[PATCH] count_vm_events() fix

Dopey bug.  Causes hopelessly-wrong numbers from vmstat(8) and several other
counters.

Cc: Christoph Lameter <clameter@engr.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 3e0daf54133e165aad7bde3adfff94cf659190ad..d673b7b15c34f07dd3d84c97ef00199dc289dd7d 100644 (file)
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -57,7 +57,7 @@ static inline void __count_vm_events(enum vm_event_item item, long delta)
 
 static inline void count_vm_events(enum vm_event_item item, long delta)
 {
-       get_cpu_var(vm_event_states.event[item])++;
+       get_cpu_var(vm_event_states.event[item]) += delta;
        put_cpu();
 }