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Date:	Thu, 6 Mar 2014 11:31:58 +0100
From:	Peter Zijlstra <>
To:	Tony Lu <>
Cc:	Paul Mackerras <>, Ingo Molnar <>,
	Arnaldo Carvalho de Melo <>,
	Chris Metcalf <>,
	"" <>
Subject: Re: [PATCH 1/4] tile: Add support for handling PMC hardware

On Thu, Mar 06, 2014 at 10:12:54AM +0000, Tony Lu wrote:
> >One thing I didn't spot is a tile irq_work implementation; perf likes to
> >have one.
> We do not have tile irq_work for now. It seems like perf works fine
> even without the arch irq_work. Anyway, we will investigate it, and
> submit it as a separate patch when it gets ready.

Yeah, it does work; I have a note somewhere there's a race without it,
but I lost the relevant details.

I should probably try and reconstruct and either fix or at least
comment :/
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