linux-kernel - Re: [PATCH] Add some documentation on the perf sysfs ABI interface

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Message-ID: <20140914132351.GD1731@krava.redhat.com>
Date:	Sun, 14 Sep 2014 15:23:51 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	peterz@...radead.org, linux-kernel@...r.kernel.org,
	mingo@...nel.org, eranian@...gle.com,
	Andi Kleen <ak@...ux.intel.com>,
	Vince Weaver <vincent.weaver@...ne.edu>
Subject: Re: [PATCH] Add some documentation on the perf sysfs ABI interface

On Fri, Sep 12, 2014 at 03:34:19PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> Initial attempt of documenting the perf sysfs interface as
> an ABI. I also added some additional pointers hopefully useful
> to the users. Comments welcome.
> 
> Cc: Vince Weaver <vincent.weaver@...ne.edu>
> Cc: jolsa@...hat.com
> v2: Various fixes. Fix cmask/inv (Stephane) Fixes from Randy Dunlap.
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> ---
>  Documentation/ABI/stable/sysfs-devices-perf | 98 +++++++++++++++++++++++++++++
>  1 file changed, 98 insertions(+)
>  create mode 100644 Documentation/ABI/stable/sysfs-devices-perf
> 
> diff --git a/Documentation/ABI/stable/sysfs-devices-perf b/Documentation/ABI/stable/sysfs-devices-perf
> new file mode 100644
> index 0000000..3fd9bc6
> --- /dev/null
> +++ b/Documentation/ABI/stable/sysfs-devices-perf
> @@ -0,0 +1,98 @@
> +Perf events enumeration in sysfs
> +
> +The perf events subsystem exports the format of hardware performance
> +counter events supported by perf events. The events can be accessed
> +using the perf_event_open() syscall. Each perf directory in devices
> +represents a distinct PMU (Performance Monitoring Unit), but not all
> +directories in this file are perf directories.

s/in this file/in this directory/ ?

otherwise it looks ok to me

jirka
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