[PATCH] sched/topology: Use Identity node only if required

[Peter Zijlstra]

On Fri, Aug 31, 2018 at 04:56:18PM +0530, Srikar Dronamraju wrote:
> This was the same in my previous posting too. Before the topology update
> happened, all the cpus would be in SMT, DIE. The topology updates can be
> disabled using a kernel parameter topology_updates=off. Its documented under
> https://www.kernel.org/doc/html/latest/admin-guide/kernel-parameters.html as
> 
>       topology_updates= [KNL, PPC, NUMA] Format: {off} Specify if the kernel
>       should ignore (off) topology updates sent by the hypervisor to this
>       LPAR.
> 
> and is not something new in powerpc.

Doesn't mean it isn't utterly broken.