[tg_shares_up rewrite v4 08/11] sched: update shares on idle_balance

[Paul Turner]

Since shares updates are no longer expensive and effectively local, update them
at idle_balance().  This allows us to more quickly redistribute shares to
another cpu when our load becomes idle.

Signed-off-by: Paul Turner <pjt@xxxxxxxxxx>

---
 kernel/sched_fair.c |    1 +
 1 file changed, 1 insertion(+)

Index: tip/kernel/sched_fair.c
===================================================================
--- tip.orig/kernel/sched_fair.c
+++ tip/kernel/sched_fair.c
@@ -3365,6 +3365,7 @@ static void idle_balance(int this_cpu, s
 	 */
 	raw_spin_unlock(&this_rq->lock);
 
+	update_shares(this_cpu);
 	for_each_domain(this_cpu, sd) {
 		unsigned long interval;
 		int balance = 1;


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