linux-kernel - Re: [RFC][PATCH] irq

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Message-ID: <20100625222953.GE13421@basil.fritz.box>
Date:	Sat, 26 Jun 2010 00:29:53 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Huang Ying <ying.huang@...el.com>, Ingo Molnar <mingo@...e.hu>,
	"H.PeterA" <"nvin hpa"@zytor.com>, linux-kernel@...r.kernel.org,
	tglx <tglx@...utronix.de>, davem <davem@...emloft.net>,
	paulus <paulus@...ba.org>
Subject: Re: [RFC][PATCH] irq_work -v2

> perf has two different reasons to for the callback, what I do is set the
> state and enqueue, if its already enqueued the pending callback will
> handle both.
> 
> Its cheaper than having two callback structures per event.

Again it sounds like you just need a bit...
> 
> We can expose the claim/enqueue thing separately so that users can
> choose.

Yes it would be good to separate that, because I doubt other users
will require similar hacks.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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