linux-kernel - Re: [RFC PATCH 3/4] perf/core: Split up pinned and non pinned processing

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Date:	Tue, 10 Nov 2009 06:11:41 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [RFC PATCH 3/4] perf/core: Split up pinned and non pinned
 processing

* Frederic Weisbecker <fweisbec@...il.com> wrote:

> Split up pinned and non-pinned events processing in two helpers
> so that it's more flexible to handle them seperately.

> +static void
> +__perf_event_sched_in_volatile(struct perf_event_context *ctx,
> +			       struct perf_cpu_context *cpuctx, int cpu)

Small naming suggestion: 'volatile' is a C keyword and rarely used 
outside of that context in the kernel, which makes this function name a 
bit confusing.

So instead of pinned/volatile, a pinned/flexible naming would be more 
readable, i.e. __perf_event_sched_in_flexible() or so.

Also, most of the static functions in kernel/perf_event.c could lose 
their perf_event_ prefix - we already know it's a perf thing, right? 
That will shorten quite a few function names there.

These functions would turn into __sched_in_pinned()/__sched_in_flexible().

Agreed?

	Ingo
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