linux-kernel - Re: [PATCH 2/2] perf: Disable the event on a truncated AUX record

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Message-ID: <87y47gucxn.fsf@ashishki-desk.ger.corp.intel.com>
Date:	Wed, 11 May 2016 13:05:56 +0300
From:	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
	Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...hat.com>,
	linux-kernel@...r.kernel.org, vince@...ter.net, eranian@...gle.com,
	Arnaldo Carvalho de Melo <acme@...radead.org>
Subject: Re: [PATCH 2/2] perf: Disable the event on a truncated AUX record

Peter Zijlstra <peterz@...radead.org> writes:

> On Wed, May 11, 2016 at 12:41:27PM +0300, Alexander Shishkin wrote:
>> Peter Zijlstra <peterz@...radead.org> writes:
>> >
>> > Does the userspace tool know how to deal with this and re-enable it?
>> 
>> Yes, it knows to ioctl(EVENT_ENABLE). Also, we're already doing the
>> disabling for the no-room-in-buffer condition in
>> perf_aux_output_begin().
>
> Awesome; gots them queued.

Much thanks!

Regards,
--
Alex