Re: [PATCH v2 1/3] context_tracking: Split guest_enter/exit_irqoff

[Christian Borntraeger <borntraeger@xxxxxxxxxx>]

On 13.04.21 09:16, Wanpeng Li wrote:
[...]

> @@ -145,6 +155,13 @@ static __always_inline void guest_exit_irqoff(void)
>   }
>
>   #else
> +static __always_inline void context_guest_enter_irqoff(void)
> +{
> +	instrumentation_begin();
> +	rcu_virt_note_context_switch(smp_processor_id());
> +	instrumentation_end();
> +}
> +
>   static __always_inline void guest_enter_irqoff(void)
>   {
>   	/*
> @@ -155,10 +172,13 @@ static __always_inline void guest_enter_irqoff(void)
>   	instrumentation_begin();
>   	vtime_account_kernel(current);
>   	current->flags |= PF_VCPU;
> -	rcu_virt_note_context_switch(smp_processor_id());
>   	instrumentation_end();
> +
> +	context_guest_enter_irqoff();

So we now do instrumentation_begin 2 times?