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Subject[PATCH 1/1] sched: remove duplicated init_task's preempt_notifiers init
Date
init_task's preempt_notifiers is initialized at two times.

1) sched_init()
-> INIT_HLIST_HEAD(&init_task.preempt_notifiers)
2) sched_init()
-> init_idle(current,) <--- current task is init_task at this time
-> __sched_fork(,current)
-> INIT_HLIST_HEAD(&p->preempt_notifiers)

I think first one is needless, remove it.

Signed-off-by: seokhoon.yoon <iamyooon@gmail.com>
---
kernel/sched/core.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 5c883fe..5760f62 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7482,10 +7482,6 @@ void __init sched_init(void)

set_load_weight(&init_task);

-#ifdef CONFIG_PREEMPT_NOTIFIERS
- INIT_HLIST_HEAD(&init_task.preempt_notifiers);
-#endif
-
/*
* The boot idle thread does lazy MMU switching as well:
*/
--
1.9.1
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