linux-kernel - Re: [RFC][PATCH 0/5] tracing: Add new file system tracefs

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Message-ID: <20150121204725.71933044@grimm.local.home>
Date:	Wed, 21 Jan 2015 20:47:25 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, Al Viro <viro@...IV.linux.org.uk>,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [RFC][PATCH 0/5] tracing: Add new file system tracefs

On Thu, 22 Jan 2015 07:00:07 +0800
Greg Kroah-Hartman <gregkh@...uxfoundation.org> wrote:

> Any chance you can use kernfs as your "basis" for this filesystem
> instead of having to roll all of your own functions?  I'm slowly
> working on moving debugfs to it, and it should save a lot of code
> there, as well as fixing some "problems" we have in debugfs file
> lifetimes when things are removed from the system.

Someone else told me about doing this too. I'll take a look at it.

> 
> And given the number of mistakes in this submission, I'll wait for a
> v2 before really reading the code :)

Well, if I switch to using kernfs, I expect we should ignore this
version as well, as I would think it would make this series obsolete.

Also, if that's the case, I guess I could keep all the "tracefs" code
in kernel/tracing and not place it in the fs/ directory? Kind of like
what cgroups does.

-- Steve
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