Re: [PATCH v5 3/4] x86/cacheinfo: Delete global num_cache_leaves

[Andreas Herrmann]

On Mon, Aug 26, 2024 at 10:16:34PM -0700, Ricardo Neri wrote:
> Linux remembers cpu_cachinfo::num_leaves per CPU, but x86 initializes all
> CPUs from the same global "num_cache_leaves".
> 
> This is erroneous on systems such as Meteor Lake, where each CPU has a
> distinct num_leaves value. Delete the global "num_cache_leaves" and
> initialize num_leaves on each CPU.
> 
> Reviewed-by: Len Brown <len.brown@xxxxxxxxx>
> Signed-off-by: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>

Reviewed-by: Andreas Herrmann <aherrmann@xxxxxxx>
Tested-by: Andreas Herrmann <aherrmann@xxxxxxx>

Test was done with a system equipped with AMD Phenom II X6 1055T and
test kernels based on v6.11-rc5-176-g20371ba12063.


Thanks,
Andreas