div_u64 can only handle 32-bits divisor, if our divisor is with type of
64-bits, we should use div64_u64 instead, otherwise value of divisor will
be cast to 32-bits, resulting in wrong calculation.
Signed-off-by: Chao Yu <chao2...@samsung.com>
---
kernel/sched/fair.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 9176f7c..ee268ef 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6086,7 +6086,7 @@ static unsigned long scale_rt_capacity(int cpu)
total = sched_avg_period() + delta;
- used = div_u64(avg, total);
+ used = div64_u64(avg, total);
if (likely(used < SCHED_CAPACITY_SCALE))
return SCHED_CAPACITY_SCALE - used;
--
2.5.2
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