Re: [RESEND PATCH v5 0/5] Make cpuid <-> nodeid mapping persistent

From: Rafael J. Wysocki
Date: Wed Mar 02 2016 - 21:08:55 EST


Hi,

On Thu, Mar 3, 2016 at 2:42 AM, Zhu Guihua <zhugh.fnst@xxxxxxxxxxxxxx> wrote:
> [Problem]
>
> cpuid <-> nodeid mapping is firstly established at boot time. And workqueue caches
> the mapping in wq_numa_possible_cpumask in wq_numa_init() at boot time.
>
> When doing node online/offline, cpuid <-> nodeid mapping is established/destroyed,
> which means, cpuid <-> nodeid mapping will change if node hotplug happens. But
> workqueue does not update wq_numa_possible_cpumask.
>

Are there any changes in this version relative to the previous one?

Thanks,
Rafael