From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qg0-f44.google.com (mail-qg0-f44.google.com [209.85.192.44]) by kanga.kvack.org (Postfix) with ESMTP id 2ADD16B026C for ; Thu, 18 Feb 2016 21:40:36 -0500 (EST) Received: by mail-qg0-f44.google.com with SMTP id y89so52336944qge.2 for ; Thu, 18 Feb 2016 18:40:36 -0800 (PST) Received: from e37.co.us.ibm.com (e37.co.us.ibm.com. [32.97.110.158]) by mx.google.com with ESMTPS id c205si11619675qhc.97.2016.02.18.18.40.35 for (version=TLS1_2 cipher=AES128-SHA bits=128/128); Thu, 18 Feb 2016 18:40:35 -0800 (PST) Received: from localhost by e37.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 18 Feb 2016 19:40:34 -0700 Received: from b01cxnp22034.gho.pok.ibm.com (b01cxnp22034.gho.pok.ibm.com [9.57.198.24]) by d03dlp03.boulder.ibm.com (Postfix) with ESMTP id 040B119D803F for ; Thu, 18 Feb 2016 19:28:29 -0700 (MST) Received: from d01av01.pok.ibm.com (d01av01.pok.ibm.com [9.56.224.215]) by b01cxnp22034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u1J2eVls30802172 for ; Fri, 19 Feb 2016 02:40:31 GMT Received: from d01av01.pok.ibm.com (localhost [127.0.0.1]) by d01av01.pok.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u1J2eUHD014498 for ; Thu, 18 Feb 2016 21:40:31 -0500 From: "Aneesh Kumar K.V" Subject: Re: [PATCH V3 01/30] mm: Make vm_get_page_prot arch specific. In-Reply-To: <56C66FBB.7000808@intel.com> References: <1455814254-10226-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <1455814254-10226-2-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <56C66FBB.7000808@intel.com> Date: Fri, 19 Feb 2016 08:10:26 +0530 Message-ID: <87bn7de82t.fsf@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: Dave Hansen , benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au Cc: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org Dave Hansen writes: > On 02/18/2016 08:50 AM, Aneesh Kumar K.V wrote: >> With next generation power processor, we are having a new mmu model >> [1] that require us to maintain a different linux page table format. >> >> Inorder to support both current and future ppc64 systems with a single >> kernel we need to make sure kernel can select between different page >> table format at runtime. With the new MMU (radix MMU) added, we will >> have to dynamically switch between different protection map. Hence >> override vm_get_page_prot instead of using arch_vm_get_page_prot. We >> also drop arch_vm_get_page_prot since only powerpc used it. > > Hi Aneesh, > > I've got some patches I'm hoping to get in to 4.6 that start using > arch_vm_get_page_prot() on x86: > >> http://git.kernel.org/cgit/linux/kernel/git/daveh/x86-pkeys.git/commit/?h=pkeys-v024&id=aa1e61398fb598869981cfe48275cff832945669 > > So I'd prefer that it stay in place. :) Ok. I will update the patch to keep that. -aneesh -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org