linux-kernel - Re: Unified tracing buffer

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Date:	Tue, 23 Sep 2008 22:50:15 -0500
From:	Tom Zanussi <zanussi@...cast.net>
To:	Martin Bligh <mbligh@...gle.com>
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


On Tue, 2008-09-23 at 07:00 -0700, Martin Bligh wrote:
> > - 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 ...

OK, then, I'll continue with the cleanup patchset and see where it
goes...

Tom

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