The current definitions for count_vm_numa_events() is wrong for
!CONFIG_NUMA_BALANCING as the following would miss the side-effect.
count_vm_numa_events(NUMA_FOO, bar++);
There are no such users of count_vm_numa_events() but it is a potential
pitfall. This patch fixes it and converts count_vm_numa_event() so that
the definitions look similar.
Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
---
include/linux/vmstat.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index a13291f..5fd71a7 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -85,7 +85,7 @@ static inline void vm_events_fold_cpu(int cpu)
#define count_vm_numa_events(x, y) count_vm_events(x, y)
#else
#define count_vm_numa_event(x) do {} while (0)
-#define count_vm_numa_events(x, y) do {} while (0)
+#define count_vm_numa_events(x, y) do { (void)(y); } while (0)
#endif /* CONFIG_NUMA_BALANCING */
#define __count_zone_vm_events(item, zone, delta) \
--
1.7.9.2
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