linux-kernel - Re: [PATCH] page-types.c: add a new argument of debugfs path

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Message-ID: <20110307113937.GB5080@localhost>
Date:	Mon, 7 Mar 2011 19:39:37 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Chen Gong <gong.chen@...ux.intel.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>,
	Clark Williams <williams@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
Subject: Re: [PATCH] page-types.c: add a new argument of debugfs path

On Mon, Mar 07, 2011 at 05:42:39PM +0800, KOSAKI Motohiro wrote:
> > page-types.c doesn't supply a way to specify the debugfs path and
> > the original debugfs path is not usual on most machines. Add a
> > new argument to set the debugfs path easily.
> > 
> > Signed-off-by: Chen Gong <gong.chen@...ux.intel.com>
> 
> Hi
> 
> Why do we need to set debugfs path manually? Instead I'd suggested to
> read /proc/mount and detect it automatically.

Good idea! And could reuse tools/perf/util/debugfs.c for finding out
and even audo-mounting debugfs. 

Thanks,
Fengguang
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