFIG_MMU */
}
/*
@@ -473,9 +500,9 @@ void set_page_refs(struct page *page, int order)
*/
static int prep_new_page(struct page *page, int order)
{
- if ( page_mapcount(page) ||
- page->mapping != NULL ||
- page_count(page) != 0 ||
+ if (unlikely(page_mapcount(page) |
+ (page->mapping != NULL) |
+ (page_count(page) != 0) |
(page->flags & (
1 << PG_lru |
1 << PG_private |
@@ -486,8 +513,8 @@ static int prep_new_page(struct page *page, int order)
1 << PG_slab |
1 << PG_swapcache |
1 << PG_writeback |
- 1 << PG_reserved )))
- bad_page(__FUNCTION__, page);
+ 1 << PG_reserved ))))
+ bad_page(page);
/*
* For now, we report if PG_reserved was found set, but do not
@@ -525,7 +552,8 @@ static struct page *__rmqueue(struct zone *zone, unsigned int order)
rmv_page_order(page);
area->nr_free--;
zone->free_pages -= 1UL << order;
- return expand(zone, page, order, current_order, area);
+ expand(zone, page, order, current_order, area);
+ return page;
}
return NULL;
@@ -539,21 +567,17 @@ static struct page *__rmqueue(struct zone *zone, unsigned int order)
static int rmqueue_bulk(struct zone *zone, unsigned int order,
unsigned long count, struct list_head *list)
{
- unsigned long flags;
int i;
- int allocated = 0;
- struct page *page;
- spin_lock_irqsave(&zone->lock, flags);
+ spin_lock(&zone->lock);
for (i = 0; i < count; ++i) {
- page = __rmqueue(zone, order);
- if (page == NULL)
+ struct page *page = __rmqueue(zone, order);
+ if (unlikely(page == NULL))
break;
- allocated++;
list_add_tail(&page->lru, list);
}
- spin_unlock_irqrestore(&zone->lock, flags);
- return allocated;
+ spin_unlock(&zone->lock);
+ return i;
}
#ifdef CONFIG_NUMA
@@ -589,6 +613,7 @@ void drain_remote_pages(void)
#if defined(CONFIG_PM) || defined(CONFIG_HOTPLUG_CPU)
static void __drain_pages(unsigned int cpu)
{
+ unsigned long flags;
struct zone *zone;
int i;
@@ -600,8 +625,10 @@ static void __drain_pages(unsigned int cpu)
struct per_cpu_pages *pcp;
pcp = &pset->pcp[i];
+ local_irq_save(flags);
pcp->count -= free_pages_bulk(zone, pcp->count,
&pcp->list, 0);
+ local_irq_restore(flags);
}
}
}
@@ -647,18 +674,14 @@ void drain_local_pages(void)
}
#endif /* CONFIG_PM */
-static void zone_statistics(struct zonelist *zonelist, struct zone *z)
+static void zone_statistics(struct zonelist *zonelist, struct zone *z, int cpu)
{
#ifdef CONFIG_NUMA
- unsigned long flags;
- int cpu;
pg_data_t *pg = z->zone_pgdat;
pg_data_t *orig = zonelist->zones[0]->zone_pgdat;
struct per_cpu_pageset *p;
- local_irq_save(flags);
- cpu = smp_processor_id();
- p = zone_pcp(z,cpu);
+ p = zone_pcp(z, cpu);
if (pg == orig) {
p->numa_hit++;
} else {
@@ -669,14 +692,12 @@ static void zone_statistics(struct zonelist *zonelist, struct zone *z)
p->local_node++;
else
p->other_node++;
- local_irq_restore(flags);
#endif
}
/*
* Free a 0-order page
*/
-static void FASTCALL(free_hot_cold_page(struct page *page, int cold));
static void fastcall free_hot_cold_page(struct page *page, int cold)
{
struct zone *zone = page_zone(page);
@@ -687,14 +708,14 @@ static void fastcall free_hot_cold_page(struct page *page, int cold)
if (PageAnon(page))
page->mapping = NULL;
- if (free_pages_check(__FUNCTION__, page))
+ if (free_pages_check(page))
return;
- inc_page_state(pgfree);
kernel_map_pages(page, 1, 0);
pcp = &zone_pcp(zone, get_cpu())->pcp[cold];
local_irq_save(flags);
+ __inc_page_state(pgfree);
list_add(&page->lru, &pcp->list);
pcp->count++;
if (pcp->count >= pcp->high)
@@ -727,49 +748,58 @@ static inline void prep_zero_page(struct page *page, int order, gfp_t gfp_flags)
* we cheat by calling it from here, in the order > 0 path. Saves a branch
* or two.
*/
-static struct page *
-buffered_rmqueue(struct zone *zone, int order, gfp_t gfp_flags)
+static struct page *buffered_rmqueue(struct zonelist *zonelist,
+ struct zone *zone, int order, gfp_t gfp_flags)
{
unsigned long flags;
struct page *page;
int cold = !!(gfp_flags & __GFP_COLD);
+ int cpu;
again:
+ cpu = get_cpu();
if (order == 0) {
struct per_cpu_pages *pcp;
- page = NULL;
- pcp = &zone_pcp(zone, get_cpu())->pcp[cold];
+ pcp = &zone_pcp(zone, cpu)->pcp[cold];
local_irq_save(flags);
- if (pcp->count <= pcp->low)
+ if (!pcp->count) {
pcp->count += rmqueue_bulk(zone, 0,
pcp->batch, &pcp->list);
- if (pcp->count) {
- page = list_entry(pcp->list.next, struct page, lru);
- list_del(&page->lru);
- pcp->count--;
+ if (unlikely(!pcp->count))
+ goto failed;
}
- local_irq_restore(flags);
- put_cpu();
+ page = list_entry(pcp->list.next, struct page, lru);
+ list_del(&page->lru);
+ pcp->count--;
} else {
spin_lock_irqsave(&zone->lock, flags);
page = __rmqueue(zone, order);
- spin_unlock_irqrestore(&zone->lock, flags);
+ spin_unlock(&zone->lock);
+ if (!page)
+ goto failed;
}
- if (page != NULL) {
- BUG_ON(bad_range(zone, page));
- mod_page_state_zone(zone, pgalloc, 1 << order);
- if (prep_new_page(page, order))
- goto again;
+ __mod_page_state_zone(zone, pgalloc, 1 << order);
+ zone_statistics(zonelist, zone, cpu);
+ local_irq_restore(flags);
+ put_cpu();
+
+ BUG_ON(bad_range(zone, page));
+ if (prep_new_page(page, order))
+ goto again;
- if (gfp_flags & __GFP_ZERO)
- prep_zero_page(page, order, gfp_flags);
+ if (gfp_flags & __GFP_ZERO)
+ prep_zero_page(page, order, gfp_flags);
- if (order && (gfp_flags & __GFP_COMP))
- prep_compound_page(page, order);
- }
+ if (order && (gfp_flags & __GFP_COMP))
+ prep_compound_page(page, order);
return page;
+
+failed:
+ local_irq_restore(flags);
+ put_cpu();
+ return NULL;
}
#define ALLOC_NO_WATERMARKS 0x01 /* don't check watermarks at all */
@@ -845,9 +875,8 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order,
continue;
}
- page = buffered_rmqueue(*z, order, gfp_mask);
+ page = buffered_rmqueue(zonelist, *z, order, gfp_mask);
if (page) {
- zone_statistics(zonelist, *z);
break;
}
} while (*(++z) != NULL);
@@ -903,8 +932,7 @@ restart:
alloc_flags |= ALLOC_HARDER;
if (gfp_mask & __GFP_HIGH)
alloc_flags |= ALLOC_HIGH;
- if (wait)
- alloc_flags |= ALLOC_CPUSET;
+ alloc_flags |= ALLOC_CPUSET;
/*
* Go through the zonelist again. Let __GFP_HIGH and allocations
@@ -926,7 +954,7 @@ restart:
nofail_alloc:
/* go through the zonelist yet again, ignoring mins */
page = get_page_from_freelist(gfp_mask, order,
- zonelist, ALLOC_NO_WATERMARKS|ALLOC_CPUSET);
+ zonelist, ALLOC_NO_WATERMARKS);
if (page)
goto got_pg;
if (gfp_mask & __GFP_NOFAIL) {
@@ -1171,12 +1199,11 @@ EXPORT_SYMBOL(nr_pagecache);
DEFINE_PER_CPU(long, nr_pagecache_local) = 0;
#endif
-void __get_page_state(struct page_state *ret, int nr, cpumask_t *cpumask)
+static void __get_page_state(struct page_state *ret, int nr, cpumask_t *cpumask)
{
int cpu = 0;
memset(ret, 0, sizeof(*ret));
- cpus_and(*cpumask, *cpumask, cpu_online_map);
cpu = first_cpu(*cpumask);
while (cpu < NR_CPUS) {
@@ -1224,12 +1251,12 @@ void get_full_page_state(struct page_state *ret)
__get_page_state(ret, sizeof(*ret) / sizeof(unsigned long), &mask);
}
-unsigned long __read_page_state(unsigned long offset)
+unsigned long read_page_state_offset(unsigned long offset)
{
unsigned long ret = 0;
int cpu;
- for_each_online_cpu(cpu) {
+ for_each_cpu(cpu) {
unsigned long in;
in = (unsigned long)&per_cpu(page_states, cpu) + offset;
@@ -1238,18 +1265,26 @@ unsigned long __read_page_state(unsigned long offset)
return ret;
}
-void __mod_page_state(unsigned long offset, unsigned long delta)
+void __mod_page_state_offset(unsigned long offset, unsigned long delta)
+{
+ void *ptr;
+
+ ptr = &__get_cpu_var(page_states);
+ *(unsigned long *)(ptr + offset) += delta;
+}
+EXPORT_SYMBOL(__mod_page_state_offset);
+
+void mod_page_state_offset(unsigned long offset, unsigned long delta)
{
unsigned long flags;
- void* ptr;
+ void *ptr;
local_irq_save(flags);
ptr = &__get_cpu_var(page_states);
- *(unsigned long*)(ptr + offset) += delta;
+ *(unsigned long *)(ptr + offset) += delta;
local_irq_restore(flags);
}
-
-EXPORT_SYMBOL(__mod_page_state);
+EXPORT_SYMBOL(mod_page_state_offset);
void __get_zone_counts(unsigned long *active, unsigned long *inactive,
unsigned long *free, struct pglist_data *pgdat)
@@ -1335,7 +1370,7 @@ void show_free_areas(void)
show_node(zone);
printk("%s per-cpu:", zone->name);
- if (!zone->present_pages) {
+ if (!populated_zone(zone)) {
printk(" empty\n");
continue;
} else
@@ -1347,10 +1382,9 @@ void show_free_areas(void)
pageset = zone_pcp(zone, cpu);
for (temperature = 0; temperature < 2; temperature++)
- printk("cpu %d %s: low %d, high %d, batch %d used:%d\n",
+ printk("cpu %d %s: high %d, batch %d used:%d\n",
cpu,
temperature ? "cold" : "hot",
- pageset->pcp[temperature].low,
pageset->pcp[temperature].high,
pageset->pcp[temperature].batch,
pageset->pcp[temperature].count);
@@ -1413,7 +1447,7 @@ void show_free_areas(void)
show_node(zone);
printk("%s: ", zone->name);
- if (!zone->present_pages) {
+ if (!populated_zone(zone)) {
printk("empty\n");
continue;
}
@@ -1433,36 +1467,29 @@ void show_free_areas(void)
/*
* Builds allocation fallback zone lists.
+ *
+ * Add all populated zones of a node to the zonelist.
*/
-static int __init build_zonelists_node(pg_data_t *pgdat, struct zonelist *zonelist, int j, int k)
-{
- switch (k) {
- struct zone *zone;
- default:
- BUG();
- case ZONE_HIGHMEM:
- zone = pgdat->node_zones + ZONE_HIGHMEM;
- if (zone->present_pages) {
+static int __init build_zonelists_node(pg_data_t *pgdat,
+ struct zonelist *zonelist, int nr_zones, int zone_type)
+{
+ struct zone *zone;
+
+ BUG_ON(zone_type > ZONE_HIGHMEM);
+
+ do {
+ zone = pgdat->node_zones + zone_type;
+ if (populated_zone(zone)) {
#ifndef CONFIG_HIGHMEM
- BUG();
+ BUG_ON(zone_type > ZONE_NORMAL);
#endif
- zonelist->zones[j++] = zone;
+ zonelist->zones[nr_zones++] = zone;
+ check_highest_zone(zone_type);
}
- case ZONE_NORMAL:
- zone = pgdat->node_zones + ZONE_NORMAL;
- if (zone->present_pages)
- zonelist->zones[j++] = zone;
- case ZONE_DMA32:
- zone = pgdat->node_zones + ZONE_DMA32;
- if (zone->present_pages)
- zonelist->zones[j++] = zone;
- case ZONE_DMA:
- zone = pgdat->node_zones + ZONE_DMA;
- if (zone->present_pages)
- zonelist->zones[j++] = zone;
- }
+ zone_type--;
- return j;
+ } while (zone_type >= 0);
+ return nr_zones;
}
static inline int highest_zone(int zone_bits)
@@ -1709,8 +1736,6 @@ void __devinit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
for (pfn = start_pfn; pfn < end_pfn; pfn++, page++) {
if (!early_pfn_valid(pfn))
continue;
- if (!early_pfn_in_nid(pfn, nid))
- continue;
page = pfn_to_page(pfn);
set_page_links(page, zone, nid, pfn);
set_page_count(page, 1);
@@ -1794,14 +1819,12 @@ inline void setup_pageset(struct per_cpu_pageset *p, unsigned long batch)
pcp = &p->pcp[0]; /* hot */
pcp->count = 0;
- pcp->low = 0;
pcp->high = 6 * batch;
pcp->batch = max(1UL, 1 * batch);
INIT_LIST_HEAD(&pcp->list);
pcp = &p->pcp[1]; /* cold*/
pcp->count = 0;
- pcp->low = 0;
pcp->high = 2 * batch;
pcp->batch = max(1UL, batch/2);
INIT_LIST_HEAD(&pcp->list);
@@ -2116,7 +2139,7 @@ static int frag_show(struct seq_file *m, void *arg)
int order;
for (zone = node_zones; zone - node_zones < MAX_NR_ZONES; ++zone) {
- if (!zone->present_pages)
+ if (!populated_zone(zone))
continue;
spin_lock_irqsave(&zone->lock, flags);
@@ -2149,7 +2172,7 @@ static int zoneinfo_show(struct seq_file *m, void *arg)
for (zone = node_zones; zone - node_zones < MAX_NR_ZONES; zone++) {
int i;
- if (!zone->present_pages)
+ if (!populated_zone(zone))
continue;
spin_lock_irqsave(&zone->lock, flags);
@@ -2197,12 +2220,10 @@ static int zoneinfo_show(struct seq_file *m, void *arg)
seq_printf(m,
"\n cpu: %i pcp: %i"
"\n count: %i"
- "\n low: %i"
"\n high: %i"
"\n batch: %i",
i, j,
pageset->pcp[j].count,
- pageset->pcp[j].low,
pageset->pcp[j].high,
pageset->pcp[j].batch);
}
@@ -2257,32 +2278,40 @@ 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",