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[v2,01/11] sched: shortcut to remove load_idx

Message ID 1392602117-20773-2-git-send-email-alex.shi@linaro.org
State New
Headers show

Commit Message

Alex Shi Feb. 17, 2014, 1:55 a.m. UTC 
Shortcut to remove rq->cpu_load[load_idx] effect in scheduler.
In five load idx, only busy_idx, idle_idx are not zero.
Newidle_idx, wake_idx and fork_idx are all zero in all archs.

So, change the idx to zero here can fully remove load_idx effect.

Signed-off-by: Alex Shi <alex.shi@linaro.org>
---
 kernel/sched/fair.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 235cfa7..4fcc3a3 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5908,7 +5908,7 @@  static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sd
 	if (child && child->flags & SD_PREFER_SIBLING)
 		prefer_sibling = 1;
 
-	load_idx = get_sd_load_idx(env->sd, env->idle);
+	load_idx = 0;
 
 	do {
 		struct sg_lb_stats *sgs = &tmp_sgs;