From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from userp2120.oracle.com ([156.151.31.85]:41766 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727157AbeIZQ3j (ORCPT ); Wed, 26 Sep 2018 12:29:39 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w8QADwhf029188 for ; Wed, 26 Sep 2018 10:17:25 GMT Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp2120.oracle.com with ESMTP id 2mnvtur888-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 26 Sep 2018 10:17:24 +0000 Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w8QAHOcZ020376 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 26 Sep 2018 10:17:24 GMT Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w8QAHOZC014190 for ; Wed, 26 Sep 2018 10:17:24 GMT From: Allison Henderson Subject: [PATCH v9 15/28] xfs: get directory offset when removing directory name Date: Wed, 26 Sep 2018 03:14:54 -0700 Message-Id: <1537956907-10244-16-git-send-email-allison.henderson@oracle.com> In-Reply-To: <1537956907-10244-1-git-send-email-allison.henderson@oracle.com> References: <1537956907-10244-1-git-send-email-allison.henderson@oracle.com> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: linux-xfs@vger.kernel.org From: Mark Tinguely Return the directory offset information when removing an entry to the directory. This offset will be used as the parent pointer offset in xfs_remove. [dchinner: forward ported and cleaned up] [achender: rebased, changed __unint32_t to xfs_dir2_dataptr_t, Changed typedefs to raw struct types] Signed-off-by: Mark Tinguely Signed-off-by: Dave Chinner Signed-off-by: Allison Henderson Reviewed-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_dir2.c | 6 +++++- fs/xfs/libxfs/xfs_dir2.h | 3 ++- fs/xfs/libxfs/xfs_dir2_block.c | 4 ++-- fs/xfs/libxfs/xfs_dir2_leaf.c | 5 +++-- fs/xfs/libxfs/xfs_dir2_node.c | 5 +++-- fs/xfs/libxfs/xfs_dir2_sf.c | 2 ++ fs/xfs/xfs_inode.c | 4 ++-- 7 files changed, 19 insertions(+), 10 deletions(-) diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index d334e66..f5475e7 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -422,7 +422,8 @@ xfs_dir_removename( struct xfs_inode *dp, struct xfs_name *name, xfs_ino_t ino, - xfs_extlen_t total) /* bmap's total block count */ + xfs_extlen_t total, /* bmap's total block count */ + xfs_dir2_dataptr_t *offset) /* OUT: offset in directory */ { struct xfs_da_args *args; int rval; @@ -467,6 +468,9 @@ xfs_dir_removename( else rval = xfs_dir2_node_removename(args); out_free: + if (offset) + *offset = args->offset; + kmem_free(args); return rval; } diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h index c164a38..2cf1d87 100644 --- a/fs/xfs/libxfs/xfs_dir2.h +++ b/fs/xfs/libxfs/xfs_dir2.h @@ -123,7 +123,8 @@ extern int xfs_dir_lookup(struct xfs_trans *tp, struct xfs_inode *dp, struct xfs_name *ci_name); extern int xfs_dir_removename(struct xfs_trans *tp, struct xfs_inode *dp, struct xfs_name *name, xfs_ino_t ino, - xfs_extlen_t tot); + xfs_extlen_t tot, + xfs_dir2_dataptr_t *offset); extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp, struct xfs_name *name, xfs_ino_t inum, xfs_extlen_t tot); diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c index a31702c..aa84c45 100644 --- a/fs/xfs/libxfs/xfs_dir2_block.c +++ b/fs/xfs/libxfs/xfs_dir2_block.c @@ -786,9 +786,9 @@ xfs_dir2_block_removename( /* * Point to the data entry using the leaf entry. */ + args->offset = be32_to_cpu(blp[ent].address); dep = (xfs_dir2_data_entry_t *)((char *)hdr + - xfs_dir2_dataptr_to_off(args->geo, - be32_to_cpu(blp[ent].address))); + xfs_dir2_dataptr_to_off(args->geo, args->offset)); /* * Mark the data entry's space free. */ diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c index 37450ca..5e68c39 100644 --- a/fs/xfs/libxfs/xfs_dir2_leaf.c +++ b/fs/xfs/libxfs/xfs_dir2_leaf.c @@ -1402,9 +1402,10 @@ xfs_dir2_leaf_removename( * Point to the leaf entry, use that to point to the data entry. */ lep = &ents[index]; - db = xfs_dir2_dataptr_to_db(args->geo, be32_to_cpu(lep->address)); + args->offset = be32_to_cpu(lep->address); + db = xfs_dir2_dataptr_to_db(args->geo, args->offset); dep = (xfs_dir2_data_entry_t *)((char *)hdr + - xfs_dir2_dataptr_to_off(args->geo, be32_to_cpu(lep->address))); + xfs_dir2_dataptr_to_off(args->geo, args->offset)); needscan = needlog = 0; oldbest = be16_to_cpu(bf[0].length); ltp = xfs_dir2_leaf_tail_p(args->geo, leaf); diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c index 654bbf4..3c1698f 100644 --- a/fs/xfs/libxfs/xfs_dir2_node.c +++ b/fs/xfs/libxfs/xfs_dir2_node.c @@ -1238,9 +1238,10 @@ xfs_dir2_leafn_remove( /* * Extract the data block and offset from the entry. */ - db = xfs_dir2_dataptr_to_db(args->geo, be32_to_cpu(lep->address)); + args->offset = be32_to_cpu(lep->address); + db = xfs_dir2_dataptr_to_db(args->geo, args->offset); ASSERT(dblk->blkno == db); - off = xfs_dir2_dataptr_to_off(args->geo, be32_to_cpu(lep->address)); + off = xfs_dir2_dataptr_to_off(args->geo, args->offset); ASSERT(dblk->index == off); /* diff --git a/fs/xfs/libxfs/xfs_dir2_sf.c b/fs/xfs/libxfs/xfs_dir2_sf.c index 549656b..e65615c 100644 --- a/fs/xfs/libxfs/xfs_dir2_sf.c +++ b/fs/xfs/libxfs/xfs_dir2_sf.c @@ -905,6 +905,8 @@ xfs_dir2_sf_removename( XFS_CMP_EXACT) { ASSERT(dp->d_ops->sf_get_ino(sfp, sfep) == args->inumber); + args->offset = xfs_dir2_byte_to_dataptr( + xfs_dir2_sf_get_offset(sfep)); break; } } diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 6aea30f..67a5437 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2621,7 +2621,7 @@ xfs_remove( if (error) goto out_trans_cancel; - error = xfs_dir_removename(tp, dp, name, ip->i_ino, resblks); + error = xfs_dir_removename(tp, dp, name, ip->i_ino, resblks, NULL); if (error) { ASSERT(error != -ENOENT); goto out_trans_cancel; @@ -3099,7 +3099,7 @@ xfs_rename( spaceres); } else error = xfs_dir_removename(tp, src_dp, src_name, src_ip->i_ino, - spaceres); + spaceres, NULL); if (error) goto out_trans_cancel; -- 2.7.4