linux-kernel - Re: [RFC 1/3] Unified NMI delayed call mechanism

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Message-ID: <20100618130921.GC9045@basil.fritz.box>
Date:	Fri, 18 Jun 2010 15:09:22 +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,
	Chris Mason <chris.mason@...cle.com>
Subject: Re: [RFC 1/3] Unified NMI delayed call mechanism

> You generally want to pass more information along anyway, now your
> callback function needs to go look for it. Much better to pass a
> work_struct like thing around that is contained in the state it needs.

But how would you allocate the work queue in an NMI?

If it's only a single instance (like this bit) it can be always put
into a per cpu variable.

-Andi
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