all_cpu_access_lock 675 kernel/trace/trace.c static DECLARE_RWSEM(all_cpu_access_lock); all_cpu_access_lock 682 kernel/trace/trace.c down_write(&all_cpu_access_lock); all_cpu_access_lock 687 kernel/trace/trace.c down_read(&all_cpu_access_lock); all_cpu_access_lock 697 kernel/trace/trace.c up_write(&all_cpu_access_lock); all_cpu_access_lock 700 kernel/trace/trace.c up_read(&all_cpu_access_lock);