From nobody Wed Dec 17 10:43:34 2025 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 A1263C4167B for ; Tue, 28 Nov 2023 11:04:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344464AbjK1LEH (ORCPT ); Tue, 28 Nov 2023 06:04:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344333AbjK1LD4 (ORCPT ); Tue, 28 Nov 2023 06:03:56 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17DC9D5B; Tue, 28 Nov 2023 03:04:03 -0800 (PST) Received: from pps.filterd (m0353729.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3ASB25u3025897; Tue, 28 Nov 2023 11:03:51 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=Onulgm7nCUdcpaVdPXWthCgk2585qRsTxwp5zRlqqMg=; b=Kcfb2+Aa7rlmP84dTnj3jhupFlOeHseXbO+vquUWiKN4INv1JManUQr4do24L8Jz70n0 TJAX6IT8lEFwPViTOf8EhTgwHFB/yn1AnX5dG0imga14s6JU1UwvKt7o/lT9z6JPQp58 7qaydGILnT0iQ7QwIuqmfK8XRPgHcQvEZVN172LbdzbgVZL43IvPmbP01lOKTQ7akGQj 1JVMEyQnUbR/Os+tzrcrEl9gRm9KbBS7xvAZPLqwM93Fy9XDkMm0wTewKzqh5O2Upfk8 R64TM8nuWmQJsQOUiYzdHqi5ia4zFm2kN8B3QlsV9ecD1Ln/GYyyjuHgnU07xGSj9gYh Cw== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3uneyp818a-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 28 Nov 2023 11:03:50 +0000 Received: from m0353729.ppops.net (m0353729.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3ASB38B7029061; Tue, 28 Nov 2023 11:03:50 GMT Received: from ppma11.dal12v.mail.ibm.com (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3uneyp817p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 28 Nov 2023 11:03:50 +0000 Received: from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1]) by ppma11.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 3ASAacF5018258; Tue, 28 Nov 2023 11:03:49 GMT Received: from smtprelay03.fra02v.mail.ibm.com ([9.218.2.224]) by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 3ukwy1pn6x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 28 Nov 2023 11:03:49 +0000 Received: from smtpav03.fra02v.mail.ibm.com (smtpav03.fra02v.mail.ibm.com [10.20.54.102]) by smtprelay03.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 3ASB3kDQ8913522 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 28 Nov 2023 11:03:46 GMT Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A071B20040; Tue, 28 Nov 2023 11:03:46 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4A14A2004B; Tue, 28 Nov 2023 11:03:46 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 28 Nov 2023 11:03:46 +0000 (GMT) From: Sumanth Korikkar To: linux-mm , Andrew Morton , David Hildenbrand Cc: Oscar Salvador , Michal Hocko , "Aneesh Kumar K.V" , Anshuman Khandual , Gerald Schaefer , Alexander Gordeev , Heiko Carstens , Vasily Gorbik , linux-s390 , LKML Subject: [PATCH v4 5/5] s390: enable MHP_MEMMAP_ON_MEMORY Date: Tue, 28 Nov 2023 12:03:42 +0100 Message-Id: <20231128110342.102096-6-sumanthk@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231128110342.102096-1-sumanthk@linux.ibm.com> References: <20231128110342.102096-1-sumanthk@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: cKTj3XpeWC2jy5IUBIMUhDQUBwt3xMBX X-Proofpoint-GUID: bYXWX24IszSnuTl2yc3haCcd-ORcO-Mi X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-28_10,2023-11-27_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=798 impostorscore=0 lowpriorityscore=0 malwarescore=0 priorityscore=1501 mlxscore=0 spamscore=0 adultscore=0 clxscore=1015 suspectscore=0 phishscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311280087 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Enable MHP_MEMMAP_ON_MEMORY to support "memmap on memory". memory_hotplug.memmap_on_memory=3Dtrue kernel parameter should be set in kernel boot option to enable the feature. Reviewed-by: Gerald Schaefer Signed-off-by: Sumanth Korikkar --- arch/s390/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 3bec98d20283..4b9b0f947ddb 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -113,6 +113,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_BH select ARCH_INLINE_WRITE_UNLOCK_IRQ select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE + select ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE select ARCH_STACKWALK select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_DEBUG_PAGEALLOC --=20 2.41.0