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 B98D0C6FD1C for ; Tue, 14 Mar 2023 13:20:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230316AbjCNNUR (ORCPT ); Tue, 14 Mar 2023 09:20:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230138AbjCNNTq (ORCPT ); Tue, 14 Mar 2023 09:19:46 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 21D3F25E29 for ; Tue, 14 Mar 2023 06:16:21 -0700 (PDT) Received: from kwepemm600020.china.huawei.com (unknown [172.30.72.56]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4PbYpm2ms7z17L6S; Tue, 14 Mar 2023 21:12:32 +0800 (CST) Received: from localhost.localdomain (10.175.112.125) by kwepemm600020.china.huawei.com (7.193.23.147) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Tue, 14 Mar 2023 21:15:27 +0800 From: Peng Zhang To: , , CC: , , , , , , ZhangPeng Subject: [PATCH v2 0/3] userfaultfd: convert userfaultfd functions to use folios Date: Tue, 14 Mar 2023 13:13:47 +0000 Message-ID: <20230314131350.924377-1-zhangpeng362@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.112.125] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemm600020.china.huawei.com (7.193.23.147) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: ZhangPeng This patch series converts several userfaultfd functions to use folios. And this series pass the userfaultfd selftests and the LTP userfaultfd test cases. Change log: v1->v2: In patch 2: - Rename copy_large_folio_from_user() to copy_folio_from_user(). - Delete the inner_folio. - kmap() and kmap_atomic() are converted to kmap_local_page(). Use pagefault_disable() to ensure that a deadlock will not occur. - flush_dcache_folio() is placed outside the loop. ZhangPeng (3): userfaultfd: convert mcopy_atomic_pte() to use a folio userfaultfd: convert __mcopy_atomic_hugetlb() to use a folio userfaultfd: convert __mcopy_atomic() to use a folio include/linux/hugetlb.h | 4 +-- include/linux/mm.h | 3 +- include/linux/shmem_fs.h | 2 +- mm/hugetlb.c | 25 +++++++------- mm/memory.c | 27 +++++++-------- mm/shmem.c | 17 +++++---- mm/userfaultfd.c | 74 +++++++++++++++++++--------------------- 7 files changed, 72 insertions(+), 80 deletions(-) -- 2.25.1