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-rw-r--r--meta-eas/recipes-kernel/linux/linux-renesas/0012-sched-fair-Fix-task-group-initialization.patch43
1 files changed, 43 insertions, 0 deletions
diff --git a/meta-eas/recipes-kernel/linux/linux-renesas/0012-sched-fair-Fix-task-group-initialization.patch b/meta-eas/recipes-kernel/linux/linux-renesas/0012-sched-fair-Fix-task-group-initialization.patch
new file mode 100644
index 0000000..e8703ba
--- /dev/null
+++ b/meta-eas/recipes-kernel/linux/linux-renesas/0012-sched-fair-Fix-task-group-initialization.patch
@@ -0,0 +1,43 @@
+From c71758c426fd1c0e04b6f870b57c0434cb73246a Mon Sep 17 00:00:00 2001
+From: Vincent Guittot <vincent.guittot@linaro.org>
+Date: Tue, 8 Nov 2016 10:53:47 +0100
+Subject: [PATCH 12/92] sched/fair: Fix task group initialization
+
+The moves of tasks are now propagated down to root and the utilization
+of cfs_rq reflects reality so it doesn't need to be estimated at init.
+
+Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
+Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
+Acked-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
+Cc: Linus Torvalds <torvalds@linux-foundation.org>
+Cc: Morten.Rasmussen@arm.com
+Cc: Peter Zijlstra <peterz@infradead.org>
+Cc: Thomas Gleixner <tglx@linutronix.de>
+Cc: bsegall@google.com
+Cc: kernellwp@gmail.com
+Cc: pjt@google.com
+Cc: yuyang.du@intel.com
+Link: http://lkml.kernel.org/r/1478598827-32372-7-git-send-email-vincent.guittot@linaro.org
+Signed-off-by: Ingo Molnar <mingo@kernel.org>
+(cherry picked from commit d03266910a533d874c01ef2ca8dc73009f2925fa)
+Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.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 090a9bb..02605f2 100644
+--- a/kernel/sched/fair.c
++++ b/kernel/sched/fair.c
+@@ -9198,7 +9198,7 @@ void online_fair_sched_group(struct task_group *tg)
+ se = tg->se[i];
+
+ raw_spin_lock_irq(&rq->lock);
+- post_init_entity_util_avg(se);
++ attach_entity_cfs_rq(se);
+ sync_throttle(tg, i);
+ raw_spin_unlock_irq(&rq->lock);
+ }
+--
+1.9.1
+