linux-kernel - Re: [ltt-dev] [PATCH 1/2] Make lttctl mount debugfs automatically

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Message-ID: <20090113235419.GA20644@suse.de>
Date:	Tue, 13 Jan 2009 15:54:19 -0800
From:	Greg KH <gregkh@...e.de>
To:	Mathieu Desnoyers <compudj@...stal.dyndns.org>
Cc:	Zhaolei <zhaolei@...fujitsu.com>, ltt-dev@...ts.casi.polymtl.ca,
	linux-kernel@...r.kernel.org, Andrew Morton <akpm@...l.org>
Subject: Re: [ltt-dev] [PATCH 1/2] Make lttctl mount debugfs automatically

On Thu, Jan 08, 2009 at 10:30:22PM -0500, Mathieu Desnoyers wrote:
> * Zhaolei (zhaolei@...fujitsu.com) wrote:
> > * From: "Mathieu Desnoyers" <compudj@...stal.dyndns.org>
> > >* Zhaolei (zhaolei@...fujitsu.com) wrote:
> > >> * From: "Pierre-Marc Fournier" <pierre-marc.fournier@...ymtl.ca>
> > >> > Zhaolei wrote:
> > >> >> lttctl need debugfs mounted,
> > >> >> This patch make lttctl mount debugfs automatically when it is not mounted.
> > >> >> 
> > >> > 
> > >> > Isn't having a utility such as lttctl mount filesystems against standard
> > >> > unix semantics? Can you give an example of another standard command that
> > >> > uses a filesystem and that tries to mount it if it isn't already
> > >> > mounted? 
> > >> Hello, Pierre-Marc,
> > >> 
> > >> I can give a an example.
> > >> It is SystemTap.
> > >> 
> > > 
> > > No offence, but can you find an example which is not explicitly
> > > described as "bad taste" example by many people in the Linux kernel
> > > community ?
> > Hello, Mathieu
> > 
> > I can't find another example of mounting debugfs automatically.

Have you looked?  openSUSE mounts it automatically, and I think Fedora
also does so.

thanks,

greg k-h
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