linux-kernel - Re: [PATCH] trace: Add tracepoints to fs subsystem

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Message-ID: <BANLkTimochpX5Tzvj0Yz6Lb+3-tcFuZXqQ@mail.gmail.com>
Date:	Mon, 25 Apr 2011 16:52:05 -0700
From:	Vaibhav Nagarnaik <vnagarnaik@...gle.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Ingo Molnar <mingo@...hat.com>,
	Michael Rubin <mrubin@...gle.com>,
	David Sharp <dhsharp@...gle.com>, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
	Jiaying Zhang <jiayingz@...gle.com>
Subject: Re: [PATCH] trace: Add tracepoints to fs subsystem

On Mon, Apr 25, 2011 at 8:39 AM, Steven Rostedt <rostedt@...dmis.org> wrote:
> On Mon, 2011-04-25 at 11:35 +0900, KOSAKI Motohiro wrote:
>> > From: Jiaying Zhang <jiayingz@...gle.com>
>> >
>> > Many fs tracepoints can now be traced via ftrace, however there are a
>> > few other tracepoints needed. This patch adds entry and exit tracepoints
>> > for a few additional functions, viz.:
>> > wait_on_buffer
>> > block_write_full_page
>> > mpage_readpages
>> > file_read
>>
>> Zero background description?
>>
>
> Good point.
>
> Could you please describe how this is useful, and how one can benefit
> from these tracepoints.
>
I am sending a new patch with a better description and using the template for
declaring events.

> -- Steve
>
>
>
>

Thanks
Vaibhav Nagarnaik
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