Subject: Re: [PATCH v6 33/46] cris/smp: Use get/put_online_cpus_atomic() to prevent CPU offline

From: Jesper Nilsson <[email-masked]>
Date: Mon, 18 Feb 2013 14:07:12 +0100

On Mon, Feb 18, 2013 at 06:12:54PM +0530, Srivatsa S. Bhat wrote:
> Once stop_machine() is gone from the CPU offline path, we won't be able to
> depend on preempt_disable() or local_irq_disable() to prevent CPUs from
> going offline from under us.
> 
> Use the get/put_online_cpus_atomic() APIs to prevent CPUs from going offline,
> while invoking from atomic context.
> 
> Cc: Mikael Starvik <[email-masked]>

> Cc: [email-masked]
> Signed-off-by: Srivatsa S. Bhat <[email-masked]>

Acked-by: Jesper Nilsson <[email-masked]>

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- [email-masked]