From patchwork Sun Oct 21 16:18:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 10651271 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8311613A9 for ; Sun, 21 Oct 2018 16:18:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7176527F93 for ; Sun, 21 Oct 2018 16:18:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 65A7028459; Sun, 21 Oct 2018 16:18:24 +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=-5.3 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from userp2130.oracle.com (userp2130.oracle.com [156.151.31.86]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 03AC927F93 for ; Sun, 21 Oct 2018 16:18:23 +0000 (UTC) Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w9LGEt1F154508; Sun, 21 Oct 2018 16:18:09 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : date : message-id : in-reply-to : references : mime-version : cc : subject : list-id : list-unsubscribe : list-archive : list-post : list-help : list-subscribe : content-type : content-transfer-encoding : sender; s=corp-2018-07-02; bh=pl5dzGBjfpp3bclL74M5t3Ut7zySdhKpRczp+R8+NH4=; b=JeNhI6fuYtFEBNFDUS/7CpMwzdf9YAzlvWOxochElCNrxOl57H0DhlnfsU27qdibeHqT tiewdPjKheqXIcVwOJ9VyxQN5LPdgNGnfQfY1bgb//targKlEUNpC2T17e0GHRs6nrQb BZjaFEggtozTKz3OQXsOIr7e0zBuMnJlrn4w/p+q8OpTTEekpFsYwh32NQyM6eVlQ9va TFhGDcHEmtPTfHYvngdTosLn8UmlNIUMRXKxrkROzUy4V/zeXrtG55BsDe/F8eYtOKNE Iquhm6rdpHDJxcvW+9z11QvS1++Uezl4Jv3GbjujWiHktUH9WO9rXk8ShBZ3MQEkTQh6 FA== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp2130.oracle.com with ESMTP id 2n7ustu1vt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 21 Oct 2018 16:18:09 +0000 Received: from oss.oracle.com (oss-old-reserved.oracle.com [137.254.22.2]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w9LGI8Xt007397 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 21 Oct 2018 16:18:09 GMT Received: from localhost ([127.0.0.1] helo=lb-oss.oracle.com) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1gEGQa-0000O4-RJ; Sun, 21 Oct 2018 09:18:08 -0700 Received: from aserv0021.oracle.com ([141.146.126.233]) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1gEGQY-0000Nm-P2 for ocfs2-devel@oss.oracle.com; Sun, 21 Oct 2018 09:18:06 -0700 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w9LGI6ma011272 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 21 Oct 2018 16:18:06 GMT Received: from abhmp0012.oracle.com (abhmp0012.oracle.com [141.146.116.18]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id w9LGI6wA025010; Sun, 21 Oct 2018 16:18:06 GMT Received: from localhost (/10.159.225.70) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 21 Oct 2018 09:18:05 -0700 From: "Darrick J. Wong" To: david@fromorbit.com, darrick.wong@oracle.com Date: Sun, 21 Oct 2018 09:18:04 -0700 Message-ID: <154013868417.29026.5852711121957107278.stgit@magnolia> In-Reply-To: <154013850285.29026.16168387526580596209.stgit@magnolia> References: <154013850285.29026.16168387526580596209.stgit@magnolia> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Cc: sandeen@redhat.com, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org, ocfs2-devel@oss.oracle.com, Dave Chinner , linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org Subject: [Ocfs2-devel] [PATCH 26/28] xfs: remove redundant remap partial EOF block checks X-BeenThere: ocfs2-devel@oss.oracle.com X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: ocfs2-devel-bounces@oss.oracle.com Errors-To: ocfs2-devel-bounces@oss.oracle.com X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9053 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1810210151 X-Virus-Scanned: ClamAV using ClamSMTP From: Darrick J. Wong Now that we've moved the partial EOF block checks to the VFS helpers, we can remove the redundant functionality from XFS. Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner --- fs/xfs/xfs_reflink.c | 19 ------------------- 1 file changed, 19 deletions(-) diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index 4abb2aea8f31..bccc66316cc4 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -1314,7 +1314,6 @@ xfs_reflink_remap_prep( struct inode *inode_out = file_inode(file_out); struct xfs_inode *dest = XFS_I(inode_out); bool same_inode = (inode_in == inode_out); - u64 blkmask = i_blocksize(inode_in) - 1; ssize_t ret; /* Lock both files against IO */ @@ -1342,24 +1341,6 @@ xfs_reflink_remap_prep( if (ret < 0 || *len == 0) goto out_unlock; - /* - * If the dedupe data matches, chop off the partial EOF block - * from the source file so we don't try to dedupe the partial - * EOF block. - */ - if (remap_flags & REMAP_FILE_DEDUP) { - *len &= ~blkmask; - } else if (*len & blkmask) { - /* - * The user is attempting to share a partial EOF block, - * if it's inside the destination EOF then reject it. - */ - if (pos_out + *len < i_size_read(inode_out)) { - ret = -EINVAL; - goto out_unlock; - } - } - /* Attach dquots to dest inode before changing block map */ ret = xfs_qm_dqattach(dest); if (ret)