Merge tag 'sched-urgent-2023-09-22' of git://git.kernel.org/pub/scm/l…

…inux/kernel/git/tip/tip Pull scheduler fix from Ingo Molnar: "Fix a PF_IDLE initialization bug that generated warnings on tiny-RCU" * tag 'sched-urgent-2023-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: kernel/sched: Modify initial boot task idle setup
mariux64 · Sep 22, 2023 · 5b47b57 · 5b47b57
2 parents 725e2d7 + cff9b23
commit 5b47b57
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diff --git a/kernel/sched/core.c b/kernel/sched/core.c
@@ -9269,7 +9269,7 @@ void __init init_idle(struct task_struct *idle, int cpu)
 	 * PF_KTHREAD should already be set at this point; regardless, make it
 	 * look like a proper per-CPU kthread.
 	 */
-	idle->flags |= PF_IDLE | PF_KTHREAD | PF_NO_SETAFFINITY;
+	idle->flags |= PF_KTHREAD | PF_NO_SETAFFINITY;
 	kthread_set_per_cpu(idle, cpu);
 
 #ifdef CONFIG_SMP

diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
@@ -373,6 +373,7 @@ EXPORT_SYMBOL_GPL(play_idle_precise);
 
 void cpu_startup_entry(enum cpuhp_state state)
 {
+	current->flags |= PF_IDLE;
 	arch_cpu_idle_prepare();
 	cpuhp_online_idle(state);
 	while (1)