Re: [PATCH v4 2/2] locking/pvqspinlock, hv: Enable PV qspinlock for Hyper-V

Ingo Molnar
2018-10-09T10:54:35Z

* Yi Sun <yi.y.sun@linux.intel.com> wrote:

> Follow PV spinlock mechanism to implement the callback functions
> to allow the CPU idling and kicking operations on Hyper-V.

> +#if defined(CONFIG_SMP)
> + smp_ops.smp_prepare_boot_cpu = hv_smp_prepare_boot_cpu;
> +#endif

What's wrong with using the common pattern of:

#ifdef CONFIG_SMP

?

Thanks,

Ingo