From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f48.google.com (mail-pa0-f48.google.com [209.85.220.48]) by kanga.kvack.org (Postfix) with ESMTP id 5BAEF6B0254 for ; Mon, 7 Mar 2016 12:36:01 -0500 (EST) Received: by mail-pa0-f48.google.com with SMTP id tt10so20093909pab.3 for ; Mon, 07 Mar 2016 09:36:01 -0800 (PST) Received: from mga01.intel.com (mga01.intel.com. [192.55.52.88]) by mx.google.com with ESMTP id sm10si6912625pab.78.2016.03.07.09.36.00 for ; Mon, 07 Mar 2016 09:36:00 -0800 (PST) Subject: Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI) References: <1456951177-23579-1-git-send-email-khalid.aziz@oracle.com> From: Dave Hansen Message-ID: <56DDBBFD.8040106@intel.com> Date: Mon, 7 Mar 2016 09:35:57 -0800 MIME-Version: 1.0 In-Reply-To: <1456951177-23579-1-git-send-email-khalid.aziz@oracle.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Khalid Aziz , davem@davemloft.net, 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 Cc: 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 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? -- 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