[PATCH 3/7] ppc64: EEH Add event/internal state statistics

[Paul Mackerras]

Linas writes:

> 03-eeh-statistics.patch

> +	if (!dn) {
> +		__get_cpu_var(no_dn)++;

We have to make sure we are not preemptible when we use
__get_cpu_var, since it uses smp_processor_id().  It's not clear to me
that we have ensured that in every case where we use __get_cpu_var.
Are you sure that we hold a spinlock, or are at interrupt level, or
have explicitly disabled preemption at every point where we use
__get_cpu_var?

Regards,
Paul.