cpus_write_lock 111 include/linux/cpu.h extern void cpus_write_lock(void); cpus_write_lock 135 include/linux/cpu.h static inline void cpu_hotplug_begin(void) { cpus_write_lock(); } cpus_write_lock 988 kernel/cpu.c cpus_write_lock(); cpus_write_lock 1119 kernel/cpu.c cpus_write_lock();