Re: [PATCH v9 0/7] Make cpuid <-> nodeid mapping persistent

[Tejun Heo]

Hello,

On Mon, Jul 25, 2016 at 05:25:49PM -0700, Andrew Morton wrote:
> > Yeah, that was one of the early approaches.  The issue isn't limited
> > to wq.  Any memory allocation can have similar issues of underlying
> > node association changing and we don't have any synchronization
> > mechanism around it.  It doesn't make any sense to make NUMA
> > association dynamic when the consumer surface is vastly larger and
> > there's nothing inherently dynamic about the association itself.
> 
> And other architectures?

No idea but it only matters for NUMA + CPU hotplug combination where a
whole node can go empty, which would at most be a few archs.

Thanks.

-- 
tejun