cpu_all_bits 800 include/linux/cpumask.h extern const DECLARE_BITMAP(cpu_all_bits, NR_CPUS); cpu_all_bits 801 include/linux/cpumask.h #define cpu_all_mask to_cpumask(cpu_all_bits) cpu_all_bits 2294 kernel/cpu.c const DECLARE_BITMAP(cpu_all_bits, NR_CPUS) = CPU_BITS_ALL; cpu_all_bits 2295 kernel/cpu.c EXPORT_SYMBOL(cpu_all_bits);