linux-kernel - Re: [RFC 5/5] Use NMI return notifier in perf pending

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Message-ID: <1277359218.1875.829.camel@laptop>
Date:	Thu, 24 Jun 2010 08:00:18 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Huang Ying <ying.huang@...el.com>
Cc:	Ingo Molnar <mingo@...e.hu>, "H.PeterA" <"nvin hpa"@zytor.com>,
	linux-kernel@...r.kernel.org, Andi Kleen <andi@...stfloor.org>
Subject: Re: [RFC 5/5] Use NMI return notifier in perf pending

On Thu, 2010-06-24 at 11:04 +0800, Huang Ying wrote:
> Use general NMI return notifier mechanism to replace the self
> interrupt used in perf pending.
> 
> Known issue: don't know how to deal with SPARC architecture.

NAK I want and need hardirq context for the callback
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