linux-kernel - Re: [PATCH] docs: ftrace: always use canonical ftrace path

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Message-ID: <20230126153438.5e98da15@gandalf.local.home>
Date:   Thu, 26 Jan 2023 15:34:38 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Jonathan Corbet <corbet@....net>
Cc:     Ross Zwisler <zwisler@...omium.org>,
        Linux Trace Devel <linux-trace-devel@...r.kernel.org>,
        linux-kernel@...r.kernel.org, Ross Zwisler <zwisler@...gle.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Tom Zanussi <zanussi@...nel.org>
Subject: Re: [PATCH] docs: ftrace: always use canonical ftrace path

On Thu, 26 Jan 2023 11:28:38 -0700
Jonathan Corbet <corbet@....net> wrote:

> Ross Zwisler <zwisler@...omium.org> writes:
> 
> > The canonical location for the tracefs filesystem is at /sys/kernel/tracing.
> >
> > But, from Documentation/trace/ftrace.rst:
> >
> >   Before 4.1, all ftrace tracing control files were within the debugfs
> >   file system, which is typically located at /sys/kernel/debug/tracing.
> >   For backward compatibility, when mounting the debugfs file system,
> >   the tracefs file system will be automatically mounted at:
> >
> >   /sys/kernel/debug/tracing
> >
> > Many parts of Documentation still reference this older debugfs path, so
> > let's update them to avoid confusion.
> >
> > Signed-off-by: Ross Zwisler <zwisler@...gle.com>  
> 
> So this seems like a good cleanup to me.  Unless somebody objects, I'll
> apply it to the docs tree in the near future.
>

Reviewed-by: Steven Rostedt (Google) <rostedt@...dmis.org>

Doing a quick 'git grep 'debug/tracing' there's a lot more that needs to be
cleaned up, but that's outside the Documentation directory.

Ross, care to follow through with those? ;-)

Thanks Jon and Ross,

-- Steve