diff options
Diffstat (limited to 'include/linux/vmstat.h')
| -rw-r--r-- | include/linux/vmstat.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index ea4476157e00..45c9cd1daf7a 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -27,9 +27,13 @@ struct vm_event_state { DECLARE_PER_CPU(struct vm_event_state, vm_event_states); +/* + * vm counters are allowed to be racy. Use raw_cpu_ops to avoid the + * local_irq_disable overhead. + */ static inline void __count_vm_event(enum vm_event_item item) { - __this_cpu_inc(vm_event_states.event[item]); + raw_cpu_inc(vm_event_states.event[item]); } static inline void count_vm_event(enum vm_event_item item) @@ -39,7 +43,7 @@ static inline void count_vm_event(enum vm_event_item item) static inline void __count_vm_events(enum vm_event_item item, long delta) { - __this_cpu_add(vm_event_states.event[item], delta); + raw_cpu_add(vm_event_states.event[item], delta); } static inline void count_vm_events(enum vm_event_item item, long delta) |