On 17/09/15 06:19, Yang Yingliang wrote:
> Add move_irqs() into kernel/irq/migration.c.
> So we can use it to migrate interrupts, when
> cpu is offline.
>
> Cc: Jiang Liu <[email protected]>
> Cc: Thomas Gleixner <[email protected]>
> Cc: Marc Zyngier <[email protected]>
> Cc: Mark Rutland <[email protected]>
> Cc: Will Deacon <[email protected]>
> Cc: Russell King - ARM Linux <[email protected]>
> Cc: Hanjun Guo <[email protected]>
> Signed-off-by: Yang Yingliang <[email protected]>
> ---
> include/linux/irq.h | 4 +++
> kernel/irq/migration.c | 66
> ++++++++++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 70 insertions(+)
>
> diff --git a/include/linux/irq.h b/include/linux/irq.h
> index 6f8b340..64e3a02 100644
> --- a/include/linux/irq.h
> +++ b/include/linux/irq.h
> @@ -446,6 +446,10 @@ static inline void irq_move_irq(struct irq_data *data) {
> }
> static inline void irq_move_masked_irq(struct irq_data *data) { }
> #endif
>
> +#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_IRQ_MIGRATION) &&
> defined(CONFIG_HOTPLUG_CPU)
> +void move_irqs(void);
> +#endif
> +
I don't think having this prototype guarded by this #if is very useful.
You can probably leave it standalone.
Thanks,
M.
--
Jazz is not dead. It just smells funny...
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