From patchwork Wed Apr 7 13:38:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiyang Ruan X-Patchwork-Id: 12188389 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04275C43461 for ; Wed, 7 Apr 2021 13:38:38 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B18EC61284 for ; Wed, 7 Apr 2021 13:38:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B18EC61284 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=fujitsu.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 16BC1100EBB98; Wed, 7 Apr 2021 06:38:37 -0700 (PDT) Received-SPF: Neutral (mailfrom) identity=mailfrom; client-ip=183.91.158.132; helo=heian.cn.fujitsu.com; envelope-from=ruansy.fnst@fujitsu.com; receiver= Received: from heian.cn.fujitsu.com (mail.cn.fujitsu.com [183.91.158.132]) by ml01.01.org (Postfix) with ESMTP id 08B97100ED480 for ; Wed, 7 Apr 2021 06:38:33 -0700 (PDT) IronPort-HdrOrdr: A9a23:r/A2yKmE+fEX87hrXqSrAW7HDtjpDfLM3DAbvn1ZSRFFG/GwvcaogfgdyFvImC8cMUtQ/eyoFYuhZTfn9ZBz6ZQMJrvKZmTbkUahMY0K1+Xf6hLtFyD0/uRekYdMGpIVNPTeFl5/5Pya3CCdM/INhOaK67qpg+C29QYJcShPZ7t75wl0Tia3e3cGJzVuPpYyGJqC6scvnVPJFkg/VNixBXUOQoH41r/2va/hCCRnOzcXrCGKjR6NrIXxCgWk2H4lOA9n8PMP9nfknmXCipmejw== X-IronPort-AV: E=Sophos;i="5.82,203,1613404800"; d="scan'208";a="106746627" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 07 Apr 2021 21:38:31 +0800 Received: from G08CNEXMBPEKD04.g08.fujitsu.local (unknown [10.167.33.201]) by cn.fujitsu.com (Postfix) with ESMTP id D35764CEA876; Wed, 7 Apr 2021 21:38:27 +0800 (CST) Received: from G08CNEXJMPEKD02.g08.fujitsu.local (10.167.33.202) by G08CNEXMBPEKD04.g08.fujitsu.local (10.167.33.201) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 7 Apr 2021 21:38:27 +0800 Received: from G08CNEXCHPEKD04.g08.fujitsu.local (10.167.33.200) by G08CNEXJMPEKD02.g08.fujitsu.local (10.167.33.202) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 7 Apr 2021 21:38:27 +0800 Received: from irides.mr.mr.mr (10.167.225.141) by G08CNEXCHPEKD04.g08.fujitsu.local (10.167.33.209) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 7 Apr 2021 21:38:26 +0800 From: Shiyang Ruan To: , , , Subject: [PATCH v2 0/3] fsdax: Factor helper functions to simplify the code Date: Wed, 7 Apr 2021 21:38:20 +0800 Message-ID: <20210407133823.828176-1-ruansy.fnst@fujitsu.com> X-Mailer: git-send-email 2.31.0 MIME-Version: 1.0 X-yoursite-MailScanner-ID: D35764CEA876.A0B2C X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: ruansy.fnst@fujitsu.com Message-ID-Hash: YXKYC5XQFNXML5AS6JN3KRDWD5DIAX6Z X-Message-ID-Hash: YXKYC5XQFNXML5AS6JN3KRDWD5DIAX6Z X-MailFrom: ruansy.fnst@fujitsu.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation CC: darrick.wong@oracle.com, willy@infradead.org, jack@suse.cz, viro@zeniv.linux.org.uk, linux-btrfs@vger.kernel.org, david@fromorbit.com, hch@lst.de, rgoldwyn@suse.de X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: The page fault part of fsdax code is little complex. In order to add CoW feature and make it easy to understand, I was suggested to factor some helper functions to simplify the current dax code. This is separated from the previous patchset called "V3 fsdax,xfs: Add reflink&dedupe support for fsdax", and the previous comments are here[1]. [1]: https://patchwork.kernel.org/project/linux-nvdimm/patch/20210319015237.993880-3-ruansy.fnst@fujitsu.com/ Changes from V1: - fix Ritesh's email address - simplify return logic in dax_fault_cow_page() (Rebased on v5.12-rc5) == Shiyang Ruan (3): fsdax: Factor helpers to simplify dax fault code fsdax: Factor helper: dax_fault_actor() fsdax: Output address in dax_iomap_pfn() and rename it fs/dax.c | 439 +++++++++++++++++++++++++++++-------------------------- 1 file changed, 232 insertions(+), 207 deletions(-)