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Date:	Sun, 13 Jul 2014 01:28:21 +0200
From:	Jiri Olsa <>
To:	Yann Droneaud <>
Cc:	Arnaldo Carvalho de Melo <>,
	Peter Zijlstra <>,
	Paul Mackerras <>,
	Ingo Molnar <>,
	Namhyung Kim <>,
	Andi Kleen <>,
	David Ahern <>,
	Frederic Weisbecker <>,
	Mike Galbraith <>,
	Stephane Eranian <>,
	Adrian Hunter <>,
	Benjamin Herrenschmidt <>,
	Michael Ellerman <>,
	Peter Zijlstra <>,, Ingo Molnar <>
Subject: Re: [PATCHv6] perf tools: enable close-on-exec flag on perf file

On Mon, Jun 30, 2014 at 10:28:47PM +0200, Yann Droneaud wrote:
> In commit a21b0b354d4a ('perf: Introduce a flag to enable
> close-on-exec in perf_event_open()'), flag PERF_FLAG_FD_CLOEXEC
> was added to perf_event_open(2) syscall to allows userspace
> to atomically enable close-on-exec behavor when creating
> the file descriptor.
> This patch makes perf tools use the new flag if supported
> by the kernel, so that the event file descriptors got
> automatically closed if perf tool exec a sub-command.
> Cc: Peter Zijlstra <>
> Cc: Arnaldo Carvalho de Melo <>
> Cc: Jiri Olsa <>
> Cc: Andi Kleen <>
> Cc: Ingo Molnar <>
> Signed-off-by: Yann Droneaud <>
> ---
> Hi,
> I've addressed the issues reported by Jiri Olsa,
> please have a look at the update patch.

I'll queue this one

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