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Date:   Tue, 16 Apr 2019 08:33:06 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Olof Johansson <olof@...om.net>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Joel Fernandes <joelaf@...gle.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Qais Yousef <qais.yousef@....com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Manoj Rao <linux@...ojrajarao.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexei Starovoitov <ast@...nel.org>,
        atish patra <atishp04@...il.com>,
        Daniel Colascione <dancol@...gle.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <groeck@...omium.org>,
        Jonathan Corbet <corbet@....net>,
        Karim Yaghmour <karim.yaghmour@...rsys.com>,
        Android Kernel Team <kernel-team@...roid.com>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        linux-trace-devel@...r.kernel.org,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Shuah Khan <shuah@...nel.org>, Yonghong Song <yhs@...com>
Subject: Re: [PATCH v5 1/3] Provide in-kernel headers to make extending
 kernel easier

On Mon, 15 Apr 2019 22:50:10 -0500
Kees Cook <keescook@...omium.org> wrote:

> On Mon, Apr 15, 2019 at 9:41 AM Steven Rostedt <rostedt@...dmis.org> wrote:
> > I agree with this assessment. We shouldn't use config.gz as precedence
> > for this solution. config.gz should have been in debugfs to begin with,
> > but I don't believe debugfs was around when config.gz was introduced.
> > (Don't have time to look into the history of the two).  
> 
> I don't agree with this: /proc/config.gz is used by a lot of tools
> that do sanity-check of running systems. This isn't _debugging_...
> it's verifying correct kernel builds. It's a fancy version of checking
> /proc/version.
> 

Then we should perhaps make a new file system call tarballs ;-)

 /sys/kernel/tarballs/

and place everything there. That way it removes it from /proc (which is
the worse place for that) and also makes it something other than debug.
That's what I did for tracefs.

-- Steve

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