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Date: Tue, 30 Sep 2008 14:22:45 -0400 (EDT)
From: Steven Rostedt <rostedt@goodmis.org>
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To: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
cc: Martin Bligh <mbligh@google.com>, Peter Zijlstra <a.p.zijlstra@chello.nl>,
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       "Frank Ch. Eigler" <fche@redhat.com>,
       Andrew Morton <akpm@linux-foundation.org>, hch@lst.de,
       David Wilder <dwilder@us.ibm.com>, Tom Zanussi <zanussi@comcast.net>
Subject: Re: [RFC PATCH] LTTng relay buffer allocation, read, write
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On Tue, 30 Sep 2008, Mathieu Desnoyers wrote:
> 
> In Steven's scheme, the event IDs in the 4 bytes are reserved for
> (useless) internal use ;) They can therefore not be used for specific
> tracer event IDs, which I think is a misuse of the precious bits
> otherwise available to store really useful event IDs.

I'm using them, so they must not be totally useless. ;-)

But ftrace has its own event ids and I don't want the ring buffer to ever 
have to know about them.

-- Steve