diff options
Diffstat (limited to 'include/linux/vmstat.h')
| -rw-r--r-- | include/linux/vmstat.h | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 97e11ab573f0..ade7cb5f1359 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -107,8 +107,37 @@ static inline void vm_events_fold_cpu(int cpu) * Zone and node-based page accounting with per cpu differentials. */ extern atomic_long_t vm_zone_stat[NR_VM_ZONE_STAT_ITEMS]; +extern atomic_long_t vm_numa_stat[NR_VM_NUMA_STAT_ITEMS]; extern atomic_long_t vm_node_stat[NR_VM_NODE_STAT_ITEMS]; +#ifdef CONFIG_NUMA +static inline void zone_numa_state_add(long x, struct zone *zone, + enum numa_stat_item item) +{ + atomic_long_add(x, &zone->vm_numa_stat[item]); + atomic_long_add(x, &vm_numa_stat[item]); +} + +static inline unsigned long global_numa_state(enum numa_stat_item item) +{ + long x = atomic_long_read(&vm_numa_stat[item]); + + return x; +} + +static inline unsigned long zone_numa_state_snapshot(struct zone *zone, + enum numa_stat_item item) +{ + long x = atomic_long_read(&zone->vm_numa_stat[item]); + int cpu; + + for_each_online_cpu(cpu) + x += per_cpu_ptr(zone->pageset, cpu)->vm_numa_stat_diff[item]; + + return x; +} +#endif /* CONFIG_NUMA */ + static inline void zone_page_state_add(long x, struct zone *zone, enum zone_stat_item item) { @@ -194,8 +223,10 @@ static inline unsigned long node_page_state_snapshot(pg_data_t *pgdat, #ifdef CONFIG_NUMA +extern void __inc_numa_state(struct zone *zone, enum numa_stat_item item); extern unsigned long sum_zone_node_page_state(int node, - enum zone_stat_item item); + enum zone_stat_item item); +extern unsigned long sum_zone_numa_state(int node, enum numa_stat_item item); extern unsigned long node_page_state(struct pglist_data *pgdat, enum node_stat_item item); #else |