linux-kernel - Re: [PATCH -tip -v4] irq_work: generic hard-irq context callbacks

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Date:	Mon, 13 Sep 2010 13:36:30 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Martin Schwidefsky <schwidefsky@...ibm.com>
Cc:	Huang Ying <ying.huang@...el.com>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>, paulus <paulus@...ba.org>,
	"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>, davem <davem@...emloft.net>,
	Linux-Arch <linux-arch@...r.kernel.org>
Subject: Re: [PATCH -tip -v4] irq_work: generic hard-irq context callbacks

On Mon, 2010-09-13 at 12:32 +0200, Martin Schwidefsky wrote:
> On Mon, 13 Sep 2010 14:50:48 +0800
> Huang Ying <ying.huang@...el.com> wrote:
> 
> > From:  Peter Zijlstra <a.p.zijlstra@...llo.nl>
> > 
> > In order for other NMI context users that want to run things from
> > hard-IRQ context, extract the perf_event callback mechanism.
> > 
> > Huang Ying: some fixes
> > 
> > This patch is only tested on x86 platform.
> > 
> > 
> > v4:
> > 
> > -rebased on latest -tip tree
> > 
> > Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> > Signed-off-by: Huang Ying <ying.huang@...el.com>
> 
> On s390 I get compile errors:
> 
> include/linux/perf_event.h:464:29: error: asm/perf_event.h: No such file or directory
> 
> Not a good idea to completely remove the perf_event.h from arch/s390/include/asm.
> With an empty header file the kernel at least compiles.

Urgh, Huang, could you at least compile test the other arches?
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