[PATCH] sched: fix: remove double calculation in fix_small_imbalance

From: Vincent Guittot
Date: Tue Mar 11 2014 - 12:27:05 EST


The tmp value has been already calculated in:
scaled_busy_load_per_task =
(busiest->load_per_task * SCHED_POWER_SCALE) /
busiest->group_power;

Signed-off-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
---
kernel/sched/fair.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index f1eedae..b301918 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6061,12 +6061,10 @@ void fix_small_imbalance(struct lb_env *env, struct sd_lb_stats *sds)
pwr_now /= SCHED_POWER_SCALE;

/* Amount of load we'd subtract */
- tmp = (busiest->load_per_task * SCHED_POWER_SCALE) /
- busiest->group_power;
- if (busiest->avg_load > tmp) {
+ if (busiest->avg_load > scaled_busy_load_per_task) {
pwr_move += busiest->group_power *
min(busiest->load_per_task,
- busiest->avg_load - tmp);
+ busiest->avg_load - scaled_busy_load_per_task);
}

/* Amount of load we'd add */
--
1.9.0

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