linux-kernel - Re: [RFC PATCH 00/10] Cleanup ipi_call_lock[_irq]()/ipi_call_unlock[

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Message-ID: <4FC48A14.70008@linux.vnet.ibm.com>
Date:	Tue, 29 May 2012 14:04:28 +0530
From:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Yong Zhang <yong.zhang0@...il.com>, linux-kernel@...r.kernel.org,
	ralf@...ux-mips.org, sshtylyov@...sta.com, david.daney@...ium.com,
	nikunj@...ux.vnet.ibm.com, paulmck@...ux.vnet.ibm.com,
	axboe@...nel.dk, mingo@...nel.org, tglx@...utronix.de,
	akpm@...ux-foundation.org
Subject: Re: [RFC PATCH 00/10] Cleanup ipi_call_lock[_irq]()/ipi_call_unlock[_irq]()

On 05/29/2012 01:58 PM, Peter Zijlstra wrote:


> That said, is there an alternative to stop_machine on the down side?
> 
> I guess flipping the cpu offline and then doing synchronize_sched()
> should suffice.
> 


Yes I think so. Even Paul McKenney had suggested this.

Regards,
Srivatsa S. Bhat

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