Received: by 2002:a05:6a10:2726:0:0:0:0 with SMTP id ib38csp1637627pxb; Wed, 30 Mar 2022 07:30:43 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwmY0kc8x0tIfN3lw9tpIEkJ45FwLfFbOsHEcAOd2GUO0IDFzi2uCPBHMEbBfI0xDHF5l43 X-Received: by 2002:a17:906:65d5:b0:6ba:3133:dfb9 with SMTP id z21-20020a17090665d500b006ba3133dfb9mr41180818ejn.56.1648650643127; Wed, 30 Mar 2022 07:30:43 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1648650643; cv=none; d=google.com; s=arc-20160816; b=Yopt+E4NZFGVtarQQfaz00uQyNaC+LzuZGC0yhJ7rIcWPlq9XqfxxSIJdT/2HQ6vA7 KqsUPWSSu5k/e2mxf6kVaiNXhyuXb138wZ60EEORVntYNlx1j6wvFXpFhp88k/stTlui jK24qcn5cI7P8uoYylfLQ4lHD/niXCZ3qZn96LxD8vqCBkNXmYX4/m1rBYC7Y5sKazbb Q51VKcEOEaRLJgg59yF+SirneK2gXjDcLuz4aNLShcLCL6H/AM8t4G6FUOj66ZnpG5jb dHA6/3EZIrb0gE7jMkv2VSmR0ID+8RhqoKSLfx6DVgWb/3sToW6pnIvpK+4SUNc9aKXU 4BkQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:message-id:date:subject:to:from; bh=m2g31v8LQp9EH/vPqeVPQ5SbJH2h+WwXkFde5utofh0=; b=y+pUIJmAtsj6y6Zj9hLqrZrXX7+sAN3ZYSH6Zx6yI24OwXbbnVFeXYGZPr3FsGjWlr H9zYeJb4OM6Sw2MfC/B2mWP7w0OLdFbEseOmFdekoYZVpfYGe6ocsmpkmFZiUbhhzEEO IjQZx0BDeuM5jZlU/1VrmuXGJJ4f0sCIDw5sD3aUur78AG1IjZkO1VeBIPg2gYqoZ6Sa 24jWI9SPtO/9DPA8NiFFEmbyYRM3q+cC52lj07zNgTPPydwOC9SXZvPEwq39gD3E9KdJ 2dkvjdcoaJoa/kSUdW5S36b8EnhMv7vWM7NMoSEmDJGyRXo0M7P7QiggEji9JO08thL9 PXOg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id oq24-20020a170906cc9800b006df76385f1bsi20287230ejb.955.2022.03.30.07.30.15; Wed, 30 Mar 2022 07:30:43 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236802AbiC2MxM (ORCPT + 99 others); Tue, 29 Mar 2022 08:53:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38174 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237160AbiC2MxA (ORCPT ); Tue, 29 Mar 2022 08:53:00 -0400 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2CF9E659E for ; Tue, 29 Mar 2022 05:50:51 -0700 (PDT) Received: from dggpemm500021.china.huawei.com (unknown [172.30.72.54]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4KSTpZ4sXwzBrg5; Tue, 29 Mar 2022 20:46:46 +0800 (CST) Received: from dggpemm500002.china.huawei.com (7.185.36.229) by dggpemm500021.china.huawei.com (7.185.36.109) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Tue, 29 Mar 2022 20:50:49 +0800 Received: from localhost.localdomain (10.175.112.125) by dggpemm500002.china.huawei.com (7.185.36.229) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Tue, 29 Mar 2022 20:50:48 +0800 From: Chen Wandun To: , , Subject: [PATCH 0/2] fix several contiguous memmap assumptions Date: Tue, 29 Mar 2022 21:09:26 +0800 Message-ID: <20220329130928.266323-1-chenwandun@huawei.com> X-Mailer: git-send-email 2.18.0.huawei.25 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.112.125] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpemm500002.china.huawei.com (7.185.36.229) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It isn't true for only SPARSEMEM configs to assume that a compound page has virtually contiguous page structs, so use nth_page to iterate each page. Inspired by: https://lore.kernel.org/linux-mm/20220204195852.1751729-8-willy@infradead.org/ Chen Wandun (2): mm: fix contiguous memmap assumptions about split page mm: fix contiguous memmap assumptions about alloc/free pages include/linux/mm.h | 2 ++ mm/compaction.c | 6 +++--- mm/huge_memory.c | 2 +- mm/page_alloc.c | 14 ++++++++------ 4 files changed, 14 insertions(+), 10 deletions(-) -- 2.18.0.huawei.25