From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f172.google.com (mail-pf0-f172.google.com [209.85.192.172]) by kanga.kvack.org (Postfix) with ESMTP id A16336B0005 for ; Mon, 7 Mar 2016 14:06:53 -0500 (EST) Received: by mail-pf0-f172.google.com with SMTP id 63so84446811pfe.3 for ; Mon, 07 Mar 2016 11:06:53 -0800 (PST) Received: from shards.monkeyblade.net (shards.monkeyblade.net. [2001:4f8:3:36:211:85ff:fe63:a549]) by mx.google.com with ESMTP id ud10si6959921pab.54.2016.03.07.11.06.52 for ; Mon, 07 Mar 2016 11:06:52 -0800 (PST) Date: Mon, 07 Mar 2016 14:06:48 -0500 (EST) Message-Id: <20160307.140648.619723704794000620.davem@davemloft.net> Subject: Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI) From: David Miller In-Reply-To: <56DDBBFD.8040106@intel.com> References: <1456951177-23579-1-git-send-email-khalid.aziz@oracle.com> <56DDBBFD.8040106@intel.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: dave.hansen@intel.com Cc: khalid.aziz@oracle.com, corbet@lwn.net, akpm@linux-foundation.org, dingel@linux.vnet.ibm.com, zhenzhang.zhang@huawei.com, bob.picco@oracle.com, kirill.shutemov@linux.intel.com, aneesh.kumar@linux.vnet.ibm.com, aarcange@redhat.com, arnd@arndb.de, sparclinux@vger.kernel.org, rob.gardner@oracle.com, mhocko@suse.cz, chris.hyser@oracle.com, richard@nod.at, vbabka@suse.cz, koct9i@gmail.com, oleg@redhat.com, gthelen@google.com, jack@suse.cz, xiexiuqi@huawei.com, Vineet.Gupta1@synopsys.com, luto@kernel.org, ebiederm@xmission.com, bsegall@google.com, geert@linux-m68k.org, dave@stgolabs.net, adobriyan@gmail.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org From: Dave Hansen Date: Mon, 7 Mar 2016 09:35:57 -0800 > On 03/02/2016 12:39 PM, Khalid Aziz wrote: >> +long enable_sparc_adi(unsigned long addr, unsigned long len) >> +{ >> + unsigned long end, pagemask; >> + int error; >> + struct vm_area_struct *vma, *vma2; >> + struct mm_struct *mm; >> + >> + if (!ADI_CAPABLE()) >> + return -EINVAL; > ... > > This whole thing with the VMA splitting and so forth looks pretty darn > arch-independent. Are you sure you need that much arch-specific code > for it, or can you share more of the generic VMA management code? This is exactly what I have suggested to him, and he has agreed to pursue. -- 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