[PATCH v2 25/45] staging/octeon: Use get/put_online_cpus_atomic() to prevent CPU offline

[Greg Kroah-Hartman]

On Wed, Jun 26, 2013 at 02:00:04AM +0530, Srivatsa S. Bhat wrote:
> Once stop_machine() is gone from the CPU offline path, we won't be able
> to depend on disabling preemption 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: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> Cc: devel at driverdev.osuosl.org
> Acked-by: David Daney <david.daney at cavium.com>
> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat at linux.vnet.ibm.com>

Acked-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>