linux-kernel - Re: [PATCH 06/21] perf: Add event toggle ioctl interface

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Date:	Wed, 25 Sep 2013 15:46:58 -0400 (EDT)
From:	Vince Weaver <vince@...ter.net>
To:	Jiri Olsa <jolsa@...hat.com>
cc:	linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH 06/21] perf: Add event toggle ioctl interface

On Wed, 25 Sep 2013, Jiri Olsa wrote:

> --- a/include/uapi/linux/perf_event.h
> +++ b/include/uapi/linux/perf_event.h
> @@ -325,6 +325,7 @@ struct perf_event_attr {
>  #define PERF_EVENT_IOC_SET_OUTPUT	_IO ('$', 5)
>  #define PERF_EVENT_IOC_SET_FILTER	_IOW('$', 6, char *)
>  #define PERF_EVENT_IOC_ID		_IOR('$', 7, u64 *)
> +#define PERF_EVENT_IOC_SET_TOGGLE	_IOW('$', 8, u64 *)

I'm pretty sure this should be __u64 or else it won't compile
in userspace.

Vince
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