linux-kernel - Re: [PATCH 09/14] perf ftrace: Add 'record' sub-command

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Message-ID: <517A84B2.40209@gmail.com>
Date:	Fri, 26 Apr 2013 07:44:18 -0600
From:	David Ahern <dsahern@...il.com>
To:	Namhyung Kim <namhyung@...nel.org>
CC:	Jiri Olsa <jolsa@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 09/14] perf ftrace: Add 'record' sub-command

On 4/25/13 12:24 AM, Namhyung Kim wrote:
> But it looks there's a race between cond_wait() and cond_broatcast().
> I'll take a look at that.

Why not use eventfd or a pipe for the signalling instead?

David
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