linux-kernel - Re: Unified tracing buffer

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Message-ID: <33307c790809191519k7c1bcce7y3fa37efc23b0f9c@mail.gmail.com>
Date:	Fri, 19 Sep 2008 15:19:28 -0700
From:	"Martin Bligh" <mbligh@...gle.com>
To:	"Martin Bligh" <mbligh@...gle.com>,
	"Randy Dunlap" <randy.dunlap@...cle.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 Frank Ch. Eigler" <fche@...hat.com>
Subject: Re: Unified tracing buffer

>> Sorry, probably lots of implicit assumptions in there that I forgot to explain
>
> Ids for event types. Either allocated dynamically, if the tracer needs
> new ids on each use, or statically assigned for others (like my fctrace
> or Steven's ftrace, I believe). Should we have a reserved range / registry
> for static allocation, maybe something like a very simple version of
> devices.txt?

Sure, but it's per-tracer, so hopefully won't be a big problem (eg fctrace
would have a different event-id namespace from blktrace)
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