linux-kernel - Re: [PATCH v2 09/13] notifier: Show function names on notifier routines if DEBUG

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Message-ID: <9974e738-6e3d-7d00-69b3-3aca37ea7cc1@igalia.com>
Date:   Thu, 21 Jul 2022 10:20:42 -0300
From:   "Guilherme G. Piccoli" <gpiccoli@...lia.com>
To:     Arjan van de Ven <arjan@...ux.intel.com>,
        akpm@...ux-foundation.org, bhe@...hat.com, pmladek@...e.com,
        kexec@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, linux-hyperv@...r.kernel.org,
        netdev@...r.kernel.org, x86@...nel.org, kernel-dev@...lia.com,
        kernel@...ccoli.net, halves@...onical.com, fabiomirmar@...il.com,
        alejandro.j.jimenez@...cle.com, andriy.shevchenko@...ux.intel.com,
        arnd@...db.de, bp@...en8.de, corbet@....net,
        d.hatayama@...fujitsu.com, dave.hansen@...ux.intel.com,
        dyoung@...hat.com, feng.tang@...el.com, gregkh@...uxfoundation.org,
        mikelley@...rosoft.com, hidehiro.kawai.ez@...achi.com,
        jgross@...e.com, john.ogness@...utronix.de, keescook@...omium.org,
        luto@...nel.org, mhiramat@...nel.org, mingo@...hat.com,
        paulmck@...nel.org, peterz@...radead.org, rostedt@...dmis.org,
        senozhatsky@...omium.org, stern@...land.harvard.edu,
        tglx@...utronix.de, vgoyal@...hat.com, vkuznets@...hat.com,
        will@...nel.org, Cong Wang <xiyou.wangcong@...il.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Valentin Schneider <valentin.schneider@....com>,
        Xiaoming Ni <nixiaoming@...wei.com>
Subject: Re: [PATCH v2 09/13] notifier: Show function names on notifier
 routines if DEBUG_NOTIFIERS is set

On 19/07/2022 19:04, Arjan van de Ven wrote:
> On 7/19/2022 2:00 PM, Guilherme G. Piccoli wrote:
>> On 19/07/2022 17:48, Arjan van de Ven wrote:
>>> [...]
>>> I would totally support an approach where instead of pr_info, there's a tracepoint
>>> for these events (and that shouldnt' need to be conditional on a config option)
>>>
>>> that's not what the patch does though.
>>
>> This is a good idea Arjan! We could use trace events or pr_debug() -
>> which one do you prefer?
>>
> 
> I'd go for a trace point to be honest
> 

ACK, I'll re-work it as a trace event then.
Cheers,


Guilherme