RE: [PATCH] irq_work: Add event-tracing points for irq_work

[Zhang, Qiang1]

On Thu, Apr 14 2022 at 14:38, Zqiang wrote:
> +#define CREATE_TRACE_POINTS
> +#include <trace/events/irq_work.h>
> +
>  static DEFINE_PER_CPU(struct llist_head, raised_list);  static 
> DEFINE_PER_CPU(struct llist_head, lazy_list);  static 
> DEFINE_PER_CPU(struct task_struct *, irq_workd); @@ -81,7 +84,9 @@ 
> static void __irq_work_queue_local(struct irq_work *work)
>  	bool rt_lazy_work = false;
>  	bool lazy_work = false;
>  	int work_flags;
> +	int cpu = smp_processor_id();
>  
> +	trace_irq_work_queue_on(cpu, work);

>What about work_flags to see on which list this ends up?

The tracepoint have been record 'work->node.a_flags'  through check it to sure 
this irq-wrok is queued on which list

Thanks
Zqiang

>Thanks,
>
>        tglx