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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 51BB5C9830B for ; Wed, 23 Sep 2026 15:03:30 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0B9E36B008A; Wed, 23 Sep 2026 11:03:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 092436B008C; Wed, 23 Sep 2026 11:03:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EEAEC6B0092; Wed, 23 Sep 2026 11:03:28 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id D066A6B008A for ; Wed, 23 Sep 2026 11:03:28 -0400 (EDT) Received: from smtpin14.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 6755CA019C for ; Wed, 23 Sep 2026 15:03:28 +0000 (UTC) X-FDA: 85245345696.14.903B22B Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by imf04.hostedemail.com (Postfix) with ESMTP id 0F1D040016 for ; Wed, 23 Sep 2026 15:03:25 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=ibm.com header.s=pp1 header.b=legRpnlw; spf=pass (imf04.hostedemail.com: domain of hca@linux.ibm.com designates 148.163.158.5 as permitted sender) smtp.mailfrom=hca@linux.ibm.com; dmarc=pass (policy=none) header.from=ibm.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1790175806; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=EPMS68PrdsNZ7gxMuinRUE0IfYfyKMgfUfdMr4QVRdc=; b=JMzDDFbq+TA6KDQ/i1XZm8Y8u4bMyiqc3JaJSBx3pd4o+wT4SvopDLqekm1Wh+nq0OgdWH KD5mQ1Qx86tDD4LPQXUUDGCYJJGWyQl/waEtMqx8dtL7/tVEpKEm0UeNZWDnXhFdFZsc5Z W4fraTkZQepU8noKm+ug+38/825/ZB8= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=ibm.com header.s=pp1 header.b=legRpnlw; spf=pass (imf04.hostedemail.com: domain of hca@linux.ibm.com designates 148.163.158.5 as permitted sender) smtp.mailfrom=hca@linux.ibm.com; dmarc=pass (policy=none) header.from=ibm.com ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1790175806; b=p9lDCprt4kaheg2SOlWv+fUvuaNuFnE55fMyOLYNYjt9RbaDMGCVd7yBXL8NMluhMMNAJZ J0ayEYV8bvogO2IeAERMzGZ7Uv0HAD9g2Tpy/YmsQCpE/2jOxIg6f/TalGCT2wBtiKXYRb e2U2PuVnHBnC2eWkWCI4ozVPsStoJ48= Received: from pps.filterd (m0353725.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 68N8ZSiX1729315; Wed, 23 Sep 2026 15:03:22 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=EPMS68PrdsNZ7gxMuinRUE0IfYfyKM gfUfdMr4QVRdc=; b=legRpnlwwBNFRcTq/CZDs8TTt1LOY8ZALejjsTBirCrBap jsyVl+trUUzyqVEB8KlhRVZmzG1I9+gP7nHuVWjM7R38Czjhon0nCDw2et2wkPXW hjYJzJnznMlSScMmXY9HnBJbCUROYJK1c21U5FJZm1ne/wVNJLnotz3Z4Npvqp87 kRq142raq84vNlGDsYHQpARJXMYTDRjX44oNW6q2F7XWJqlEmHr0eMMNNEaENOF7 irM1oYV34LCGw2+Um971AUwXp3oJa6ajeQD9JopIFo3hLq26TSOECXvFjoHc8G0z sFo15txgDgNzY3CzU1L/ayXY65X1bDZHjUP+a7gg== 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 4gskgqkf58-1 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Wed, 23 Sep 2026 15:03:21 +0000 (GMT) Received: from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1]) by ppma11.dal12v.mail.ibm.com (8.18.1.11/8.18.1.11) with ESMTP id 68NCLOTW008015; Wed, 23 Sep 2026 15:03:21 GMT Received: from smtprelay01.fra02v.mail.ibm.com ([9.218.2.227]) by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 4gvb6qhh5w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 23 Sep 2026 15:03:21 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 68NF3H9Q45678974 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 23 Sep 2026 15:03:17 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 969D42004B; Wed, 23 Sep 2026 15:03:17 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 20BE020043; Wed, 23 Sep 2026 15:03:17 +0000 (GMT) Received: from osiris (unknown [9.111.16.152]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTPS; Wed, 23 Sep 2026 15:03:17 +0000 (GMT) Date: Wed, 23 Sep 2026 17:03:15 +0200 From: Heiko Carstens To: Mike Rapoport Cc: Tal Zussman , Andrew Morton , Baoquan He , Pasha Tatashin , Pratyush Yadav , Dave Young , linux-mm@kvack.org, linux-s390@vger.kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Vasily Gorbik , Alexander Gordeev Subject: Re: [PATCH] vmcore: convert mmap_vmcore_fault() to use folios Message-ID: <20260923150315.9636E6a-hca@linux.ibm.com> References: <20260915-vmcore-fault-folio-v1-1-a0cb6278670f@columbia.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=G+OJgNk5 c=1 sm=1 tr=0 ts=6ab3ea3a cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=kj9zAlcOel0A:10 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=VnNF1IyMAAAA:8 a=tmzvjasgP5eedGtlEQQA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTIzMDA1OCBTYWx0ZWRfX/qSUEZ3ICfbP 7iWCMIwXU5aJvSlo+TUNfSx/zcug0TQTOx7H1zGwf4+35SfwQDbGypwj+EfDXa4pjvxwrTHwywa aLMiZ7JeoxTII636kNUW8fw+7rL19TZEJiSnOOGrfENYkcyI/cPBlxDXnAtLX2Rw4ZZf2k1qH5+ Nii0arC9pVTp49hFkzP+rzL2Alm6JEZYQORsRHW2r/jdPMXwzMtrafxX9acwKjRe8Kisgi5gcfs DMD84THhbs/RpPrGeO+mYOFjQS4F+85CpurAM8dvfIu1SFqHiL7t8In/BWSkl40s74TEb9ZGgMl bGoEKzESMgf11BkvY8/CJUMQMnd85vJoGzVtEOKqPGJyUWHAdfiPtGyKBYmcV8HMBNi2UFoGjoY Q1qnt2CVX+ph5r7n1aE2/ArbJMhaCbQ9RPkN99SJ+E15r8o56d4ZImMCY5Lf86yJUel/07ZOBKm 32lc7ubpUXFyIkLCh+A== X-Proofpoint-ORIG-GUID: 4vjiCbd2QrgeY-ClIPHd8SPJDf4qfF44 X-Proofpoint-GUID: 4vjiCbd2QrgeY-ClIPHd8SPJDf4qfF44 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTIzMDA1OCBTYWx0ZWRfXzOYLA2lYxR2S pq1L4QWw/Hp6whvGa3TuUfsA494gdgXC6XF4Se6Ux5rEwrn+jSscBHwUT1a3BVjBeu+bApkvb5M DnE8RqZcdeWnaTvcqjmfo/TcDeKKetA= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-23_04,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 adultscore=0 phishscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 priorityscore=1501 clxscore=1011 spamscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609230058 X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 0F1D040016 X-Stat-Signature: 8m8ngh1uqxaui3dbncatbtjje11fcga8 X-Rspam-User: X-HE-Tag: 1790175805-343055 X-HE-Meta: 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 ICIT9r7y KjN9ItzNIfu2Z5Q5cpMj/16id28d6ACy6UPbAz0G06POWCqi9CiUOBMOV+47MKq3IkEtO3BJxz3lebfgXAB7C35JnC+gaPdmDKSxXD5fec8hcJazE6+qia65O7BWJGBwUYs815FD8B/jVYW5nzqPhVPJF6u6+TytPmvlo8dmcp8t+GIBF2Px0XF2szu3tA+vqg6crBRAkHQq11w0e6dM0xSFTVZjYHUlgVJjtpAADyEEy6JbTkZ++fojERjgLb+zi7sKKzrIKbDwQg400BwBRoxPLJpNkAOW3Fil2/Zdap4CNC2XXs5FzAI7H2wrJeTUgiip6z/hGHP5GUQFwUeJveH2JgVvynus7Wa8ZPo4cprgSxljNvey0VY3UJlRrOgkSmyQb Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Sep 23, 2026 at 12:24:43PM +0300, Mike Rapoport wrote: > (cc s390 folks) > > On Tue, Sep 15, 2026 at 07:42:15PM -0400, Tal Zussman wrote: > > Use a folio for the page cache page the s390 fault handler reads the > > I tiny bit of context why is this only relevant for s390 would have been > nice :) It is the ifdef CONFIG_S390 just two lines above the context diff of the patch; but I was wondering the same and had to apply the patch and look at the result. :) In any case: Acked-by: Heiko Carstens