linux-kernel - Re: [PATCH 2/2] tracefs: Only clobber mode/uid/gid on remount if asked

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Message-ID: <20220907174813.182df339@gandalf.local.home>
Date:   Wed, 7 Sep 2022 17:48:13 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Brian Norris <briannorris@...omium.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] tracefs: Only clobber mode/uid/gid on remount if
 asked

On Wed, 7 Sep 2022 17:46:04 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> >   # Don't change /sys/kernel/tracing/ permissions on automount.
> >   umount /sys/kernel/debug/tracing/  
> 
> BTW, I noticed that the above doesn't do anything. That is,
> you cannot unmount tracefs from /sys/kernel/debug/tracing.

I just saw your new email. I guess that's just how you were triggering the
automount, by unmounting it. Right?

A lot of assumptions about what people may know ;-)

I never tried it, so I really didn't know what the result of that would be.

-- Steve