From patchwork Wed Mar 4 13:06:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudio Imbrenda X-Patchwork-Id: 11420065 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7DA74921 for ; Wed, 4 Mar 2020 13:07:09 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4A9D121739 for ; Wed, 4 Mar 2020 13:07:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4A9D121739 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 86EE76B0003; Wed, 4 Mar 2020 08:07:08 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 7F80F6B0005; Wed, 4 Mar 2020 08:07:08 -0500 (EST) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6C0036B0006; Wed, 4 Mar 2020 08:07:08 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0082.hostedemail.com [216.40.44.82]) by kanga.kvack.org (Postfix) with ESMTP id 51E816B0003 for ; Wed, 4 Mar 2020 08:07:08 -0500 (EST) Received: from smtpin30.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id EDDB3180AD804 for ; Wed, 4 Mar 2020 13:07:07 +0000 (UTC) X-FDA: 76557705294.30.body68_211a5beb93b41 X-Spam-Summary: 2,0,0,a689c674b9bc33c7,d41d8cd98f00b204,imbrenda@linux.ibm.com,,RULES_HIT:41:69:355:379:541:973:988:989:1260:1261:1311:1314:1345:1437:1515:1534:1540:1711:1730:1747:1777:1792:2393:2559:2562:3138:3139:3140:3141:3142:3352:3865:3866:3867:3868:3870:3871:3874:4605:5007:6119:6261:7903:10004:11026:11658:11914:12043:12048:12291:12296:12297:12663:12679:12683:12895:13069:13095:13311:13357:13894:14096:14384:14394:14721:21080:21212:21433:21451:21627:30012:30054:30070,0,RBL:148.163.158.5:@linux.ibm.com:.lbl8.mailshell.net-62.2.0.100 64.100.201.201,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:25,LUA_SUMMARY:none X-HE-Tag: body68_211a5beb93b41 X-Filterd-Recvd-Size: 4116 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by imf20.hostedemail.com (Postfix) with ESMTP for ; Wed, 4 Mar 2020 13:07:07 +0000 (UTC) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 024D5qcn085414 for ; Wed, 4 Mar 2020 08:07:06 -0500 Received: from e06smtp04.uk.ibm.com (e06smtp04.uk.ibm.com [195.75.94.100]) by mx0a-001b2d01.pphosted.com with ESMTP id 2yj6nj61cj-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 04 Mar 2020 08:07:06 -0500 Received: from localhost by e06smtp04.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 4 Mar 2020 13:07:00 -0000 Received: from d06av24.portsmouth.uk.ibm.com (d06av24.portsmouth.uk.ibm.com [9.149.105.60]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 024D6wTb58654966 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 4 Mar 2020 13:06:58 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9AEBE42045; Wed, 4 Mar 2020 13:06:58 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F0A054203F; Wed, 4 Mar 2020 13:06:57 +0000 (GMT) Received: from localhost.localdomain (unknown [9.145.0.1]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 4 Mar 2020 13:06:57 +0000 (GMT) From: Claudio Imbrenda To: linux-next@vger.kernel.org, akpm@linux-foundation.org, jack@suse.cz, kirill@shutemov.name Cc: borntraeger@de.ibm.com, david@redhat.com, aarcange@redhat.com, linux-mm@kvack.org, frankja@linux.ibm.com, sfr@canb.auug.org.au, jhubbard@nvidia.com, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Subject: [PATCH v3 0/2] add callbacks for inaccessible pages Date: Wed, 4 Mar 2020 14:06:53 +0100 X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 20030413-0016-0000-0000-000002ED1A6E X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20030413-0017-0000-0000-000033506806 Message-Id: <20200304130655.462517-1-imbrenda@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-03-04_05:2020-03-04,2020-03-04 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxlogscore=667 suspectscore=0 impostorscore=0 priorityscore=1501 bulkscore=0 phishscore=0 mlxscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003040099 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: This patchset has a fixup for gup/mm, and provides the necessary arch hooks to enable protected virtualization. Andrew: please simply squash/fixup the first patch into the appropriate one that is already in your tree. v2 -> v3: * revert some cosmetic changes to improve readability * improve some comments v1 -> v2: * use put_compound_head in the first patch * fix commit message of the second patch * minor code cleanups * some comments to explain why sometimes we are not doing things Claudio Imbrenda (2): mm/gup: fixup for 9947ea2c1e608e32 "mm/gup: track FOLL_PIN pages" mm/gup/writeback: add callbacks for inaccessible pages include/linux/gfp.h | 6 ++++ mm/gup.c | 76 +++++++++++++++++++++++++++++---------------- mm/page-writeback.c | 5 +++ 3 files changed, 61 insertions(+), 26 deletions(-)