From patchwork Thu Jun 10 15:42:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudio Imbrenda X-Patchwork-Id: 12313387 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=-11.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 E3E0CC48BD1 for ; Thu, 10 Jun 2021 15:42:38 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 64603613AE for ; Thu, 10 Jun 2021 15:42:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 64603613AE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 9BB8D6B006E; Thu, 10 Jun 2021 11:42:36 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 872096B0072; Thu, 10 Jun 2021 11:42:36 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 64DF46B0070; Thu, 10 Jun 2021 11:42:36 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0129.hostedemail.com [216.40.44.129]) by kanga.kvack.org (Postfix) with ESMTP id 31DB76B006E for ; Thu, 10 Jun 2021 11:42:36 -0400 (EDT) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id C51F5181AEF1A for ; Thu, 10 Jun 2021 15:42:35 +0000 (UTC) X-FDA: 78238231470.27.5405CC4 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by imf12.hostedemail.com (Postfix) with ESMTP id A8B7BF2 for ; Thu, 10 Jun 2021 15:42:27 +0000 (UTC) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 15AFWqd8029246; Thu, 10 Jun 2021 11:42:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding; s=pp1; bh=HiYTFe6cLtCeeuwsccFxR5V37AhXH40ycT5J1sYOiQU=; b=b0Svo2+V1B1qZwO64HVWeZ194zZ/Cr9rjrfhhHWpFtuFdlcee5sJ9Mv4xJLXeR6SH+vh vr3eFcTJ3LrZKerDN+gqK72ioxb1giyI8qutxnWP+BFf5G1sA1qi9ebKFZgVH3vD8XyY ooChX1blJ9XSgQhs4eRk221EAq8FNYGS3Z83GM/EnuOmBFljCTlqkfYcT2foCXm3MWJm Oocziz8q3p0odry++X48fuakBpFix9q6tLd6y7/BAQrUmbyoSCJGxJKCXiWpIiBNE4Fb q6bmWLXCzJOSydLexvLBNBZbSyR4VlfOfk9hyLjrwJRhW4nWhuf2K1xDdH9rE3uTVl12 lg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 393nf189ru-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Jun 2021 11:42:27 -0400 Received: from m0098396.ppops.net (m0098396.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 15AFZwr2039081; Thu, 10 Jun 2021 11:42:27 -0400 Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 393nf189qt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Jun 2021 11:42:27 -0400 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 15AFXZuk032143; Thu, 10 Jun 2021 15:42:24 GMT Received: from b06cxnps4075.portsmouth.uk.ibm.com (d06relay12.portsmouth.uk.ibm.com [9.149.109.197]) by ppma03ams.nl.ibm.com with ESMTP id 3900w8jwt8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Jun 2021 15:42:24 +0000 Received: from d06av24.portsmouth.uk.ibm.com (d06av24.portsmouth.uk.ibm.com [9.149.105.60]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 15AFgLtH29622546 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 10 Jun 2021 15:42:21 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A17C24203F; Thu, 10 Jun 2021 15:42:21 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EBA4442049; Thu, 10 Jun 2021 15:42:20 +0000 (GMT) Received: from ibm-vm.ibmuc.com (unknown [9.145.5.240]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 10 Jun 2021 15:42:20 +0000 (GMT) From: Claudio Imbrenda To: linux-kernel@vger.kernel.org Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org, frankja@linux.ibm.com, borntraeger@de.ibm.com, cohuck@redhat.com, david@redhat.com, linux-mm@kvack.org, Andrew Morton , Nicholas Piggin , Uladzislau Rezki , Catalin Marinas , Thomas Gleixner , Ingo Molnar , David Rientjes , Christoph Hellwig Subject: [PATCH v3 0/2] mm: add vmalloc_no_huge and use it Date: Thu, 10 Jun 2021 17:42:18 +0200 Message-Id: <20210610154220.529122-1-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: dJ15_EumK2J4urMghMx0IOHKOjEmGRF0 X-Proofpoint-ORIG-GUID: -GO27a1NJRTid1GfxKozKvRSQh4iN4Mw X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.761 definitions=2021-06-10_10:2021-06-10,2021-06-10 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 priorityscore=1501 phishscore=0 suspectscore=0 bulkscore=0 mlxscore=0 clxscore=1011 spamscore=0 lowpriorityscore=0 mlxlogscore=588 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2106100099 Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=ibm.com header.s=pp1 header.b=b0Svo2+V; dmarc=pass (policy=none) header.from=ibm.com; spf=pass (imf12.hostedemail.com: domain of imbrenda@linux.ibm.com designates 148.163.156.1 as permitted sender) smtp.mailfrom=imbrenda@linux.ibm.com X-Stat-Signature: 5t5npzpqcaxfyqywj8xxniuiwom1nkeb X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: A8B7BF2 X-HE-Tag: 1623339747-379752 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Add vmalloc_no_huge and export it, so modules can allocate memory with small pages. Use the newly added vmalloc_no_huge in KVM on s390 to get around a hardware limitation. v2->v3: * do not export __vmalloc_node_range * add vmalloc_no_huge as a wrapper around __vmalloc_node_range * use vmalloc_no_huge instead of __vmalloc_node_range in kvm on s390x Cc: Andrew Morton Cc: Nicholas Piggin Cc: Uladzislau Rezki (Sony) Cc: Catalin Marinas Cc: Thomas Gleixner Cc: Ingo Molnar Cc: David Rientjes Cc: Christoph Hellwig Claudio Imbrenda (2): mm/vmalloc: add vmalloc_no_huge KVM: s390: fix for hugepage vmalloc arch/s390/kvm/pv.c | 2 +- include/linux/vmalloc.h | 1 + mm/vmalloc.c | 16 ++++++++++++++++ 3 files changed, 18 insertions(+), 1 deletion(-)