Commit-ID:  98d8fd8126676f7ba6e133e65b2ca4b17989d32c
Gitweb:     http://git.kernel.org/tip/98d8fd8126676f7ba6e133e65b2ca4b17989d32c
Author:     Morten Rasmussen <morten.rasmus...@arm.com>
AuthorDate: Fri, 14 Aug 2015 17:23:14 +0100
Committer:  Ingo Molnar <mi...@kernel.org>
CommitDate: Sun, 13 Sep 2015 09:52:58 +0200

sched/fair: Initialize task load and utilization before placing task on rq

Task load or utilization is not currently considered in
select_task_rq_fair(), but if we want that in the future we should make
sure it is not zero for new tasks.

cc: Ingo Molnar <mi...@redhat.com>
cc: Peter Zijlstra <pet...@infradead.org>
Signed-off-by: Morten Rasmussen <morten.rasmus...@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Cc: Dietmar Eggemann <dietmar.eggem...@arm.com>
Cc: Juri Lelli <juri.le...@arm.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Mike Galbraith <efa...@gmx.de>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: daniel.lezc...@linaro.org
Cc: mturque...@baylibre.com
Cc: pang.xun...@zte.com.cn
Cc: r...@rjwysocki.net
Cc: sgurrapp...@nvidia.com
Cc: vincent.guit...@linaro.org
Cc: yuyang...@intel.com
Link: 
http://lkml.kernel.org/r/1439569394-11974-7-git-send-email-morten.rasmus...@arm.com
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
 kernel/sched/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b621271..6ab415a 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2343,6 +2343,8 @@ void wake_up_new_task(struct task_struct *p)
        struct rq *rq;
 
        raw_spin_lock_irqsave(&p->pi_lock, flags);
+       /* Initialize new task's runnable average */
+       init_entity_runnable_average(&p->se);
 #ifdef CONFIG_SMP
        /*
         * Fork balancing, do it here and not earlier because:
@@ -2352,8 +2354,6 @@ void wake_up_new_task(struct task_struct *p)
        set_task_cpu(p, select_task_rq(p, task_cpu(p), SD_BALANCE_FORK, 0));
 #endif
 
-       /* Initialize new task's runnable average */
-       init_entity_runnable_average(&p->se);
        rq = __task_rq_lock(p);
        activate_task(rq, p, 0);
        p->on_rq = TASK_ON_RQ_QUEUED;
--
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