linux-kernel - Re: [RFC][PATCH 6/8] sched,idle: Avoid spurious wakeup IPIs

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Date:	Fri, 9 May 2014 19:20:41 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Catalin Marinas <catalin.marinas@....com>
Cc:	James Hogan <james.hogan@...tec.com>,
	"mingo@...nel.org" <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"luto@...capital.net" <luto@...capital.net>,
	"nicolas.pitre@...aro.org" <nicolas.pitre@...aro.org>,
	"daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
	"umgwanakikbuti@...il.com" <umgwanakikbuti@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Will Deacon <Will.Deacon@....com>,
	ARM Kernel List <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RFC][PATCH 6/8] sched,idle: Avoid spurious wakeup IPIs

On Fri, May 09, 2014 at 06:09:46PM +0100, Catalin Marinas wrote:
> On Fri, May 09, 2014 at 06:06:49PM +0100, Peter Zijlstra wrote:
> > Subject: arm64: Remove TIF_POLLING_NRFLAG
> > From: Peter Zijlstra <peterz@...radead.org>
> > Date: Fri May  9 19:04:00 CEST 2014
> > 
> > The only idle method for arm64 is WFI and it therefore
> > unconditionally requires the reschedule interrupt when idle.
> > 
> > Suggested-by: Catalin Marinas <catalin.marinas@....com>
> > Signed-off-by: Peter Zijlstra <peterz@...radead.org>
> 
> There's a tag with my name already but just in case you need another:
> 
> Acked-by: Catalin Marinas <catalin.marinas@....com>

The more the merrier :-)

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