Commit-ID: a2cd42601b474b957e1a5fe3692bcf7f9363bd51
Gitweb: http://git.kernel.org/tip/a2cd42601b474b957e1a5fe3692bcf7f9363bd51
Author: Vincent Guittot <vincent.guit...@linaro.org>
AuthorDate: Tue, 11 Mar 2014 17:26:06 +0100
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Wed, 12 Mar 2014 10:49:00 +0100
sched: Remove double calculation in fix_small_imbalance()
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.guit...@linaro.org>
Signed-off-by: Peter Zijlstra <pet...@infradead.org>
Link:
http://lkml.kernel.org/r/1394555166-22894-1-git-send-email-vincent.guit...@linaro.org
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
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 */
--
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