From nobody Tue Dec 16 07:12:34 2025 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 8DDA9CD13DA for ; Mon, 18 Sep 2023 10:33:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241411AbjIRKdt (ORCPT ); Mon, 18 Sep 2023 06:33:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38516 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241341AbjIRKdP (ORCPT ); Mon, 18 Sep 2023 06:33:15 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AEF0512E for ; Mon, 18 Sep 2023 03:32:51 -0700 (PDT) Received: from dggpemm100001.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Rq1JK6Y0RzVky5; Mon, 18 Sep 2023 18:29:53 +0800 (CST) Received: from localhost.localdomain (10.175.112.125) by dggpemm100001.china.huawei.com (7.185.36.93) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Mon, 18 Sep 2023 18:32:48 +0800 From: Kefeng Wang To: Andrew Morton CC: , , , , , Zi Yan , Mike Kravetz , , Kefeng Wang Subject: [PATCH 5/6] mm: memory: add vm_normal_pmd_folio() Date: Mon, 18 Sep 2023 18:32:12 +0800 Message-ID: <20230918103213.4166210-6-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230918103213.4166210-1-wangkefeng.wang@huawei.com> References: <20230918103213.4166210-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.175.112.125] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpemm100001.china.huawei.com (7.185.36.93) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The new vm_normal_pmd_folio() wrapper is similar to vm_normal_folio(), which allow them to completely replace the struct page variables with struct folio variables. Signed-off-by: Kefeng Wang --- include/linux/mm.h | 2 ++ mm/memory.c | 10 ++++++++++ 2 files changed, 12 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 12335de50140..7d05ec047186 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2327,6 +2327,8 @@ struct folio *vm_normal_folio(struct vm_area_struct *= vma, unsigned long addr, pte_t pte); struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr, pte_t pte); +struct folio *vm_normal_pmd_folio(struct vm_area_struct *vma, unsigned lon= g addr, + pmd_t pmd); struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long = addr, pmd_t pmd); =20 diff --git a/mm/memory.c b/mm/memory.c index ce3efe7255d2..d4296ee72730 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -689,6 +689,16 @@ struct page *vm_normal_page_pmd(struct vm_area_struct = *vma, unsigned long addr, out: return pfn_to_page(pfn); } + +struct folio *vm_normal_pmd_folio(struct vm_area_struct *vma, unsigned lon= g addr, + pmd_t pmd) +{ + struct page *page =3D vm_normal_page_pmd(vma, addr, pmd); + + if (page) + return page_folio(page); + return NULL; +} #endif =20 static void restore_exclusive_pte(struct vm_area_struct *vma, --=20 2.27.0