diff options
| -rw-r--r-- | include/linux/vmstat.h | 47 |
1 files changed, 29 insertions, 18 deletions
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 7ba91f2839fa..acb1f105870c 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -7,18 +7,6 @@ #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 @@ -52,6 +40,17 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, NR_VM_EVENT_ITEMS }; +#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]; }; @@ -92,12 +91,24 @@ static inline void vm_events_fold_cpu(int cpu) #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 */ |