cpu_coregroup_map
return per_cpu(cpu_coregroup_map, cpu);
return per_cpu(cpu_coregroup_map, cpu);
zalloc_cpumask_var_node(&per_cpu(cpu_coregroup_map, cpu),
static DEFINE_PER_CPU(cpumask_var_t, cpu_coregroup_map);
cpu_core_map[cpu] = cpu_coregroup_map(cpu);