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Message-Id: <20090524224509.0855.A69D9226@jp.fujitsu.com>
Date:	Sun, 24 May 2009 22:47:31 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	kosaki.motohiro@...fujitsu.com, Li Zefan <lizf@...fujitsu.com>,
	Jeff Moyer <jmoyer@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	Jens Axboe <jens.axboe@...cle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Tom Zanussi <tzanussi@...il.com>,
	"Theodore Ts'o" <tytso@....edu>,
	Steven Whitehouse <swhiteho@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH] convert block trace points to TRACE_EVENT()

> On Sun, May 24, 2009 at 02:15:05PM +0900, KOSAKI Motohiro wrote:
> > > Is there any good reason for keeping the ftrace plugin once we have
> > > the fully function event tracer support for the block events?
> > 
> > waiting userland blktrace tool convert using event tracer? 
> 
> blktrace(8) uses the ioctl interface, which we should keep for a long
> time for backwards compatiblity.  

Ah, I misunderstand your point. sorry.
I though you suggested to remove ioctl. but it's reverse. ok. :)

So, I guess same formatting make easy understanding for administrator, maybe.





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