linux-kernel - Re: [PATCH 2/5] debugfs: function to know if debugfs is initialized

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Message-ID: <20090323160811.GB27151@elte.hu>
Date:	Mon, 23 Mar 2009 17:08:11 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Greg KH <gregkh@...e.de>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/5] debugfs: function to know if debugfs is initialized


* Greg KH <gregkh@...e.de> wrote:

> On Mon, Mar 23, 2009 at 09:18:05AM +0100, Ingo Molnar wrote:
> > 
> > * Frederic Weisbecker <fweisbec@...il.com> wrote:
> > 
> > > With ftrace, some tracers are registered in early initcalls
> > > and attempt to create files on the debugfs filesystem.
> > > Depending on when they are activated, they can try to create their
> > > file at any time. Some checks can be done on the tracing area
> > > but providing a helper to know if debugfs is registered make it
> > > really more easy.
> > > 
> > > Cc: Greg Kroah-Hartman <gregkh@...e.de>
> > > Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
> > > ---
> > >  fs/debugfs/inode.c      |   16 ++++++++++++++++
> > >  include/linux/debugfs.h |    8 ++++++++
> > >  2 files changed, 24 insertions(+), 0 deletions(-)
> > 
> > Greg, is this patch is fine with you?
> 
> This patch is fine with me, feel free to add:
> 	Acked-by: Greg Kroah-Hartman <gregkh@...e.de>
> to it.
> 
> > If yes, then would you mind if we picked this up into the tracing 
> > tree - as a subsequent fix-patch relies on it. There's no debugfs 
> > patches pending that i can see that would conflict with this.
> 
> Yes, that is fine, please take it through the tracing tree.

Thanks Greg!

	Ingo
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