linux-kernel - Re: [PATCH] oprofile: hotplug cpu fix

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Message-ID: <20081017090405.GP1029@erda.amd.com>
Date:	Fri, 17 Oct 2008 11:04:05 +0200
From:	Robert Richter <robert.richter@....com>
To:	Chris J Arges <arges@...ux.vnet.ibm.com>
CC:	oprofile-list@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	Maynard Johnson <maynardj@...ibm.com>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH] oprofile: hotplug cpu fix

On 15.10.08 12:09:45, Chris J Arges wrote:
> From 60f07301d3c387a0405becccbdc0cfb7e99ecf39 Mon Sep 17 00:00:00 2001
> From: Chris J Arges <arges@...ux.vnet.ibm.com>
> Date: Wed, 15 Oct 2008 11:03:39 -0500
> Subject: [PATCH] oprofile: hotplug cpu fix
>  This patch addresses problems when hotplugging cpus while profiling.
>  Instead of allocating only online cpus, all possible cpu buffers are
>  allocated, which allows cpus to be onlined during operation. If a cpu is
>  offlined before profiling is shutdown wq_sync_buffer checks for this
>  condition then cancels this work and does not sync this buffer.
> 

Applied to oprofile/oprofile-for-tip. Thanks, Chris.

-Robert

-- 
Advanced Micro Devices, Inc.
Operating System Research Center
email: robert.richter@....com

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