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Date:	Mon, 30 Jan 2012 14:51:43 +0900
From:	Namhyung Kim <>
To:	Tejun Heo <>
CC:	Jens Axboe <>,,
	Steven Rostedt <>,
Subject: Re: [PATCH] block: add missing block_bio_complete() tracepoint


2012-01-30 11:53 AM, Tejun Heo wrote:
> Hello,
> On Mon, Jan 30, 2012 at 11:49:43 AM +0900, Namhyung Kim wrote:
>> Yes, blktrace will see both of completions for rq and bio's it
>> contains from now on, and I thought it's your intention? For the
>> bounced bio's, it'll see one more completion per bio.
> Umm... no, blktrace users shouldn't see confusing outputs.  My point
> was that we should leave raw tracepoints as raw monitor points so that
> they can provide raw data to different users and filter from
> blktrace.c so that the existing users aren't disturbed.

That means blktrace should not be changed, and not see duplicated 
completions for rq based drivers at all?

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