From patchwork Tue Oct 16 03:21:02 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: 10643049 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 85B5618FD for ; Tue, 16 Oct 2018 03:21:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 75B2828F69 for ; Tue, 16 Oct 2018 03:21:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6991E28E72; Tue, 16 Oct 2018 03:21:13 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 22B1D28F69 for ; Tue, 16 Oct 2018 03:21:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727417AbeJPLJY (ORCPT ); Tue, 16 Oct 2018 07:09:24 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:60766 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726958AbeJPLJY (ORCPT ); Tue, 16 Oct 2018 07:09:24 -0400 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 w9G3J5OE051357; Tue, 16 Oct 2018 03:21:06 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : from : to : cc : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=corp-2018-07-02; bh=qvAdS5qtNPwhhtvBsCuVRJiAsJYI4Kg7IlMUAqU/umo=; b=UxxSYl/DXrxO/IZg8pk5FZRVB9feaAIbDplQfXDrHRWpbXSAh655KSzHfj9HJTq2FRun 5qWpfgKFkoHUVYXWz28OK9xEaPq3F3TsVSy71nU/I2Pq6Nk+kE3QdsDx/6GamStLikvt RLRqV78hcWqEVgCwxlu/u6rkFjibAfqEoeKUA0OFXP0SG5B4EQ+pmtGQnpQPHILGfor6 scK0Oab9mLmCte2BvdlJ/15BEr6ylQ8dUU1JXef0ajmgJ+f89iwIOJ3URUgAv1+6/92X i8zXaPbKSpSMDvsQvpDNOB55jRz3gSBXZk82gUO/HUdUC7VAqWblExDwxgc0BTb+GRJA cg== Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp2130.oracle.com with ESMTP id 2n384tx2bg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 16 Oct 2018 03:21:06 +0000 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w9G3L4vD006101 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 16 Oct 2018 03:21:04 GMT Received: from abhmp0015.oracle.com (abhmp0015.oracle.com [141.146.116.21]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id w9G3L3G5011041; Tue, 16 Oct 2018 03:21:03 GMT Received: from localhost (/10.159.227.150) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 15 Oct 2018 20:21:03 -0700 Subject: [PATCH 26/26] xfs: remove redundant remap partial EOF block checks From: "Darrick J. Wong" To: david@fromorbit.com, darrick.wong@oracle.com 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, linux-btrfs@vger.kernel.org, Dave Chinner , linux-fsdevel@vger.kernel.org, ocfs2-devel@oss.oracle.com Date: Mon, 15 Oct 2018 20:21:02 -0700 Message-ID: <153966006214.3607.15131077363912605792.stgit@magnolia> In-Reply-To: <153965939489.1256.7400115244528045860.stgit@magnolia> References: <153965939489.1256.7400115244528045860.stgit@magnolia> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9047 signatures=668706 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-1810160028 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org 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 Reviewed-by: Christoph Hellwig --- 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 af3368862c56..755d4a9446e3 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -1307,7 +1307,6 @@ 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 */ @@ -1335,24 +1334,6 @@ 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)