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

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Message-ID: <20100624120226.GH578@basil.fritz.box>
Date:	Thu, 24 Jun 2010 14:02:26 +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
Subject: Re: [RFC][PATCH] irq_work

On Thu, Jun 24, 2010 at 01:57:29PM +0200, Peter Zijlstra wrote:
> On Thu, 2010-06-24 at 13:55 +0200, Andi Kleen wrote:
> > > but we don't have anything else that does that.
> > 
> > Actually we do, audit in syscalls and scheduling in interrupts and signals 
> > all work this way. Probably more at some point adding more code to this
> > path was very popular. 
> 
> That's the return to user path, nothing to do with softirqs. Add a TIF
> flag and call your function there.

It does that, but there are some cases where it's not enough.

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