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sched: avoid unnecessary multiplication and division

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Avoid unnecessary multiplication and division when load scaling factor
is 1024.

Change-Id: If3cb63a77feaf49cc69ddec7f41cc3c1cabbfc5a
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
This commit is contained in:
Joonwoo Park 2015-08-24 15:14:44 -07:00 • committed by David Keitel
parent 91a8710235
commit b2e60dbe08
1 changed files with 4 additions and 2 deletions
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6
kernel/sched/sched.h
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@ -1034,8 +1034,10 @@ static inline u64 scale_load_to_cpu(u64 task_load, int cpu)
{
struct rq *rq = cpu_rq(cpu);
task_load *= (u64)rq->load_scale_factor;
task_load /= 1024;
if (rq->load_scale_factor != 1024) {
task_load *= (u64)rq->load_scale_factor;
task_load /= 1024;
}
return task_load;
}