linux-kernel - Re: [RFC patch 5/5] trace event sched: remove TP_perf

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Message-ID: <1294221486.2016.212.camel@laptop>
Date:	Wed, 05 Jan 2011 10:58:06 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [RFC patch 5/5] trace event sched: remove TP_perf_assign

On Tue, 2011-01-04 at 18:16 -0500, Mathieu Desnoyers wrote:
> plain text document attachment (trace-event-sched-remove-perf-count.patch)
> The TP_perf_assign part of 2 scheduler TRACE_EVENT are not used and don't act as
> TRACE_EVENT fields per se.

Hrm,. they should be used, include/trace/ftrace.h uses __perf_count().
If it doesn't actually work them something broke.

So NAK on removing them.
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