fops_stf_barrier 380 arch/powerpc/kernel/security.c DEFINE_SIMPLE_ATTRIBUTE(fops_stf_barrier, stf_barrier_get, stf_barrier_set, "%llu\n"); fops_stf_barrier 384 arch/powerpc/kernel/security.c debugfs_create_file("stf_barrier", 0600, powerpc_debugfs_root, NULL, &fops_stf_barrier);