Re: [PATCH v2 1/1] mm: numa_memblks: Identify the accurate NUMA ID of CFMW

From: Gregory Price

Date: Fri Feb 06 2026 - 11:37:36 EST


On Fri, Feb 06, 2026 at 04:26:44PM +0000, Jonathan Cameron wrote:
> >
> > This should fall out cleanly.
> >
> > The additional nodes won't be associated with anything, but could be
> > used for hotplug - I imagine.
> >
>
> That aligns with what I was thinking as a first solution to allowing this
> to be more dynamic. We can get clever later if this doesn't prove sufficient.
>

I can get this out pretty quickly, hopefully sometime next week.

I had a long talk with Dan about this topic previously, and I'm not sure
how we get more dynamic than this to be honest. nr_possible_nodes is
*definitely* expected to be immutable after __init all over the kernel,
it's used to allocate a memory.

Surface area is very large here.

~Gregory