linux-kernel - Re: [RFC PATCH]debugfs:Fix terminology inconsistency of dir name to mount debugfs filesystem.

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Date:	Wed, 27 May 2009 12:13:10 -0700
From:	Greg KH <greg@...ah.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Jaswinder Singh Rajput <jaswinder@...nel.org>,
	GeunSik Lim <leemgs1@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>, trivial@...nel.org,
	balagi@...tmail.de, bgamari@...il.com, Ingo Molnar <mingo@...e.hu>,
	inaky.perez-gonzalez@...el.com
Subject: Re: [RFC PATCH]debugfs:Fix terminology inconsistency of dir name
	to mount debugfs filesystem.

On Wed, May 27, 2009 at 02:22:37PM -0400, Steven Rostedt wrote:
> 
> On Wed, 27 May 2009, Jaswinder Singh Rajput wrote:
> 
> > Hello Steve,
> > 
> > On Tue, 2009-05-26 at 22:38 -0400, Steven Rostedt wrote:
> > 
> > > If you look in Documentation/trace/ftrace.txt I have:
> > > 
> > > ===
> > > To mount the debugfs system:
> > > 
> > >   # mkdir /debug
> > >   # mount -t debugfs nodev /debug
> > > 
> > > ( Note: it is more common to mount at /sys/kernel/debug, but for
> > >   simplicity this document will use /debug)
> > > ===
> > > 
> > 
> > Please standardize Documentation/trace/ftrace.txt and avoid confusion to
> > users:
> > 
> > ===
> > To mount the debugfs system:
> > 
> >   # mount -t debugfs nodev /sys/kernel/debug
> > ===
> 
> I really don't want to do that. Then I would need to show
> 
>  # echo function_graph > /sys/kernel/debug/current_trace
> 
> Which I really do not like. I state that the common place to mount it is 
> in /sys/kernel/debug, But my examples are much easier to understand if
> I just do: # echo function_graph > /debug/current_trace

It's not just the "common" place, it is the DOCUMENTED PLACE.

I'm sorry you have to type a long path, perhaps you wish to invest in a
tab key for auto-completion :)

Again, distros already mount debugfs at this location, please don't
confuse people just because you are annoyed at the length of the path.

thanks,

greg k-h
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