On Wed, 19 Oct 2016 00:40:42 +0900
Sergey Senozhatsky <sergey.senozhat...@gmail.com> wrote:
> +
> +/*
> + * Returns with local IRQs disabled.
> + * Can be preempted by NMI.
It does? How does it return with IRQs disabled?
> + */
> +void __printk_safe_enter(void)
> +{
> + this_cpu_inc(printk_safe_context);
> +}
> +
> +/*
> + * Restores local IRQs state saved in printk_safe_enter().
> + * Can be preempted by NMI.
> + */
How does this return with irqs enabled?
-- Steve
> +void __printk_safe_exit(void)
> +{
> + this_cpu_dec(printk_safe_context);
> +}
> +
