From: Arnd Bergmann <arnd@arndb.de>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>,
Dan Carpenter <error27@gmail.com>, Greg KH <gregkh@suse.de>,
Kees Cook <kees.cook@canonical.com>,
linux-kernel@vger.kernel.org, Eugene Teo <eugeneteo@kernel.sg>,
Ralph Campbell <infinipath@qlogic.com>,
Roland Dreier <roland@kernel.org>,
Sean Hefty <sean.hefty@intel.com>,
Hal Rosenstock <hal.rosenstock@gmail.com>,
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Miklos Szeredi <miklos@szeredi.hu>,
"J. Bruce Fields" <bfields@fieldses.org>,
Neil Brown <neilb@suse.de>, Matthew Wilcox <matthew@wil.cx>,
James Morris <jmorris@namei.org>,
Stephen Smalley <sds@tycho.nsa.gov>,
Eric Paris <eparis@parisplace.org>,
Nick Piggin <npiggin@kernel.dk>,
Ian Campbell <ian.campbell@citrix.com>,
Jarkko Sakkinen <ext-jarkko.2.sakkinen@nokia.com>,
Tejun Heo <tj@kernel.org>,
Casey Schaufler <casey@schaufler-ca.com>
Subject: Re: [PATCH 2/2] debugfs: only allow root access to debugging interfaces
Date: Sat, 26 Feb 2011 12:50:33 +0100 [thread overview]
Message-ID: <201102261250.33914.arnd@arndb.de> (raw)
In-Reply-To: <20110224163844.GC888@home.goodmis.org>
On Thursday 24 February 2011, Steven Rostedt wrote:
> Currently things are still in a large flux, and I do not know how this
> will play out. Although the changes in /debugfs/tracing has toned down a
> lot, there's also the work going in on how to merge perf and ftrace.
> This may start changes as well, and perhaps deprecate interfaces. I
> don't know.
>
> Having debugfs as the main interface was not the goal of all this, but
> we seemed to have just gotten stuck with it.
Some time ago, I started a patch set to make it possible to unify a
lot of the pseudo file systems like debugfs, configfs and others, and
to also make it possible to trivially create another file_system_type,
basically creating a new root inode in the same way that you'd create a new
debugfs directory.
The patch set is probably quite outdated now, and I currently don't have
time to finish it, but I'd be happy to help someone else refresh it
to get it upstream.
Once that is done, you could move the tracing files and any other
parts of debugfs that have evolved into a proper API into their own
file systems without changing much code.
This would in particular make it possible to mount the main debugfs
root-only while you can have other rules for parts of it that have
become real interfaces.
Arnd
next prev parent reply other threads:[~2011-02-26 11:51 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-22 18:09 [PATCH 1/2] fs: pass root inode mode to simple_fill_super Kees Cook
2011-02-22 18:09 ` [PATCH 2/2] debugfs: only allow root access to debugging interfaces Kees Cook
2011-02-22 18:16 ` Kees Cook
2011-02-22 18:32 ` David Daney
2011-02-22 18:47 ` Kees Cook
2011-02-22 19:14 ` Greg KH
2011-02-22 19:25 ` Kees Cook
2011-02-22 19:34 ` Alan Cox
2011-02-22 19:50 ` Kees Cook
2011-02-22 19:53 ` David Daney
2011-02-22 20:16 ` Greg KH
2011-02-22 20:28 ` Kees Cook
2011-02-22 20:37 ` Greg KH
2011-02-22 20:54 ` Kees Cook
2011-02-25 0:22 ` Kees Cook
2011-02-25 0:35 ` Greg KH
2011-02-25 1:12 ` Kees Cook
2011-02-25 3:31 ` Greg KH
2011-02-25 3:39 ` Al Viro
2011-02-22 19:54 ` Kees Cook
2011-02-22 19:43 ` Greg KH
2011-02-22 19:13 ` Greg KH
2011-02-22 19:22 ` Kees Cook
2011-02-22 19:33 ` Greg KH
2011-02-22 20:29 ` Dan Carpenter
2011-02-22 20:33 ` Kees Cook
2011-02-22 20:58 ` Henrique de Moraes Holschuh
2011-02-24 16:38 ` Steven Rostedt
2011-02-24 17:34 ` Henrique de Moraes Holschuh
2011-02-26 11:50 ` Arnd Bergmann [this message]
2011-02-25 19:56 ` Greg KH
2011-02-25 20:40 ` Hugh Dickins
2011-02-25 20:57 ` Greg KH
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