diff options
Diffstat (limited to 'kernel/locking/lock_events.h')
| -rw-r--r-- | kernel/locking/lock_events.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/locking/lock_events.h b/kernel/locking/lock_events.h index feb1acc54611..8c7e7d25f09c 100644 --- a/kernel/locking/lock_events.h +++ b/kernel/locking/lock_events.h @@ -31,12 +31,13 @@ enum lock_events { DECLARE_PER_CPU(unsigned long, lockevents[lockevent_num]); /* - * Increment the PV qspinlock statistical counters + * Increment the statistical counters. use raw_cpu_inc() because of lower + * overhead and we don't care if we loose the occasional update. */ static inline void __lockevent_inc(enum lock_events event, bool cond) { if (cond) - __this_cpu_inc(lockevents[event]); + raw_cpu_inc(lockevents[event]); } #define lockevent_inc(ev) __lockevent_inc(LOCKEVENT_ ##ev, true) @@ -44,7 +45,7 @@ static inline void __lockevent_inc(enum lock_events event, bool cond) static inline void __lockevent_add(enum lock_events event, int inc) { - __this_cpu_add(lockevents[event], inc); + raw_cpu_add(lockevents[event], inc); } #define lockevent_add(ev, c) __lockevent_add(LOCKEVENT_ ##ev, c) |