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

From: Paul Turner
Date: Mon Nov 15 2010 - 18:52:58 EST


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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