From patchwork Tue Nov 1 21:06:15 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 9408113 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E311E60722 for ; Tue, 1 Nov 2016 21:22:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D69DD29A50 for ; Tue, 1 Nov 2016 21:22:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CB8A229A73; Tue, 1 Nov 2016 21:22:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id C3D6D29A5B for ; Tue, 1 Nov 2016 21:22:14 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id E83F981D28; Tue, 1 Nov 2016 14:22:12 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id BE1F681D12 for ; Tue, 1 Nov 2016 14:22:11 -0700 (PDT) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 0E8CFABC8; Tue, 1 Nov 2016 21:22:11 +0000 (UTC) Received: by quack2.suse.cz (Postfix, from userid 1000) id 4A3541E0F97; Tue, 1 Nov 2016 22:06:27 +0100 (CET) From: Jan Kara To: linux-ext4@vger.kernel.org Subject: [PATCH 05/11] ext4: Use iomap for zeroing blocks in DAX mode Date: Tue, 1 Nov 2016 22:06:15 +0100 Message-Id: <1478034381-19037-6-git-send-email-jack@suse.cz> X-Mailer: git-send-email 2.6.6 In-Reply-To: <1478034381-19037-1-git-send-email-jack@suse.cz> References: <1478034381-19037-1-git-send-email-jack@suse.cz> X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fsdevel@vger.kernel.org, Dave Chinner , Jan Kara , Ted Tso , linux-nvdimm@lists.01.org MIME-Version: 1.0 Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP Use iomap infrastructure for zeroing blocks when in DAX mode. ext4_iomap_begin() handles read requests just fine and that's all that is needed for iomap_zero_range(). Signed-off-by: Jan Kara --- fs/ext4/inode.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index cc10145ea98b..ac26a390f14c 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3844,8 +3844,10 @@ static int ext4_block_zero_page_range(handle_t *handle, if (length > max || length < 0) length = max; - if (IS_DAX(inode)) - return dax_zero_page_range(inode, from, length, ext4_get_block); + if (IS_DAX(inode)) { + return iomap_zero_range(inode, from, length, NULL, + &ext4_iomap_ops); + } return __ext4_block_zero_page_range(handle, mapping, from, length); }