From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5EF51C10F14 for ; Tue, 16 Apr 2019 13:45:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 386A421924 for ; Tue, 16 Apr 2019 13:45:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729404AbfDPNpP (ORCPT ); Tue, 16 Apr 2019 09:45:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:44698 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726605AbfDPNpP (ORCPT ); Tue, 16 Apr 2019 09:45:15 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5DD5921924; Tue, 16 Apr 2019 13:45:11 +0000 (UTC) Date: Tue, 16 Apr 2019 09:45:09 -0400 From: Steven Rostedt To: Karim Yaghmour Cc: Joel Fernandes , Greg Kroah-Hartman , Kees Cook , Olof Johansson , Alexei Starovoitov , Joel Fernandes , Linux Kernel Mailing List , Qais Yousef , Dietmar Eggemann , Manoj Rao , Andrew Morton , Alexei Starovoitov , atish patra , Daniel Colascione , Dan Williams , Guenter Roeck , Jonathan Corbet , Android Kernel Team , "open list:DOCUMENTATION" , "open list:KERNEL SELFTEST FRAMEWORK" , linux-trace-devel@vger.kernel.org, Masahiro Yamada , Masami Hiramatsu , Randy Dunlap , Shuah Khan , Yonghong Song Subject: Re: [PATCH v5 1/3] Provide in-kernel headers to make extending kernel easier Message-ID: <20190416094509.1af6326b@gandalf.local.home> In-Reply-To: References: <20190408203601.GF133872@google.com> <20190411031540.ehezr6kq7ouobpzx@ast-mbp.dhcp.thefacebook.com> <20190415104109.64d914f3@gandalf.local.home> <20190416083306.5646a687@gandalf.local.home> <20190416124939.GB6027@kroah.com> <20190416130440.GA7944@localhost> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-trace-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org On Tue, 16 Apr 2019 09:32:37 -0400 Karim Yaghmour wrote: > >>> 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. > >> > >> As horrible as that suggestion is, it does kind of make sense :) > >> > >> We can't put this in debugfs as that's only for debugging and systems > >> should never have that mounted for normal operations (users want to > >> build ebpf programs), and /proc really should be for processes but that > >> horse is long left the barn. > >> > >> But, I'm willing to consider putting this either in a system-fs-like > >> filesystem, or just in sysfs itself, we do have /sys/kernel/ to play > >> around in if the main objection is that we should not be cluttering up > >> /proc with stuff like this. > >> > > > > I am ok with the suggestion of /sys/kernel for the archive. That also seems > > to fit well with the idea that the headers are kernel related and probably > > belong here more strictly speaking, than /proc. > > This makes sense. And if it alleviates concerns regarding extending > /proc ABIs then might as well switch to this. > > Olof, what do you think of this? BTW, the name "tarballs" was kind of a joke. Probably should come up with a better name. Although, I'm fine with tarballsfs ;-) -- Steve