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Commit efca03ec authored by seokhoon.yoon's avatar seokhoon.yoon Committed by Ingo Molnar
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schedcore: Remove duplicated init_task's preempt_notifiers init 



init_task's preempt_notifiers is initialized twice:

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 the first one is unnecessary, so remove it.

Signed-off-by: default avatarseokhoon.yoon <iamyooon@gmail.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1471339568-5790-1-git-send-email-iamyooon@gmail.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 26656215

kernel/sched/core.c

+0 −4
Original line number Diff line number Diff line
@@ -7554,10 +7554,6 @@ 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:

	 */