>>> On 02.04.19 at 07:34, <jgr...@suse.com> wrote:
> cpu_disable_scheduler() is being called from __cpu_disable() today.
> There is no need to execute it on the cpu just being disabled, so use
> the CPU_DEAD case of the cpu notifier chain. Moving the call out of
> stop_machine() context is fine, as we just need to hold the domain RCU
> lock and need the scheduler percpu data to be still allocated.
> 
> Add another hook for CPU_DOWN_PREPARE to bail out early in case
> cpu_disable_scheduler() would fail. This will avoid crashes in rare
> cases for cpu hotplug or suspend.
> 
> Signed-off-by: Juergen Gross <jgr...@suse.com>
> Reviewed-by: Dario Faggioli <dfaggi...@suse.com>

Acked-by: Jan Beulich <jbeul...@suse.com>



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