On Wed, Mar 29, 2017 at 09:44:41PM +0200, Jesper Dangaard Brouer wrote:
> @@ -2481,7 +2481,11 @@ void free_hot_cold_page(struct page *page, bool cold)
> unsigned long pfn = page_to_pfn(page);
> int migratetype;
>
> - if (in_interrupt()) {
> + /*
> + * Exclude (hard) IRQ and NMI context from using the pcplists.
> + * But allow softirq context, via disabling BH.
> + */
> + if (in_irq() || irqs_disabled()) {
Why do you need irqs_disabled() ? Also, your comment is stale, it still
refers to NMI context.
> __free_pages_ok(page, 0);
> return;
> }
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