Re: [PATCH v2 3/5] locking/qspinlock: Introduce CNA into the slow path of qspinlock

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Hi Alex,

On 2019/3/29 23:20, Alex Kogan wrote:
> +
> +static __always_inline void cna_init_node(struct mcs_spinlock *node, int cpuid,
> +					  u32 tail)
> +{
> +	if (decode_numa_node(node->node_and_count) == -1)
> +		store_numa_node(node, numa_cpu_node(cpuid));

How about using cpu_to_node() here and #include <linux/topology.h> in this
file, then the code can be reused for other architectures such as ARM64?

Thanks
Hanjun




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