diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/vmstat.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/vmstat.h | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/ANDROID_3.4.5/include/linux/vmstat.h b/ANDROID_3.4.5/include/linux/vmstat.h deleted file mode 100644 index 65efb92d..00000000 --- a/ANDROID_3.4.5/include/linux/vmstat.h +++ /dev/null @@ -1,263 +0,0 @@ -#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 <linux/vm_event_item.h> -#include <linux/atomic.h> - -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 */ |