linux-kernel - Re: Unified tracing buffer

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Date:	Tue, 23 Sep 2008 07:00:38 -0700
From:	"Martin Bligh" <mbligh@...gle.com>
To:	"Tom Zanussi" <zanussi@...cast.net>
Cc:	"Peter Zijlstra" <a.p.zijlstra@...llo.nl>,
	prasad@...ux.vnet.ibm.com,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Mathieu Desnoyers" <compudj@...stal.dyndns.org>,
	"Steven Rostedt" <rostedt@...dmis.org>, od@...e.com,
	"Frank Ch. Eigler" <fche@...hat.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>, hch@....de,
	"David Wilder" <dwilder@...ibm.com>
Subject: Re: Unified tracing buffer

> - get rid of anything having to do with padding, nobody needs it and its
> only affect has been to horribly distort and complicate a lot of the
> code
> - get rid of sub-buffers, they just cause confusion
> - get rid of mmap, nobody uses it
> - no sub-buffers and no mmap support means we can get rid of most of the
> callbacks, and a lot of API confusion along with them
> - add relay flags - they probably should have been used from the
> beginning and options made explicit instead of being shoehorned into the
> callback functions.

Actually, I think if you did all that, it'd be pretty close to what we
want anyway ...
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