From mboxrd@z Thu Jan  1 00:00:00 1970
From: guijianfeng@cn.fujitsu.com (Gui Jianfeng)
Date: Mon, 16 Feb 2009 11:48:20 +0800
Subject: [ltt-dev] [PATCH] LTTng: Make mark-control work in debugfs
In-Reply-To: <20090216121549.E80D.A69D9226@jp.fujitsu.com>
References: <20090213065458.GA20178@Krystal> <4998D2B6.7030001@cn.fujitsu.com>
	<20090216121549.E80D.A69D9226@jp.fujitsu.com>
Message-ID: <4998E204.3010405@cn.fujitsu.com>

KOSAKI Motohiro wrote:
>>   Hi Mathieu,
>>
>>   I guess it's not easy to implement the *mkdir* for marker control.
>>   But I have an alternative solution that we can add a control file
>>   *new_channel* at the same level of channel directories, and add a 
>>   control file *new_marker* in each channel directory.
>>   Making use of the following, we can create a marker even if it 
>>   doesn't exist by now.
>>
>>   cd /mnt/ltt/markers
>>   echo "channel_name" > new_channel
>>   echo "marker_name" > channel_name/new_marker
> 
> No.
> good user interface is important than easy implementation.
> 
> this UI is really ugly.

  Hi Kosaki-san,

  Thank you for your kind comments.
  I say *not easy* becasue debugfs itself doesn't support *mkdir* completely.
  If we are going to implement mkdir in marker control, we have to modify debugfs
  itself. IMHO, it's not reasonable and i guess most of the debugfs subsystems don't 
  like to see this change.
  On the other hand, it's very natual to use a control file to do something in debugfs.
  So, I choose this solution. I hope that what I say will clarify the situation.:)
  Mathieu, What do you say?


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-- 
Regards
Gui Jianfeng