Re: [RESEND PATCH v2] clocksource/arm_arch_timer: fix a lockdep warning

[Valentin Schneider]

Hi,

On 10/12/2018 14:07, Peter Zijlstra wrote:
[...]
> ---
>  kernel/cpu.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/kernel/cpu.c b/kernel/cpu.c
> index 91d5c38eb7e5..e1ee8caf28b5 100644
> --- a/kernel/cpu.c
> +++ b/kernel/cpu.c
> @@ -313,6 +313,8 @@ void cpus_write_unlock(void)
>  
>  void lockdep_assert_cpus_held(void)
>  {
> +	if (system_state < SYSTEM_RUNNING)
> +		return;
>  	percpu_rwsem_assert_held(&cpu_hotplug_lock);
>  }
>  

Kinda hijacking the thread here - is that something we'd want to replace 

    40fa3780bac2 ("sched/core: Take the hotplug lock in sched_init_smp()")

with?