From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AB0F8EC8738 for ; Thu, 7 Sep 2023 16:14:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237956AbjIGQOR (ORCPT ); Thu, 7 Sep 2023 12:14:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52400 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238712AbjIGQNc (ORCPT ); Thu, 7 Sep 2023 12:13:32 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B68DE284E3; Thu, 7 Sep 2023 08:47:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694101665; x=1725637665; h=message-id:date:mime-version:subject:from:to:cc: references:in-reply-to:content-transfer-encoding; bh=tegXt8H4GqIs9pd9JuwuDFIteUSWjZ+yfenTAdbahT8=; b=D862hdPq1PRvyaivoBLoibxf3Lehjfmy+QAc5QeWj7KDZiDHvpA/1wo1 blAWsoVZq8cEE2IihX3pwW3PYTlgCOJ7YQh5aPyYmVarM/j0fERvmvBDV w8D99tLNOg1AafUmwXc5WBwFUTrZsfwMhRZxCsbOhVk+MrKnLsU5395EN d7PZ7LRliG7u8jk6/N4pze6nNN6wsFQ9IviIJpTXuMSiD6Vv6MnbXAvE0 XQNaJFNcz8SYxvWfX4Bx9Ygtv7H7X8NuYO/Qv/h8QrXMXLjacDp2VvCJ+ 2sY6yUkfFqQhGU1gIoaAWxDpqWRNOLgQMB+3L+2Abjg3BHMAcZOkSs3jl Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10826"; a="376286318" X-IronPort-AV: E=Sophos;i="6.02,235,1688454000"; d="scan'208";a="376286318" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Sep 2023 08:04:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10826"; a="988806618" X-IronPort-AV: E=Sophos;i="6.02,235,1688454000"; d="scan'208";a="988806618" Received: from ningle-mobl2.amr.corp.intel.com (HELO [10.209.13.77]) ([10.209.13.77]) by fmsmga006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Sep 2023 08:04:37 -0700 Message-ID: <81379d2d-4bb4-2384-5612-fdc82828cb0f@intel.com> Date: Thu, 7 Sep 2023 08:04:36 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.0 Subject: Re: [PATCH 3/3] /dev/mem: Do not map unaccepted memory Content-Language: en-US From: Dave Hansen To: "Kirill A. Shutemov" Cc: Adrian Hunter , Borislav Petkov , Andrew Morton , Vlastimil Babka , Mike Rapoport , Lorenzo Stoakes , Tom Lendacky , Baoquan He , Vivek Goyal , Dave Young , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-coco@lists.linux.dev, linux-efi@vger.kernel.org, kexec@lists.infradead.org References: <20230906073902.4229-1-adrian.hunter@intel.com> <20230906073902.4229-4-adrian.hunter@intel.com> <9ffb7a3b-cf20-617a-e4f1-8a6a8a2c5972@intel.com> <20230907142510.vcj57cvnewqt4m37@box.shutemov.name> <7a50d04f-63ee-a901-6f39-7d341e423a77@intel.com> In-Reply-To: <7a50d04f-63ee-a901-6f39-7d341e423a77@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/7/23 07:46, Dave Hansen wrote: > Can a line of code in this patch even run in the face of IO_STRICT_DEVMEM=y? Gah, I meant plain old STRICT_DEVMEM=y.