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 0A124C6FD1D for ; Thu, 30 Mar 2023 13:41:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232057AbjC3Nlg (ORCPT ); Thu, 30 Mar 2023 09:41:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53248 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230081AbjC3Nle (ORCPT ); Thu, 30 Mar 2023 09:41:34 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 692BDAD09 for ; Thu, 30 Mar 2023 06:41:31 -0700 (PDT) Received: from kwepemm600020.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4PnPcz0htnzgZfb; Thu, 30 Mar 2023 21:38:11 +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; Thu, 30 Mar 2023 21:41:28 +0800 From: Peng Zhang To: , , , , CC: , , , , , ZhangPeng Subject: [PATCH v4 0/6] userfaultfd: convert userfaultfd functions to use folios Date: Thu, 30 Mar 2023 21:40:39 +0800 Message-ID: <20230330134045.375163-1-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. Change log: v3->v4: - Rebase onto mm-unstable per Andrew Morton. Update commit description because some function names are changed. (patch 1,4,6) v2->v3: - Split patch 2 into three patches, suggested by Mike Kravetz. (patch 2-4) - Add a new patch to convert copy_user_huge_page to copy_user_folio, suggested by Mike Kravetz. (patch 5) - Fix two uninitialized bugs, thanks to Dan Carpenter. (patch 6) - Do some indenting cleanups. v1->v2: Modified patch 2, suggested by Matthew Wilcox: - 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 (6): userfaultfd: convert mfill_atomic_pte_copy() to use a folio userfaultfd: use kmap_local_page() in copy_huge_page_from_user() userfaultfd: convert copy_huge_page_from_user() to copy_folio_from_user() userfaultfd: convert mfill_atomic_hugetlb() to use a folio mm: convert copy_user_huge_page() to copy_user_folio() userfaultfd: convert mfill_atomic() to use a folio include/linux/hugetlb.h | 4 +-- include/linux/mm.h | 15 ++++---- include/linux/shmem_fs.h | 4 +-- mm/hugetlb.c | 41 +++++++++++----------- mm/memory.c | 64 ++++++++++++++++------------------ mm/shmem.c | 16 ++++----- mm/userfaultfd.c | 75 ++++++++++++++++++++-------------------- 7 files changed, 106 insertions(+), 113 deletions(-) -- 2.25.1