On Wed, Jul 02, 2025 at 10:17:39PM +0100, Al Viro wrote: > - bool full = !debugfs_real_fops(m->file)->write; > + bool full = debugfs_get_aux_num(m->file); > + debugfs_create_file_aux_num("lru_gen", 0644, NULL, NULL, 1, > + &lru_gen_rw_fops); > + debugfs_create_file_aux_num("lru_gen_full", 0444, NULL, NULL, 0, > + &lru_gen_ro_fops); Looks like you have the polarity inverted there?