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authorVincent Guittot <vincent.guittot@linaro.org>2014-03-11 12:26:06 -0400
committerIngo Molnar <mingo@kernel.org>2014-03-12 05:49:00 -0400
commita2cd42601b474b957e1a5fe3692bcf7f9363bd51 (patch)
treed551c6e8329b99ce163959f8b7281488da582c3a
parent383afd0971538b3d77532a56404b24cfe967b5dd (diff)
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.guittot@linaro.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1394555166-22894-1-git-send-email-vincent.guittot@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rw-r--r--kernel/sched/fair.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index f1eedae1e83e..b301918ed510 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)
6061 pwr_now /= SCHED_POWER_SCALE; 6061 pwr_now /= SCHED_POWER_SCALE;
6062 6062
6063 /* Amount of load we'd subtract */ 6063 /* Amount of load we'd subtract */
6064 tmp = (busiest->load_per_task * SCHED_POWER_SCALE) / 6064 if (busiest->avg_load > scaled_busy_load_per_task) {
6065 busiest->group_power;
6066 if (busiest->avg_load > tmp) {
6067 pwr_move += busiest->group_power * 6065 pwr_move += busiest->group_power *
6068 min(busiest->load_per_task, 6066 min(busiest->load_per_task,
6069 busiest->avg_load - tmp); 6067 busiest->avg_load - scaled_busy_load_per_task);
6070 } 6068 }
6071 6069
6072 /* Amount of load we'd add */ 6070 /* Amount of load we'd add */