linux-kernel - Re: [PATCH 24/36] printk: Remove trace_.*

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Message-ID: <20220614103732.489ba62b@gandalf.local.home>
Date:   Tue, 14 Jun 2022 10:37:32 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Petr Mladek <pmladek@...e.com>
Cc:     Sergey Senozhatsky <senozhatsky@...omium.org>,
        Peter Zijlstra <peterz@...radead.org>,
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Subject: Re: [PATCH 24/36] printk: Remove trace_.*_rcuidle() usage

On Thu, 9 Jun 2022 15:02:20 +0200
Petr Mladek <pmladek@...e.com> wrote:

> > I'm somewhat curious whether we can actually remove that trace event.  
> 
> Good question.
> 
> Well, I think that it might be useful. It allows to see trace and
> printk messages together.

Yes people still use it. I was just asked about it at Kernel Recipes. That
is, someone wanted printk mixed in with the tracing, and I told them about
this event (which they didn't know about but was happy to hear that it
existed).

-- Steve