linux-kernel - Re: [RFC][PATCH] tracing: Allow creating instances with specified system events

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Message-ID: <20231128092029.342f5f03@gandalf.local.home>
Date:   Tue, 28 Nov 2023 09:20:29 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Dmytro Maluka <dmaluka@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux Trace Kernel <linux-trace-kernel@...r.kernel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Sean Paul <seanpaul@...omium.org>,
        Arun Easi <aeasi@...vell.com>, Daniel Wagner <dwagner@...e.de>
Subject: Re: [RFC][PATCH] tracing: Allow creating instances with specified
 system events

On Tue, 28 Nov 2023 14:14:29 +0100
Dmytro Maluka <dmaluka@...omium.org> wrote:


> This limitation will cause (unrelated) events created by modules that
> are insmoded after creating the instance to be also added to the
> instance. Why not filter those as well?

I did think of that. But that would be a separate patch. Where I would save
the string that is passed in, and whenever a new module is loaded, it would
only add the events if the events' system matches in the string. This would
also allow adding event systems that do not yet exist.

> 
> Besides that, the change looks nice to me.

Thanks, I'll make it into a more formal patch set.

-- Steve