linux-kernel - Re: [PATCH] arm: irq: fix the affinity when migrate a irq

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Date:	Fri, 15 Aug 2014 09:48:12 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Neil Zhang <zhangwm@...vell.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] arm: irq: fix the affinity when migrate a irq

On Fri, Aug 15, 2014 at 03:31:57PM +0800, Neil Zhang wrote:
> Commit ffde1de64012 ("irqchip: Gic: Support forced affinity setting")
> has enable the forcing cpu affinity of interrupts for gic.
> 
> The current code of migrate_one_irq will pass the current affinity mask
> to irq_set_affinity with force is true, it may select the cpu being
> offlined as the target CPU again, then the interrupt won't be migrated
> correctly.

NAK.

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