From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751850AbdIVGM5 (ORCPT ); Fri, 22 Sep 2017 02:12:57 -0400 Received: from mail-pg0-f66.google.com ([74.125.83.66]:37465 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751637AbdIVGMz (ORCPT ); Fri, 22 Sep 2017 02:12:55 -0400 X-Google-Smtp-Source: AOwi7QDmu5eDvxfB8wV8AAZkmkZADrmyS5qx5Rh60YQ8BWykfXfhWLtqnEEYolZk/WvCQdg4edK4Kg== Date: Fri, 22 Sep 2017 16:12:43 +1000 From: Balbir Singh To: Ram Pai Cc: mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org, linux-doc@vger.kernel.org, arnd@arndb.de, akpm@linux-foundation.org, corbet@lwn.net, mingo@redhat.com, benh@kernel.crashing.org, paulus@samba.org, khandual@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com, hbabu@us.ibm.com, mhocko@kernel.org, bauerman@linux.vnet.ibm.com, ebiederm@xmission.com Subject: Re: [PATCH 1/6] mm: introduce an additional vma bit for powerpc pkey Message-ID: <20170922161243.7d03a5b6@firefly.ozlabs.ibm.com> In-Reply-To: <1505524870-4783-2-git-send-email-linuxram@us.ibm.com> References: <1505524870-4783-1-git-send-email-linuxram@us.ibm.com> <1505524870-4783-2-git-send-email-linuxram@us.ibm.com> X-Mailer: Claws Mail 3.14.1 (GTK+ 2.24.31; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 15 Sep 2017 18:21:05 -0700 Ram Pai wrote: > Currently only 4bits are allocated in the vma flags to hold 16 > keys. This is sufficient for x86. PowerPC supports 32 keys, > which needs 5bits. This patch allocates an additional bit. > > Signed-off-by: Ram Pai > --- Acked-by: Balbir Singh