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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 021B3C4332F for ; Fri, 25 Nov 2022 11:18:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229690AbiKYLSg (ORCPT ); Fri, 25 Nov 2022 06:18:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229452AbiKYLSf (ORCPT ); Fri, 25 Nov 2022 06:18:35 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B6AC9BC18 for ; Fri, 25 Nov 2022 03:17:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669375058; h=from:from: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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zyy3mklCUVWd6KO+luDiECSd4Ib/ky9wcUWfw8KGsR8=; b=MuZyMktORvyqfqoE1nRBQw7oqEBhpY1PHHY6N1Xv0VlOLEcFRT3FE/LNBXG4qHPiTiODvS N7kGM7OQ5uai90DUkOv5oHnSRSfrTNOpbI5pq0sJdfPosYaGhWPGyeugo8eUmoS23rTgw9 U/v0FMylzaqLKtHQiUp2gKSezr1THRk= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-597-MPAszM1nOqeO_Xj38mOBnQ-1; Fri, 25 Nov 2022 06:17:30 -0500 X-MC-Unique: MPAszM1nOqeO_Xj38mOBnQ-1 Received: by mail-wm1-f70.google.com with SMTP id b47-20020a05600c4aaf00b003d031aeb1b6so4007564wmp.9 for ; Fri, 25 Nov 2022 03:17:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:organization:from:references :cc:to:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=zyy3mklCUVWd6KO+luDiECSd4Ib/ky9wcUWfw8KGsR8=; b=RXLE1IIIZTEyRkJYgoCWIfCaBYovk/6wUJYZ9sP00WVSn/ihOtZE48giRfh2cnRkdP 23FbVqlCOoFPVkSOITwyLAkFzNtRQqSZIYwZ7sdDx3tZ+0PIAJJu+2KrXoixbFPPKxvu iBFYbGTEz2Hp83TKo2jr2ZIrzqDO5NgpYIt53P6goP90uTBdPQNF7u4voH7cg1p3ZuOS +hAS6nFQ2a3l6eOXbDsx/kuidSdHjlFuvqiBLjZFOs1iXsZNRrI1yDzosSZDFsTo3TtO slT1pEYftZ9pi8e+4UzyBFjDTggowuGTaPoabdTWJ5jr/M02InRftKCS0eA4l6eMrhs4 ESSw== X-Gm-Message-State: ANoB5pkxDebvdGCLFIUc1Jxa8EAc5BRgN345oqMkp5B3BMCORIjluAMo NZLLWqOSxh1uNxCy3osOnAR1w8DJCPOf77t6B2uzR1+rwqQdsx5X7oF2g/quUGYsbUZHjwPIoYz rheQGna9LlpvGwa5JGmZ1eg== X-Received: by 2002:a05:600c:34cd:b0:3cf:9877:c7e0 with SMTP id d13-20020a05600c34cd00b003cf9877c7e0mr20749400wmq.109.1669375048833; Fri, 25 Nov 2022 03:17:28 -0800 (PST) X-Google-Smtp-Source: AA0mqf6VLs2svU8i4vFDb1wfwGRLcn65K+FRFFunWp795dzeb7ohMuetGOCftJvcxOMVJ5DgxhudNg== X-Received: by 2002:a05:600c:34cd:b0:3cf:9877:c7e0 with SMTP id d13-20020a05600c34cd00b003cf9877c7e0mr20749375wmq.109.1669375048470; Fri, 25 Nov 2022 03:17:28 -0800 (PST) Received: from ?IPV6:2003:cb:c704:d800:887:cbec:f31f:a08? (p200300cbc704d8000887cbecf31f0a08.dip0.t-ipconnect.de. [2003:cb:c704:d800:887:cbec:f31f:a08]) by smtp.gmail.com with ESMTPSA id h20-20020a05600c351400b003b4935f04a4sm6326099wmq.5.2022.11.25.03.17.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 25 Nov 2022 03:17:28 -0800 (PST) Message-ID: <06b0a108-0496-ad28-a88c-a4d2fd554ca8@redhat.com> Date: Fri, 25 Nov 2022 12:17:27 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.1 Subject: Re: Test case for "mm/thp: carry over dirty bit when thp splits on pmd" Content-Language: en-US To: hev Cc: Peter Xu , Anatoly Pugachev , Thorsten Leemhuis , Sparc kernel list , linux-mm References: <79cf9e73-440c-5ff0-856f-3df6c13061ef@redhat.com> From: David Hildenbrand Organization: Red Hat In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: sparclinux@vger.kernel.org On 25.11.22 12:15, hev wrote: > Hi, David, > >> >> Just to ask again, >> >> is code like >> maybe_mkwrite(pte_mkdirty(entry), vma); >> >> Like we have in copy_present_page(), wp_page_reuse(), wp_page_copy() ... >> broken on LoongArch of the VMA lacks VM_WRITE? > > Sorry for the late reply. In this test case, The VMA doesn't lack VM_WRITE. > Let me ask again: is this a problem in all of the functions I mentioned above were we *could* lack VM_WRITE? Because that needs fixing independently of this issue here. -- Thanks, David / dhildenb