On Fri, 15 Sep 2017 18:21:07 -0700 Ram Pai <linuxram at us.ibm.com> wrote: > +#ifdef CONFIG_ARCH_HAS_PKEYS > + if (arch_pkeys_enabled()) Sorry, I missed this bit in my previous review the patch makes sense > + seq_printf(m, "ProtectionKey: %8u\n", vma_pkey(vma)); > +#endif > + Balbir