Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2928 insertions, 0 deletions

diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
new file mode 100644
index 000000000..04a8505bd
--- /dev/null
+++ b/fs/ocfs2/namei.c
@@ -0,0 +1,2928 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * namei.c
+ *
+ * Create and rename file, directory, symlinks
+ *
+ * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
+ *
+ *  Portions of this code from linux/fs/ext3/dir.c
+ *
+ *  Copyright (C) 1992, 1993, 1994, 1995
+ *  Remy Card (card@masi.ibp.fr)
+ *  Laboratoire MASI - Institut Blaise pascal
+ *  Universite Pierre et Marie Curie (Paris VI)
+ *
+ *   from
+ *
+ *   linux/fs/minix/dir.c
+ *
+ *   Copyright (C) 1991, 1992 Linux Torvalds
+ */
+
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/highmem.h>
+#include <linux/quotaops.h>
+#include <linux/iversion.h>
+
+#include <cluster/masklog.h>
+
+#include "ocfs2.h"
+
+#include "alloc.h"
+#include "dcache.h"
+#include "dir.h"
+#include "dlmglue.h"
+#include "extent_map.h"
+#include "file.h"
+#include "inode.h"
+#include "journal.h"
+#include "namei.h"
+#include "suballoc.h"
+#include "super.h"
+#include "symlink.h"
+#include "sysfile.h"
+#include "uptodate.h"
+#include "xattr.h"
+#include "acl.h"
+#include "ocfs2_trace.h"
+#include "ioctl.h"
+
+#include "buffer_head_io.h"
+
+static int ocfs2_mknod_locked(struct ocfs2_super *osb,
+			      struct inode *dir,
+			      struct inode *inode,
+			      dev_t dev,
+			      struct buffer_head **new_fe_bh,
+			      struct buffer_head *parent_fe_bh,
+			      handle_t *handle,
+			      struct ocfs2_alloc_context *inode_ac);
+
+static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
+				    struct inode **ret_orphan_dir,
+				    u64 blkno,
+				    char *name,
+				    struct ocfs2_dir_lookup_result *lookup,
+				    bool dio);
+
+static int ocfs2_orphan_add(struct ocfs2_super *osb,
+			    handle_t *handle,
+			    struct inode *inode,
+			    struct buffer_head *fe_bh,
+			    char *name,
+			    struct ocfs2_dir_lookup_result *lookup,
+			    struct inode *orphan_dir_inode,
+			    bool dio);
+
+static int ocfs2_create_symlink_data(struct ocfs2_super *osb,
+				     handle_t *handle,
+				     struct inode *inode,
+				     const char *symname);
+
+static int ocfs2_double_lock(struct ocfs2_super *osb,
+			     struct buffer_head **bh1,
+			     struct inode *inode1,
+			     struct buffer_head **bh2,
+			     struct inode *inode2,
+			     int rename);
+
+static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2);
+/* An orphan dir name is an 8 byte value, printed as a hex string */
+#define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64)))
+
+static struct dentry *ocfs2_lookup(struct inode *dir, struct dentry *dentry,
+				   unsigned int flags)
+{
+	int status;
+	u64 blkno;
+	struct inode *inode = NULL;
+	struct dentry *ret;
+	struct ocfs2_inode_info *oi;
+
+	trace_ocfs2_lookup(dir, dentry, dentry->d_name.len,
+			   dentry->d_name.name,
+			   (unsigned long long)OCFS2_I(dir)->ip_blkno, 0);
+
+	if (dentry->d_name.len > OCFS2_MAX_FILENAME_LEN) {
+		ret = ERR_PTR(-ENAMETOOLONG);
+		goto bail;
+	}
+
+	status = ocfs2_inode_lock_nested(dir, NULL, 0, OI_LS_PARENT);
+	if (status < 0) {
+		if (status != -ENOENT)
+			mlog_errno(status);
+		ret = ERR_PTR(status);
+		goto bail;
+	}
+
+	status = ocfs2_lookup_ino_from_name(dir, dentry->d_name.name,
+					    dentry->d_name.len, &blkno);
+	if (status < 0)
+		goto bail_add;
+
+	inode = ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0);
+	if (IS_ERR(inode)) {
+		ret = ERR_PTR(-EACCES);
+		goto bail_unlock;
+	}
+
+	oi = OCFS2_I(inode);
+	/* Clear any orphaned state... If we were able to look up the
+	 * inode from a directory, it certainly can't be orphaned. We
+	 * might have the bad state from a node which intended to
+	 * orphan this inode but crashed before it could commit the
+	 * unlink. */
+	spin_lock(&oi->ip_lock);
+	oi->ip_flags &= ~OCFS2_INODE_MAYBE_ORPHANED;
+	spin_unlock(&oi->ip_lock);
+
+bail_add:
+	ret = d_splice_alias(inode, dentry);
+
+	if (inode) {
+		/*
+		 * If d_splice_alias() finds a DCACHE_DISCONNECTED
+		 * dentry, it will d_move() it on top of ourse. The
+		 * return value will indicate this however, so in
+		 * those cases, we switch them around for the locking
+		 * code.
+		 *
+		 * NOTE: This dentry already has ->d_op set from
+		 * ocfs2_get_parent() and ocfs2_get_dentry()
+		 */
+		if (!IS_ERR_OR_NULL(ret))
+			dentry = ret;
+
+		status = ocfs2_dentry_attach_lock(dentry, inode,
+						  OCFS2_I(dir)->ip_blkno);
+		if (status) {
+			mlog_errno(status);
+			ret = ERR_PTR(status);
+			goto bail_unlock;
+		}
+	} else
+		ocfs2_dentry_attach_gen(dentry);
+
+bail_unlock:
+	/* Don't drop the cluster lock until *after* the d_add --
+	 * unlink on another node will message us to remove that
+	 * dentry under this lock so otherwise we can race this with
+	 * the downconvert thread and have a stale dentry. */
+	ocfs2_inode_unlock(dir, 0);
+
+bail:
+
+	trace_ocfs2_lookup_ret(ret);
+
+	return ret;
+}
+
+static struct inode *ocfs2_get_init_inode(struct inode *dir, umode_t mode)
+{
+	struct inode *inode;
+	int status;
+
+	inode = new_inode(dir->i_sb);
+	if (!inode) {
+		mlog(ML_ERROR, "new_inode failed!\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	/* populate as many fields early on as possible - many of
+	 * these are used by the support functions here and in
+	 * callers. */
+	if (S_ISDIR(mode))
+		set_nlink(inode, 2);
+	mode = mode_strip_sgid(&init_user_ns, dir, mode);
+	inode_init_owner(&init_user_ns, inode, dir, mode);
+	status = dquot_initialize(inode);
+	if (status)
+		return ERR_PTR(status);
+
+	return inode;
+}
+
+static void ocfs2_cleanup_add_entry_failure(struct ocfs2_super *osb,
+		struct dentry *dentry, struct inode *inode)
+{
+	struct ocfs2_dentry_lock *dl = dentry->d_fsdata;
+
+	ocfs2_simple_drop_lockres(osb, &dl->dl_lockres);
+	ocfs2_lock_res_free(&dl->dl_lockres);
+	BUG_ON(dl->dl_count != 1);
+	spin_lock(&dentry_attach_lock);
+	dentry->d_fsdata = NULL;
+	spin_unlock(&dentry_attach_lock);
+	kfree(dl);
+	iput(inode);
+}
+
+static int ocfs2_mknod(struct user_namespace *mnt_userns,
+		       struct inode *dir,
+		       struct dentry *dentry,
+		       umode_t mode,
+		       dev_t dev)
+{
+	int status = 0;
+	struct buffer_head *parent_fe_bh = NULL;
+	handle_t *handle = NULL;
+	struct ocfs2_super *osb;
+	struct ocfs2_dinode *dirfe;
+	struct ocfs2_dinode *fe = NULL;
+	struct buffer_head *new_fe_bh = NULL;
+	struct inode *inode = NULL;
+	struct ocfs2_alloc_context *inode_ac = NULL;
+	struct ocfs2_alloc_context *data_ac = NULL;
+	struct ocfs2_alloc_context *meta_ac = NULL;
+	int want_clusters = 0;
+	int want_meta = 0;
+	int xattr_credits = 0;
+	struct ocfs2_security_xattr_info si = {
+		.name = NULL,
+		.enable = 1,
+	};
+	int did_quota_inode = 0;
+	struct ocfs2_dir_lookup_result lookup = { NULL, };
+	sigset_t oldset;
+	int did_block_signals = 0;
+	struct ocfs2_dentry_lock *dl = NULL;
+
+	trace_ocfs2_mknod(dir, dentry, dentry->d_name.len, dentry->d_name.name,
+			  (unsigned long long)OCFS2_I(dir)->ip_blkno,
+			  (unsigned long)dev, mode);
+
+	status = dquot_initialize(dir);
+	if (status) {
+		mlog_errno(status);
+		return status;
+	}
+
+	/* get our super block */
+	osb = OCFS2_SB(dir->i_sb);
+
+	status = ocfs2_inode_lock(dir, &parent_fe_bh, 1);
+	if (status < 0) {
+		if (status != -ENOENT)
+			mlog_errno(status);
+		return status;
+	}
+
+	if (S_ISDIR(mode) && (dir->i_nlink >= ocfs2_link_max(osb))) {
+		status = -EMLINK;
+		goto leave;
+	}
+
+	dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data;
+	if (!ocfs2_read_links_count(dirfe)) {
+		/* can't make a file in a deleted directory. */
+		status = -ENOENT;
+		goto leave;
+	}
+
+	status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
+					   dentry->d_name.len);
+	if (status)
+		goto leave;
+
+	/* get a spot inside the dir. */
+	status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh,
+					      dentry->d_name.name,
+					      dentry->d_name.len, &lookup);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	/* reserve an inode spot */
+	status = ocfs2_reserve_new_inode(osb, &inode_ac);
+	if (status < 0) {
+		if (status != -ENOSPC)
+			mlog_errno(status);
+		goto leave;
+	}
+
+	inode = ocfs2_get_init_inode(dir, mode);
+	if (IS_ERR(inode)) {
+		status = PTR_ERR(inode);
+		inode = NULL;
+		mlog_errno(status);
+		goto leave;
+	}
+
+	/* get security xattr */
+	status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si);
+	if (status) {
+		if (status == -EOPNOTSUPP)
+			si.enable = 0;
+		else {
+			mlog_errno(status);
+			goto leave;
+		}
+	}
+
+	/* calculate meta data/clusters for setting security and acl xattr */
+	status = ocfs2_calc_xattr_init(dir, parent_fe_bh, mode,
+				       &si, &want_clusters,
+				       &xattr_credits, &want_meta);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	/* Reserve a cluster if creating an extent based directory. */
+	if (S_ISDIR(mode) && !ocfs2_supports_inline_data(osb)) {
+		want_clusters += 1;
+
+		/* Dir indexing requires extra space as well */
+		if (ocfs2_supports_indexed_dirs(osb))
+			want_meta++;
+	}
+
+	status = ocfs2_reserve_new_metadata_blocks(osb, want_meta, &meta_ac);
+	if (status < 0) {
+		if (status != -ENOSPC)
+			mlog_errno(status);
+		goto leave;
+	}
+
+	status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac);
+	if (status < 0) {
+		if (status != -ENOSPC)
+			mlog_errno(status);
+		goto leave;
+	}
+
+	handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb,
+							    S_ISDIR(mode),
+							    xattr_credits));
+	if (IS_ERR(handle)) {
+		status = PTR_ERR(handle);
+		handle = NULL;
+		mlog_errno(status);
+		goto leave;
+	}
+
+	/* Starting to change things, restart is no longer possible. */
+	ocfs2_block_signals(&oldset);
+	did_block_signals = 1;
+
+	status = dquot_alloc_inode(inode);
+	if (status)
+		goto leave;
+	did_quota_inode = 1;
+
+	/* do the real work now. */
+	status = ocfs2_mknod_locked(osb, dir, inode, dev,
+				    &new_fe_bh, parent_fe_bh, handle,
+				    inode_ac);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	fe = (struct ocfs2_dinode *) new_fe_bh->b_data;
+	if (S_ISDIR(mode)) {
+		status = ocfs2_fill_new_dir(osb, handle, dir, inode,
+					    new_fe_bh, data_ac, meta_ac);
+		if (status < 0) {
+			mlog_errno(status);
+			goto leave;
+		}
+
+		status = ocfs2_journal_access_di(handle, INODE_CACHE(dir),
+						 parent_fe_bh,
+						 OCFS2_JOURNAL_ACCESS_WRITE);
+		if (status < 0) {
+			mlog_errno(status);
+			goto leave;
+		}
+		ocfs2_add_links_count(dirfe, 1);
+		ocfs2_journal_dirty(handle, parent_fe_bh);
+		inc_nlink(dir);
+	}
+
+	status = ocfs2_init_acl(handle, inode, dir, new_fe_bh, parent_fe_bh,
+			 meta_ac, data_ac);
+
+	if (status < 0) {
+		mlog_errno(status);
+		goto roll_back;
+	}
+
+	if (si.enable) {
+		status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si,
+						 meta_ac, data_ac);
+		if (status < 0) {
+			mlog_errno(status);
+			goto roll_back;
+		}
+	}
+
+	/*
+	 * Do this before adding the entry to the directory. We add
+	 * also set d_op after success so that ->d_iput() will cleanup
+	 * the dentry lock even if ocfs2_add_entry() fails below.
+	 */
+	status = ocfs2_dentry_attach_lock(dentry, inode,
+					  OCFS2_I(dir)->ip_blkno);
+	if (status) {
+		mlog_errno(status);
+		goto roll_back;
+	}
+
+	dl = dentry->d_fsdata;
+
+	status = ocfs2_add_entry(handle, dentry, inode,
+				 OCFS2_I(inode)->ip_blkno, parent_fe_bh,
+				 &lookup);
+	if (status < 0) {
+		mlog_errno(status);
+		goto roll_back;
+	}
+
+	insert_inode_hash(inode);
+	d_instantiate(dentry, inode);
+	status = 0;
+
+roll_back:
+	if (status < 0 && S_ISDIR(mode)) {
+		ocfs2_add_links_count(dirfe, -1);
+		drop_nlink(dir);
+	}
+
+leave:
+	if (status < 0 && did_quota_inode)
+		dquot_free_inode(inode);
+	if (handle) {
+		if (status < 0 && fe)
+			ocfs2_set_links_count(fe, 0);
+		ocfs2_commit_trans(osb, handle);
+	}
+
+	ocfs2_inode_unlock(dir, 1);
+	if (did_block_signals)
+		ocfs2_unblock_signals(&oldset);
+
+	brelse(new_fe_bh);
+	brelse(parent_fe_bh);
+	kfree(si.value);
+
+	ocfs2_free_dir_lookup_result(&lookup);
+
+	if (inode_ac)
+		ocfs2_free_alloc_context(inode_ac);
+
+	if (data_ac)
+		ocfs2_free_alloc_context(data_ac);
+
+	if (meta_ac)
+		ocfs2_free_alloc_context(meta_ac);
+
+	/*
+	 * We should call iput after the i_rwsem of the bitmap been
+	 * unlocked in ocfs2_free_alloc_context, or the
+	 * ocfs2_delete_inode will mutex_lock again.
+	 */
+	if ((status < 0) && inode) {
+		if (dl)
+			ocfs2_cleanup_add_entry_failure(osb, dentry, inode);
+
+		OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR;
+		clear_nlink(inode);
+		iput(inode);
+	}
+
+	if (status)
+		mlog_errno(status);
+
+	return status;
+}
+
+static int __ocfs2_mknod_locked(struct inode *dir,
+				struct inode *inode,
+				dev_t dev,
+				struct buffer_head **new_fe_bh,
+				struct buffer_head *parent_fe_bh,
+				handle_t *handle,
+				struct ocfs2_alloc_context *inode_ac,
+				u64 fe_blkno, u64 suballoc_loc, u16 suballoc_bit)
+{
+	int status = 0;
+	struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
+	struct ocfs2_dinode *fe = NULL;
+	struct ocfs2_extent_list *fel;
+	u16 feat;
+	struct ocfs2_inode_info *oi = OCFS2_I(inode);
+	struct timespec64 ts;
+
+	*new_fe_bh = NULL;
+
+	/* populate as many fields early on as possible - many of
+	 * these are used by the support functions here and in
+	 * callers. */
+	inode->i_ino = ino_from_blkno(osb->sb, fe_blkno);
+	oi->ip_blkno = fe_blkno;
+	spin_lock(&osb->osb_lock);
+	inode->i_generation = osb->s_next_generation++;
+	spin_unlock(&osb->osb_lock);
+
+	*new_fe_bh = sb_getblk(osb->sb, fe_blkno);
+	if (!*new_fe_bh) {
+		status = -ENOMEM;
+		mlog_errno(status);
+		goto leave;
+	}
+	ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), *new_fe_bh);
+
+	status = ocfs2_journal_access_di(handle, INODE_CACHE(inode),
+					 *new_fe_bh,
+					 OCFS2_JOURNAL_ACCESS_CREATE);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	fe = (struct ocfs2_dinode *) (*new_fe_bh)->b_data;
+	memset(fe, 0, osb->sb->s_blocksize);
+
+	fe->i_generation = cpu_to_le32(inode->i_generation);
+	fe->i_fs_generation = cpu_to_le32(osb->fs_generation);
+	fe->i_blkno = cpu_to_le64(fe_blkno);
+	fe->i_suballoc_loc = cpu_to_le64(suballoc_loc);
+	fe->i_suballoc_bit = cpu_to_le16(suballoc_bit);
+	fe->i_suballoc_slot = cpu_to_le16(inode_ac->ac_alloc_slot);
+	fe->i_uid = cpu_to_le32(i_uid_read(inode));
+	fe->i_gid = cpu_to_le32(i_gid_read(inode));
+	fe->i_mode = cpu_to_le16(inode->i_mode);
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		fe->id1.dev1.i_rdev = cpu_to_le64(huge_encode_dev(dev));
+
+	ocfs2_set_links_count(fe, inode->i_nlink);
+
+	fe->i_last_eb_blk = 0;
+	strcpy(fe->i_signature, OCFS2_INODE_SIGNATURE);
+	fe->i_flags |= cpu_to_le32(OCFS2_VALID_FL);
+	ktime_get_real_ts64(&ts);
+	fe->i_atime = fe->i_ctime = fe->i_mtime =
+		cpu_to_le64(ts.tv_sec);
+	fe->i_mtime_nsec = fe->i_ctime_nsec = fe->i_atime_nsec =
+		cpu_to_le32(ts.tv_nsec);
+	fe->i_dtime = 0;
+
+	/*
+	 * If supported, directories start with inline data. If inline
+	 * isn't supported, but indexing is, we start them as indexed.
+	 */
+	feat = le16_to_cpu(fe->i_dyn_features);
+	if (S_ISDIR(inode->i_mode) && ocfs2_supports_inline_data(osb)) {
+		fe->i_dyn_features = cpu_to_le16(feat | OCFS2_INLINE_DATA_FL);
+
+		fe->id2.i_data.id_count = cpu_to_le16(
+				ocfs2_max_inline_data_with_xattr(osb->sb, fe));
+	} else {
+		fel = &fe->id2.i_list;
+		fel->l_tree_depth = 0;
+		fel->l_next_free_rec = 0;
+		fel->l_count = cpu_to_le16(ocfs2_extent_recs_per_inode(osb->sb));
+	}
+
+	ocfs2_journal_dirty(handle, *new_fe_bh);
+
+	ocfs2_populate_inode(inode, fe, 1);
+	ocfs2_ci_set_new(osb, INODE_CACHE(inode));
+	if (!ocfs2_mount_local(osb)) {
+		status = ocfs2_create_new_inode_locks(inode);
+		if (status < 0)
+			mlog_errno(status);
+	}
+
+	ocfs2_update_inode_fsync_trans(handle, inode, 1);
+
+leave:
+	if (status < 0) {
+		if (*new_fe_bh) {
+			brelse(*new_fe_bh);
+			*new_fe_bh = NULL;
+		}
+	}
+
+	if (status)
+		mlog_errno(status);
+	return status;
+}
+
+static int ocfs2_mknod_locked(struct ocfs2_super *osb,
+			      struct inode *dir,
+			      struct inode *inode,
+			      dev_t dev,
+			      struct buffer_head **new_fe_bh,
+			      struct buffer_head *parent_fe_bh,
+			      handle_t *handle,
+			      struct ocfs2_alloc_context *inode_ac)
+{
+	int status = 0;
+	u64 suballoc_loc, fe_blkno = 0;
+	u16 suballoc_bit;
+
+	*new_fe_bh = NULL;
+
+	status = ocfs2_claim_new_inode(handle, dir, parent_fe_bh,
+				       inode_ac, &suballoc_loc,
+				       &suballoc_bit, &fe_blkno);
+	if (status < 0) {
+		mlog_errno(status);
+		return status;
+	}
+
+	return __ocfs2_mknod_locked(dir, inode, dev, new_fe_bh,
+				    parent_fe_bh, handle, inode_ac,
+				    fe_blkno, suballoc_loc, suballoc_bit);
+}
+
+static int ocfs2_mkdir(struct user_namespace *mnt_userns,
+		       struct inode *dir,
+		       struct dentry *dentry,
+		       umode_t mode)
+{
+	int ret;
+
+	trace_ocfs2_mkdir(dir, dentry, dentry->d_name.len, dentry->d_name.name,
+			  OCFS2_I(dir)->ip_blkno, mode);
+	ret = ocfs2_mknod(&init_user_ns, dir, dentry, mode | S_IFDIR, 0);
+	if (ret)
+		mlog_errno(ret);
+
+	return ret;
+}
+
+static int ocfs2_create(struct user_namespace *mnt_userns,
+			struct inode *dir,
+			struct dentry *dentry,
+			umode_t mode,
+			bool excl)
+{
+	int ret;
+
+	trace_ocfs2_create(dir, dentry, dentry->d_name.len, dentry->d_name.name,
+			   (unsigned long long)OCFS2_I(dir)->ip_blkno, mode);
+	ret = ocfs2_mknod(&init_user_ns, dir, dentry, mode | S_IFREG, 0);
+	if (ret)
+		mlog_errno(ret);
+
+	return ret;
+}
+
+static int ocfs2_link(struct dentry *old_dentry,
+		      struct inode *dir,
+		      struct dentry *dentry)
+{
+	handle_t *handle;
+	struct inode *inode = d_inode(old_dentry);
+	struct inode *old_dir = d_inode(old_dentry->d_parent);
+	int err;
+	struct buffer_head *fe_bh = NULL;
+	struct buffer_head *old_dir_bh = NULL;
+	struct buffer_head *parent_fe_bh = NULL;
+	struct ocfs2_dinode *fe = NULL;
+	struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
+	struct ocfs2_dir_lookup_result lookup = { NULL, };
+	sigset_t oldset;
+	u64 old_de_ino;
+
+	trace_ocfs2_link((unsigned long long)OCFS2_I(inode)->ip_blkno,
+			 old_dentry->d_name.len, old_dentry->d_name.name,
+			 dentry->d_name.len, dentry->d_name.name);
+
+	if (S_ISDIR(inode->i_mode))
+		return -EPERM;
+
+	err = dquot_initialize(dir);
+	if (err) {
+		mlog_errno(err);
+		return err;
+	}
+
+	err = ocfs2_double_lock(osb, &old_dir_bh, old_dir,
+			&parent_fe_bh, dir, 0);
+	if (err < 0) {
+		if (err != -ENOENT)
+			mlog_errno(err);
+		return err;
+	}
+
+	/* make sure both dirs have bhs
+	 * get an extra ref on old_dir_bh if old==new */
+	if (!parent_fe_bh) {
+		if (old_dir_bh) {
+			parent_fe_bh = old_dir_bh;
+			get_bh(parent_fe_bh);
+		} else {
+			mlog(ML_ERROR, "%s: no old_dir_bh!\n", osb->uuid_str);
+			err = -EIO;
+			goto out;
+		}
+	}
+
+	if (!dir->i_nlink) {
+		err = -ENOENT;
+		goto out;
+	}
+
+	err = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name,
+			old_dentry->d_name.len, &old_de_ino);
+	if (err) {
+		err = -ENOENT;
+		goto out;
+	}
+
+	/*
+	 * Check whether another node removed the source inode while we
+	 * were in the vfs.
+	 */
+	if (old_de_ino != OCFS2_I(inode)->ip_blkno) {
+		err = -ENOENT;
+		goto out;
+	}
+
+	err = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
+					dentry->d_name.len);
+	if (err)
+		goto out;
+
+	err = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh,
+					   dentry->d_name.name,
+					   dentry->d_name.len, &lookup);
+	if (err < 0) {
+		mlog_errno(err);
+		goto out;
+	}
+
+	err = ocfs2_inode_lock(inode, &fe_bh, 1);
+	if (err < 0) {
+		if (err != -ENOENT)
+			mlog_errno(err);
+		goto out;
+	}
+
+	fe = (struct ocfs2_dinode *) fe_bh->b_data;
+	if (ocfs2_read_links_count(fe) >= ocfs2_link_max(osb)) {
+		err = -EMLINK;
+		goto out_unlock_inode;
+	}
+
+	handle = ocfs2_start_trans(osb, ocfs2_link_credits(osb->sb));
+	if (IS_ERR(handle)) {
+		err = PTR_ERR(handle);
+		handle = NULL;
+		mlog_errno(err);
+		goto out_unlock_inode;
+	}
+
+	/* Starting to change things, restart is no longer possible. */
+	ocfs2_block_signals(&oldset);
+
+	err = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh,
+				      OCFS2_JOURNAL_ACCESS_WRITE);
+	if (err < 0) {
+		mlog_errno(err);
+		goto out_commit;
+	}
+
+	inc_nlink(inode);
+	inode->i_ctime = current_time(inode);
+	ocfs2_set_links_count(fe, inode->i_nlink);
+	fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
+	fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
+	ocfs2_journal_dirty(handle, fe_bh);
+
+	err = ocfs2_add_entry(handle, dentry, inode,
+			      OCFS2_I(inode)->ip_blkno,
+			      parent_fe_bh, &lookup);
+	if (err) {
+		ocfs2_add_links_count(fe, -1);
+		drop_nlink(inode);
+		mlog_errno(err);
+		goto out_commit;
+	}
+
+	err = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno);
+	if (err) {
+		mlog_errno(err);
+		goto out_commit;
+	}
+
+	ihold(inode);
+	d_instantiate(dentry, inode);
+
+out_commit:
+	ocfs2_commit_trans(osb, handle);
+	ocfs2_unblock_signals(&oldset);
+out_unlock_inode:
+	ocfs2_inode_unlock(inode, 1);
+
+out:
+	ocfs2_double_unlock(old_dir, dir);
+
+	brelse(fe_bh);
+	brelse(parent_fe_bh);
+	brelse(old_dir_bh);
+
+	ocfs2_free_dir_lookup_result(&lookup);
+
+	if (err)
+		mlog_errno(err);
+
+	return err;
+}
+
+/*
+ * Takes and drops an exclusive lock on the given dentry. This will
+ * force other nodes to drop it.
+ */
+static int ocfs2_remote_dentry_delete(struct dentry *dentry)
+{
+	int ret;
+
+	ret = ocfs2_dentry_lock(dentry, 1);
+	if (ret)
+		mlog_errno(ret);
+	else
+		ocfs2_dentry_unlock(dentry, 1);
+
+	return ret;
+}
+
+static inline int ocfs2_inode_is_unlinkable(struct inode *inode)
+{
+	if (S_ISDIR(inode->i_mode)) {
+		if (inode->i_nlink == 2)
+			return 1;
+		return 0;
+	}
+
+	if (inode->i_nlink == 1)
+		return 1;
+	return 0;
+}
+
+static int ocfs2_unlink(struct inode *dir,
+			struct dentry *dentry)
+{
+	int status;
+	int child_locked = 0;
+	bool is_unlinkable = false;
+	struct inode *inode = d_inode(dentry);
+	struct inode *orphan_dir = NULL;
+	struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
+	u64 blkno;
+	struct ocfs2_dinode *fe = NULL;
+	struct buffer_head *fe_bh = NULL;
+	struct buffer_head *parent_node_bh = NULL;
+	handle_t *handle = NULL;
+	char orphan_name[OCFS2_ORPHAN_NAMELEN + 1];
+	struct ocfs2_dir_lookup_result lookup = { NULL, };
+	struct ocfs2_dir_lookup_result orphan_insert = { NULL, };
+
+	trace_ocfs2_unlink(dir, dentry, dentry->d_name.len,
+			   dentry->d_name.name,
+			   (unsigned long long)OCFS2_I(dir)->ip_blkno,
+			   (unsigned long long)OCFS2_I(inode)->ip_blkno);
+
+	status = dquot_initialize(dir);
+	if (status) {
+		mlog_errno(status);
+		return status;
+	}
+
+	BUG_ON(d_inode(dentry->d_parent) != dir);
+
+	if (inode == osb->root_inode)
+		return -EPERM;
+
+	status = ocfs2_inode_lock_nested(dir, &parent_node_bh, 1,
+					 OI_LS_PARENT);
+	if (status < 0) {
+		if (status != -ENOENT)
+			mlog_errno(status);
+		return status;
+	}
+
+	status = ocfs2_find_files_on_disk(dentry->d_name.name,
+					  dentry->d_name.len, &blkno, dir,
+					  &lookup);
+	if (status < 0) {
+		if (status != -ENOENT)
+			mlog_errno(status);
+		goto leave;
+	}
+
+	if (OCFS2_I(inode)->ip_blkno != blkno) {
+		status = -ENOENT;
+
+		trace_ocfs2_unlink_noent(
+				(unsigned long long)OCFS2_I(inode)->ip_blkno,
+				(unsigned long long)blkno,
+				OCFS2_I(inode)->ip_flags);
+		goto leave;
+	}
+
+	status = ocfs2_inode_lock(inode, &fe_bh, 1);
+	if (status < 0) {
+		if (status != -ENOENT)
+			mlog_errno(status);
+		goto leave;
+	}
+	child_locked = 1;
+
+	if (S_ISDIR(inode->i_mode)) {
+		if (inode->i_nlink != 2 || !ocfs2_empty_dir(inode)) {
+			status = -ENOTEMPTY;
+			goto leave;
+		}
+	}
+
+	status = ocfs2_remote_dentry_delete(dentry);
+	if (status < 0) {
+		/* This remote delete should succeed under all normal
+		 * circumstances. */
+		mlog_errno(status);
+		goto leave;
+	}
+
+	if (ocfs2_inode_is_unlinkable(inode)) {
+		status = ocfs2_prepare_orphan_dir(osb, &orphan_dir,
+						  OCFS2_I(inode)->ip_blkno,
+						  orphan_name, &orphan_insert,
+						  false);
+		if (status < 0) {
+			mlog_errno(status);
+			goto leave;
+		}
+		is_unlinkable = true;
+	}
+
+	handle = ocfs2_start_trans(osb, ocfs2_unlink_credits(osb->sb));
+	if (IS_ERR(handle)) {
+		status = PTR_ERR(handle);
+		handle = NULL;
+		mlog_errno(status);
+		goto leave;
+	}
+
+	status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh,
+					 OCFS2_JOURNAL_ACCESS_WRITE);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	fe = (struct ocfs2_dinode *) fe_bh->b_data;
+
+	/* delete the name from the parent dir */
+	status = ocfs2_delete_entry(handle, dir, &lookup);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	if (S_ISDIR(inode->i_mode))
+		drop_nlink(inode);
+	drop_nlink(inode);
+	ocfs2_set_links_count(fe, inode->i_nlink);
+	ocfs2_journal_dirty(handle, fe_bh);
+
+	dir->i_ctime = dir->i_mtime = current_time(dir);
+	if (S_ISDIR(inode->i_mode))
+		drop_nlink(dir);
+
+	status = ocfs2_mark_inode_dirty(handle, dir, parent_node_bh);
+	if (status < 0) {
+		mlog_errno(status);
+		if (S_ISDIR(inode->i_mode))
+			inc_nlink(dir);
+		goto leave;
+	}
+
+	if (is_unlinkable) {
+		status = ocfs2_orphan_add(osb, handle, inode, fe_bh,
+				orphan_name, &orphan_insert, orphan_dir, false);
+		if (status < 0)
+			mlog_errno(status);
+	}
+
+leave:
+	if (handle)
+		ocfs2_commit_trans(osb, handle);
+
+	if (orphan_dir) {
+		/* This was locked for us in ocfs2_prepare_orphan_dir() */
+		ocfs2_inode_unlock(orphan_dir, 1);
+		inode_unlock(orphan_dir);
+		iput(orphan_dir);
+	}
+
+	if (child_locked)
+		ocfs2_inode_unlock(inode, 1);
+
+	ocfs2_inode_unlock(dir, 1);
+
+	brelse(fe_bh);
+	brelse(parent_node_bh);
+
+	ocfs2_free_dir_lookup_result(&orphan_insert);
+	ocfs2_free_dir_lookup_result(&lookup);
+
+	if (status && (status != -ENOTEMPTY) && (status != -ENOENT))
+		mlog_errno(status);
+
+	return status;
+}
+
+static int ocfs2_check_if_ancestor(struct ocfs2_super *osb,
+		u64 src_inode_no, u64 dest_inode_no)
+{
+	int ret = 0, i = 0;
+	u64 parent_inode_no = 0;
+	u64 child_inode_no = src_inode_no;
+	struct inode *child_inode;
+
+#define MAX_LOOKUP_TIMES 32
+	while (1) {
+		child_inode = ocfs2_iget(osb, child_inode_no, 0, 0);
+		if (IS_ERR(child_inode)) {
+			ret = PTR_ERR(child_inode);
+			break;
+		}
+
+		ret = ocfs2_inode_lock(child_inode, NULL, 0);
+		if (ret < 0) {
+			iput(child_inode);
+			if (ret != -ENOENT)
+				mlog_errno(ret);
+			break;
+		}
+
+		ret = ocfs2_lookup_ino_from_name(child_inode, "..", 2,
+				&parent_inode_no);
+		ocfs2_inode_unlock(child_inode, 0);
+		iput(child_inode);
+		if (ret < 0) {
+			ret = -ENOENT;
+			break;
+		}
+
+		if (parent_inode_no == dest_inode_no) {
+			ret = 1;
+			break;
+		}
+
+		if (parent_inode_no == osb->root_inode->i_ino) {
+			ret = 0;
+			break;
+		}
+
+		child_inode_no = parent_inode_no;
+
+		if (++i >= MAX_LOOKUP_TIMES) {
+			mlog_ratelimited(ML_NOTICE, "max lookup times reached, "
+					"filesystem may have nested directories, "
+					"src inode: %llu, dest inode: %llu.\n",
+					(unsigned long long)src_inode_no,
+					(unsigned long long)dest_inode_no);
+			ret = 0;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+/*
+ * The only place this should be used is rename and link!
+ * if they have the same id, then the 1st one is the only one locked.
+ */
+static int ocfs2_double_lock(struct ocfs2_super *osb,
+			     struct buffer_head **bh1,
+			     struct inode *inode1,
+			     struct buffer_head **bh2,
+			     struct inode *inode2,
+			     int rename)
+{
+	int status;
+	int inode1_is_ancestor, inode2_is_ancestor;
+	struct ocfs2_inode_info *oi1 = OCFS2_I(inode1);
+	struct ocfs2_inode_info *oi2 = OCFS2_I(inode2);
+
+	trace_ocfs2_double_lock((unsigned long long)oi1->ip_blkno,
+				(unsigned long long)oi2->ip_blkno);
+
+	if (*bh1)
+		*bh1 = NULL;
+	if (*bh2)
+		*bh2 = NULL;
+
+	/* we always want to lock the one with the lower lockid first.
+	 * and if they are nested, we lock ancestor first */
+	if (oi1->ip_blkno != oi2->ip_blkno) {
+		inode1_is_ancestor = ocfs2_check_if_ancestor(osb, oi2->ip_blkno,
+				oi1->ip_blkno);
+		if (inode1_is_ancestor < 0) {
+			status = inode1_is_ancestor;
+			goto bail;
+		}
+
+		inode2_is_ancestor = ocfs2_check_if_ancestor(osb, oi1->ip_blkno,
+				oi2->ip_blkno);
+		if (inode2_is_ancestor < 0) {
+			status = inode2_is_ancestor;
+			goto bail;
+		}
+
+		if ((inode1_is_ancestor == 1) ||
+				(oi1->ip_blkno < oi2->ip_blkno &&
+				inode2_is_ancestor == 0)) {
+			/* switch id1 and id2 around */
+			swap(bh2, bh1);
+			swap(inode2, inode1);
+		}
+		/* lock id2 */
+		status = ocfs2_inode_lock_nested(inode2, bh2, 1,
+				rename == 1 ? OI_LS_RENAME1 : OI_LS_PARENT);
+		if (status < 0) {
+			if (status != -ENOENT)
+				mlog_errno(status);
+			goto bail;
+		}
+	}
+
+	/* lock id1 */
+	status = ocfs2_inode_lock_nested(inode1, bh1, 1,
+			rename == 1 ?  OI_LS_RENAME2 : OI_LS_PARENT);
+	if (status < 0) {
+		/*
+		 * An error return must mean that no cluster locks
+		 * were held on function exit.
+		 */
+		if (oi1->ip_blkno != oi2->ip_blkno) {
+			ocfs2_inode_unlock(inode2, 1);
+			brelse(*bh2);
+			*bh2 = NULL;
+		}
+
+		if (status != -ENOENT)
+			mlog_errno(status);
+	}
+
+	trace_ocfs2_double_lock_end(
+			(unsigned long long)oi1->ip_blkno,
+			(unsigned long long)oi2->ip_blkno);
+
+bail:
+	if (status)
+		mlog_errno(status);
+	return status;
+}
+
+static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2)
+{
+	ocfs2_inode_unlock(inode1, 1);
+
+	if (inode1 != inode2)
+		ocfs2_inode_unlock(inode2, 1);
+}
+
+static int ocfs2_rename(struct user_namespace *mnt_userns,
+			struct inode *old_dir,
+			struct dentry *old_dentry,
+			struct inode *new_dir,
+			struct dentry *new_dentry,
+			unsigned int flags)
+{
+	int status = 0, rename_lock = 0, parents_locked = 0, target_exists = 0;
+	int old_child_locked = 0, new_child_locked = 0, update_dot_dot = 0;
+	struct inode *old_inode = d_inode(old_dentry);
+	struct inode *new_inode = d_inode(new_dentry);
+	struct inode *orphan_dir = NULL;
+	struct ocfs2_dinode *newfe = NULL;
+	char orphan_name[OCFS2_ORPHAN_NAMELEN + 1];
+	struct buffer_head *newfe_bh = NULL;
+	struct buffer_head *old_inode_bh = NULL;
+	struct ocfs2_super *osb = NULL;
+	u64 newfe_blkno, old_de_ino;
+	handle_t *handle = NULL;
+	struct buffer_head *old_dir_bh = NULL;
+	struct buffer_head *new_dir_bh = NULL;
+	u32 old_dir_nlink = old_dir->i_nlink;
+	struct ocfs2_dinode *old_di;
+	struct ocfs2_dir_lookup_result old_inode_dot_dot_res = { NULL, };
+	struct ocfs2_dir_lookup_result target_lookup_res = { NULL, };
+	struct ocfs2_dir_lookup_result old_entry_lookup = { NULL, };
+	struct ocfs2_dir_lookup_result orphan_insert = { NULL, };
+	struct ocfs2_dir_lookup_result target_insert = { NULL, };
+	bool should_add_orphan = false;
+
+	if (flags)
+		return -EINVAL;
+
+	/* At some point it might be nice to break this function up a
+	 * bit. */
+
+	trace_ocfs2_rename(old_dir, old_dentry, new_dir, new_dentry,
+			   old_dentry->d_name.len, old_dentry->d_name.name,
+			   new_dentry->d_name.len, new_dentry->d_name.name);
+
+	status = dquot_initialize(old_dir);
+	if (status) {
+		mlog_errno(status);
+		goto bail;
+	}
+	status = dquot_initialize(new_dir);
+	if (status) {
+		mlog_errno(status);
+		goto bail;
+	}
+
+	osb = OCFS2_SB(old_dir->i_sb);
+
+	if (new_inode) {
+		if (!igrab(new_inode))
+			BUG();
+	}
+
+	/* Assume a directory hierarchy thusly:
+	 * a/b/c
+	 * a/d
+	 * a,b,c, and d are all directories.
+	 *
+	 * from cwd of 'a' on both nodes:
+	 * node1: mv b/c d
+	 * node2: mv d   b/c
+	 *
+	 * And that's why, just like the VFS, we need a file system
+	 * rename lock. */
+	if (old_dir != new_dir && S_ISDIR(old_inode->i_mode)) {
+		status = ocfs2_rename_lock(osb);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
+		rename_lock = 1;
+
+		/* here we cannot guarantee the inodes haven't just been
+		 * changed, so check if they are nested again */
+		status = ocfs2_check_if_ancestor(osb, new_dir->i_ino,
+				old_inode->i_ino);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		} else if (status == 1) {
+			status = -EPERM;
+			trace_ocfs2_rename_not_permitted(
+					(unsigned long long)old_inode->i_ino,
+					(unsigned long long)new_dir->i_ino);
+			goto bail;
+		}
+	}
+
+	/* if old and new are the same, this'll just do one lock. */
+	status = ocfs2_double_lock(osb, &old_dir_bh, old_dir,
+				   &new_dir_bh, new_dir, 1);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail;
+	}
+	parents_locked = 1;
+
+	if (!new_dir->i_nlink) {
+		status = -EACCES;
+		goto bail;
+	}
+
+	/* make sure both dirs have bhs
+	 * get an extra ref on old_dir_bh if old==new */
+	if (!new_dir_bh) {
+		if (old_dir_bh) {
+			new_dir_bh = old_dir_bh;
+			get_bh(new_dir_bh);
+		} else {
+			mlog(ML_ERROR, "no old_dir_bh!\n");
+			status = -EIO;
+			goto bail;
+		}
+	}
+
+	/*
+	 * Aside from allowing a meta data update, the locking here
+	 * also ensures that the downconvert thread on other nodes
+	 * won't have to concurrently downconvert the inode and the
+	 * dentry locks.
+	 */
+	status = ocfs2_inode_lock_nested(old_inode, &old_inode_bh, 1,
+					 OI_LS_PARENT);
+	if (status < 0) {
+		if (status != -ENOENT)
+			mlog_errno(status);
+		goto bail;
+	}
+	old_child_locked = 1;
+
+	status = ocfs2_remote_dentry_delete(old_dentry);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail;
+	}
+
+	if (S_ISDIR(old_inode->i_mode)) {
+		u64 old_inode_parent;
+
+		update_dot_dot = 1;
+		status = ocfs2_find_files_on_disk("..", 2, &old_inode_parent,
+						  old_inode,
+						  &old_inode_dot_dot_res);
+		if (status) {
+			status = -EIO;
+			goto bail;
+		}
+
+		if (old_inode_parent != OCFS2_I(old_dir)->ip_blkno) {
+			status = -EIO;
+			goto bail;
+		}
+
+		if (!new_inode && new_dir != old_dir &&
+		    new_dir->i_nlink >= ocfs2_link_max(osb)) {
+			status = -EMLINK;
+			goto bail;
+		}
+	}
+
+	status = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name,
+					    old_dentry->d_name.len,
+					    &old_de_ino);
+	if (status) {
+		status = -ENOENT;
+		goto bail;
+	}
+
+	/*
+	 *  Check for inode number is _not_ due to possible IO errors.
+	 *  We might rmdir the source, keep it as pwd of some process
+	 *  and merrily kill the link to whatever was created under the
+	 *  same name. Goodbye sticky bit ;-<
+	 */
+	if (old_de_ino != OCFS2_I(old_inode)->ip_blkno) {
+		status = -ENOENT;
+		goto bail;
+	}
+
+	/* check if the target already exists (in which case we need
+	 * to delete it */
+	status = ocfs2_find_files_on_disk(new_dentry->d_name.name,
+					  new_dentry->d_name.len,
+					  &newfe_blkno, new_dir,
+					  &target_lookup_res);
+	/* The only error we allow here is -ENOENT because the new
+	 * file not existing is perfectly valid. */
+	if ((status < 0) && (status != -ENOENT)) {
+		/* If we cannot find the file specified we should just */
+		/* return the error... */
+		mlog_errno(status);
+		goto bail;
+	}
+	if (status == 0)
+		target_exists = 1;
+
+	if (!target_exists && new_inode) {
+		/*
+		 * Target was unlinked by another node while we were
+		 * waiting to get to ocfs2_rename(). There isn't
+		 * anything we can do here to help the situation, so
+		 * bubble up the appropriate error.
+		 */
+		status = -ENOENT;
+		goto bail;
+	}
+
+	/* In case we need to overwrite an existing file, we blow it
+	 * away first */
+	if (target_exists) {
+		/* VFS didn't think there existed an inode here, but
+		 * someone else in the cluster must have raced our
+		 * rename to create one. Today we error cleanly, in
+		 * the future we should consider calling iget to build
+		 * a new struct inode for this entry. */
+		if (!new_inode) {
+			status = -EACCES;
+
+			trace_ocfs2_rename_target_exists(new_dentry->d_name.len,
+						new_dentry->d_name.name);
+			goto bail;
+		}
+
+		if (OCFS2_I(new_inode)->ip_blkno != newfe_blkno) {
+			status = -EACCES;
+
+			trace_ocfs2_rename_disagree(
+			     (unsigned long long)OCFS2_I(new_inode)->ip_blkno,
+			     (unsigned long long)newfe_blkno,
+			     OCFS2_I(new_inode)->ip_flags);
+			goto bail;
+		}
+
+		status = ocfs2_inode_lock(new_inode, &newfe_bh, 1);
+		if (status < 0) {
+			if (status != -ENOENT)
+				mlog_errno(status);
+			goto bail;
+		}
+		new_child_locked = 1;
+
+		status = ocfs2_remote_dentry_delete(new_dentry);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
+
+		newfe = (struct ocfs2_dinode *) newfe_bh->b_data;
+
+		trace_ocfs2_rename_over_existing(
+		     (unsigned long long)newfe_blkno, newfe_bh, newfe_bh ?
+		     (unsigned long long)newfe_bh->b_blocknr : 0ULL);
+
+		if (S_ISDIR(new_inode->i_mode) || (new_inode->i_nlink == 1)) {
+			status = ocfs2_prepare_orphan_dir(osb, &orphan_dir,
+						OCFS2_I(new_inode)->ip_blkno,
+						orphan_name, &orphan_insert,
+						false);
+			if (status < 0) {
+				mlog_errno(status);
+				goto bail;
+			}
+			should_add_orphan = true;
+		}
+	} else {
+		BUG_ON(d_inode(new_dentry->d_parent) != new_dir);
+
+		status = ocfs2_check_dir_for_entry(new_dir,
+						   new_dentry->d_name.name,
+						   new_dentry->d_name.len);
+		if (status)
+			goto bail;
+
+		status = ocfs2_prepare_dir_for_insert(osb, new_dir, new_dir_bh,
+						      new_dentry->d_name.name,
+						      new_dentry->d_name.len,
+						      &target_insert);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
+	}
+
+	handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb));
+	if (IS_ERR(handle)) {
+		status = PTR_ERR(handle);
+		handle = NULL;
+		mlog_errno(status);
+		goto bail;
+	}
+
+	if (target_exists) {
+		if (S_ISDIR(new_inode->i_mode)) {
+			if (new_inode->i_nlink != 2 ||
+			    !ocfs2_empty_dir(new_inode)) {
+				status = -ENOTEMPTY;
+				goto bail;
+			}
+		}
+		status = ocfs2_journal_access_di(handle, INODE_CACHE(new_inode),
+						 newfe_bh,
+						 OCFS2_JOURNAL_ACCESS_WRITE);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
+
+		/* change the dirent to point to the correct inode */
+		status = ocfs2_update_entry(new_dir, handle, &target_lookup_res,
+					    old_inode);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
+		inode_inc_iversion(new_dir);
+
+		if (S_ISDIR(new_inode->i_mode))
+			ocfs2_set_links_count(newfe, 0);
+		else
+			ocfs2_add_links_count(newfe, -1);
+		ocfs2_journal_dirty(handle, newfe_bh);
+		if (should_add_orphan) {
+			status = ocfs2_orphan_add(osb, handle, new_inode,
+					newfe_bh, orphan_name,
+					&orphan_insert, orphan_dir, false);
+			if (status < 0) {
+				mlog_errno(status);
+				goto bail;
+			}
+		}
+	} else {
+		/* if the name was not found in new_dir, add it now */
+		status = ocfs2_add_entry(handle, new_dentry, old_inode,
+					 OCFS2_I(old_inode)->ip_blkno,
+					 new_dir_bh, &target_insert);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
+	}
+
+	old_inode->i_ctime = current_time(old_inode);
+	mark_inode_dirty(old_inode);
+
+	status = ocfs2_journal_access_di(handle, INODE_CACHE(old_inode),
+					 old_inode_bh,
+					 OCFS2_JOURNAL_ACCESS_WRITE);
+	if (status >= 0) {
+		old_di = (struct ocfs2_dinode *) old_inode_bh->b_data;
+
+		old_di->i_ctime = cpu_to_le64(old_inode->i_ctime.tv_sec);
+		old_di->i_ctime_nsec = cpu_to_le32(old_inode->i_ctime.tv_nsec);
+		ocfs2_journal_dirty(handle, old_inode_bh);
+	} else
+		mlog_errno(status);
+
+	/*
+	 * Now that the name has been added to new_dir, remove the old name.
+	 *
+	 * We don't keep any directory entry context around until now
+	 * because the insert might have changed the type of directory
+	 * we're dealing with.
+	 */
+	status = ocfs2_find_entry(old_dentry->d_name.name,
+				  old_dentry->d_name.len, old_dir,
+				  &old_entry_lookup);
+	if (status) {
+		if (!is_journal_aborted(osb->journal->j_journal)) {
+			ocfs2_error(osb->sb, "new entry %.*s is added, but old entry %.*s "
+					"is not deleted.",
+					new_dentry->d_name.len, new_dentry->d_name.name,
+					old_dentry->d_name.len, old_dentry->d_name.name);
+		}
+		goto bail;
+	}
+
+	status = ocfs2_delete_entry(handle, old_dir, &old_entry_lookup);
+	if (status < 0) {
+		mlog_errno(status);
+		if (!is_journal_aborted(osb->journal->j_journal)) {
+			ocfs2_error(osb->sb, "new entry %.*s is added, but old entry %.*s "
+					"is not deleted.",
+					new_dentry->d_name.len, new_dentry->d_name.name,
+					old_dentry->d_name.len, old_dentry->d_name.name);
+		}
+		goto bail;
+	}
+
+	if (new_inode) {
+		drop_nlink(new_inode);
+		new_inode->i_ctime = current_time(new_inode);
+	}
+	old_dir->i_ctime = old_dir->i_mtime = current_time(old_dir);
+
+	if (update_dot_dot) {
+		status = ocfs2_update_entry(old_inode, handle,
+					    &old_inode_dot_dot_res, new_dir);
+		drop_nlink(old_dir);
+		if (new_inode) {
+			drop_nlink(new_inode);
+		} else {
+			inc_nlink(new_dir);
+			mark_inode_dirty(new_dir);
+		}
+	}
+	mark_inode_dirty(old_dir);
+	ocfs2_mark_inode_dirty(handle, old_dir, old_dir_bh);
+	if (new_inode) {
+		mark_inode_dirty(new_inode);
+		ocfs2_mark_inode_dirty(handle, new_inode, newfe_bh);
+	}
+
+	if (old_dir != new_dir) {
+		/* Keep the same times on both directories.*/
+		new_dir->i_ctime = new_dir->i_mtime = old_dir->i_ctime;
+
+		/*
+		 * This will also pick up the i_nlink change from the
+		 * block above.
+		 */
+		ocfs2_mark_inode_dirty(handle, new_dir, new_dir_bh);
+	}
+
+	if (old_dir_nlink != old_dir->i_nlink) {
+		if (!old_dir_bh) {
+			mlog(ML_ERROR, "need to change nlink for old dir "
+			     "%llu from %d to %d but bh is NULL!\n",
+			     (unsigned long long)OCFS2_I(old_dir)->ip_blkno,
+			     (int)old_dir_nlink, old_dir->i_nlink);
+		} else {
+			struct ocfs2_dinode *fe;
+			status = ocfs2_journal_access_di(handle,
+							 INODE_CACHE(old_dir),
+							 old_dir_bh,
+							 OCFS2_JOURNAL_ACCESS_WRITE);
+			fe = (struct ocfs2_dinode *) old_dir_bh->b_data;
+			ocfs2_set_links_count(fe, old_dir->i_nlink);
+			ocfs2_journal_dirty(handle, old_dir_bh);
+		}
+	}
+	ocfs2_dentry_move(old_dentry, new_dentry, old_dir, new_dir);
+	status = 0;
+bail:
+	if (handle)
+		ocfs2_commit_trans(osb, handle);
+
+	if (orphan_dir) {
+		/* This was locked for us in ocfs2_prepare_orphan_dir() */
+		ocfs2_inode_unlock(orphan_dir, 1);
+		inode_unlock(orphan_dir);
+		iput(orphan_dir);
+	}
+
+	if (new_child_locked)
+		ocfs2_inode_unlock(new_inode, 1);
+
+	if (old_child_locked)
+		ocfs2_inode_unlock(old_inode, 1);
+
+	if (parents_locked)
+		ocfs2_double_unlock(old_dir, new_dir);
+
+	if (rename_lock)
+		ocfs2_rename_unlock(osb);
+
+	if (new_inode)
+		sync_mapping_buffers(old_inode->i_mapping);
+
+	iput(new_inode);
+
+	ocfs2_free_dir_lookup_result(&target_lookup_res);
+	ocfs2_free_dir_lookup_result(&old_entry_lookup);
+	ocfs2_free_dir_lookup_result(&old_inode_dot_dot_res);
+	ocfs2_free_dir_lookup_result(&orphan_insert);
+	ocfs2_free_dir_lookup_result(&target_insert);
+
+	brelse(newfe_bh);
+	brelse(old_inode_bh);
+	brelse(old_dir_bh);
+	brelse(new_dir_bh);
+
+	if (status)
+		mlog_errno(status);
+
+	return status;
+}
+
+/*
+ * we expect i_size = strlen(symname). Copy symname into the file
+ * data, including the null terminator.
+ */
+static int ocfs2_create_symlink_data(struct ocfs2_super *osb,
+				     handle_t *handle,
+				     struct inode *inode,
+				     const char *symname)
+{
+	struct buffer_head **bhs = NULL;
+	const char *c;
+	struct super_block *sb = osb->sb;
+	u64 p_blkno, p_blocks;
+	int virtual, blocks, status, i, bytes_left;
+
+	bytes_left = i_size_read(inode) + 1;
+	/* we can't trust i_blocks because we're actually going to
+	 * write i_size + 1 bytes. */
+	blocks = (bytes_left + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
+
+	trace_ocfs2_create_symlink_data((unsigned long long)inode->i_blocks,
+					i_size_read(inode), blocks);
+
+	/* Sanity check -- make sure we're going to fit. */
+	if (bytes_left >
+	    ocfs2_clusters_to_bytes(sb, OCFS2_I(inode)->ip_clusters)) {
+		status = -EIO;
+		mlog_errno(status);
+		goto bail;
+	}
+
+	bhs = kcalloc(blocks, sizeof(struct buffer_head *), GFP_KERNEL);
+	if (!bhs) {
+		status = -ENOMEM;
+		mlog_errno(status);
+		goto bail;
+	}
+
+	status = ocfs2_extent_map_get_blocks(inode, 0, &p_blkno, &p_blocks,
+					     NULL);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail;
+	}
+
+	/* links can never be larger than one cluster so we know this
+	 * is all going to be contiguous, but do a sanity check
+	 * anyway. */
+	if ((p_blocks << sb->s_blocksize_bits) < bytes_left) {
+		status = -EIO;
+		mlog_errno(status);
+		goto bail;
+	}
+
+	virtual = 0;
+	while(bytes_left > 0) {
+		c = &symname[virtual * sb->s_blocksize];
+
+		bhs[virtual] = sb_getblk(sb, p_blkno);
+		if (!bhs[virtual]) {
+			status = -ENOMEM;
+			mlog_errno(status);
+			goto bail;
+		}
+		ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode),
+					      bhs[virtual]);
+
+		status = ocfs2_journal_access(handle, INODE_CACHE(inode),
+					      bhs[virtual],
+					      OCFS2_JOURNAL_ACCESS_CREATE);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
+
+		memset(bhs[virtual]->b_data, 0, sb->s_blocksize);
+
+		memcpy(bhs[virtual]->b_data, c,
+		       (bytes_left > sb->s_blocksize) ? sb->s_blocksize :
+		       bytes_left);
+
+		ocfs2_journal_dirty(handle, bhs[virtual]);
+
+		virtual++;
+		p_blkno++;
+		bytes_left -= sb->s_blocksize;
+	}
+
+	status = 0;
+bail:
+
+	if (bhs) {
+		for(i = 0; i < blocks; i++)
+			brelse(bhs[i]);
+		kfree(bhs);
+	}
+
+	if (status)
+		mlog_errno(status);
+	return status;
+}
+
+static int ocfs2_symlink(struct user_namespace *mnt_userns,
+			 struct inode *dir,
+			 struct dentry *dentry,
+			 const char *symname)
+{
+	int status, l, credits;
+	u64 newsize;
+	struct ocfs2_super *osb = NULL;
+	struct inode *inode = NULL;
+	struct super_block *sb;
+	struct buffer_head *new_fe_bh = NULL;
+	struct buffer_head *parent_fe_bh = NULL;
+	struct ocfs2_dinode *fe = NULL;
+	struct ocfs2_dinode *dirfe;
+	handle_t *handle = NULL;
+	struct ocfs2_alloc_context *inode_ac = NULL;
+	struct ocfs2_alloc_context *data_ac = NULL;
+	struct ocfs2_alloc_context *xattr_ac = NULL;
+	int want_clusters = 0;
+	int xattr_credits = 0;
+	struct ocfs2_security_xattr_info si = {
+		.name = NULL,
+		.enable = 1,
+	};
+	int did_quota = 0, did_quota_inode = 0;
+	struct ocfs2_dir_lookup_result lookup = { NULL, };
+	sigset_t oldset;
+	int did_block_signals = 0;
+	struct ocfs2_dentry_lock *dl = NULL;
+
+	trace_ocfs2_symlink_begin(dir, dentry, symname,
+				  dentry->d_name.len, dentry->d_name.name);
+
+	status = dquot_initialize(dir);
+	if (status) {
+		mlog_errno(status);
+		goto bail;
+	}
+
+	sb = dir->i_sb;
+	osb = OCFS2_SB(sb);
+
+	l = strlen(symname) + 1;
+
+	credits = ocfs2_calc_symlink_credits(sb);
+
+	/* lock the parent directory */
+	status = ocfs2_inode_lock(dir, &parent_fe_bh, 1);
+	if (status < 0) {
+		if (status != -ENOENT)
+			mlog_errno(status);
+		return status;
+	}
+
+	dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data;
+	if (!ocfs2_read_links_count(dirfe)) {
+		/* can't make a file in a deleted directory. */
+		status = -ENOENT;
+		goto bail;
+	}
+
+	status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
+					   dentry->d_name.len);
+	if (status)
+		goto bail;
+
+	status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh,
+					      dentry->d_name.name,
+					      dentry->d_name.len, &lookup);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail;
+	}
+
+	status = ocfs2_reserve_new_inode(osb, &inode_ac);
+	if (status < 0) {
+		if (status != -ENOSPC)
+			mlog_errno(status);
+		goto bail;
+	}
+
+	inode = ocfs2_get_init_inode(dir, S_IFLNK | S_IRWXUGO);
+	if (IS_ERR(inode)) {
+		status = PTR_ERR(inode);
+		inode = NULL;
+		mlog_errno(status);
+		goto bail;
+	}
+
+	/* get security xattr */
+	status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si);
+	if (status) {
+		if (status == -EOPNOTSUPP)
+			si.enable = 0;
+		else {
+			mlog_errno(status);
+			goto bail;
+		}
+	}
+
+	/* calculate meta data/clusters for setting security xattr */
+	if (si.enable) {
+		status = ocfs2_calc_security_init(dir, &si, &want_clusters,
+						  &xattr_credits, &xattr_ac);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
+	}
+
+	/* don't reserve bitmap space for fast symlinks. */
+	if (l > ocfs2_fast_symlink_chars(sb))
+		want_clusters += 1;
+
+	status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac);
+	if (status < 0) {
+		if (status != -ENOSPC)
+			mlog_errno(status);
+		goto bail;
+	}
+
+	handle = ocfs2_start_trans(osb, credits + xattr_credits);
+	if (IS_ERR(handle)) {
+		status = PTR_ERR(handle);
+		handle = NULL;
+		mlog_errno(status);
+		goto bail;
+	}
+
+	/* Starting to change things, restart is no longer possible. */
+	ocfs2_block_signals(&oldset);
+	did_block_signals = 1;
+
+	status = dquot_alloc_inode(inode);
+	if (status)
+		goto bail;
+	did_quota_inode = 1;
+
+	trace_ocfs2_symlink_create(dir, dentry, dentry->d_name.len,
+				   dentry->d_name.name,
+				   (unsigned long long)OCFS2_I(dir)->ip_blkno,
+				   inode->i_mode);
+
+	status = ocfs2_mknod_locked(osb, dir, inode,
+				    0, &new_fe_bh, parent_fe_bh, handle,
+				    inode_ac);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail;
+	}
+
+	fe = (struct ocfs2_dinode *) new_fe_bh->b_data;
+	inode->i_rdev = 0;
+	newsize = l - 1;
+	inode->i_op = &ocfs2_symlink_inode_operations;
+	inode_nohighmem(inode);
+	if (l > ocfs2_fast_symlink_chars(sb)) {
+		u32 offset = 0;
+
+		status = dquot_alloc_space_nodirty(inode,
+		    ocfs2_clusters_to_bytes(osb->sb, 1));
+		if (status)
+			goto bail;
+		did_quota = 1;
+		inode->i_mapping->a_ops = &ocfs2_aops;
+		status = ocfs2_add_inode_data(osb, inode, &offset, 1, 0,
+					      new_fe_bh,
+					      handle, data_ac, NULL,
+					      NULL);
+		if (status < 0) {
+			if (status != -ENOSPC && status != -EINTR) {
+				mlog(ML_ERROR,
+				     "Failed to extend file to %llu\n",
+				     (unsigned long long)newsize);
+				mlog_errno(status);
+				status = -ENOSPC;
+			}
+			goto bail;
+		}
+		i_size_write(inode, newsize);
+		inode->i_blocks = ocfs2_inode_sector_count(inode);
+	} else {
+		inode->i_mapping->a_ops = &ocfs2_fast_symlink_aops;
+		memcpy((char *) fe->id2.i_symlink, symname, l);
+		i_size_write(inode, newsize);
+		inode->i_blocks = 0;
+	}
+
+	status = ocfs2_mark_inode_dirty(handle, inode, new_fe_bh);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail;
+	}
+
+	if (!ocfs2_inode_is_fast_symlink(inode)) {
+		status = ocfs2_create_symlink_data(osb, handle, inode,
+						   symname);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
+	}
+
+	if (si.enable) {
+		status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si,
+						 xattr_ac, data_ac);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
+	}
+
+	/*
+	 * Do this before adding the entry to the directory. We add
+	 * also set d_op after success so that ->d_iput() will cleanup
+	 * the dentry lock even if ocfs2_add_entry() fails below.
+	 */
+	status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno);
+	if (status) {
+		mlog_errno(status);
+		goto bail;
+	}
+
+	dl = dentry->d_fsdata;
+
+	status = ocfs2_add_entry(handle, dentry, inode,
+				 le64_to_cpu(fe->i_blkno), parent_fe_bh,
+				 &lookup);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail;
+	}
+
+	insert_inode_hash(inode);
+	d_instantiate(dentry, inode);
+bail:
+	if (status < 0 && did_quota)
+		dquot_free_space_nodirty(inode,
+					ocfs2_clusters_to_bytes(osb->sb, 1));
+	if (status < 0 && did_quota_inode)
+		dquot_free_inode(inode);
+	if (handle) {
+		if (status < 0 && fe)
+			ocfs2_set_links_count(fe, 0);
+		ocfs2_commit_trans(osb, handle);
+	}
+
+	ocfs2_inode_unlock(dir, 1);
+	if (did_block_signals)
+		ocfs2_unblock_signals(&oldset);
+
+	brelse(new_fe_bh);
+	brelse(parent_fe_bh);
+	kfree(si.value);
+	ocfs2_free_dir_lookup_result(&lookup);
+	if (inode_ac)
+		ocfs2_free_alloc_context(inode_ac);
+	if (data_ac)
+		ocfs2_free_alloc_context(data_ac);
+	if (xattr_ac)
+		ocfs2_free_alloc_context(xattr_ac);
+	if ((status < 0) && inode) {
+		if (dl)
+			ocfs2_cleanup_add_entry_failure(osb, dentry, inode);
+
+		OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR;
+		clear_nlink(inode);
+		iput(inode);
+	}
+
+	if (status)
+		mlog_errno(status);
+
+	return status;
+}
+
+static int ocfs2_blkno_stringify(u64 blkno, char *name)
+{
+	int status, namelen;
+
+	namelen = snprintf(name, OCFS2_ORPHAN_NAMELEN + 1, "%016llx",
+			   (long long)blkno);
+	if (namelen <= 0) {
+		if (namelen)
+			status = namelen;
+		else
+			status = -EINVAL;
+		mlog_errno(status);
+		goto bail;
+	}
+	if (namelen != OCFS2_ORPHAN_NAMELEN) {
+		status = -EINVAL;
+		mlog_errno(status);
+		goto bail;
+	}
+
+	trace_ocfs2_blkno_stringify(blkno, name, namelen);
+
+	status = 0;
+bail:
+	if (status < 0)
+		mlog_errno(status);
+	return status;
+}
+
+static int ocfs2_lookup_lock_orphan_dir(struct ocfs2_super *osb,
+					struct inode **ret_orphan_dir,
+					struct buffer_head **ret_orphan_dir_bh)
+{
+	struct inode *orphan_dir_inode;
+	struct buffer_head *orphan_dir_bh = NULL;
+	int ret = 0;
+
+	orphan_dir_inode = ocfs2_get_system_file_inode(osb,
+						       ORPHAN_DIR_SYSTEM_INODE,
+						       osb->slot_num);
+	if (!orphan_dir_inode) {
+		ret = -ENOENT;
+		mlog_errno(ret);
+		return ret;
+	}
+
+	inode_lock(orphan_dir_inode);
+
+	ret = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
+	if (ret < 0) {
+		inode_unlock(orphan_dir_inode);
+		iput(orphan_dir_inode);
+
+		mlog_errno(ret);
+		return ret;
+	}
+
+	*ret_orphan_dir = orphan_dir_inode;
+	*ret_orphan_dir_bh = orphan_dir_bh;
+
+	return 0;
+}
+
+static int __ocfs2_prepare_orphan_dir(struct inode *orphan_dir_inode,
+				      struct buffer_head *orphan_dir_bh,
+				      u64 blkno,
+				      char *name,
+				      struct ocfs2_dir_lookup_result *lookup,
+				      bool dio)
+{
+	int ret;
+	struct ocfs2_super *osb = OCFS2_SB(orphan_dir_inode->i_sb);
+	int namelen = dio ?
+			(OCFS2_DIO_ORPHAN_PREFIX_LEN + OCFS2_ORPHAN_NAMELEN) :
+			OCFS2_ORPHAN_NAMELEN;
+
+	if (dio) {
+		ret = snprintf(name, OCFS2_DIO_ORPHAN_PREFIX_LEN + 1, "%s",
+				OCFS2_DIO_ORPHAN_PREFIX);
+		if (ret != OCFS2_DIO_ORPHAN_PREFIX_LEN) {
+			ret = -EINVAL;
+			mlog_errno(ret);
+			return ret;
+		}
+
+		ret = ocfs2_blkno_stringify(blkno,
+				name + OCFS2_DIO_ORPHAN_PREFIX_LEN);
+	} else
+		ret = ocfs2_blkno_stringify(blkno, name);
+	if (ret < 0) {
+		mlog_errno(ret);
+		return ret;
+	}
+
+	ret = ocfs2_prepare_dir_for_insert(osb, orphan_dir_inode,
+					   orphan_dir_bh, name,
+					   namelen, lookup);
+	if (ret < 0) {
+		mlog_errno(ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * ocfs2_prepare_orphan_dir() - Prepare an orphan directory for
+ * insertion of an orphan.
+ * @osb: ocfs2 file system
+ * @ret_orphan_dir: Orphan dir inode - returned locked!
+ * @blkno: Actual block number of the inode to be inserted into orphan dir.
+ * @lookup: dir lookup result, to be passed back into functions like
+ *          ocfs2_orphan_add
+ *
+ * Returns zero on success and the ret_orphan_dir, name and lookup
+ * fields will be populated.
+ *
+ * Returns non-zero on failure. 
+ */
+static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
+				    struct inode **ret_orphan_dir,
+				    u64 blkno,
+				    char *name,
+				    struct ocfs2_dir_lookup_result *lookup,
+				    bool dio)
+{
+	struct inode *orphan_dir_inode = NULL;
+	struct buffer_head *orphan_dir_bh = NULL;
+	int ret = 0;
+
+	ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir_inode,
+					   &orphan_dir_bh);
+	if (ret < 0) {
+		mlog_errno(ret);
+		return ret;
+	}
+
+	ret = __ocfs2_prepare_orphan_dir(orphan_dir_inode, orphan_dir_bh,
+					 blkno, name, lookup, dio);
+	if (ret < 0) {
+		mlog_errno(ret);
+		goto out;
+	}
+
+	*ret_orphan_dir = orphan_dir_inode;
+
+out:
+	brelse(orphan_dir_bh);
+
+	if (ret) {
+		ocfs2_inode_unlock(orphan_dir_inode, 1);
+		inode_unlock(orphan_dir_inode);
+		iput(orphan_dir_inode);
+	}
+
+	if (ret)
+		mlog_errno(ret);
+	return ret;
+}
+
+static int ocfs2_orphan_add(struct ocfs2_super *osb,
+			    handle_t *handle,
+			    struct inode *inode,
+			    struct buffer_head *fe_bh,
+			    char *name,
+			    struct ocfs2_dir_lookup_result *lookup,
+			    struct inode *orphan_dir_inode,
+			    bool dio)
+{
+	struct buffer_head *orphan_dir_bh = NULL;
+	int status = 0;
+	struct ocfs2_dinode *orphan_fe;
+	struct ocfs2_dinode *fe = (struct ocfs2_dinode *) fe_bh->b_data;
+	int namelen = dio ?
+			(OCFS2_DIO_ORPHAN_PREFIX_LEN + OCFS2_ORPHAN_NAMELEN) :
+			OCFS2_ORPHAN_NAMELEN;
+
+	trace_ocfs2_orphan_add_begin(
+				(unsigned long long)OCFS2_I(inode)->ip_blkno);
+
+	status = ocfs2_read_inode_block(orphan_dir_inode, &orphan_dir_bh);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	status = ocfs2_journal_access_di(handle,
+					 INODE_CACHE(orphan_dir_inode),
+					 orphan_dir_bh,
+					 OCFS2_JOURNAL_ACCESS_WRITE);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	/*
+	 * We're going to journal the change of i_flags and i_orphaned_slot.
+	 * It's safe anyway, though some callers may duplicate the journaling.
+	 * Journaling within the func just make the logic look more
+	 * straightforward.
+	 */
+	status = ocfs2_journal_access_di(handle,
+					 INODE_CACHE(inode),
+					 fe_bh,
+					 OCFS2_JOURNAL_ACCESS_WRITE);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	/* we're a cluster, and nlink can change on disk from
+	 * underneath us... */
+	orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data;
+	if (S_ISDIR(inode->i_mode))
+		ocfs2_add_links_count(orphan_fe, 1);
+	set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe));
+	ocfs2_journal_dirty(handle, orphan_dir_bh);
+
+	status = __ocfs2_add_entry(handle, orphan_dir_inode, name,
+				   namelen, inode,
+				   OCFS2_I(inode)->ip_blkno,
+				   orphan_dir_bh, lookup);
+	if (status < 0) {
+		mlog_errno(status);
+		goto rollback;
+	}
+
+	if (dio) {
+		/* Update flag OCFS2_DIO_ORPHANED_FL and record the orphan
+		 * slot.
+		 */
+		fe->i_flags |= cpu_to_le32(OCFS2_DIO_ORPHANED_FL);
+		fe->i_dio_orphaned_slot = cpu_to_le16(osb->slot_num);
+	} else {
+		fe->i_flags |= cpu_to_le32(OCFS2_ORPHANED_FL);
+		OCFS2_I(inode)->ip_flags &= ~OCFS2_INODE_SKIP_ORPHAN_DIR;
+
+		/* Record which orphan dir our inode now resides
+		 * in. delete_inode will use this to determine which orphan
+		 * dir to lock. */
+		fe->i_orphaned_slot = cpu_to_le16(osb->slot_num);
+	}
+
+	ocfs2_journal_dirty(handle, fe_bh);
+
+	trace_ocfs2_orphan_add_end((unsigned long long)OCFS2_I(inode)->ip_blkno,
+				   osb->slot_num);
+
+rollback:
+	if (status < 0) {
+		if (S_ISDIR(inode->i_mode))
+			ocfs2_add_links_count(orphan_fe, -1);
+		set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe));
+	}
+
+leave:
+	brelse(orphan_dir_bh);
+
+	return status;
+}
+
+/* unlike orphan_add, we expect the orphan dir to already be locked here. */
+int ocfs2_orphan_del(struct ocfs2_super *osb,
+		     handle_t *handle,
+		     struct inode *orphan_dir_inode,
+		     struct inode *inode,
+		     struct buffer_head *orphan_dir_bh,
+		     bool dio)
+{
+	char name[OCFS2_DIO_ORPHAN_PREFIX_LEN + OCFS2_ORPHAN_NAMELEN + 1];
+	struct ocfs2_dinode *orphan_fe;
+	int status = 0;
+	struct ocfs2_dir_lookup_result lookup = { NULL, };
+
+	if (dio) {
+		status = snprintf(name, OCFS2_DIO_ORPHAN_PREFIX_LEN + 1, "%s",
+				OCFS2_DIO_ORPHAN_PREFIX);
+		if (status != OCFS2_DIO_ORPHAN_PREFIX_LEN) {
+			status = -EINVAL;
+			mlog_errno(status);
+			return status;
+		}
+
+		status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno,
+				name + OCFS2_DIO_ORPHAN_PREFIX_LEN);
+	} else
+		status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno, name);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	trace_ocfs2_orphan_del(
+	     (unsigned long long)OCFS2_I(orphan_dir_inode)->ip_blkno,
+	     name, strlen(name));
+
+	status = ocfs2_journal_access_di(handle,
+					 INODE_CACHE(orphan_dir_inode),
+					 orphan_dir_bh,
+					 OCFS2_JOURNAL_ACCESS_WRITE);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	/* find it's spot in the orphan directory */
+	status = ocfs2_find_entry(name, strlen(name), orphan_dir_inode,
+				  &lookup);
+	if (status) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	/* remove it from the orphan directory */
+	status = ocfs2_delete_entry(handle, orphan_dir_inode, &lookup);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	/* do the i_nlink dance! :) */
+	orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data;
+	if (S_ISDIR(inode->i_mode))
+		ocfs2_add_links_count(orphan_fe, -1);
+	set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe));
+	ocfs2_journal_dirty(handle, orphan_dir_bh);
+
+leave:
+	ocfs2_free_dir_lookup_result(&lookup);
+
+	if (status)
+		mlog_errno(status);
+	return status;
+}
+
+/**
+ * ocfs2_prep_new_orphaned_file() - Prepare the orphan dir to receive a newly
+ * allocated file. This is different from the typical 'add to orphan dir'
+ * operation in that the inode does not yet exist. This is a problem because
+ * the orphan dir stringifies the inode block number to come up with it's
+ * dirent. Obviously if the inode does not yet exist we have a chicken and egg
+ * problem. This function works around it by calling deeper into the orphan
+ * and suballoc code than other callers. Use this only by necessity.
+ * @dir: The directory which this inode will ultimately wind up under - not the
+ * orphan dir!
+ * @dir_bh: buffer_head the @dir inode block
+ * @orphan_name: string of length (CFS2_ORPHAN_NAMELEN + 1). Will be filled
+ * with the string to be used for orphan dirent. Pass back to the orphan dir
+ * code.
+ * @ret_orphan_dir: orphan dir inode returned to be passed back into orphan
+ * dir code.
+ * @ret_di_blkno: block number where the new inode will be allocated.
+ * @orphan_insert: Dir insert context to be passed back into orphan dir code.
+ * @ret_inode_ac: Inode alloc context to be passed back to the allocator.
+ *
+ * Returns zero on success and the ret_orphan_dir, name and lookup
+ * fields will be populated.
+ *
+ * Returns non-zero on failure. 
+ */
+static int ocfs2_prep_new_orphaned_file(struct inode *dir,
+					struct buffer_head *dir_bh,
+					char *orphan_name,
+					struct inode **ret_orphan_dir,
+					u64 *ret_di_blkno,
+					struct ocfs2_dir_lookup_result *orphan_insert,
+					struct ocfs2_alloc_context **ret_inode_ac)
+{
+	int ret;
+	u64 di_blkno;
+	struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
+	struct inode *orphan_dir = NULL;
+	struct buffer_head *orphan_dir_bh = NULL;
+	struct ocfs2_alloc_context *inode_ac = NULL;
+
+	ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir, &orphan_dir_bh);
+	if (ret < 0) {
+		mlog_errno(ret);
+		return ret;
+	}
+
+	/* reserve an inode spot */
+	ret = ocfs2_reserve_new_inode(osb, &inode_ac);
+	if (ret < 0) {
+		if (ret != -ENOSPC)
+			mlog_errno(ret);
+		goto out;
+	}
+
+	ret = ocfs2_find_new_inode_loc(dir, dir_bh, inode_ac,
+				       &di_blkno);
+	if (ret) {
+		mlog_errno(ret);
+		goto out;
+	}
+
+	ret = __ocfs2_prepare_orphan_dir(orphan_dir, orphan_dir_bh,
+					 di_blkno, orphan_name, orphan_insert,
+					 false);
+	if (ret < 0) {
+		mlog_errno(ret);
+		goto out;
+	}
+
+out:
+	if (ret == 0) {
+		*ret_orphan_dir = orphan_dir;
+		*ret_di_blkno = di_blkno;
+		*ret_inode_ac = inode_ac;
+		/*
+		 * orphan_name and orphan_insert are already up to
+		 * date via prepare_orphan_dir
+		 */
+	} else {
+		/* Unroll reserve_new_inode* */
+		if (inode_ac)
+			ocfs2_free_alloc_context(inode_ac);
+
+		/* Unroll orphan dir locking */
+		inode_unlock(orphan_dir);
+		ocfs2_inode_unlock(orphan_dir, 1);
+		iput(orphan_dir);
+	}
+
+	brelse(orphan_dir_bh);
+
+	return ret;
+}
+
+int ocfs2_create_inode_in_orphan(struct inode *dir,
+				 int mode,
+				 struct inode **new_inode)
+{
+	int status, did_quota_inode = 0;
+	struct inode *inode = NULL;
+	struct inode *orphan_dir = NULL;
+	struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
+	handle_t *handle = NULL;
+	char orphan_name[OCFS2_ORPHAN_NAMELEN + 1];
+	struct buffer_head *parent_di_bh = NULL;
+	struct buffer_head *new_di_bh = NULL;
+	struct ocfs2_alloc_context *inode_ac = NULL;
+	struct ocfs2_dir_lookup_result orphan_insert = { NULL, };
+	u64 di_blkno, suballoc_loc;
+	u16 suballoc_bit;
+
+	status = ocfs2_inode_lock(dir, &parent_di_bh, 1);
+	if (status < 0) {
+		if (status != -ENOENT)
+			mlog_errno(status);
+		return status;
+	}
+
+	status = ocfs2_prep_new_orphaned_file(dir, parent_di_bh,
+					      orphan_name, &orphan_dir,
+					      &di_blkno, &orphan_insert, &inode_ac);
+	if (status < 0) {
+		if (status != -ENOSPC)
+			mlog_errno(status);
+		goto leave;
+	}
+
+	inode = ocfs2_get_init_inode(dir, mode);
+	if (IS_ERR(inode)) {
+		status = PTR_ERR(inode);
+		inode = NULL;
+		mlog_errno(status);
+		goto leave;
+	}
+
+	handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, 0, 0));
+	if (IS_ERR(handle)) {
+		status = PTR_ERR(handle);
+		handle = NULL;
+		mlog_errno(status);
+		goto leave;
+	}
+
+	status = dquot_alloc_inode(inode);
+	if (status)
+		goto leave;
+	did_quota_inode = 1;
+
+	status = ocfs2_claim_new_inode_at_loc(handle, dir, inode_ac,
+					      &suballoc_loc,
+					      &suballoc_bit, di_blkno);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	clear_nlink(inode);
+	/* do the real work now. */
+	status = __ocfs2_mknod_locked(dir, inode,
+				      0, &new_di_bh, parent_di_bh, handle,
+				      inode_ac, di_blkno, suballoc_loc,
+				      suballoc_bit);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	status = ocfs2_orphan_add(osb, handle, inode, new_di_bh, orphan_name,
+				  &orphan_insert, orphan_dir, false);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	/* get open lock so that only nodes can't remove it from orphan dir. */
+	status = ocfs2_open_lock(inode);
+	if (status < 0)
+		mlog_errno(status);
+
+	insert_inode_hash(inode);
+leave:
+	if (status < 0 && did_quota_inode)
+		dquot_free_inode(inode);
+	if (handle)
+		ocfs2_commit_trans(osb, handle);
+
+	if (orphan_dir) {
+		/* This was locked for us in ocfs2_prepare_orphan_dir() */
+		ocfs2_inode_unlock(orphan_dir, 1);
+		inode_unlock(orphan_dir);
+		iput(orphan_dir);
+	}
+
+	if ((status < 0) && inode) {
+		clear_nlink(inode);
+		iput(inode);
+	}
+
+	if (inode_ac)
+		ocfs2_free_alloc_context(inode_ac);
+
+	brelse(new_di_bh);
+
+	if (!status)
+		*new_inode = inode;
+
+	ocfs2_free_dir_lookup_result(&orphan_insert);
+
+	ocfs2_inode_unlock(dir, 1);
+	brelse(parent_di_bh);
+	return status;
+}
+
+int ocfs2_add_inode_to_orphan(struct ocfs2_super *osb,
+	struct inode *inode)
+{
+	char orphan_name[OCFS2_DIO_ORPHAN_PREFIX_LEN + OCFS2_ORPHAN_NAMELEN + 1];
+	struct inode *orphan_dir_inode = NULL;
+	struct ocfs2_dir_lookup_result orphan_insert = { NULL, };
+	struct buffer_head *di_bh = NULL;
+	int status = 0;
+	handle_t *handle = NULL;
+	struct ocfs2_dinode *di = NULL;
+
+	status = ocfs2_inode_lock(inode, &di_bh, 1);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail;
+	}
+
+	di = (struct ocfs2_dinode *) di_bh->b_data;
+	/*
+	 * Another append dio crashed?
+	 * If so, manually recover it first.
+	 */
+	if (unlikely(di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL))) {
+		status = ocfs2_truncate_file(inode, di_bh, i_size_read(inode));
+		if (status < 0) {
+			if (status != -ENOSPC)
+				mlog_errno(status);
+			goto bail_unlock_inode;
+		}
+
+		status = ocfs2_del_inode_from_orphan(osb, inode, di_bh, 0, 0);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail_unlock_inode;
+		}
+	}
+
+	status = ocfs2_prepare_orphan_dir(osb, &orphan_dir_inode,
+			OCFS2_I(inode)->ip_blkno,
+			orphan_name,
+			&orphan_insert,
+			true);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail_unlock_inode;
+	}
+
+	handle = ocfs2_start_trans(osb,
+			OCFS2_INODE_ADD_TO_ORPHAN_CREDITS);
+	if (IS_ERR(handle)) {
+		status = PTR_ERR(handle);
+		goto bail_unlock_orphan;
+	}
+
+	status = ocfs2_orphan_add(osb, handle, inode, di_bh, orphan_name,
+			&orphan_insert, orphan_dir_inode, true);
+	if (status)
+		mlog_errno(status);
+
+	ocfs2_commit_trans(osb, handle);
+
+bail_unlock_orphan:
+	ocfs2_inode_unlock(orphan_dir_inode, 1);
+	inode_unlock(orphan_dir_inode);
+	iput(orphan_dir_inode);
+
+	ocfs2_free_dir_lookup_result(&orphan_insert);
+
+bail_unlock_inode:
+	ocfs2_inode_unlock(inode, 1);
+	brelse(di_bh);
+
+bail:
+	return status;
+}
+
+int ocfs2_del_inode_from_orphan(struct ocfs2_super *osb,
+		struct inode *inode, struct buffer_head *di_bh,
+		int update_isize, loff_t end)
+{
+	struct inode *orphan_dir_inode = NULL;
+	struct buffer_head *orphan_dir_bh = NULL;
+	struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
+	handle_t *handle = NULL;
+	int status = 0;
+
+	orphan_dir_inode = ocfs2_get_system_file_inode(osb,
+			ORPHAN_DIR_SYSTEM_INODE,
+			le16_to_cpu(di->i_dio_orphaned_slot));
+	if (!orphan_dir_inode) {
+		status = -ENOENT;
+		mlog_errno(status);
+		goto bail;
+	}
+
+	inode_lock(orphan_dir_inode);
+	status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
+	if (status < 0) {
+		inode_unlock(orphan_dir_inode);
+		iput(orphan_dir_inode);
+		mlog_errno(status);
+		goto bail;
+	}
+
+	handle = ocfs2_start_trans(osb,
+			OCFS2_INODE_DEL_FROM_ORPHAN_CREDITS);
+	if (IS_ERR(handle)) {
+		status = PTR_ERR(handle);
+		goto bail_unlock_orphan;
+	}
+
+	BUG_ON(!(di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL)));
+
+	status = ocfs2_orphan_del(osb, handle, orphan_dir_inode,
+				inode, orphan_dir_bh, true);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail_commit;
+	}
+
+	status = ocfs2_journal_access_di(handle,
+			INODE_CACHE(inode),
+			di_bh,
+			OCFS2_JOURNAL_ACCESS_WRITE);
+	if (status < 0) {
+		mlog_errno(status);
+		goto bail_commit;
+	}
+
+	di->i_flags &= ~cpu_to_le32(OCFS2_DIO_ORPHANED_FL);
+	di->i_dio_orphaned_slot = 0;
+
+	if (update_isize) {
+		status = ocfs2_set_inode_size(handle, inode, di_bh, end);
+		if (status)
+			mlog_errno(status);
+	} else
+		ocfs2_journal_dirty(handle, di_bh);
+
+bail_commit:
+	ocfs2_commit_trans(osb, handle);
+
+bail_unlock_orphan:
+	ocfs2_inode_unlock(orphan_dir_inode, 1);
+	inode_unlock(orphan_dir_inode);
+	brelse(orphan_dir_bh);
+	iput(orphan_dir_inode);
+
+bail:
+	return status;
+}
+
+int ocfs2_mv_orphaned_inode_to_new(struct inode *dir,
+				   struct inode *inode,
+				   struct dentry *dentry)
+{
+	int status = 0;
+	struct buffer_head *parent_di_bh = NULL;
+	handle_t *handle = NULL;
+	struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
+	struct ocfs2_dinode *dir_di, *di;
+	struct inode *orphan_dir_inode = NULL;
+	struct buffer_head *orphan_dir_bh = NULL;
+	struct buffer_head *di_bh = NULL;
+	struct ocfs2_dir_lookup_result lookup = { NULL, };
+
+	trace_ocfs2_mv_orphaned_inode_to_new(dir, dentry,
+				dentry->d_name.len, dentry->d_name.name,
+				(unsigned long long)OCFS2_I(dir)->ip_blkno,
+				(unsigned long long)OCFS2_I(inode)->ip_blkno);
+
+	status = ocfs2_inode_lock(dir, &parent_di_bh, 1);
+	if (status < 0) {
+		if (status != -ENOENT)
+			mlog_errno(status);
+		return status;
+	}
+
+	dir_di = (struct ocfs2_dinode *) parent_di_bh->b_data;
+	if (!dir_di->i_links_count) {
+		/* can't make a file in a deleted directory. */
+		status = -ENOENT;
+		goto leave;
+	}
+
+	status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
+					   dentry->d_name.len);
+	if (status)
+		goto leave;
+
+	/* get a spot inside the dir. */
+	status = ocfs2_prepare_dir_for_insert(osb, dir, parent_di_bh,
+					      dentry->d_name.name,
+					      dentry->d_name.len, &lookup);
+	if (status < 0) {
+		mlog_errno(status);
+		goto leave;
+	}
+
+	orphan_dir_inode = ocfs2_get_system_file_inode(osb,
+						       ORPHAN_DIR_SYSTEM_INODE,
+						       osb->slot_num);
+	if (!orphan_dir_inode) {
+		status = -ENOENT;
+		mlog_errno(status);
+		goto leave;
+	}
+
+	inode_lock(orphan_dir_inode);
+
+	status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
+	if (status < 0) {
+		mlog_errno(status);
+		inode_unlock(orphan_dir_inode);
+		iput(orphan_dir_inode);
+		goto leave;
+	}
+
+	status = ocfs2_read_inode_block(inode, &di_bh);
+	if (status < 0) {
+		mlog_errno(status);
+		goto orphan_unlock;
+	}
+
+	handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb));
+	if (IS_ERR(handle)) {
+		status = PTR_ERR(handle);
+		handle = NULL;
+		mlog_errno(status);
+		goto orphan_unlock;
+	}
+
+	status = ocfs2_journal_access_di(handle, INODE_CACHE(inode),
+					 di_bh, OCFS2_JOURNAL_ACCESS_WRITE);
+	if (status < 0) {
+		mlog_errno(status);
+		goto out_commit;
+	}
+
+	status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode,
+				  orphan_dir_bh, false);
+	if (status < 0) {
+		mlog_errno(status);
+		goto out_commit;
+	}
+
+	di = (struct ocfs2_dinode *)di_bh->b_data;
+	di->i_flags &= ~cpu_to_le32(OCFS2_ORPHANED_FL);
+	di->i_orphaned_slot = 0;
+	set_nlink(inode, 1);
+	ocfs2_set_links_count(di, inode->i_nlink);
+	ocfs2_update_inode_fsync_trans(handle, inode, 1);
+	ocfs2_journal_dirty(handle, di_bh);
+
+	status = ocfs2_add_entry(handle, dentry, inode,
+				 OCFS2_I(inode)->ip_blkno, parent_di_bh,
+				 &lookup);
+	if (status < 0) {
+		mlog_errno(status);
+		goto out_commit;
+	}
+
+	status = ocfs2_dentry_attach_lock(dentry, inode,
+					  OCFS2_I(dir)->ip_blkno);
+	if (status) {
+		mlog_errno(status);
+		goto out_commit;
+	}
+
+	d_instantiate(dentry, inode);
+	status = 0;
+out_commit:
+	ocfs2_commit_trans(osb, handle);
+orphan_unlock:
+	ocfs2_inode_unlock(orphan_dir_inode, 1);
+	inode_unlock(orphan_dir_inode);
+	iput(orphan_dir_inode);
+leave:
+
+	ocfs2_inode_unlock(dir, 1);
+
+	brelse(di_bh);
+	brelse(parent_di_bh);
+	brelse(orphan_dir_bh);
+
+	ocfs2_free_dir_lookup_result(&lookup);
+
+	if (status)
+		mlog_errno(status);
+
+	return status;
+}
+
+const struct inode_operations ocfs2_dir_iops = {
+	.create		= ocfs2_create,
+	.lookup		= ocfs2_lookup,
+	.link		= ocfs2_link,
+	.unlink		= ocfs2_unlink,
+	.rmdir		= ocfs2_unlink,
+	.symlink	= ocfs2_symlink,
+	.mkdir		= ocfs2_mkdir,
+	.mknod		= ocfs2_mknod,
+	.rename		= ocfs2_rename,
+	.setattr	= ocfs2_setattr,
+	.getattr	= ocfs2_getattr,
+	.permission	= ocfs2_permission,
+	.listxattr	= ocfs2_listxattr,
+	.fiemap         = ocfs2_fiemap,
+	.get_acl	= ocfs2_iop_get_acl,
+	.set_acl	= ocfs2_iop_set_acl,
+	.fileattr_get	= ocfs2_fileattr_get,
+	.fileattr_set	= ocfs2_fileattr_set,
+};