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Date: Tue, 21 Sep 2010 13:05:23 +1000
From: Paul Mackerras <paulus@samba.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Huang Ying <ying.huang@intel.com>, Ingo Molnar <mingo@elte.hu>,
        "H. Peter Anvin" <hpa@zytor.com>,
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        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        davem <davem@davemloft.net>, Linux-Arch <linux-arch@vger.kernel.org>
Subject: Re: [PATCH -tip -v5] irq_work: generic hard-irq context callbacks
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On Mon, Sep 20, 2010 at 11:13:01AM +0200, Peter Zijlstra wrote:
> On Mon, 2010-09-20 at 14:20 +1000, Paul Mackerras wrote:
> > Actually these days we do it by setting the decrementer (the built-in
> > timer facility) to generate an interrupt immediately (well, within one
> > timebase tick, i.e. a small number of nanoseconds).
> 
> Then that is something that wants curing I guess.. 

Curing?  Why?  How?

Paul.