[RFC][Patch 09/18] sched: update division in cpu_avg_load_per_task to use div_u64

[Nikhil Rao]

This patch updates the division in cpu_avg_load_per_task() to use div_u64, so
that it works on 32-bit. We do not convert avg_load_per_task to u64 since this
can be atmost 2^28, and fits into unsigned long on 32-bit.

Signed-off-by: Nikhil Rao <ncrao@xxxxxxxxxx>
---
 kernel/sched.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index f0adb0e..8047f10 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1525,7 +1525,7 @@ static unsigned long cpu_avg_load_per_task(int cpu)
 	unsigned long nr_running = ACCESS_ONCE(rq->nr_running);
 
 	if (nr_running)
-		rq->avg_load_per_task = rq->load.weight / nr_running;
+		rq->avg_load_per_task = div_u64(rq->load.weight, nr_running);
 	else
 		rq->avg_load_per_task = 0;
 
-- 
1.7.3.1

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