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Date: Tue, 23 Sep 2008 07:00:38 -0700
From: "Martin Bligh" <mbligh@google.com>
To: "Tom Zanussi" <zanussi@comcast.net>
Subject: Re: Unified tracing buffer
Cc: "Peter Zijlstra" <a.p.zijlstra@chello.nl>, prasad@linux.vnet.ibm.com,
       "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
       "Linus Torvalds" <torvalds@linux-foundation.org>,
       "Thomas Gleixner" <tglx@linutronix.de>,
       "Mathieu Desnoyers" <compudj@krystal.dyndns.org>,
       "Steven Rostedt" <rostedt@goodmis.org>, od@suse.com,
       "Frank Ch. Eigler" <fche@redhat.com>,
       "Andrew Morton" <akpm@linux-foundation.org>, hch@lst.de,
       "David Wilder" <dwilder@us.ibm.com>
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> - 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 ...