[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / vmstat.h

#ifndef _LINUX_VMSTAT_H
#define _LINUX_VMSTAT_H

#include <linux/types.h>
#include <linux/percpu.h>
#include <linux/mm.h>
#include <linux/mmzone.h>
#include <asm/atomic.h>

#ifdef CONFIG_ZONE_DMA
#define DMA_ZONE(xx) xx##_DMA,
#else
#define DMA_ZONE(xx)
#endif

#ifdef CONFIG_ZONE_DMA32
#define DMA32_ZONE(xx) xx##_DMA32,
#else
#define DMA32_ZONE(xx)
#endif

#ifdef CONFIG_HIGHMEM
#define HIGHMEM_ZONE(xx) , xx##_HIGH
#else
#define HIGHMEM_ZONE(xx)
#endif


#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL HIGHMEM_ZONE(xx) , xx##_MOVABLE

enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
		FOR_ALL_ZONES(PGALLOC),
		PGFREE, PGACTIVATE, PGDEACTIVATE,
		PGFAULT, PGMAJFAULT,
		FOR_ALL_ZONES(PGREFILL),
		FOR_ALL_ZONES(PGSTEAL),
		FOR_ALL_ZONES(PGSCAN_KSWAPD),
		FOR_ALL_ZONES(PGSCAN_DIRECT),
#ifdef CONFIG_NUMA
		PGSCAN_ZONE_RECLAIM_FAILED,
#endif
		PGINODESTEAL, SLABS_SCANNED, KSWAPD_STEAL, KSWAPD_INODESTEAL,
		KSWAPD_LOW_WMARK_HIT_QUICKLY, KSWAPD_HIGH_WMARK_HIT_QUICKLY,
		KSWAPD_SKIP_CONGESTION_WAIT,
		PAGEOUTRUN, ALLOCSTALL, PGROTATED,
#ifdef CONFIG_COMPACTION
		COMPACTBLOCKS, COMPACTPAGES, COMPACTPAGEFAILED,
		COMPACTSTALL, COMPACTFAIL, COMPACTSUCCESS,
#endif
#ifdef CONFIG_HUGETLB_PAGE
		HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_FAIL,
#endif
		UNEVICTABLE_PGCULLED,	/* culled to noreclaim list */
		UNEVICTABLE_PGSCANNED,	/* scanned for reclaimability */
		UNEVICTABLE_PGRESCUED,	/* rescued from noreclaim list */
		UNEVICTABLE_PGMLOCKED,
		UNEVICTABLE_PGMUNLOCKED,
		UNEVICTABLE_PGCLEARED,	/* on COW, page truncate */
		UNEVICTABLE_PGSTRANDED,	/* unable to isolate on unlock */
		UNEVICTABLE_MLOCKFREED,
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
		THP_FAULT_ALLOC,
		THP_FAULT_FALLBACK,
		THP_COLLAPSE_ALLOC,
		THP_COLLAPSE_ALLOC_FAILED,
		THP_SPLIT,
#endif
		NR_VM_EVENT_ITEMS
};

extern int sysctl_stat_interval;

#ifdef CONFIG_VM_EVENT_COUNTERS
/*
 * Light weight per cpu counter implementation.
 *
 * Counters should only be incremented and no critical kernel component
 * should rely on the counter values.
 *
 * Counters are handled completely inline. On many platforms the code
 * generated will simply be the increment of a global address.
 */

struct vm_event_state {
	unsigned long event[NR_VM_EVENT_ITEMS];
};

DECLARE_PER_CPU(struct vm_event_state, vm_event_states);

static inline void __count_vm_event(enum vm_event_item item)
{
	__this_cpu_inc(vm_event_states.event[item]);
}

static inline void count_vm_event(enum vm_event_item item)
{
	this_cpu_inc(vm_event_states.event[item]);
}

static inline void __count_vm_events(enum vm_event_item item, long delta)
{
	__this_cpu_add(vm_event_states.event[item], delta);
}

static inline void count_vm_events(enum vm_event_item item, long delta)
{
	this_cpu_add(vm_event_states.event[item], delta);
}

extern void all_vm_events(unsigned long *);
#ifdef CONFIG_HOTPLUG
extern void vm_events_fold_cpu(int cpu);
#else
static inline void vm_events_fold_cpu(int cpu)
{
}
#endif

#else

/* Disable counters */
static inline void count_vm_event(enum vm_event_item item)
{
}
static inline void count_vm_events(enum vm_event_item item, long delta)
{
}
static inline void __count_vm_event(enum vm_event_item item)
{
}
static inline void __count_vm_events(enum vm_event_item item, long delta)
{
}
static inline void all_vm_events(unsigned long *ret)
{
}
static inline void vm_events_fold_cpu(int cpu)
{
}

#endif /* CONFIG_VM_EVENT_COUNTERS */

#define __count_zone_vm_events(item, zone, delta) \
		__count_vm_events(item##_NORMAL - ZONE_NORMAL + \
		zone_idx(zone), delta)

/*
 * Zone based page accounting with per cpu differentials.
 */
extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];

static inline void zone_page_state_add(long x, struct zone *zone,
				 enum zone_stat_item item)
{
	atomic_long_add(x, &zone->vm_stat[item]);
	atomic_long_add(x, &vm_stat[item]);
}

static inline unsigned long global_page_state(enum zone_stat_item item)
{
	long x = atomic_long_read(&vm_stat[item]);
#ifdef CONFIG_SMP
	if (x < 0)
		x = 0;
#endif
	return x;
}

static inline unsigned long zone_page_state(struct zone *zone,
					enum zone_stat_item item)
{
	long x = atomic_long_read(&zone->vm_stat[item]);
#ifdef CONFIG_SMP
	if (x < 0)
		x = 0;
#endif
	return x;
}

/*
 * More accurate version that also considers the currently pending
 * deltas. For that we need to loop over all cpus to find the current
 * deltas. There is no synchronization so the result cannot be
 * exactly accurate either.
 */
static inline unsigned long zone_page_state_snapshot(struct zone *zone,
					enum zone_stat_item item)
{
	long x = atomic_long_read(&zone->vm_stat[item]);

#ifdef CONFIG_SMP
	int cpu;
	for_each_online_cpu(cpu)
		x += per_cpu_ptr(zone->pageset, cpu)->vm_stat_diff[item];

	if (x < 0)
		x = 0;
#endif
	return x;
}

extern unsigned long global_reclaimable_pages(void);
extern unsigned long zone_reclaimable_pages(struct zone *zone);

#ifdef CONFIG_NUMA
/*
 * Determine the per node value of a stat item. This function
 * is called frequently in a NUMA machine, so try to be as
 * frugal as possible.
 */
static inline unsigned long node_page_state(int node,
				 enum zone_stat_item item)
{
	struct zone *zones = NODE_DATA(node)->node_zones;

	return
#ifdef CONFIG_ZONE_DMA
		zone_page_state(&zones[ZONE_DMA], item) +
#endif
#ifdef CONFIG_ZONE_DMA32
		zone_page_state(&zones[ZONE_DMA32], item) +
#endif
#ifdef CONFIG_HIGHMEM
		zone_page_state(&zones[ZONE_HIGHMEM], item) +
#endif
		zone_page_state(&zones[ZONE_NORMAL], item) +
		zone_page_state(&zones[ZONE_MOVABLE], item);
}

extern void zone_statistics(struct zone *, struct zone *, gfp_t gfp);

#else

#define node_page_state(node, item) global_page_state(item)
#define zone_statistics(_zl, _z, gfp) do { } while (0)

#endif /* CONFIG_NUMA */

#define add_zone_page_state(__z, __i, __d) mod_zone_page_state(__z, __i, __d)
#define sub_zone_page_state(__z, __i, __d) mod_zone_page_state(__z, __i, -(__d))

static inline void zap_zone_vm_stats(struct zone *zone)
{
	memset(zone->vm_stat, 0, sizeof(zone->vm_stat));
}

extern void inc_zone_state(struct zone *, enum zone_stat_item);

#ifdef CONFIG_SMP
void __mod_zone_page_state(struct zone *, enum zone_stat_item item, int);
void __inc_zone_page_state(struct page *, enum zone_stat_item);
void __dec_zone_page_state(struct page *, enum zone_stat_item);

void mod_zone_page_state(struct zone *, enum zone_stat_item, int);
void inc_zone_page_state(struct page *, enum zone_stat_item);
void dec_zone_page_state(struct page *, enum zone_stat_item);

extern void inc_zone_state(struct zone *, enum zone_stat_item);
extern void __inc_zone_state(struct zone *, enum zone_stat_item);
extern void dec_zone_state(struct zone *, enum zone_stat_item);
extern void __dec_zone_state(struct zone *, enum zone_stat_item);

void refresh_cpu_vm_stats(int);
void refresh_zone_stat_thresholds(void);

int calculate_pressure_threshold(struct zone *zone);
int calculate_normal_threshold(struct zone *zone);
void set_pgdat_percpu_threshold(pg_data_t *pgdat,
				int (*calculate_pressure)(struct zone *));
#else /* CONFIG_SMP */

/*
 * We do not maintain differentials in a single processor configuration.
 * The functions directly modify the zone and global counters.
 */
static inline void __mod_zone_page_state(struct zone *zone,
			enum zone_stat_item item, int delta)
{
	zone_page_state_add(delta, zone, item);
}

static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
{
	atomic_long_inc(&zone->vm_stat[item]);
	atomic_long_inc(&vm_stat[item]);
}

static inline void __inc_zone_page_state(struct page *page,
			enum zone_stat_item item)
{
	__inc_zone_state(page_zone(page), item);
}

static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
{
	atomic_long_dec(&zone->vm_stat[item]);
	atomic_long_dec(&vm_stat[item]);
}

static inline void __dec_zone_page_state(struct page *page,
			enum zone_stat_item item)
{
	__dec_zone_state(page_zone(page), item);
}

/*
 * We only use atomic operations to update counters. So there is no need to
 * disable interrupts.
 */
#define inc_zone_page_state __inc_zone_page_state
#define dec_zone_page_state __dec_zone_page_state
#define mod_zone_page_state __mod_zone_page_state

#define set_pgdat_percpu_threshold(pgdat, callback) { }

static inline void refresh_cpu_vm_stats(int cpu) { }
static inline void refresh_zone_stat_thresholds(void) { }

#endif		/* CONFIG_SMP */

extern const char * const vmstat_text[];

#endif /* _LINUX_VMSTAT_H */
Commit	Line	Data
f6ac2354 CL	1	#ifndef _LINUX_VMSTAT_H
	2	#define _LINUX_VMSTAT_H
	3
	4	#include <linux/types.h>
	5	#include <linux/percpu.h>
96177299	6	#include <linux/mm.h>
2244b95a CL	7	#include <linux/mmzone.h>
2244b95a CL	8	#include <asm/atomic.h>
f6ac2354	9
4b51d669 CL	10	#ifdef CONFIG_ZONE_DMA
	11	#define DMA_ZONE(xx) xx##_DMA,
	12	#else
	13	#define DMA_ZONE(xx)
	14	#endif
	15
27bf71c2 CL	16	#ifdef CONFIG_ZONE_DMA32
	17	#define DMA32_ZONE(xx) xx##_DMA32,
	18	#else
	19	#define DMA32_ZONE(xx)
	20	#endif
	21
	22	#ifdef CONFIG_HIGHMEM
	23	#define HIGHMEM_ZONE(xx) , xx##_HIGH
	24	#else
	25	#define HIGHMEM_ZONE(xx)
	26	#endif
	27
3b116300	28
2a1e274a	29	#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL HIGHMEM_ZONE(xx) , xx##_MOVABLE
f8891e5e CL	30
	31	enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
	32	FOR_ALL_ZONES(PGALLOC),
	33	PGFREE, PGACTIVATE, PGDEACTIVATE,
	34	PGFAULT, PGMAJFAULT,
	35	FOR_ALL_ZONES(PGREFILL),
	36	FOR_ALL_ZONES(PGSTEAL),
	37	FOR_ALL_ZONES(PGSCAN_KSWAPD),
	38	FOR_ALL_ZONES(PGSCAN_DIRECT),
24cf7251 MG	39	#ifdef CONFIG_NUMA
	40	PGSCAN_ZONE_RECLAIM_FAILED,
	41	#endif
f8891e5e	42	PGINODESTEAL, SLABS_SCANNED, KSWAPD_STEAL, KSWAPD_INODESTEAL,
bb3ab596 KM	43	KSWAPD_LOW_WMARK_HIT_QUICKLY, KSWAPD_HIGH_WMARK_HIT_QUICKLY,
bb3ab596 KM	44	KSWAPD_SKIP_CONGESTION_WAIT,
f8891e5e	45	PAGEOUTRUN, ALLOCSTALL, PGROTATED,
748446bb MG	46	#ifdef CONFIG_COMPACTION
748446bb MG	47	COMPACTBLOCKS, COMPACTPAGES, COMPACTPAGEFAILED,
56de7263	48	COMPACTSTALL, COMPACTFAIL, COMPACTSUCCESS,
748446bb	49	#endif
3b116300 AL	50	#ifdef CONFIG_HUGETLB_PAGE
3b116300 AL	51	HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_FAIL,
bbfd28ee	52	#endif
bbfd28ee LS	53	UNEVICTABLE_PGCULLED, /* culled to noreclaim list */
	54	UNEVICTABLE_PGSCANNED, /* scanned for reclaimability */
	55	UNEVICTABLE_PGRESCUED, /* rescued from noreclaim list */
5344b7e6 NP	56	UNEVICTABLE_PGMLOCKED,
	57	UNEVICTABLE_PGMUNLOCKED,
	58	UNEVICTABLE_PGCLEARED, /* on COW, page truncate */
	59	UNEVICTABLE_PGSTRANDED, /* unable to isolate on unlock */
985737cf	60	UNEVICTABLE_MLOCKFREED,
81ab4201 AK	61	#ifdef CONFIG_TRANSPARENT_HUGEPAGE
	62	THP_FAULT_ALLOC,
	63	THP_FAULT_FALLBACK,
	64	THP_COLLAPSE_ALLOC,
	65	THP_COLLAPSE_ALLOC_FAILED,
	66	THP_SPLIT,
	67	#endif
f8891e5e CL	68	NR_VM_EVENT_ITEMS
	69	};
	70
c748e134 AB	71	extern int sysctl_stat_interval;
c748e134 AB	72
780a0656 AM	73	#ifdef CONFIG_VM_EVENT_COUNTERS
	74	/*
	75	* Light weight per cpu counter implementation.
	76	*
	77	* Counters should only be incremented and no critical kernel component
	78	* should rely on the counter values.
	79	*
	80	* Counters are handled completely inline. On many platforms the code
	81	* generated will simply be the increment of a global address.
	82	*/
	83
f8891e5e CL	84	struct vm_event_state {
f8891e5e CL	85	unsigned long event[NR_VM_EVENT_ITEMS];
f6ac2354 CL	86	};
f6ac2354 CL	87
f8891e5e CL	88	DECLARE_PER_CPU(struct vm_event_state, vm_event_states);
	89
	90	static inline void __count_vm_event(enum vm_event_item item)
	91	{
dd17c8f7	92	__this_cpu_inc(vm_event_states.event[item]);
f8891e5e CL	93	}
	94
	95	static inline void count_vm_event(enum vm_event_item item)
	96	{
dd17c8f7	97	this_cpu_inc(vm_event_states.event[item]);
f8891e5e CL	98	}
	99
	100	static inline void __count_vm_events(enum vm_event_item item, long delta)
	101	{
dd17c8f7	102	__this_cpu_add(vm_event_states.event[item], delta);
f8891e5e CL	103	}
	104
	105	static inline void count_vm_events(enum vm_event_item item, long delta)
	106	{
dd17c8f7	107	this_cpu_add(vm_event_states.event[item], delta);
f8891e5e CL	108	}
	109
	110	extern void all_vm_events(unsigned long *);
e903387f	111	#ifdef CONFIG_HOTPLUG
f8891e5e	112	extern void vm_events_fold_cpu(int cpu);
e903387f MD	113	#else
	114	static inline void vm_events_fold_cpu(int cpu)
	115	{
	116	}
	117	#endif
f8891e5e CL	118
	119	#else
	120
	121	/* Disable counters */
780a0656 AM	122	static inline void count_vm_event(enum vm_event_item item)
	123	{
	124	}
	125	static inline void count_vm_events(enum vm_event_item item, long delta)
	126	{
	127	}
	128	static inline void __count_vm_event(enum vm_event_item item)
	129	{
	130	}
	131	static inline void __count_vm_events(enum vm_event_item item, long delta)
	132	{
	133	}
	134	static inline void all_vm_events(unsigned long *ret)
	135	{
	136	}
	137	static inline void vm_events_fold_cpu(int cpu)
	138	{
	139	}
f8891e5e CL	140
	141	#endif /* CONFIG_VM_EVENT_COUNTERS */
	142
	143	#define __count_zone_vm_events(item, zone, delta) \
4b51d669 CL	144	__count_vm_events(item##_NORMAL - ZONE_NORMAL + \
4b51d669 CL	145	zone_idx(zone), delta)
f6ac2354	146
2244b95a CL	147	/*
	148	* Zone based page accounting with per cpu differentials.
	149	*/
	150	extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
	151
	152	static inline void zone_page_state_add(long x, struct zone *zone,
	153	enum zone_stat_item item)
	154	{
	155	atomic_long_add(x, &zone->vm_stat[item]);
	156	atomic_long_add(x, &vm_stat[item]);
	157	}
	158
	159	static inline unsigned long global_page_state(enum zone_stat_item item)
	160	{
	161	long x = atomic_long_read(&vm_stat[item]);
	162	#ifdef CONFIG_SMP
	163	if (x < 0)
	164	x = 0;
	165	#endif
	166	return x;
	167	}
	168
	169	static inline unsigned long zone_page_state(struct zone *zone,
	170	enum zone_stat_item item)
	171	{
	172	long x = atomic_long_read(&zone->vm_stat[item]);
	173	#ifdef CONFIG_SMP
	174	if (x < 0)
	175	x = 0;
	176	#endif
	177	return x;
	178	}
	179
aa454840 CL	180	/*
	181	* More accurate version that also considers the currently pending
	182	* deltas. For that we need to loop over all cpus to find the current
	183	* deltas. There is no synchronization so the result cannot be
	184	* exactly accurate either.
	185	*/
	186	static inline unsigned long zone_page_state_snapshot(struct zone *zone,
	187	enum zone_stat_item item)
	188	{
	189	long x = atomic_long_read(&zone->vm_stat[item]);
	190
	191	#ifdef CONFIG_SMP
	192	int cpu;
	193	for_each_online_cpu(cpu)
	194	x += per_cpu_ptr(zone->pageset, cpu)->vm_stat_diff[item];
	195
	196	if (x < 0)
	197	x = 0;
	198	#endif
	199	return x;
	200	}
	201
adea02a1 WF	202	extern unsigned long global_reclaimable_pages(void);
adea02a1 WF	203	extern unsigned long zone_reclaimable_pages(struct zone *zone);
4f98a2fe	204
2244b95a CL	205	#ifdef CONFIG_NUMA
	206	/*
	207	* Determine the per node value of a stat item. This function
	208	* is called frequently in a NUMA machine, so try to be as
	209	* frugal as possible.
	210	*/
	211	static inline unsigned long node_page_state(int node,
	212	enum zone_stat_item item)
	213	{
	214	struct zone *zones = NODE_DATA(node)->node_zones;
	215
	216	return
4b51d669 CL	217	#ifdef CONFIG_ZONE_DMA
	218	zone_page_state(&zones[ZONE_DMA], item) +
	219	#endif
fb0e7942	220	#ifdef CONFIG_ZONE_DMA32
2244b95a CL	221	zone_page_state(&zones[ZONE_DMA32], item) +
2244b95a CL	222	#endif
2244b95a CL	223	#ifdef CONFIG_HIGHMEM
	224	zone_page_state(&zones[ZONE_HIGHMEM], item) +
	225	#endif
2a1e274a MG	226	zone_page_state(&zones[ZONE_NORMAL], item) +
2a1e274a MG	227	zone_page_state(&zones[ZONE_MOVABLE], item);
2244b95a	228	}
ca889e6c	229
78afd561	230	extern void zone_statistics(struct zone , struct zone , gfp_t gfp);
ca889e6c	231
2244b95a	232	#else
ca889e6c	233
2244b95a	234	#define node_page_state(node, item) global_page_state(item)
78afd561	235	#define zone_statistics(_zl, _z, gfp) do { } while (0)
ca889e6c CL	236
ca889e6c CL	237	#endif /* CONFIG_NUMA */
2244b95a	238
2244b95a CL	239	#define add_zone_page_state(__z, __i, __d) mod_zone_page_state(__z, __i, __d)
	240	#define sub_zone_page_state(__z, __i, __d) mod_zone_page_state(__z, __i, -(__d))
	241
	242	static inline void zap_zone_vm_stats(struct zone *zone)
	243	{
	244	memset(zone->vm_stat, 0, sizeof(zone->vm_stat));
	245	}
	246
ca889e6c CL	247	extern void inc_zone_state(struct zone *, enum zone_stat_item);
ca889e6c CL	248
2244b95a CL	249	#ifdef CONFIG_SMP
	250	void __mod_zone_page_state(struct zone *, enum zone_stat_item item, int);
	251	void __inc_zone_page_state(struct page *, enum zone_stat_item);
	252	void __dec_zone_page_state(struct page *, enum zone_stat_item);
f6ac2354	253
2244b95a CL	254	void mod_zone_page_state(struct zone *, enum zone_stat_item, int);
	255	void inc_zone_page_state(struct page *, enum zone_stat_item);
	256	void dec_zone_page_state(struct page *, enum zone_stat_item);
	257
	258	extern void inc_zone_state(struct zone *, enum zone_stat_item);
c8785385 CL	259	extern void __inc_zone_state(struct zone *, enum zone_stat_item);
	260	extern void dec_zone_state(struct zone *, enum zone_stat_item);
	261	extern void __dec_zone_state(struct zone *, enum zone_stat_item);
2244b95a CL	262
2244b95a CL	263	void refresh_cpu_vm_stats(int);
a6cccdc3	264	void refresh_zone_stat_thresholds(void);
b44129b3 MG	265
	266	int calculate_pressure_threshold(struct zone *zone);
	267	int calculate_normal_threshold(struct zone *zone);
	268	void set_pgdat_percpu_threshold(pg_data_t *pgdat,
	269	int (calculate_pressure)(struct zone ));
2244b95a CL	270	#else /* CONFIG_SMP */
	271
	272	/*
	273	* We do not maintain differentials in a single processor configuration.
	274	* The functions directly modify the zone and global counters.
	275	*/
	276	static inline void __mod_zone_page_state(struct zone *zone,
	277	enum zone_stat_item item, int delta)
	278	{
	279	zone_page_state_add(delta, zone, item);
	280	}
	281
7f4599e9 CL	282	static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
	283	{
	284	atomic_long_inc(&zone->vm_stat[item]);
	285	atomic_long_inc(&vm_stat[item]);
	286	}
	287
2244b95a CL	288	static inline void __inc_zone_page_state(struct page *page,
	289	enum zone_stat_item item)
	290	{
7f4599e9	291	__inc_zone_state(page_zone(page), item);
2244b95a CL	292	}
2244b95a CL	293
c8785385 CL	294	static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
	295	{
	296	atomic_long_dec(&zone->vm_stat[item]);
	297	atomic_long_dec(&vm_stat[item]);
	298	}
	299
2244b95a CL	300	static inline void __dec_zone_page_state(struct page *page,
	301	enum zone_stat_item item)
	302	{
57ce36fe	303	__dec_zone_state(page_zone(page), item);
2244b95a CL	304	}
	305
	306	/*
	307	* We only use atomic operations to update counters. So there is no need to
	308	* disable interrupts.
	309	*/
	310	#define inc_zone_page_state __inc_zone_page_state
	311	#define dec_zone_page_state __dec_zone_page_state
	312	#define mod_zone_page_state __mod_zone_page_state
	313
b44129b3	314	#define set_pgdat_percpu_threshold(pgdat, callback) { }
88f5acf8	315
2244b95a	316	static inline void refresh_cpu_vm_stats(int cpu) { }
a6cccdc3 KM	317	static inline void refresh_zone_stat_thresholds(void) { }
a6cccdc3 KM	318
fa25c503 KM	319	#endif /* CONFIG_SMP */
	320
	321	extern const char * const vmstat_text[];
2244b95a CL	322
2244b95a CL	323	#endif /* _LINUX_VMSTAT_H */