From patchwork Wed Oct 17 22:47:33 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: 10646543 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 6DEFD15E2 for ; Wed, 17 Oct 2018 22:47:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5A967288C7 for ; Wed, 17 Oct 2018 22:47:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4BF11288E4; Wed, 17 Oct 2018 22:47:57 +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=unavailable 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 B4EDF288C7 for ; Wed, 17 Oct 2018 22:47:56 +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 w9HMho5O040066; Wed, 17 Oct 2018 22:47:43 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=fyemRoLDWsknqF/ArvvdK2ZeTZu1pNQGj+VHwIGhd7k=; b=dCQgVupIo2tF5RsOse0B1KzAXa2MxScgQEIgtGFmHNBCcvLd4hbukK9WbAsuZJGn2uA9 g1wZkZMr2DjsBAQmHSgwKGvnc0qo8MMxYbgkGVGmptfokd4Em+lqbE0fsih7YgqdS91D qd4ovQGVuyCtYSDavlj2YdvLIpXv9N5yn9FixysjgGO6Hck8S3b9PQdPKotedm2wxMH8 Vx7wEd71zTXzztf+VVYfhYK4l/9vpZXa0Qca4IiDg4HFHXg4PQTcpLiA/Lg/9w8LH3fw Q2pXK646HDfNq82mELBI9YSIT4tWshSgq5+pjegMZYdUwK2mH7QjKogw/7Ie8AEf4ske /A== Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp2130.oracle.com with ESMTP id 2n384ua08m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 17 Oct 2018 22:47:42 +0000 Received: from oss.oracle.com (oss-old-reserved.oracle.com [137.254.22.2]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w9HMlb6I009747 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 17 Oct 2018 22:47:37 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 1gCubJ-0008JV-1B; Wed, 17 Oct 2018 15:47:37 -0700 Received: from aserv0022.oracle.com ([141.146.126.234]) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1gCubH-0008JI-Gq for ocfs2-devel@oss.oracle.com; Wed, 17 Oct 2018 15:47:35 -0700 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w9HMlZrV009654 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 17 Oct 2018 22:47:35 GMT Received: from abhmp0019.oracle.com (abhmp0019.oracle.com [141.146.116.25]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w9HMlZhk032721; Wed, 17 Oct 2018 22:47:35 GMT Received: from localhost (/10.159.132.177) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 17 Oct 2018 15:47:35 -0700 From: "Darrick J. Wong" To: david@fromorbit.com, darrick.wong@oracle.com Date: Wed, 17 Oct 2018 15:47:33 -0700 Message-ID: <153981645357.5568.13554065440987931594.stgit@magnolia> In-Reply-To: <153981625504.5568.2708520119290577378.stgit@magnolia> References: <153981625504.5568.2708520119290577378.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, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org Subject: [Ocfs2-devel] [PATCH 28/29] xfs: remove xfs_reflink_remap_range 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=9049 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-1810170188 X-Virus-Scanned: ClamAV using ClamSMTP From: Darrick J. Wong Since xfs_file_remap_range is a thin wrapper, move the contents of xfs_reflink_remap_range into the shell. This cuts down on the vfs calls being made from internal xfs code. Signed-off-by: Darrick J. Wong --- fs/xfs/xfs_file.c | 65 ++++++++++++++++++++++++++++++++++++++++------ fs/xfs/xfs_reflink.c | 70 +++----------------------------------------------- fs/xfs/xfs_reflink.h | 10 +++++++ 3 files changed, 70 insertions(+), 75 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 7d42ab8fe6e1..53c9ab8fb777 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -919,20 +919,67 @@ xfs_file_fallocate( return error; } -STATIC loff_t + +loff_t xfs_file_remap_range( - struct file *file_in, - loff_t pos_in, - struct file *file_out, - loff_t pos_out, - loff_t len, - unsigned int remap_flags) + struct file *file_in, + loff_t pos_in, + struct file *file_out, + loff_t pos_out, + loff_t len, + unsigned int remap_flags) { + struct inode *inode_in = file_inode(file_in); + struct xfs_inode *src = XFS_I(inode_in); + struct inode *inode_out = file_inode(file_out); + struct xfs_inode *dest = XFS_I(inode_out); + struct xfs_mount *mp = src->i_mount; + loff_t remapped = 0; + xfs_extlen_t cowextsize; + int ret; + if (remap_flags & ~(REMAP_FILE_DEDUP | REMAP_FILE_ADVISORY)) return -EINVAL; - return xfs_reflink_remap_range(file_in, pos_in, file_out, pos_out, - len, remap_flags); + if (!xfs_sb_version_hasreflink(&mp->m_sb)) + return -EOPNOTSUPP; + + if (XFS_FORCED_SHUTDOWN(mp)) + return -EIO; + + /* Prepare and then clone file data. */ + ret = xfs_reflink_remap_prep(file_in, pos_in, file_out, pos_out, + &len, remap_flags); + if (ret < 0 || len == 0) + return ret; + + trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out); + + ret = xfs_reflink_remap_blocks(src, pos_in, dest, pos_out, len, + &remapped); + if (ret) + goto out_unlock; + + /* + * Carry the cowextsize hint from src to dest if we're sharing the + * entire source file to the entire destination file, the source file + * has a cowextsize hint, and the destination file does not. + */ + cowextsize = 0; + if (pos_in == 0 && len == i_size_read(inode_in) && + (src->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE) && + pos_out == 0 && len >= i_size_read(inode_out) && + !(dest->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE)) + cowextsize = src->i_d.di_cowextsize; + + ret = xfs_reflink_update_dest(dest, pos_out + len, cowextsize, + remap_flags); + +out_unlock: + xfs_reflink_remap_unlock(file_in, file_out); + if (ret) + trace_xfs_reflink_remap_range_error(dest, ret, _RET_IP_); + return remapped > 0 ? remapped : ret; } STATIC int diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index bccc66316cc4..84f372f7ea04 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -916,7 +916,7 @@ xfs_reflink_set_inode_flag( /* * Update destination inode size & cowextsize hint, if necessary. */ -STATIC int +int xfs_reflink_update_dest( struct xfs_inode *dest, xfs_off_t newlen, @@ -1116,7 +1116,7 @@ xfs_reflink_remap_extent( /* * Iteratively remap one file's extents (and holes) to another's. */ -STATIC int +int xfs_reflink_remap_blocks( struct xfs_inode *src, loff_t pos_in, @@ -1232,7 +1232,7 @@ xfs_iolock_two_inodes_and_break_layout( } /* Unlock both inodes after they've been prepped for a range clone. */ -STATIC void +void xfs_reflink_remap_unlock( struct file *file_in, struct file *file_out) @@ -1300,7 +1300,7 @@ xfs_reflink_zero_posteof( * stale data in the destination file. Hence we reject these clone attempts with * -EINVAL in this case. */ -STATIC int +int xfs_reflink_remap_prep( struct file *file_in, loff_t pos_in, @@ -1370,68 +1370,6 @@ xfs_reflink_remap_prep( return ret; } -/* - * Link a range of blocks from one file to another. - */ -loff_t -xfs_reflink_remap_range( - struct file *file_in, - loff_t pos_in, - struct file *file_out, - loff_t pos_out, - loff_t len, - unsigned int remap_flags) -{ - struct inode *inode_in = file_inode(file_in); - struct xfs_inode *src = XFS_I(inode_in); - struct inode *inode_out = file_inode(file_out); - struct xfs_inode *dest = XFS_I(inode_out); - struct xfs_mount *mp = src->i_mount; - loff_t remapped = 0; - xfs_extlen_t cowextsize; - int ret; - - if (!xfs_sb_version_hasreflink(&mp->m_sb)) - return -EOPNOTSUPP; - - if (XFS_FORCED_SHUTDOWN(mp)) - return -EIO; - - /* Prepare and then clone file data. */ - ret = xfs_reflink_remap_prep(file_in, pos_in, file_out, pos_out, - &len, remap_flags); - if (ret < 0 || len == 0) - return ret; - - trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out); - - ret = xfs_reflink_remap_blocks(src, pos_in, dest, pos_out, len, - &remapped); - if (ret) - goto out_unlock; - - /* - * Carry the cowextsize hint from src to dest if we're sharing the - * entire source file to the entire destination file, the source file - * has a cowextsize hint, and the destination file does not. - */ - cowextsize = 0; - if (pos_in == 0 && len == i_size_read(inode_in) && - (src->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE) && - pos_out == 0 && len >= i_size_read(inode_out) && - !(dest->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE)) - cowextsize = src->i_d.di_cowextsize; - - ret = xfs_reflink_update_dest(dest, pos_out + len, cowextsize, - remap_flags); - -out_unlock: - xfs_reflink_remap_unlock(file_in, file_out); - if (ret) - trace_xfs_reflink_remap_range_error(dest, ret, _RET_IP_); - return remapped > 0 ? remapped : ret; -} - /* * The user wants to preemptively CoW all shared blocks in this file, * which enables us to turn off the reflink flag. Iterate all diff --git a/fs/xfs/xfs_reflink.h b/fs/xfs/xfs_reflink.h index cbc26ff79a8f..28a84edda889 100644 --- a/fs/xfs/xfs_reflink.h +++ b/fs/xfs/xfs_reflink.h @@ -36,5 +36,15 @@ extern int xfs_reflink_clear_inode_flag(struct xfs_inode *ip, struct xfs_trans **tpp); extern int xfs_reflink_unshare(struct xfs_inode *ip, xfs_off_t offset, xfs_off_t len); +extern int xfs_reflink_remap_prep(struct file *file_in, loff_t pos_in, + struct file *file_out, loff_t pos_out, loff_t *len, + unsigned int remap_flags); +extern int xfs_reflink_remap_blocks(struct xfs_inode *src, loff_t pos_in, + struct xfs_inode *dest, loff_t pos_out, loff_t remap_len, + loff_t *remapped); +extern int xfs_reflink_update_dest(struct xfs_inode *dest, xfs_off_t newlen, + xfs_extlen_t cowextsize, unsigned int remap_flags); +extern void xfs_reflink_remap_unlock(struct file *file_in, + struct file *file_out); #endif /* __XFS_REFLINK_H */