438 	struct files_struct *oldf, *newf;  in copy_files()  local
445 	oldf = current->files;  in copy_files()
446 	if (!oldf)  in copy_files()
450 		atomic_inc(&oldf->count);  in copy_files()
477 	size = oldf->max_fdset;  in copy_files()
486 	read_lock(&oldf->file_lock);  in copy_files()
488 	open_files = count_open_files(oldf, size);  in copy_files()
497 		read_unlock(&oldf->file_lock);  in copy_files()
505 		read_lock(&oldf->file_lock);  in copy_files()
508 	old_fds = oldf->fd;  in copy_files()
511 	memcpy(newf->open_fds->fds_bits, oldf->open_fds->fds_bits, open_files/8);  in copy_files()
512 	memcpy(newf->close_on_exec->fds_bits, oldf->close_on_exec->fds_bits, open_files/8);  in copy_files()
529 	read_unlock(&oldf->file_lock);  in copy_files()