Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751870AbdHDTZU (ORCPT ); Fri, 4 Aug 2017 15:25:20 -0400 Received: from mga04.intel.com ([192.55.52.120]:55300 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751216AbdHDTZT (ORCPT ); Fri, 4 Aug 2017 15:25:19 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.41,322,1498546800"; d="scan'208";a="119894726" Subject: Re: [PATCH 1/2] x86,mpx: make mpx depend on x86-64 to free up VMA flag To: riel@redhat.com, linux-kernel@vger.kernel.org References: <20170804190730.17858-1-riel@redhat.com> <20170804190730.17858-2-riel@redhat.com> Cc: linux-mm@kvack.org, fweimer@redhat.com, colm@allcosts.net, akpm@linux-foundation.org, rppt@linux.vnet.ibm.com, keescook@chromium.org, luto@amacapital.net, wad@chromium.org, mingo@kernel.org From: Dave Hansen Message-ID: <543e85d4-d4a1-41a7-cfcf-6a88c0124998@intel.com> Date: Fri, 4 Aug 2017 12:25:15 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: <20170804190730.17858-2-riel@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 320 Lines: 8 On 08/04/2017 12:07 PM, riel@redhat.com wrote: > MPX only seems to be available on 64 bit CPUs, starting with Skylake > and Goldmont. Move VM_MPX into the 64 bit only portion of vma->vm_flags, > in order to free up a VMA flag. Makes me a little sad. But, seems worth it. Acked-by: Dave Hansen