#include <linux/types.h>
#include <linux/percpu.h>
+#include <linux/mm.h>
#include <linux/mmzone.h>
#include <asm/atomic.h>
-#ifdef CONFIG_VM_EVENT_COUNTERS
-/*
- * Light weight per cpu counter implementation.
- *
- * Counters should only be incremented. You need to set EMBEDDED
- * to disable VM_EVENT_COUNTERS. Things like procps (vmstat,
- * top, etc) use /proc/vmstat and depend on these counters.
- *
- * Counters are handled completely inline. On many platforms the code
- * generated will simply be the increment of a global address.
- */
+#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,
#define HIGHMEM_ZONE(xx)
#endif
-#define FOR_ALL_ZONES(xx) xx##_DMA, DMA32_ZONE(xx) xx##_NORMAL HIGHMEM_ZONE(xx)
+
+#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),
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_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,
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];
};
static inline void __count_vm_event(enum vm_event_item item)
{
- __get_cpu_var(vm_event_states).event[item]++;
+ __this_cpu_inc(per_cpu_var(vm_event_states).event[item]);
}
static inline void count_vm_event(enum vm_event_item item)
{
- get_cpu_var(vm_event_states).event[item]++;
- put_cpu();
+ this_cpu_inc(per_cpu_var(vm_event_states).event[item]);
}
static inline void __count_vm_events(enum vm_event_item item, long delta)
{
- __get_cpu_var(vm_event_states).event[item] += delta;
+ __this_cpu_add(per_cpu_var(vm_event_states).event[item], delta);
}
static inline void count_vm_events(enum vm_event_item item, long delta)
{
- get_cpu_var(vm_event_states).event[item] += delta;
- put_cpu();
+ this_cpu_add(per_cpu_var(vm_event_states).event[item], delta);
}
extern void all_vm_events(unsigned long *);
#else
/* Disable counters */
-#define get_cpu_vm_events(e) 0L
-#define count_vm_event(e) do { } while (0)
-#define count_vm_events(e,d) do { } while (0)
-#define __count_vm_event(e) do { } while (0)
-#define __count_vm_events(e,d) do { } while (0)
-#define vm_events_fold_cpu(x) do { } while (0)
+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##_DMA + zone_idx(zone), delta)
+ __count_vm_events(item##_NORMAL - ZONE_NORMAL + \
+ zone_idx(zone), delta)
/*
* Zone based page accounting with per cpu differentials.
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
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
- zone_page_state(&zones[ZONE_NORMAL], item) +
#ifdef CONFIG_HIGHMEM
zone_page_state(&zones[ZONE_HIGHMEM], item) +
#endif
- zone_page_state(&zones[ZONE_DMA], item);
+ zone_page_state(&zones[ZONE_NORMAL], item) +
+ zone_page_state(&zones[ZONE_MOVABLE], item);
}
-extern void zone_statistics(struct zonelist *, struct zone *);
+extern void zone_statistics(struct zone *, struct zone *);
#else
#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))
-
#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))
extern void __dec_zone_state(struct zone *, enum zone_stat_item);
void refresh_cpu_vm_stats(int);
-void refresh_vm_stats(void);
-
#else /* CONFIG_SMP */
/*
static inline void __dec_zone_page_state(struct page *page,
enum zone_stat_item item)
{
- atomic_long_dec(&page_zone(page)->vm_stat[item]);
- atomic_long_dec(&vm_stat[item]);
+ __dec_zone_state(page_zone(page), item);
}
/*
#define mod_zone_page_state __mod_zone_page_state
static inline void refresh_cpu_vm_stats(int cpu) { }
-static inline void refresh_vm_stats(void) { }
#endif
#endif /* _LINUX_VMSTAT_H */
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