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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,T_DKIMWL_WL_HIGH,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23CDEC04AB1 for ; Thu, 9 May 2019 16:09:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E82962173B for ; Thu, 9 May 2019 16:09:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="c5sPk/UW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726682AbfEIQJ1 (ORCPT ); Thu, 9 May 2019 12:09:27 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:41398 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726187AbfEIQJ0 (ORCPT ); Thu, 9 May 2019 12:09:26 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x49G41OP084863; Thu, 9 May 2019 16:09:20 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2018-07-02; bh=0ju7H5Gj2niL871BBOn8Ga4UpgCjBl63hHSs8faALiA=; b=c5sPk/UWjvgCBKfpceUko8ZPiLjVtYZaJKfjeFrS72vCgisTcb/wqPpU408mjOlf1zAt N1dzXSOlBOYvO2FncI11/uZ6nX23dOWmdBrDMUjR1+aL79jZzdLe0yfSDijwAMGgDo7t Jwd8WePcB86Gdcg6BPC/D+blKGY+7lLdlbQc2A15l75HX8D8fJUSlZ9YvE3sij/XmWAR XtmMALWB/8Q2p3irGRUnm4mJb2te+1BFPLTPjInczB9VrVVJKnEKiaBZLN9I5+4vaK3N qmmdijdE3imqVZbniq7DGl8Ig6/MmEpd721BGHN8sPajfXcxwCio29Ce9ZhcvXUEPi2z tA== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by userp2130.oracle.com with ESMTP id 2s94bgc066-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 09 May 2019 16:09:19 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x49G75FA107183; Thu, 9 May 2019 16:07:19 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserp3030.oracle.com with ESMTP id 2scpy5rqhu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 09 May 2019 16:07:19 +0000 Received: from abhmp0019.oracle.com (abhmp0019.oracle.com [141.146.116.25]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x49G7G0I017023; Thu, 9 May 2019 16:07:16 GMT Received: from oracle.com (/75.80.107.76) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 09 May 2019 09:07:16 -0700 From: Larry Bassel To: mike.kravetz@oracle.com, willy@infradead.org, dan.j.williams@intel.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org Cc: Larry Bassel Subject: [PATCH, RFC 1/2] Add config option to enable FS/DAX PMD sharing Date: Thu, 9 May 2019 09:05:32 -0700 Message-Id: <1557417933-15701-2-git-send-email-larry.bassel@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1557417933-15701-1-git-send-email-larry.bassel@oracle.com> References: <1557417933-15701-1-git-send-email-larry.bassel@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9252 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905090092 X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9252 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905090092 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If enabled, sharing of FS/DAX PMDs will be attempted. Signed-off-by: Larry Bassel --- arch/x86/Kconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e721273..e11702e 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -297,6 +297,9 @@ config ARCH_SUSPEND_POSSIBLE config ARCH_WANT_HUGE_PMD_SHARE def_bool y +config MAY_SHARE_FSDAX_PMD + def_bool y + config ARCH_WANT_GENERAL_HUGETLB def_bool y -- 1.8.3.1