linux-kernel - Re: PATCH [0/4] perf: clean-up of power events API

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Date:	Tue, 19 Oct 2010 13:45:01 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Thomas Renninger <trenn@...e.de>
Cc:	Arjan van de Ven <arjan@...ux.intel.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Tejun Heo <tj@...nel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Pierre Tardy <tardyp@...il.com>,
	Jean Pihet <jean.pihet@...oldbits.com>,
	linux-trace-users@...r.kernel.org,
	linux-pm@...ts.linux-foundation.org, rjw@...k.pl,
	linux-omap@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>,
	Kevin Hilman <khilman@...prootsystems.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frank Eigler <fche@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: PATCH [0/4] perf: clean-up of power events API


* Thomas Renninger <trenn@...e.de> wrote:

> > Most definitely. It's no accident that it took such a long time for this issue 
> > to be raised in the first place. It's a rare occurance -
>
> Do you agree that this occurance happened now and these events should get cleaned 
> up before ARM and other archs make use of the broken interface?
>
> If not, discussing this further, is a big waste of time... and Jean would have to 
> try to adapt his ARM code on the broken ABI...

The discussion seems to have died down somewhat. Please re-send to lkml the latest 
patches you have to remind everyone of the latest state of things - the merge window 
is getting near.

My only compatibility/ABI point is basically that it shouldnt break _existing_ 
tracepoints (and users thereof). If your latest bits meet that then it ought to be a 
good first step. You are free to (and encouraged to) introduce more complete sets of 
events.

Thanks,

	Ingo
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