linux-kernel - Re: [PATCH -tip -v5] irq_work: generic hard-irq context callbacks

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Date:	Tue, 21 Sep 2010 20:20:51 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Paul Mackerras <paulus@...ba.org>
Cc:	Huang Ying <ying.huang@...el.com>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>,
	dhowells <dhowells@...hat.com>,
	Russell King <rmk@....linux.org.uk>,
	Kyle McMartin <kyle@...artin.ca>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	davem <davem@...emloft.net>,
	Linux-Arch <linux-arch@...r.kernel.org>
Subject: Re: [PATCH -tip -v5] irq_work: generic hard-irq context callbacks

On Tue, 2010-09-21 at 13:05 +1000, Paul Mackerras wrote:
> 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?

Sorry, I got my head in a twist, its fine.
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