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Subject[RFC,v2 2/3] sched: set number of iterations to h_nr_running
Date
From: Uladzislau 2 Rezki <uladzislau2.rezki@sonymobile.com>

It is possible that busiest run queue has multiple RT tasks,
whereas no CFS tasks, that is why it is reasonable to use
h_nr_running instead, because a load balance only applies
for CFS related tasks.

Signed-off-by: Uladzislau 2 Rezki <uladzislau2.rezki@sonymobile.com>
---
kernel/sched/fair.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 4be7193..232ef3c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -8081,7 +8081,7 @@ static int load_balance(int this_cpu, struct rq *this_rq,
* Set loop_max when rq's lock is taken to prevent a race.
*/
env.loop_max = min(sysctl_sched_nr_migrate,
- busiest->nr_running);
+ busiest->cfs.h_nr_running);

/*
* cur_ld_moved - load moved in current iteration
--
2.1.4
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