linux-kernel - Re: [PATCH] irq_work: Add event-tracing points for irq

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Message-ID: <87h76vepzp.ffs@tglx>
Date:   Thu, 14 Apr 2022 15:47:22 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Zqiang <qiang1.zhang@...el.com>, akpm@...ux-foundation.org,
        peterz@...radead.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] irq_work: Add event-tracing points for irq_work

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?

Thanks,

        tglx