Re: [patch V2 16/17] init: Introduce SYSTEM_SCHEDULING state

Boris Ostrovsky
2017-05-17T21:16:31Z

On 05/16/2017 02:42 PM, Thomas Gleixner wrote:
> might_sleep() debugging and smp_processor_id() debugging should be active
> right after the scheduler starts working. The init task can invoke
> smp_processor_id() from preemptible context as it is pinned on the boot cpu
> until sched_smp_init() removes the pinning and lets it schedule on all non
> isolated cpus.
>
> Add a new state which allows to enable those checks earlier and add it to
> the xen do_poweroff() function.
>
> No functional change.
>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> Cc: Juergen Gross <jgross@suse.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>