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Commit 9067ac85 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Linus Torvalds
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wake_up_process() should be never used to wakeup a TASK_STOPPED/TRACED task 



wake_up_process() should never wakeup a TASK_STOPPED/TRACED task.
Change it to use TASK_NORMAL and add the WARN_ON().

TASK_ALL has no other users, probably can be killed.

Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 9899d11f

kernel/sched/core.c

+2 −1
Original line number Diff line number Diff line
@@ -1523,7 +1523,8 @@ static void try_to_wake_up_local(struct task_struct *p) 
 */

int wake_up_process(struct task_struct *p)

{

	return try_to_wake_up(p, TASK_ALL, 0);

	WARN_ON(task_is_stopped_or_traced(p));

	return try_to_wake_up(p, TASK_NORMAL, 0);

}

EXPORT_SYMBOL(wake_up_process);