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Date: Mon, 17 Sep 2012 14:03:30 -0400
From: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
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To: Tejun Heo <tj@kernel.org>
CC: Steven Rostedt <rostedt@goodmis.org>, Jianpeng Ma <majianpeng@gmail.com>,
        fweisbec <fweisbec@gmail.com>, mingo <mingo@redhat.com>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        Li Zefan <lizf@cn.fujitsu.com>, Tao Ma <boyu.mt@taobao.com>,
        Jens Axboe <axboe@kernel.dk>, kosaki.motohiro@gmail.com
Subject: Re: Why blktrace didn't trace requests merge?
References: <201209171933464847623@gmail.com> <1347888148.13080.20.camel@gandalf.local.home> <20120917175534.GG18677@google.com>
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(9/17/12 1:55 PM), Tejun Heo wrote:
> (cc'ing Jens)
> 
> On Mon, Sep 17, 2012 at 09:22:28AM -0400, Steven Rostedt wrote:
>> On Mon, 2012-09-17 at 19:33 +0800, Jianpeng Ma wrote:
>>> Hi all:
>>> 	I used blktrace to trace some io.But i can't find requests merge. I searched the code and did't not find.
>>> 	Why? 
>>> 									
>>
>> No idea. I don't use blktrace much, but I Cc'd those that understand it
>> better than I.

backmerge/fronmerge event?