diff options
Diffstat (limited to 'include/linux/vmstat.h')
| -rw-r--r-- | include/linux/vmstat.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index c89df55f6e03..5e9803ed17fc 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -10,8 +10,9 @@ /* * Light weight per cpu counter implementation. * - * Counters should only be incremented and no critical kernel component - * should rely on the counter values. + * 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. @@ -73,7 +74,13 @@ static inline void count_vm_events(enum vm_event_item item, long 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 |