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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 16EF6FED2E9 for ; Thu, 12 Mar 2026 15:03:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=9yQLPhF/8tvYIDT5F8gEZIM1Lj5cCvoGcEOmMxBZOxo=; b=RQchb6tEm8fIy+BTM+Gdj3SohG Y908mo5bfk+xZY04khMCxnUIKSGm7izuz/akzojpWrpMQRrguCw26izKBF5xIz00fUA/vJp/5dt4b X1gzYTX8HHM7UG7wdfHUh7Fs4juvhdBiyum3JD1A5xM2rqRKGp38ZUFSuzIB+91HvJoxib2EdhZ+F qEpGbJmsE1ilPgY+OI0oGXVKPUA5ozDMTxzU6O+nxafVcsGruoH91+rDtFtbVZqIpnPTkRDeKa/0J aXMh+6oBRIMFVjFgVwAEAR7i8bSt5dVfgaP/t/wtrKOyvPFeBQ6QOoY3gf9OQ+865X7wCSsM+vZZQ Koim5Kjw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w0hZ2-0000000EIQl-2YZe; Thu, 12 Mar 2026 15:03:04 +0000 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w0hYz-0000000EIN5-0OxK; Thu, 12 Mar 2026 15:03:02 +0000 Received: from pps.filterd (m0356517.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 62CEYoAI2256683; Thu, 12 Mar 2026 15:02:48 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=pp1; bh=9yQLPhF/8tvYIDT5F8gEZIM1Lj5cCv oGcEOmMxBZOxo=; b=MC0pt+PeqJ/Fx0rQPpGYhy4twD3b2Kc3SyGf6uydq7veOf 8wSyVumxfYcS/RzLsLeDh8kl9tD8R4upozst/SCAgDPTqUvZAmWAxmio9y7OUnuT z+9VkyVr2PtgAtjQ0Lx8hCSh12XXatgaPxqxwMvKJXGxkJkYajZHeGG8FFjLWuwt A8sSjHM0AL5l7/rGDzvXX3n/TnC1GNUMHMp8KZgOej48GZLIJZLI1hfjuva/1XP4 1J3vzIqfnclM5Nt7mo5XR2o0alAXT63fVux788NDDz7JkbrDWVUnoTDzw6dMHvhx oQjkY8po5xcP4wjIRBxqWDT9CJV+bVyXkR6qLRFw== Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4cuh92b9bm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 12 Mar 2026 15:02:48 +0000 (GMT) Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 62CEN16g025674; Thu, 12 Mar 2026 15:02:47 GMT Received: from smtprelay01.fra02v.mail.ibm.com ([9.218.2.227]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 4cuha8as0r-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 12 Mar 2026 15:02:47 +0000 Received: from smtpav03.fra02v.mail.ibm.com (smtpav03.fra02v.mail.ibm.com [10.20.54.102]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 62CF2hgt59965898 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 12 Mar 2026 15:02:43 GMT Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 613C32004E; Thu, 12 Mar 2026 15:02:43 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 80C7120043; Thu, 12 Mar 2026 15:02:42 +0000 (GMT) Received: from localhost (unknown [9.111.83.60]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTPS; Thu, 12 Mar 2026 15:02:42 +0000 (GMT) Date: Thu, 12 Mar 2026 16:02:40 +0100 From: Vasily Gorbik To: Andrew Morton Cc: "David Hildenbrand (Arm)" , Madhavan Srinivasan , Michael Ellerman , Pasha Tatashin , Alexander Gordeev , Heiko Carstens , linux-s390@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, x86@kernel.org Subject: Re: [PATCH v2 1/4] mm/page_table_check: Pass mm_struct to pxx_user_accessible_page() Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 1KsyIx1BDwTPWaT_bYuVWvLadqDOw4WH X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzEyMDEyMSBTYWx0ZWRfX9FVH7vrUmovR J4ljyZrodPGRPdSk7n1B/Cu0G49IAvTOnb9rnFhx7k/ZMkrjauFEAfl9mgAdqYFQ5AIeON+I65L aBHB+xoH0lQifsBvM+fDapqU7iShTN1mwz6wfd4HDoQHyRNUuL3SE4S+xE7l9cxyu/+VssBqPe8 FtomLZUnwBdwc6mhzgyI+QBRIj0VvjIIMzoW/dhIAaRL2RNh8URukhOHG2aIpg3TrvdODgERw94 bu/MNsCRkWPsIKbo7rlefYFNmgpmKQz9p4ndZ+DRs20cVYl1l6HF2M4uoujYP0HyT7PBzGeqfT+ 8NU/fKpq9pAf5Ac3EfQsegHyszKU98eJp54aJoGeN2WHCSsZHn/zujIQWl+iQTzwRz4TdtyIETZ 5GC2PliLsfoRSNNNxjHHjgzxZZUP16hgpTMMKnK5UhAY3UAhROBg9q4VyPk1g6GDwAdF7Qhb7JE ektOqp8PyzdLfyWK8Og== X-Proofpoint-GUID: 1KsyIx1BDwTPWaT_bYuVWvLadqDOw4WH X-Authority-Analysis: v=2.4 cv=XNk9iAhE c=1 sm=1 tr=0 ts=69b2d598 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=Z4Rwk6OoAAAA:8 a=qw9MI_8u0g6XvTY13mQA:9 a=QEXdDO2ut3YA:10 a=HkZW87K1Qel5hWWM3VKY:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-12_01,2026-03-12_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 adultscore=0 bulkscore=0 phishscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603120121 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260312_080301_479758_93B752FF X-CRM114-Status: GOOD ( 17.06 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Mar 06, 2026 at 05:16:30PM +0100, Alexander Gordeev wrote: > From: Tobias Huschle > > Unlike other architectures, s390 does not have means to > distinguish kernel vs user page table entries - neither > an entry itself, nor the address could be used for that. > It is only the mm_struct that indicates whether an entry > in question is mapped to a user space. So pass mm_struct > to pxx_user_accessible_page() callbacks. > > [agordeev@linux.ibm.com: rephrased commit message, removed braces] > > Reviewed-by: Gerald Schaefer > Reviewed-by: Andrew Morton > Signed-off-by: Tobias Huschle > Signed-off-by: Alexander Gordeev > --- > arch/arm64/include/asm/pgtable.h | 6 +++--- > arch/powerpc/include/asm/book3s/32/pgtable.h | 2 +- > arch/powerpc/include/asm/book3s/64/pgtable.h | 10 +++++----- > arch/powerpc/include/asm/nohash/pgtable.h | 2 +- > arch/powerpc/include/asm/pgtable.h | 4 ++-- > arch/riscv/include/asm/pgtable.h | 6 +++--- > arch/x86/include/asm/pgtable.h | 6 +++--- > mm/page_table_check.c | 15 ++++++--------- > 8 files changed, 24 insertions(+), 27 deletions(-) Andrew, may I get your Reviewed-by or Ack-by for v2 so I can take it via the s390 tree as well? Thank you.