Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 1910 deletions

diff --git a/ANDROID_3.4.5/fs/xfs/xfs_dir2_leaf.c b/ANDROID_3.4.5/fs/xfs/xfs_dir2_leaf.c
deleted file mode 100644
index 66e108f5..00000000
--- a/ANDROID_3.4.5/fs/xfs/xfs_dir2_leaf.c
+++ /dev/null
@@ -1,1910 +0,0 @@
-/*
- * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#include "xfs.h"
-#include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_ag.h"
-#include "xfs_mount.h"
-#include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
-#include "xfs_bmap.h"
-#include "xfs_dir2_format.h"
-#include "xfs_dir2_priv.h"
-#include "xfs_error.h"
-#include "xfs_trace.h"
-
-/*
- * Local function declarations.
- */
-#ifdef DEBUG
-static void xfs_dir2_leaf_check(xfs_inode_t *dp, xfs_dabuf_t *bp);
-#else
-#define	xfs_dir2_leaf_check(dp, bp)
-#endif
-static int xfs_dir2_leaf_lookup_int(xfs_da_args_t *args, xfs_dabuf_t **lbpp,
-				    int *indexp, xfs_dabuf_t **dbpp);
-static void xfs_dir2_leaf_log_bests(struct xfs_trans *tp, struct xfs_dabuf *bp,
-				    int first, int last);
-static void xfs_dir2_leaf_log_tail(struct xfs_trans *tp, struct xfs_dabuf *bp);
-
-
-/*
- * Convert a block form directory to a leaf form directory.
- */
-int						/* error */
-xfs_dir2_block_to_leaf(
-	xfs_da_args_t		*args,		/* operation arguments */
-	xfs_dabuf_t		*dbp)		/* input block's buffer */
-{
-	__be16			*bestsp;	/* leaf's bestsp entries */
-	xfs_dablk_t		blkno;		/* leaf block's bno */
-	xfs_dir2_data_hdr_t	*hdr;		/* block header */
-	xfs_dir2_leaf_entry_t	*blp;		/* block's leaf entries */
-	xfs_dir2_block_tail_t	*btp;		/* block's tail */
-	xfs_inode_t		*dp;		/* incore directory inode */
-	int			error;		/* error return code */
-	xfs_dabuf_t		*lbp;		/* leaf block's buffer */
-	xfs_dir2_db_t		ldb;		/* leaf block's bno */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_dir2_leaf_tail_t	*ltp;		/* leaf's tail */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-	int			needlog;	/* need to log block header */
-	int			needscan;	/* need to rescan bestfree */
-	xfs_trans_t		*tp;		/* transaction pointer */
-
-	trace_xfs_dir2_block_to_leaf(args);
-
-	dp = args->dp;
-	mp = dp->i_mount;
-	tp = args->trans;
-	/*
-	 * Add the leaf block to the inode.
-	 * This interface will only put blocks in the leaf/node range.
-	 * Since that's empty now, we'll get the root (block 0 in range).
-	 */
-	if ((error = xfs_da_grow_inode(args, &blkno))) {
-		return error;
-	}
-	ldb = xfs_dir2_da_to_db(mp, blkno);
-	ASSERT(ldb == XFS_DIR2_LEAF_FIRSTDB(mp));
-	/*
-	 * Initialize the leaf block, get a buffer for it.
-	 */
-	if ((error = xfs_dir2_leaf_init(args, ldb, &lbp, XFS_DIR2_LEAF1_MAGIC))) {
-		return error;
-	}
-	ASSERT(lbp != NULL);
-	leaf = lbp->data;
-	hdr = dbp->data;
-	xfs_dir2_data_check(dp, dbp);
-	btp = xfs_dir2_block_tail_p(mp, hdr);
-	blp = xfs_dir2_block_leaf_p(btp);
-	/*
-	 * Set the counts in the leaf header.
-	 */
-	leaf->hdr.count = cpu_to_be16(be32_to_cpu(btp->count));
-	leaf->hdr.stale = cpu_to_be16(be32_to_cpu(btp->stale));
-	/*
-	 * Could compact these but I think we always do the conversion
-	 * after squeezing out stale entries.
-	 */
-	memcpy(leaf->ents, blp, be32_to_cpu(btp->count) * sizeof(xfs_dir2_leaf_entry_t));
-	xfs_dir2_leaf_log_ents(tp, lbp, 0, be16_to_cpu(leaf->hdr.count) - 1);
-	needscan = 0;
-	needlog = 1;
-	/*
-	 * Make the space formerly occupied by the leaf entries and block
-	 * tail be free.
-	 */
-	xfs_dir2_data_make_free(tp, dbp,
-		(xfs_dir2_data_aoff_t)((char *)blp - (char *)hdr),
-		(xfs_dir2_data_aoff_t)((char *)hdr + mp->m_dirblksize -
-				       (char *)blp),
-		&needlog, &needscan);
-	/*
-	 * Fix up the block header, make it a data block.
-	 */
-	hdr->magic = cpu_to_be32(XFS_DIR2_DATA_MAGIC);
-	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
-	/*
-	 * Set up leaf tail and bests table.
-	 */
-	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
-	ltp->bestcount = cpu_to_be32(1);
-	bestsp = xfs_dir2_leaf_bests_p(ltp);
-	bestsp[0] =  hdr->bestfree[0].length;
-	/*
-	 * Log the data header and leaf bests table.
-	 */
-	if (needlog)
-		xfs_dir2_data_log_header(tp, dbp);
-	xfs_dir2_leaf_check(dp, lbp);
-	xfs_dir2_data_check(dp, dbp);
-	xfs_dir2_leaf_log_bests(tp, lbp, 0, 0);
-	xfs_da_buf_done(lbp);
-	return 0;
-}
-
-STATIC void
-xfs_dir2_leaf_find_stale(
-	struct xfs_dir2_leaf	*leaf,
-	int			index,
-	int			*lowstale,
-	int			*highstale)
-{
-	/*
-	 * Find the first stale entry before our index, if any.
-	 */
-	for (*lowstale = index - 1; *lowstale >= 0; --*lowstale) {
-		if (leaf->ents[*lowstale].address ==
-		    cpu_to_be32(XFS_DIR2_NULL_DATAPTR))
-			break;
-	}
-
-	/*
-	 * Find the first stale entry at or after our index, if any.
-	 * Stop if the result would require moving more entries than using
-	 * lowstale.
-	 */
-	for (*highstale = index;
-	     *highstale < be16_to_cpu(leaf->hdr.count);
-	     ++*highstale) {
-		if (leaf->ents[*highstale].address ==
-		    cpu_to_be32(XFS_DIR2_NULL_DATAPTR))
-			break;
-		if (*lowstale >= 0 && index - *lowstale <= *highstale - index)
-			break;
-	}
-}
-
-struct xfs_dir2_leaf_entry *
-xfs_dir2_leaf_find_entry(
-	xfs_dir2_leaf_t		*leaf,		/* leaf structure */
-	int			index,		/* leaf table position */
-	int			compact,	/* need to compact leaves */
-	int			lowstale,	/* index of prev stale leaf */
-	int			highstale,	/* index of next stale leaf */
-	int			*lfloglow,	/* low leaf logging index */
-	int			*lfloghigh)	/* high leaf logging index */
-{
-	if (!leaf->hdr.stale) {
-		xfs_dir2_leaf_entry_t	*lep;	/* leaf entry table pointer */
-
-		/*
-		 * Now we need to make room to insert the leaf entry.
-		 *
-		 * If there are no stale entries, just insert a hole at index.
-		 */
-		lep = &leaf->ents[index];
-		if (index < be16_to_cpu(leaf->hdr.count))
-			memmove(lep + 1, lep,
-				(be16_to_cpu(leaf->hdr.count) - index) *
-				 sizeof(*lep));
-
-		/*
-		 * Record low and high logging indices for the leaf.
-		 */
-		*lfloglow = index;
-		*lfloghigh = be16_to_cpu(leaf->hdr.count);
-		be16_add_cpu(&leaf->hdr.count, 1);
-		return lep;
-	}
-
-	/*
-	 * There are stale entries.
-	 *
-	 * We will use one of them for the new entry.  It's probably not at
-	 * the right location, so we'll have to shift some up or down first.
-	 *
-	 * If we didn't compact before, we need to find the nearest stale
-	 * entries before and after our insertion point.
-	 */
-	if (compact == 0)
-		xfs_dir2_leaf_find_stale(leaf, index, &lowstale, &highstale);
-
-	/*
-	 * If the low one is better, use it.
-	 */
-	if (lowstale >= 0 &&
-	    (highstale == be16_to_cpu(leaf->hdr.count) ||
-	     index - lowstale - 1 < highstale - index)) {
-		ASSERT(index - lowstale - 1 >= 0);
-		ASSERT(leaf->ents[lowstale].address ==
-		       cpu_to_be32(XFS_DIR2_NULL_DATAPTR));
-
-		/*
-		 * Copy entries up to cover the stale entry and make room
-		 * for the new entry.
-		 */
-		if (index - lowstale - 1 > 0) {
-			memmove(&leaf->ents[lowstale],
-				&leaf->ents[lowstale + 1],
-				(index - lowstale - 1) *
-				sizeof(xfs_dir2_leaf_entry_t));
-		}
-		*lfloglow = MIN(lowstale, *lfloglow);
-		*lfloghigh = MAX(index - 1, *lfloghigh);
-		be16_add_cpu(&leaf->hdr.stale, -1);
-		return &leaf->ents[index - 1];
-	}
-
-	/*
-	 * The high one is better, so use that one.
-	 */
-	ASSERT(highstale - index >= 0);
-	ASSERT(leaf->ents[highstale].address ==
-	       cpu_to_be32(XFS_DIR2_NULL_DATAPTR));
-
-	/*
-	 * Copy entries down to cover the stale entry and make room for the
-	 * new entry.
-	 */
-	if (highstale - index > 0) {
-		memmove(&leaf->ents[index + 1],
-			&leaf->ents[index],
-			(highstale - index) * sizeof(xfs_dir2_leaf_entry_t));
-	}
-	*lfloglow = MIN(index, *lfloglow);
-	*lfloghigh = MAX(highstale, *lfloghigh);
-	be16_add_cpu(&leaf->hdr.stale, -1);
-	return &leaf->ents[index];
-}
-
-/*
- * Add an entry to a leaf form directory.
- */
-int						/* error */
-xfs_dir2_leaf_addname(
-	xfs_da_args_t		*args)		/* operation arguments */
-{
-	__be16			*bestsp;	/* freespace table in leaf */
-	int			compact;	/* need to compact leaves */
-	xfs_dir2_data_hdr_t	*hdr;		/* data block header */
-	xfs_dabuf_t		*dbp;		/* data block buffer */
-	xfs_dir2_data_entry_t	*dep;		/* data block entry */
-	xfs_inode_t		*dp;		/* incore directory inode */
-	xfs_dir2_data_unused_t	*dup;		/* data unused entry */
-	int			error;		/* error return value */
-	int			grown;		/* allocated new data block */
-	int			highstale;	/* index of next stale leaf */
-	int			i;		/* temporary, index */
-	int			index;		/* leaf table position */
-	xfs_dabuf_t		*lbp;		/* leaf's buffer */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	int			length;		/* length of new entry */
-	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry table pointer */
-	int			lfloglow;	/* low leaf logging index */
-	int			lfloghigh;	/* high leaf logging index */
-	int			lowstale;	/* index of prev stale leaf */
-	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail pointer */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-	int			needbytes;	/* leaf block bytes needed */
-	int			needlog;	/* need to log data header */
-	int			needscan;	/* need to rescan data free */
-	__be16			*tagp;		/* end of data entry */
-	xfs_trans_t		*tp;		/* transaction pointer */
-	xfs_dir2_db_t		use_block;	/* data block number */
-
-	trace_xfs_dir2_leaf_addname(args);
-
-	dp = args->dp;
-	tp = args->trans;
-	mp = dp->i_mount;
-	/*
-	 * Read the leaf block.
-	 */
-	error = xfs_da_read_buf(tp, dp, mp->m_dirleafblk, -1, &lbp,
-		XFS_DATA_FORK);
-	if (error) {
-		return error;
-	}
-	ASSERT(lbp != NULL);
-	/*
-	 * Look up the entry by hash value and name.
-	 * We know it's not there, our caller has already done a lookup.
-	 * So the index is of the entry to insert in front of.
-	 * But if there are dup hash values the index is of the first of those.
-	 */
-	index = xfs_dir2_leaf_search_hash(args, lbp);
-	leaf = lbp->data;
-	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
-	bestsp = xfs_dir2_leaf_bests_p(ltp);
-	length = xfs_dir2_data_entsize(args->namelen);
-	/*
-	 * See if there are any entries with the same hash value
-	 * and space in their block for the new entry.
-	 * This is good because it puts multiple same-hash value entries
-	 * in a data block, improving the lookup of those entries.
-	 */
-	for (use_block = -1, lep = &leaf->ents[index];
-	     index < be16_to_cpu(leaf->hdr.count) && be32_to_cpu(lep->hashval) == args->hashval;
-	     index++, lep++) {
-		if (be32_to_cpu(lep->address) == XFS_DIR2_NULL_DATAPTR)
-			continue;
-		i = xfs_dir2_dataptr_to_db(mp, be32_to_cpu(lep->address));
-		ASSERT(i < be32_to_cpu(ltp->bestcount));
-		ASSERT(bestsp[i] != cpu_to_be16(NULLDATAOFF));
-		if (be16_to_cpu(bestsp[i]) >= length) {
-			use_block = i;
-			break;
-		}
-	}
-	/*
-	 * Didn't find a block yet, linear search all the data blocks.
-	 */
-	if (use_block == -1) {
-		for (i = 0; i < be32_to_cpu(ltp->bestcount); i++) {
-			/*
-			 * Remember a block we see that's missing.
-			 */
-			if (bestsp[i] == cpu_to_be16(NULLDATAOFF) &&
-			    use_block == -1)
-				use_block = i;
-			else if (be16_to_cpu(bestsp[i]) >= length) {
-				use_block = i;
-				break;
-			}
-		}
-	}
-	/*
-	 * How many bytes do we need in the leaf block?
-	 */
-	needbytes = 0;
-	if (!leaf->hdr.stale)
-		needbytes += sizeof(xfs_dir2_leaf_entry_t);
-	if (use_block == -1)
-		needbytes += sizeof(xfs_dir2_data_off_t);
-
-	/*
-	 * Now kill use_block if it refers to a missing block, so we
-	 * can use it as an indication of allocation needed.
-	 */
-	if (use_block != -1 && bestsp[use_block] == cpu_to_be16(NULLDATAOFF))
-		use_block = -1;
-	/*
-	 * If we don't have enough free bytes but we can make enough
-	 * by compacting out stale entries, we'll do that.
-	 */
-	if ((char *)bestsp - (char *)&leaf->ents[be16_to_cpu(leaf->hdr.count)] <
-				needbytes && be16_to_cpu(leaf->hdr.stale) > 1) {
-		compact = 1;
-	}
-	/*
-	 * Otherwise if we don't have enough free bytes we need to
-	 * convert to node form.
-	 */
-	else if ((char *)bestsp - (char *)&leaf->ents[be16_to_cpu(
-						leaf->hdr.count)] < needbytes) {
-		/*
-		 * Just checking or no space reservation, give up.
-		 */
-		if ((args->op_flags & XFS_DA_OP_JUSTCHECK) ||
-							args->total == 0) {
-			xfs_da_brelse(tp, lbp);
-			return XFS_ERROR(ENOSPC);
-		}
-		/*
-		 * Convert to node form.
-		 */
-		error = xfs_dir2_leaf_to_node(args, lbp);
-		xfs_da_buf_done(lbp);
-		if (error)
-			return error;
-		/*
-		 * Then add the new entry.
-		 */
-		return xfs_dir2_node_addname(args);
-	}
-	/*
-	 * Otherwise it will fit without compaction.
-	 */
-	else
-		compact = 0;
-	/*
-	 * If just checking, then it will fit unless we needed to allocate
-	 * a new data block.
-	 */
-	if (args->op_flags & XFS_DA_OP_JUSTCHECK) {
-		xfs_da_brelse(tp, lbp);
-		return use_block == -1 ? XFS_ERROR(ENOSPC) : 0;
-	}
-	/*
-	 * If no allocations are allowed, return now before we've
-	 * changed anything.
-	 */
-	if (args->total == 0 && use_block == -1) {
-		xfs_da_brelse(tp, lbp);
-		return XFS_ERROR(ENOSPC);
-	}
-	/*
-	 * Need to compact the leaf entries, removing stale ones.
-	 * Leave one stale entry behind - the one closest to our
-	 * insertion index - and we'll shift that one to our insertion
-	 * point later.
-	 */
-	if (compact) {
-		xfs_dir2_leaf_compact_x1(lbp, &index, &lowstale, &highstale,
-			&lfloglow, &lfloghigh);
-	}
-	/*
-	 * There are stale entries, so we'll need log-low and log-high
-	 * impossibly bad values later.
-	 */
-	else if (be16_to_cpu(leaf->hdr.stale)) {
-		lfloglow = be16_to_cpu(leaf->hdr.count);
-		lfloghigh = -1;
-	}
-	/*
-	 * If there was no data block space found, we need to allocate
-	 * a new one.
-	 */
-	if (use_block == -1) {
-		/*
-		 * Add the new data block.
-		 */
-		if ((error = xfs_dir2_grow_inode(args, XFS_DIR2_DATA_SPACE,
-				&use_block))) {
-			xfs_da_brelse(tp, lbp);
-			return error;
-		}
-		/*
-		 * Initialize the block.
-		 */
-		if ((error = xfs_dir2_data_init(args, use_block, &dbp))) {
-			xfs_da_brelse(tp, lbp);
-			return error;
-		}
-		/*
-		 * If we're adding a new data block on the end we need to
-		 * extend the bests table.  Copy it up one entry.
-		 */
-		if (use_block >= be32_to_cpu(ltp->bestcount)) {
-			bestsp--;
-			memmove(&bestsp[0], &bestsp[1],
-				be32_to_cpu(ltp->bestcount) * sizeof(bestsp[0]));
-			be32_add_cpu(&ltp->bestcount, 1);
-			xfs_dir2_leaf_log_tail(tp, lbp);
-			xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
-		}
-		/*
-		 * If we're filling in a previously empty block just log it.
-		 */
-		else
-			xfs_dir2_leaf_log_bests(tp, lbp, use_block, use_block);
-		hdr = dbp->data;
-		bestsp[use_block] = hdr->bestfree[0].length;
-		grown = 1;
-	}
-	/*
-	 * Already had space in some data block.
-	 * Just read that one in.
-	 */
-	else {
-		if ((error =
-		    xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, use_block),
-			    -1, &dbp, XFS_DATA_FORK))) {
-			xfs_da_brelse(tp, lbp);
-			return error;
-		}
-		hdr = dbp->data;
-		grown = 0;
-	}
-	xfs_dir2_data_check(dp, dbp);
-	/*
-	 * Point to the biggest freespace in our data block.
-	 */
-	dup = (xfs_dir2_data_unused_t *)
-	      ((char *)hdr + be16_to_cpu(hdr->bestfree[0].offset));
-	ASSERT(be16_to_cpu(dup->length) >= length);
-	needscan = needlog = 0;
-	/*
-	 * Mark the initial part of our freespace in use for the new entry.
-	 */
-	xfs_dir2_data_use_free(tp, dbp, dup,
-		(xfs_dir2_data_aoff_t)((char *)dup - (char *)hdr), length,
-		&needlog, &needscan);
-	/*
-	 * Initialize our new entry (at last).
-	 */
-	dep = (xfs_dir2_data_entry_t *)dup;
-	dep->inumber = cpu_to_be64(args->inumber);
-	dep->namelen = args->namelen;
-	memcpy(dep->name, args->name, dep->namelen);
-	tagp = xfs_dir2_data_entry_tag_p(dep);
-	*tagp = cpu_to_be16((char *)dep - (char *)hdr);
-	/*
-	 * Need to scan fix up the bestfree table.
-	 */
-	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
-	/*
-	 * Need to log the data block's header.
-	 */
-	if (needlog)
-		xfs_dir2_data_log_header(tp, dbp);
-	xfs_dir2_data_log_entry(tp, dbp, dep);
-	/*
-	 * If the bests table needs to be changed, do it.
-	 * Log the change unless we've already done that.
-	 */
-	if (be16_to_cpu(bestsp[use_block]) != be16_to_cpu(hdr->bestfree[0].length)) {
-		bestsp[use_block] = hdr->bestfree[0].length;
-		if (!grown)
-			xfs_dir2_leaf_log_bests(tp, lbp, use_block, use_block);
-	}
-
-	lep = xfs_dir2_leaf_find_entry(leaf, index, compact, lowstale,
-				       highstale, &lfloglow, &lfloghigh);
-
-	/*
-	 * Fill in the new leaf entry.
-	 */
-	lep->hashval = cpu_to_be32(args->hashval);
-	lep->address = cpu_to_be32(xfs_dir2_db_off_to_dataptr(mp, use_block,
-				be16_to_cpu(*tagp)));
-	/*
-	 * Log the leaf fields and give up the buffers.
-	 */
-	xfs_dir2_leaf_log_header(tp, lbp);
-	xfs_dir2_leaf_log_ents(tp, lbp, lfloglow, lfloghigh);
-	xfs_dir2_leaf_check(dp, lbp);
-	xfs_da_buf_done(lbp);
-	xfs_dir2_data_check(dp, dbp);
-	xfs_da_buf_done(dbp);
-	return 0;
-}
-
-#ifdef DEBUG
-/*
- * Check the internal consistency of a leaf1 block.
- * Pop an assert if something is wrong.
- */
-STATIC void
-xfs_dir2_leaf_check(
-	xfs_inode_t		*dp,		/* incore directory inode */
-	xfs_dabuf_t		*bp)		/* leaf's buffer */
-{
-	int			i;		/* leaf index */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail pointer */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-	int			stale;		/* count of stale leaves */
-
-	leaf = bp->data;
-	mp = dp->i_mount;
-	ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC));
-	/*
-	 * This value is not restrictive enough.
-	 * Should factor in the size of the bests table as well.
-	 * We can deduce a value for that from di_size.
-	 */
-	ASSERT(be16_to_cpu(leaf->hdr.count) <= xfs_dir2_max_leaf_ents(mp));
-	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
-	/*
-	 * Leaves and bests don't overlap.
-	 */
-	ASSERT((char *)&leaf->ents[be16_to_cpu(leaf->hdr.count)] <=
-	       (char *)xfs_dir2_leaf_bests_p(ltp));
-	/*
-	 * Check hash value order, count stale entries.
-	 */
-	for (i = stale = 0; i < be16_to_cpu(leaf->hdr.count); i++) {
-		if (i + 1 < be16_to_cpu(leaf->hdr.count))
-			ASSERT(be32_to_cpu(leaf->ents[i].hashval) <=
-			       be32_to_cpu(leaf->ents[i + 1].hashval));
-		if (leaf->ents[i].address == cpu_to_be32(XFS_DIR2_NULL_DATAPTR))
-			stale++;
-	}
-	ASSERT(be16_to_cpu(leaf->hdr.stale) == stale);
-}
-#endif	/* DEBUG */
-
-/*
- * Compact out any stale entries in the leaf.
- * Log the header and changed leaf entries, if any.
- */
-void
-xfs_dir2_leaf_compact(
-	xfs_da_args_t	*args,		/* operation arguments */
-	xfs_dabuf_t	*bp)		/* leaf buffer */
-{
-	int		from;		/* source leaf index */
-	xfs_dir2_leaf_t	*leaf;		/* leaf structure */
-	int		loglow;		/* first leaf entry to log */
-	int		to;		/* target leaf index */
-
-	leaf = bp->data;
-	if (!leaf->hdr.stale) {
-		return;
-	}
-	/*
-	 * Compress out the stale entries in place.
-	 */
-	for (from = to = 0, loglow = -1; from < be16_to_cpu(leaf->hdr.count); from++) {
-		if (leaf->ents[from].address ==
-		    cpu_to_be32(XFS_DIR2_NULL_DATAPTR))
-			continue;
-		/*
-		 * Only actually copy the entries that are different.
-		 */
-		if (from > to) {
-			if (loglow == -1)
-				loglow = to;
-			leaf->ents[to] = leaf->ents[from];
-		}
-		to++;
-	}
-	/*
-	 * Update and log the header, log the leaf entries.
-	 */
-	ASSERT(be16_to_cpu(leaf->hdr.stale) == from - to);
-	be16_add_cpu(&leaf->hdr.count, -(be16_to_cpu(leaf->hdr.stale)));
-	leaf->hdr.stale = 0;
-	xfs_dir2_leaf_log_header(args->trans, bp);
-	if (loglow != -1)
-		xfs_dir2_leaf_log_ents(args->trans, bp, loglow, to - 1);
-}
-
-/*
- * Compact the leaf entries, removing stale ones.
- * Leave one stale entry behind - the one closest to our
- * insertion index - and the caller will shift that one to our insertion
- * point later.
- * Return new insertion index, where the remaining stale entry is,
- * and leaf logging indices.
- */
-void
-xfs_dir2_leaf_compact_x1(
-	xfs_dabuf_t	*bp,		/* leaf buffer */
-	int		*indexp,	/* insertion index */
-	int		*lowstalep,	/* out: stale entry before us */
-	int		*highstalep,	/* out: stale entry after us */
-	int		*lowlogp,	/* out: low log index */
-	int		*highlogp)	/* out: high log index */
-{
-	int		from;		/* source copy index */
-	int		highstale;	/* stale entry at/after index */
-	int		index;		/* insertion index */
-	int		keepstale;	/* source index of kept stale */
-	xfs_dir2_leaf_t	*leaf;		/* leaf structure */
-	int		lowstale;	/* stale entry before index */
-	int		newindex=0;	/* new insertion index */
-	int		to;		/* destination copy index */
-
-	leaf = bp->data;
-	ASSERT(be16_to_cpu(leaf->hdr.stale) > 1);
-	index = *indexp;
-
-	xfs_dir2_leaf_find_stale(leaf, index, &lowstale, &highstale);
-
-	/*
-	 * Pick the better of lowstale and highstale.
-	 */
-	if (lowstale >= 0 &&
-	    (highstale == be16_to_cpu(leaf->hdr.count) ||
-	     index - lowstale <= highstale - index))
-		keepstale = lowstale;
-	else
-		keepstale = highstale;
-	/*
-	 * Copy the entries in place, removing all the stale entries
-	 * except keepstale.
-	 */
-	for (from = to = 0; from < be16_to_cpu(leaf->hdr.count); from++) {
-		/*
-		 * Notice the new value of index.
-		 */
-		if (index == from)
-			newindex = to;
-		if (from != keepstale &&
-		    leaf->ents[from].address ==
-		    cpu_to_be32(XFS_DIR2_NULL_DATAPTR)) {
-			if (from == to)
-				*lowlogp = to;
-			continue;
-		}
-		/*
-		 * Record the new keepstale value for the insertion.
-		 */
-		if (from == keepstale)
-			lowstale = highstale = to;
-		/*
-		 * Copy only the entries that have moved.
-		 */
-		if (from > to)
-			leaf->ents[to] = leaf->ents[from];
-		to++;
-	}
-	ASSERT(from > to);
-	/*
-	 * If the insertion point was past the last entry,
-	 * set the new insertion point accordingly.
-	 */
-	if (index == from)
-		newindex = to;
-	*indexp = newindex;
-	/*
-	 * Adjust the leaf header values.
-	 */
-	be16_add_cpu(&leaf->hdr.count, -(from - to));
-	leaf->hdr.stale = cpu_to_be16(1);
-	/*
-	 * Remember the low/high stale value only in the "right"
-	 * direction.
-	 */
-	if (lowstale >= newindex)
-		lowstale = -1;
-	else
-		highstale = be16_to_cpu(leaf->hdr.count);
-	*highlogp = be16_to_cpu(leaf->hdr.count) - 1;
-	*lowstalep = lowstale;
-	*highstalep = highstale;
-}
-
-/*
- * Getdents (readdir) for leaf and node directories.
- * This reads the data blocks only, so is the same for both forms.
- */
-int						/* error */
-xfs_dir2_leaf_getdents(
-	xfs_inode_t		*dp,		/* incore directory inode */
-	void			*dirent,
-	size_t			bufsize,
-	xfs_off_t		*offset,
-	filldir_t		filldir)
-{
-	xfs_dabuf_t		*bp;		/* data block buffer */
-	int			byteoff;	/* offset in current block */
-	xfs_dir2_db_t		curdb;		/* db for current block */
-	xfs_dir2_off_t		curoff;		/* current overall offset */
-	xfs_dir2_data_hdr_t	*hdr;		/* data block header */
-	xfs_dir2_data_entry_t	*dep;		/* data entry */
-	xfs_dir2_data_unused_t	*dup;		/* unused entry */
-	int			error = 0;	/* error return value */
-	int			i;		/* temporary loop index */
-	int			j;		/* temporary loop index */
-	int			length;		/* temporary length value */
-	xfs_bmbt_irec_t		*map;		/* map vector for blocks */
-	xfs_extlen_t		map_blocks;	/* number of fsbs in map */
-	xfs_dablk_t		map_off;	/* last mapped file offset */
-	int			map_size;	/* total entries in *map */
-	int			map_valid;	/* valid entries in *map */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-	xfs_dir2_off_t		newoff;		/* new curoff after new blk */
-	int			nmap;		/* mappings to ask xfs_bmapi */
-	char			*ptr = NULL;	/* pointer to current data */
-	int			ra_current;	/* number of read-ahead blks */
-	int			ra_index;	/* *map index for read-ahead */
-	int			ra_offset;	/* map entry offset for ra */
-	int			ra_want;	/* readahead count wanted */
-
-	/*
-	 * If the offset is at or past the largest allowed value,
-	 * give up right away.
-	 */
-	if (*offset >= XFS_DIR2_MAX_DATAPTR)
-		return 0;
-
-	mp = dp->i_mount;
-
-	/*
-	 * Set up to bmap a number of blocks based on the caller's
-	 * buffer size, the directory block size, and the filesystem
-	 * block size.
-	 */
-	map_size = howmany(bufsize + mp->m_dirblksize, mp->m_sb.sb_blocksize);
-	map = kmem_alloc(map_size * sizeof(*map), KM_SLEEP);
-	map_valid = ra_index = ra_offset = ra_current = map_blocks = 0;
-	bp = NULL;
-
-	/*
-	 * Inside the loop we keep the main offset value as a byte offset
-	 * in the directory file.
-	 */
-	curoff = xfs_dir2_dataptr_to_byte(mp, *offset);
-
-	/*
-	 * Force this conversion through db so we truncate the offset
-	 * down to get the start of the data block.
-	 */
-	map_off = xfs_dir2_db_to_da(mp, xfs_dir2_byte_to_db(mp, curoff));
-	/*
-	 * Loop over directory entries until we reach the end offset.
-	 * Get more blocks and readahead as necessary.
-	 */
-	while (curoff < XFS_DIR2_LEAF_OFFSET) {
-		/*
-		 * If we have no buffer, or we're off the end of the
-		 * current buffer, need to get another one.
-		 */
-		if (!bp || ptr >= (char *)bp->data + mp->m_dirblksize) {
-			/*
-			 * If we have a buffer, we need to release it and
-			 * take it out of the mapping.
-			 */
-			if (bp) {
-				xfs_da_brelse(NULL, bp);
-				bp = NULL;
-				map_blocks -= mp->m_dirblkfsbs;
-				/*
-				 * Loop to get rid of the extents for the
-				 * directory block.
-				 */
-				for (i = mp->m_dirblkfsbs; i > 0; ) {
-					j = MIN((int)map->br_blockcount, i);
-					map->br_blockcount -= j;
-					map->br_startblock += j;
-					map->br_startoff += j;
-					/*
-					 * If mapping is done, pitch it from
-					 * the table.
-					 */
-					if (!map->br_blockcount && --map_valid)
-						memmove(&map[0], &map[1],
-							sizeof(map[0]) *
-							map_valid);
-					i -= j;
-				}
-			}
-			/*
-			 * Recalculate the readahead blocks wanted.
-			 */
-			ra_want = howmany(bufsize + mp->m_dirblksize,
-					  mp->m_sb.sb_blocksize) - 1;
-			ASSERT(ra_want >= 0);
-
-			/*
-			 * If we don't have as many as we want, and we haven't
-			 * run out of data blocks, get some more mappings.
-			 */
-			if (1 + ra_want > map_blocks &&
-			    map_off <
-			    xfs_dir2_byte_to_da(mp, XFS_DIR2_LEAF_OFFSET)) {
-				/*
-				 * Get more bmaps, fill in after the ones
-				 * we already have in the table.
-				 */
-				nmap = map_size - map_valid;
-				error = xfs_bmapi_read(dp, map_off,
-					xfs_dir2_byte_to_da(mp,
-						XFS_DIR2_LEAF_OFFSET) - map_off,
-					&map[map_valid], &nmap, 0);
-				/*
-				 * Don't know if we should ignore this or
-				 * try to return an error.
-				 * The trouble with returning errors
-				 * is that readdir will just stop without
-				 * actually passing the error through.
-				 */
-				if (error)
-					break;	/* XXX */
-				/*
-				 * If we got all the mappings we asked for,
-				 * set the final map offset based on the
-				 * last bmap value received.
-				 * Otherwise, we've reached the end.
-				 */
-				if (nmap == map_size - map_valid)
-					map_off =
-					map[map_valid + nmap - 1].br_startoff +
-					map[map_valid + nmap - 1].br_blockcount;
-				else
-					map_off =
-						xfs_dir2_byte_to_da(mp,
-							XFS_DIR2_LEAF_OFFSET);
-				/*
-				 * Look for holes in the mapping, and
-				 * eliminate them.  Count up the valid blocks.
-				 */
-				for (i = map_valid; i < map_valid + nmap; ) {
-					if (map[i].br_startblock ==
-					    HOLESTARTBLOCK) {
-						nmap--;
-						length = map_valid + nmap - i;
-						if (length)
-							memmove(&map[i],
-								&map[i + 1],
-								sizeof(map[i]) *
-								length);
-					} else {
-						map_blocks +=
-							map[i].br_blockcount;
-						i++;
-					}
-				}
-				map_valid += nmap;
-			}
-			/*
-			 * No valid mappings, so no more data blocks.
-			 */
-			if (!map_valid) {
-				curoff = xfs_dir2_da_to_byte(mp, map_off);
-				break;
-			}
-			/*
-			 * Read the directory block starting at the first
-			 * mapping.
-			 */
-			curdb = xfs_dir2_da_to_db(mp, map->br_startoff);
-			error = xfs_da_read_buf(NULL, dp, map->br_startoff,
-				map->br_blockcount >= mp->m_dirblkfsbs ?
-				    XFS_FSB_TO_DADDR(mp, map->br_startblock) :
-				    -1,
-				&bp, XFS_DATA_FORK);
-			/*
-			 * Should just skip over the data block instead
-			 * of giving up.
-			 */
-			if (error)
-				break;	/* XXX */
-			/*
-			 * Adjust the current amount of read-ahead: we just
-			 * read a block that was previously ra.
-			 */
-			if (ra_current)
-				ra_current -= mp->m_dirblkfsbs;
-			/*
-			 * Do we need more readahead?
-			 */
-			for (ra_index = ra_offset = i = 0;
-			     ra_want > ra_current && i < map_blocks;
-			     i += mp->m_dirblkfsbs) {
-				ASSERT(ra_index < map_valid);
-				/*
-				 * Read-ahead a contiguous directory block.
-				 */
-				if (i > ra_current &&
-				    map[ra_index].br_blockcount >=
-				    mp->m_dirblkfsbs) {
-					xfs_buf_readahead(mp->m_ddev_targp,
-						XFS_FSB_TO_DADDR(mp,
-						   map[ra_index].br_startblock +
-						   ra_offset),
-						(int)BTOBB(mp->m_dirblksize));
-					ra_current = i;
-				}
-				/*
-				 * Read-ahead a non-contiguous directory block.
-				 * This doesn't use our mapping, but this
-				 * is a very rare case.
-				 */
-				else if (i > ra_current) {
-					(void)xfs_da_reada_buf(NULL, dp,
-						map[ra_index].br_startoff +
-						ra_offset, XFS_DATA_FORK);
-					ra_current = i;
-				}
-				/*
-				 * Advance offset through the mapping table.
-				 */
-				for (j = 0; j < mp->m_dirblkfsbs; j++) {
-					/*
-					 * The rest of this extent but not
-					 * more than a dir block.
-					 */
-					length = MIN(mp->m_dirblkfsbs,
-						(int)(map[ra_index].br_blockcount -
-						ra_offset));
-					j += length;
-					ra_offset += length;
-					/*
-					 * Advance to the next mapping if
-					 * this one is used up.
-					 */
-					if (ra_offset ==
-					    map[ra_index].br_blockcount) {
-						ra_offset = 0;
-						ra_index++;
-					}
-				}
-			}
-			/*
-			 * Having done a read, we need to set a new offset.
-			 */
-			newoff = xfs_dir2_db_off_to_byte(mp, curdb, 0);
-			/*
-			 * Start of the current block.
-			 */
-			if (curoff < newoff)
-				curoff = newoff;
-			/*
-			 * Make sure we're in the right block.
-			 */
-			else if (curoff > newoff)
-				ASSERT(xfs_dir2_byte_to_db(mp, curoff) ==
-				       curdb);
-			hdr = bp->data;
-			xfs_dir2_data_check(dp, bp);
-			/*
-			 * Find our position in the block.
-			 */
-			ptr = (char *)(hdr + 1);
-			byteoff = xfs_dir2_byte_to_off(mp, curoff);
-			/*
-			 * Skip past the header.
-			 */
-			if (byteoff == 0)
-				curoff += (uint)sizeof(*hdr);
-			/*
-			 * Skip past entries until we reach our offset.
-			 */
-			else {
-				while ((char *)ptr - (char *)hdr < byteoff) {
-					dup = (xfs_dir2_data_unused_t *)ptr;
-
-					if (be16_to_cpu(dup->freetag)
-						  == XFS_DIR2_DATA_FREE_TAG) {
-
-						length = be16_to_cpu(dup->length);
-						ptr += length;
-						continue;
-					}
-					dep = (xfs_dir2_data_entry_t *)ptr;
-					length =
-					   xfs_dir2_data_entsize(dep->namelen);
-					ptr += length;
-				}
-				/*
-				 * Now set our real offset.
-				 */
-				curoff =
-					xfs_dir2_db_off_to_byte(mp,
-					    xfs_dir2_byte_to_db(mp, curoff),
-					    (char *)ptr - (char *)hdr);
-				if (ptr >= (char *)hdr + mp->m_dirblksize) {
-					continue;
-				}
-			}
-		}
-		/*
-		 * We have a pointer to an entry.
-		 * Is it a live one?
-		 */
-		dup = (xfs_dir2_data_unused_t *)ptr;
-		/*
-		 * No, it's unused, skip over it.
-		 */
-		if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) {
-			length = be16_to_cpu(dup->length);
-			ptr += length;
-			curoff += length;
-			continue;
-		}
-
-		dep = (xfs_dir2_data_entry_t *)ptr;
-		length = xfs_dir2_data_entsize(dep->namelen);
-
-		if (filldir(dirent, (char *)dep->name, dep->namelen,
-			    xfs_dir2_byte_to_dataptr(mp, curoff) & 0x7fffffff,
-			    be64_to_cpu(dep->inumber), DT_UNKNOWN))
-			break;
-
-		/*
-		 * Advance to next entry in the block.
-		 */
-		ptr += length;
-		curoff += length;
-		/* bufsize may have just been a guess; don't go negative */
-		bufsize = bufsize > length ? bufsize - length : 0;
-	}
-
-	/*
-	 * All done.  Set output offset value to current offset.
-	 */
-	if (curoff > xfs_dir2_dataptr_to_byte(mp, XFS_DIR2_MAX_DATAPTR))
-		*offset = XFS_DIR2_MAX_DATAPTR & 0x7fffffff;
-	else
-		*offset = xfs_dir2_byte_to_dataptr(mp, curoff) & 0x7fffffff;
-	kmem_free(map);
-	if (bp)
-		xfs_da_brelse(NULL, bp);
-	return error;
-}
-
-/*
- * Initialize a new leaf block, leaf1 or leafn magic accepted.
- */
-int
-xfs_dir2_leaf_init(
-	xfs_da_args_t		*args,		/* operation arguments */
-	xfs_dir2_db_t		bno,		/* directory block number */
-	xfs_dabuf_t		**bpp,		/* out: leaf buffer */
-	int			magic)		/* magic number for block */
-{
-	xfs_dabuf_t		*bp;		/* leaf buffer */
-	xfs_inode_t		*dp;		/* incore directory inode */
-	int			error;		/* error return code */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-	xfs_trans_t		*tp;		/* transaction pointer */
-
-	dp = args->dp;
-	ASSERT(dp != NULL);
-	tp = args->trans;
-	mp = dp->i_mount;
-	ASSERT(bno >= XFS_DIR2_LEAF_FIRSTDB(mp) &&
-	       bno < XFS_DIR2_FREE_FIRSTDB(mp));
-	/*
-	 * Get the buffer for the block.
-	 */
-	error = xfs_da_get_buf(tp, dp, xfs_dir2_db_to_da(mp, bno), -1, &bp,
-		XFS_DATA_FORK);
-	if (error) {
-		return error;
-	}
-	ASSERT(bp != NULL);
-	leaf = bp->data;
-	/*
-	 * Initialize the header.
-	 */
-	leaf->hdr.info.magic = cpu_to_be16(magic);
-	leaf->hdr.info.forw = 0;
-	leaf->hdr.info.back = 0;
-	leaf->hdr.count = 0;
-	leaf->hdr.stale = 0;
-	xfs_dir2_leaf_log_header(tp, bp);
-	/*
-	 * If it's a leaf-format directory initialize the tail.
-	 * In this case our caller has the real bests table to copy into
-	 * the block.
-	 */
-	if (magic == XFS_DIR2_LEAF1_MAGIC) {
-		ltp = xfs_dir2_leaf_tail_p(mp, leaf);
-		ltp->bestcount = 0;
-		xfs_dir2_leaf_log_tail(tp, bp);
-	}
-	*bpp = bp;
-	return 0;
-}
-
-/*
- * Log the bests entries indicated from a leaf1 block.
- */
-static void
-xfs_dir2_leaf_log_bests(
-	xfs_trans_t		*tp,		/* transaction pointer */
-	xfs_dabuf_t		*bp,		/* leaf buffer */
-	int			first,		/* first entry to log */
-	int			last)		/* last entry to log */
-{
-	__be16			*firstb;	/* pointer to first entry */
-	__be16			*lastb;		/* pointer to last entry */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
-
-	leaf = bp->data;
-	ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC));
-	ltp = xfs_dir2_leaf_tail_p(tp->t_mountp, leaf);
-	firstb = xfs_dir2_leaf_bests_p(ltp) + first;
-	lastb = xfs_dir2_leaf_bests_p(ltp) + last;
-	xfs_da_log_buf(tp, bp, (uint)((char *)firstb - (char *)leaf),
-		(uint)((char *)lastb - (char *)leaf + sizeof(*lastb) - 1));
-}
-
-/*
- * Log the leaf entries indicated from a leaf1 or leafn block.
- */
-void
-xfs_dir2_leaf_log_ents(
-	xfs_trans_t		*tp,		/* transaction pointer */
-	xfs_dabuf_t		*bp,		/* leaf buffer */
-	int			first,		/* first entry to log */
-	int			last)		/* last entry to log */
-{
-	xfs_dir2_leaf_entry_t	*firstlep;	/* pointer to first entry */
-	xfs_dir2_leaf_entry_t	*lastlep;	/* pointer to last entry */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-
-	leaf = bp->data;
-	ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC) ||
-	       leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC));
-	firstlep = &leaf->ents[first];
-	lastlep = &leaf->ents[last];
-	xfs_da_log_buf(tp, bp, (uint)((char *)firstlep - (char *)leaf),
-		(uint)((char *)lastlep - (char *)leaf + sizeof(*lastlep) - 1));
-}
-
-/*
- * Log the header of the leaf1 or leafn block.
- */
-void
-xfs_dir2_leaf_log_header(
-	xfs_trans_t		*tp,		/* transaction pointer */
-	xfs_dabuf_t		*bp)		/* leaf buffer */
-{
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-
-	leaf = bp->data;
-	ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC) ||
-	       leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC));
-	xfs_da_log_buf(tp, bp, (uint)((char *)&leaf->hdr - (char *)leaf),
-		(uint)(sizeof(leaf->hdr) - 1));
-}
-
-/*
- * Log the tail of the leaf1 block.
- */
-STATIC void
-xfs_dir2_leaf_log_tail(
-	xfs_trans_t		*tp,		/* transaction pointer */
-	xfs_dabuf_t		*bp)		/* leaf buffer */
-{
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-
-	mp = tp->t_mountp;
-	leaf = bp->data;
-	ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC));
-	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
-	xfs_da_log_buf(tp, bp, (uint)((char *)ltp - (char *)leaf),
-		(uint)(mp->m_dirblksize - 1));
-}
-
-/*
- * Look up the entry referred to by args in the leaf format directory.
- * Most of the work is done by the xfs_dir2_leaf_lookup_int routine which
- * is also used by the node-format code.
- */
-int
-xfs_dir2_leaf_lookup(
-	xfs_da_args_t		*args)		/* operation arguments */
-{
-	xfs_dabuf_t		*dbp;		/* data block buffer */
-	xfs_dir2_data_entry_t	*dep;		/* data block entry */
-	xfs_inode_t		*dp;		/* incore directory inode */
-	int			error;		/* error return code */
-	int			index;		/* found entry index */
-	xfs_dabuf_t		*lbp;		/* leaf buffer */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
-	xfs_trans_t		*tp;		/* transaction pointer */
-
-	trace_xfs_dir2_leaf_lookup(args);
-
-	/*
-	 * Look up name in the leaf block, returning both buffers and index.
-	 */
-	if ((error = xfs_dir2_leaf_lookup_int(args, &lbp, &index, &dbp))) {
-		return error;
-	}
-	tp = args->trans;
-	dp = args->dp;
-	xfs_dir2_leaf_check(dp, lbp);
-	leaf = lbp->data;
-	/*
-	 * Get to the leaf entry and contained data entry address.
-	 */
-	lep = &leaf->ents[index];
-	/*
-	 * Point to the data entry.
-	 */
-	dep = (xfs_dir2_data_entry_t *)
-	      ((char *)dbp->data +
-	       xfs_dir2_dataptr_to_off(dp->i_mount, be32_to_cpu(lep->address)));
-	/*
-	 * Return the found inode number & CI name if appropriate
-	 */
-	args->inumber = be64_to_cpu(dep->inumber);
-	error = xfs_dir_cilookup_result(args, dep->name, dep->namelen);
-	xfs_da_brelse(tp, dbp);
-	xfs_da_brelse(tp, lbp);
-	return XFS_ERROR(error);
-}
-
-/*
- * Look up name/hash in the leaf block.
- * Fill in indexp with the found index, and dbpp with the data buffer.
- * If not found dbpp will be NULL, and ENOENT comes back.
- * lbpp will always be filled in with the leaf buffer unless there's an error.
- */
-static int					/* error */
-xfs_dir2_leaf_lookup_int(
-	xfs_da_args_t		*args,		/* operation arguments */
-	xfs_dabuf_t		**lbpp,		/* out: leaf buffer */
-	int			*indexp,	/* out: index in leaf block */
-	xfs_dabuf_t		**dbpp)		/* out: data buffer */
-{
-	xfs_dir2_db_t		curdb = -1;	/* current data block number */
-	xfs_dabuf_t		*dbp = NULL;	/* data buffer */
-	xfs_dir2_data_entry_t	*dep;		/* data entry */
-	xfs_inode_t		*dp;		/* incore directory inode */
-	int			error;		/* error return code */
-	int			index;		/* index in leaf block */
-	xfs_dabuf_t		*lbp;		/* leaf buffer */
-	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-	xfs_dir2_db_t		newdb;		/* new data block number */
-	xfs_trans_t		*tp;		/* transaction pointer */
-	xfs_dir2_db_t		cidb = -1;	/* case match data block no. */
-	enum xfs_dacmp		cmp;		/* name compare result */
-
-	dp = args->dp;
-	tp = args->trans;
-	mp = dp->i_mount;
-	/*
-	 * Read the leaf block into the buffer.
-	 */
-	error = xfs_da_read_buf(tp, dp, mp->m_dirleafblk, -1, &lbp,
-							XFS_DATA_FORK);
-	if (error)
-		return error;
-	*lbpp = lbp;
-	leaf = lbp->data;
-	xfs_dir2_leaf_check(dp, lbp);
-	/*
-	 * Look for the first leaf entry with our hash value.
-	 */
-	index = xfs_dir2_leaf_search_hash(args, lbp);
-	/*
-	 * Loop over all the entries with the right hash value
-	 * looking to match the name.
-	 */
-	for (lep = &leaf->ents[index]; index < be16_to_cpu(leaf->hdr.count) &&
-				be32_to_cpu(lep->hashval) == args->hashval;
-				lep++, index++) {
-		/*
-		 * Skip over stale leaf entries.
-		 */
-		if (be32_to_cpu(lep->address) == XFS_DIR2_NULL_DATAPTR)
-			continue;
-		/*
-		 * Get the new data block number.
-		 */
-		newdb = xfs_dir2_dataptr_to_db(mp, be32_to_cpu(lep->address));
-		/*
-		 * If it's not the same as the old data block number,
-		 * need to pitch the old one and read the new one.
-		 */
-		if (newdb != curdb) {
-			if (dbp)
-				xfs_da_brelse(tp, dbp);
-			error = xfs_da_read_buf(tp, dp,
-						xfs_dir2_db_to_da(mp, newdb),
-						-1, &dbp, XFS_DATA_FORK);
-			if (error) {
-				xfs_da_brelse(tp, lbp);
-				return error;
-			}
-			xfs_dir2_data_check(dp, dbp);
-			curdb = newdb;
-		}
-		/*
-		 * Point to the data entry.
-		 */
-		dep = (xfs_dir2_data_entry_t *)((char *)dbp->data +
-			xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address)));
-		/*
-		 * Compare name and if it's an exact match, return the index
-		 * and buffer. If it's the first case-insensitive match, store
-		 * the index and buffer and continue looking for an exact match.
-		 */
-		cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen);
-		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
-			args->cmpresult = cmp;
-			*indexp = index;
-			/* case exact match: return the current buffer. */
-			if (cmp == XFS_CMP_EXACT) {
-				*dbpp = dbp;
-				return 0;
-			}
-			cidb = curdb;
-		}
-	}
-	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
-	/*
-	 * Here, we can only be doing a lookup (not a rename or remove).
-	 * If a case-insensitive match was found earlier, re-read the
-	 * appropriate data block if required and return it.
-	 */
-	if (args->cmpresult == XFS_CMP_CASE) {
-		ASSERT(cidb != -1);
-		if (cidb != curdb) {
-			xfs_da_brelse(tp, dbp);
-			error = xfs_da_read_buf(tp, dp,
-						xfs_dir2_db_to_da(mp, cidb),
-						-1, &dbp, XFS_DATA_FORK);
-			if (error) {
-				xfs_da_brelse(tp, lbp);
-				return error;
-			}
-		}
-		*dbpp = dbp;
-		return 0;
-	}
-	/*
-	 * No match found, return ENOENT.
-	 */
-	ASSERT(cidb == -1);
-	if (dbp)
-		xfs_da_brelse(tp, dbp);
-	xfs_da_brelse(tp, lbp);
-	return XFS_ERROR(ENOENT);
-}
-
-/*
- * Remove an entry from a leaf format directory.
- */
-int						/* error */
-xfs_dir2_leaf_removename(
-	xfs_da_args_t		*args)		/* operation arguments */
-{
-	__be16			*bestsp;	/* leaf block best freespace */
-	xfs_dir2_data_hdr_t	*hdr;		/* data block header */
-	xfs_dir2_db_t		db;		/* data block number */
-	xfs_dabuf_t		*dbp;		/* data block buffer */
-	xfs_dir2_data_entry_t	*dep;		/* data entry structure */
-	xfs_inode_t		*dp;		/* incore directory inode */
-	int			error;		/* error return code */
-	xfs_dir2_db_t		i;		/* temporary data block # */
-	int			index;		/* index into leaf entries */
-	xfs_dabuf_t		*lbp;		/* leaf buffer */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
-	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-	int			needlog;	/* need to log data header */
-	int			needscan;	/* need to rescan data frees */
-	xfs_dir2_data_off_t	oldbest;	/* old value of best free */
-	xfs_trans_t		*tp;		/* transaction pointer */
-
-	trace_xfs_dir2_leaf_removename(args);
-
-	/*
-	 * Lookup the leaf entry, get the leaf and data blocks read in.
-	 */
-	if ((error = xfs_dir2_leaf_lookup_int(args, &lbp, &index, &dbp))) {
-		return error;
-	}
-	dp = args->dp;
-	tp = args->trans;
-	mp = dp->i_mount;
-	leaf = lbp->data;
-	hdr = dbp->data;
-	xfs_dir2_data_check(dp, dbp);
-	/*
-	 * Point to the leaf entry, use that to point to the data entry.
-	 */
-	lep = &leaf->ents[index];
-	db = xfs_dir2_dataptr_to_db(mp, be32_to_cpu(lep->address));
-	dep = (xfs_dir2_data_entry_t *)
-	      ((char *)hdr + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address)));
-	needscan = needlog = 0;
-	oldbest = be16_to_cpu(hdr->bestfree[0].length);
-	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
-	bestsp = xfs_dir2_leaf_bests_p(ltp);
-	ASSERT(be16_to_cpu(bestsp[db]) == oldbest);
-	/*
-	 * Mark the former data entry unused.
-	 */
-	xfs_dir2_data_make_free(tp, dbp,
-		(xfs_dir2_data_aoff_t)((char *)dep - (char *)hdr),
-		xfs_dir2_data_entsize(dep->namelen), &needlog, &needscan);
-	/*
-	 * We just mark the leaf entry stale by putting a null in it.
-	 */
-	be16_add_cpu(&leaf->hdr.stale, 1);
-	xfs_dir2_leaf_log_header(tp, lbp);
-	lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
-	xfs_dir2_leaf_log_ents(tp, lbp, index, index);
-	/*
-	 * Scan the freespace in the data block again if necessary,
-	 * log the data block header if necessary.
-	 */
-	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
-	if (needlog)
-		xfs_dir2_data_log_header(tp, dbp);
-	/*
-	 * If the longest freespace in the data block has changed,
-	 * put the new value in the bests table and log that.
-	 */
-	if (be16_to_cpu(hdr->bestfree[0].length) != oldbest) {
-		bestsp[db] = hdr->bestfree[0].length;
-		xfs_dir2_leaf_log_bests(tp, lbp, db, db);
-	}
-	xfs_dir2_data_check(dp, dbp);
-	/*
-	 * If the data block is now empty then get rid of the data block.
-	 */
-	if (be16_to_cpu(hdr->bestfree[0].length) ==
-	    mp->m_dirblksize - (uint)sizeof(*hdr)) {
-		ASSERT(db != mp->m_dirdatablk);
-		if ((error = xfs_dir2_shrink_inode(args, db, dbp))) {
-			/*
-			 * Nope, can't get rid of it because it caused
-			 * allocation of a bmap btree block to do so.
-			 * Just go on, returning success, leaving the
-			 * empty block in place.
-			 */
-			if (error == ENOSPC && args->total == 0) {
-				xfs_da_buf_done(dbp);
-				error = 0;
-			}
-			xfs_dir2_leaf_check(dp, lbp);
-			xfs_da_buf_done(lbp);
-			return error;
-		}
-		dbp = NULL;
-		/*
-		 * If this is the last data block then compact the
-		 * bests table by getting rid of entries.
-		 */
-		if (db == be32_to_cpu(ltp->bestcount) - 1) {
-			/*
-			 * Look for the last active entry (i).
-			 */
-			for (i = db - 1; i > 0; i--) {
-				if (bestsp[i] != cpu_to_be16(NULLDATAOFF))
-					break;
-			}
-			/*
-			 * Copy the table down so inactive entries at the
-			 * end are removed.
-			 */
-			memmove(&bestsp[db - i], bestsp,
-				(be32_to_cpu(ltp->bestcount) - (db - i)) * sizeof(*bestsp));
-			be32_add_cpu(&ltp->bestcount, -(db - i));
-			xfs_dir2_leaf_log_tail(tp, lbp);
-			xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
-		} else
-			bestsp[db] = cpu_to_be16(NULLDATAOFF);
-	}
-	/*
-	 * If the data block was not the first one, drop it.
-	 */
-	else if (db != mp->m_dirdatablk && dbp != NULL) {
-		xfs_da_buf_done(dbp);
-		dbp = NULL;
-	}
-	xfs_dir2_leaf_check(dp, lbp);
-	/*
-	 * See if we can convert to block form.
-	 */
-	return xfs_dir2_leaf_to_block(args, lbp, dbp);
-}
-
-/*
- * Replace the inode number in a leaf format directory entry.
- */
-int						/* error */
-xfs_dir2_leaf_replace(
-	xfs_da_args_t		*args)		/* operation arguments */
-{
-	xfs_dabuf_t		*dbp;		/* data block buffer */
-	xfs_dir2_data_entry_t	*dep;		/* data block entry */
-	xfs_inode_t		*dp;		/* incore directory inode */
-	int			error;		/* error return code */
-	int			index;		/* index of leaf entry */
-	xfs_dabuf_t		*lbp;		/* leaf buffer */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
-	xfs_trans_t		*tp;		/* transaction pointer */
-
-	trace_xfs_dir2_leaf_replace(args);
-
-	/*
-	 * Look up the entry.
-	 */
-	if ((error = xfs_dir2_leaf_lookup_int(args, &lbp, &index, &dbp))) {
-		return error;
-	}
-	dp = args->dp;
-	leaf = lbp->data;
-	/*
-	 * Point to the leaf entry, get data address from it.
-	 */
-	lep = &leaf->ents[index];
-	/*
-	 * Point to the data entry.
-	 */
-	dep = (xfs_dir2_data_entry_t *)
-	      ((char *)dbp->data +
-	       xfs_dir2_dataptr_to_off(dp->i_mount, be32_to_cpu(lep->address)));
-	ASSERT(args->inumber != be64_to_cpu(dep->inumber));
-	/*
-	 * Put the new inode number in, log it.
-	 */
-	dep->inumber = cpu_to_be64(args->inumber);
-	tp = args->trans;
-	xfs_dir2_data_log_entry(tp, dbp, dep);
-	xfs_da_buf_done(dbp);
-	xfs_dir2_leaf_check(dp, lbp);
-	xfs_da_brelse(tp, lbp);
-	return 0;
-}
-
-/*
- * Return index in the leaf block (lbp) which is either the first
- * one with this hash value, or if there are none, the insert point
- * for that hash value.
- */
-int						/* index value */
-xfs_dir2_leaf_search_hash(
-	xfs_da_args_t		*args,		/* operation arguments */
-	xfs_dabuf_t		*lbp)		/* leaf buffer */
-{
-	xfs_dahash_t		hash=0;		/* hash from this entry */
-	xfs_dahash_t		hashwant;	/* hash value looking for */
-	int			high;		/* high leaf index */
-	int			low;		/* low leaf index */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
-	int			mid=0;		/* current leaf index */
-
-	leaf = lbp->data;
-#ifndef __KERNEL__
-	if (!leaf->hdr.count)
-		return 0;
-#endif
-	/*
-	 * Note, the table cannot be empty, so we have to go through the loop.
-	 * Binary search the leaf entries looking for our hash value.
-	 */
-	for (lep = leaf->ents, low = 0, high = be16_to_cpu(leaf->hdr.count) - 1,
-		hashwant = args->hashval;
-	     low <= high; ) {
-		mid = (low + high) >> 1;
-		if ((hash = be32_to_cpu(lep[mid].hashval)) == hashwant)
-			break;
-		if (hash < hashwant)
-			low = mid + 1;
-		else
-			high = mid - 1;
-	}
-	/*
-	 * Found one, back up through all the equal hash values.
-	 */
-	if (hash == hashwant) {
-		while (mid > 0 && be32_to_cpu(lep[mid - 1].hashval) == hashwant) {
-			mid--;
-		}
-	}
-	/*
-	 * Need to point to an entry higher than ours.
-	 */
-	else if (hash < hashwant)
-		mid++;
-	return mid;
-}
-
-/*
- * Trim off a trailing data block.  We know it's empty since the leaf
- * freespace table says so.
- */
-int						/* error */
-xfs_dir2_leaf_trim_data(
-	xfs_da_args_t		*args,		/* operation arguments */
-	xfs_dabuf_t		*lbp,		/* leaf buffer */
-	xfs_dir2_db_t		db)		/* data block number */
-{
-	__be16			*bestsp;	/* leaf bests table */
-	xfs_dabuf_t		*dbp;		/* data block buffer */
-	xfs_inode_t		*dp;		/* incore directory inode */
-	int			error;		/* error return value */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_dir2_leaf_tail_t	*ltp;		/* leaf tail structure */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-	xfs_trans_t		*tp;		/* transaction pointer */
-
-	dp = args->dp;
-	mp = dp->i_mount;
-	tp = args->trans;
-	/*
-	 * Read the offending data block.  We need its buffer.
-	 */
-	if ((error = xfs_da_read_buf(tp, dp, xfs_dir2_db_to_da(mp, db), -1, &dbp,
-			XFS_DATA_FORK))) {
-		return error;
-	}
-
-	leaf = lbp->data;
-	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
-
-#ifdef DEBUG
-{
-	struct xfs_dir2_data_hdr *hdr = dbp->data;
-
-	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC));
-	ASSERT(be16_to_cpu(hdr->bestfree[0].length) ==
-	       mp->m_dirblksize - (uint)sizeof(*hdr));
-	ASSERT(db == be32_to_cpu(ltp->bestcount) - 1);
-}
-#endif
-
-	/*
-	 * Get rid of the data block.
-	 */
-	if ((error = xfs_dir2_shrink_inode(args, db, dbp))) {
-		ASSERT(error != ENOSPC);
-		xfs_da_brelse(tp, dbp);
-		return error;
-	}
-	/*
-	 * Eliminate the last bests entry from the table.
-	 */
-	bestsp = xfs_dir2_leaf_bests_p(ltp);
-	be32_add_cpu(&ltp->bestcount, -1);
-	memmove(&bestsp[1], &bestsp[0], be32_to_cpu(ltp->bestcount) * sizeof(*bestsp));
-	xfs_dir2_leaf_log_tail(tp, lbp);
-	xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
-	return 0;
-}
-
-static inline size_t
-xfs_dir2_leaf_size(
-	struct xfs_dir2_leaf_hdr	*hdr,
-	int				counts)
-{
-	int			entries;
-
-	entries = be16_to_cpu(hdr->count) - be16_to_cpu(hdr->stale);
-	return sizeof(xfs_dir2_leaf_hdr_t) +
-	    entries * sizeof(xfs_dir2_leaf_entry_t) +
-	    counts * sizeof(xfs_dir2_data_off_t) +
-	    sizeof(xfs_dir2_leaf_tail_t);
-}
-
-/*
- * Convert node form directory to leaf form directory.
- * The root of the node form dir needs to already be a LEAFN block.
- * Just return if we can't do anything.
- */
-int						/* error */
-xfs_dir2_node_to_leaf(
-	xfs_da_state_t		*state)		/* directory operation state */
-{
-	xfs_da_args_t		*args;		/* operation arguments */
-	xfs_inode_t		*dp;		/* incore directory inode */
-	int			error;		/* error return code */
-	xfs_dabuf_t		*fbp;		/* buffer for freespace block */
-	xfs_fileoff_t		fo;		/* freespace file offset */
-	xfs_dir2_free_t		*free;		/* freespace structure */
-	xfs_dabuf_t		*lbp;		/* buffer for leaf block */
-	xfs_dir2_leaf_tail_t	*ltp;		/* tail of leaf structure */
-	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-	int			rval;		/* successful free trim? */
-	xfs_trans_t		*tp;		/* transaction pointer */
-
-	/*
-	 * There's more than a leaf level in the btree, so there must
-	 * be multiple leafn blocks.  Give up.
-	 */
-	if (state->path.active > 1)
-		return 0;
-	args = state->args;
-
-	trace_xfs_dir2_node_to_leaf(args);
-
-	mp = state->mp;
-	dp = args->dp;
-	tp = args->trans;
-	/*
-	 * Get the last offset in the file.
-	 */
-	if ((error = xfs_bmap_last_offset(tp, dp, &fo, XFS_DATA_FORK))) {
-		return error;
-	}
-	fo -= mp->m_dirblkfsbs;
-	/*
-	 * If there are freespace blocks other than the first one,
-	 * take this opportunity to remove trailing empty freespace blocks
-	 * that may have been left behind during no-space-reservation
-	 * operations.
-	 */
-	while (fo > mp->m_dirfreeblk) {
-		if ((error = xfs_dir2_node_trim_free(args, fo, &rval))) {
-			return error;
-		}
-		if (rval)
-			fo -= mp->m_dirblkfsbs;
-		else
-			return 0;
-	}
-	/*
-	 * Now find the block just before the freespace block.
-	 */
-	if ((error = xfs_bmap_last_before(tp, dp, &fo, XFS_DATA_FORK))) {
-		return error;
-	}
-	/*
-	 * If it's not the single leaf block, give up.
-	 */
-	if (XFS_FSB_TO_B(mp, fo) > XFS_DIR2_LEAF_OFFSET + mp->m_dirblksize)
-		return 0;
-	lbp = state->path.blk[0].bp;
-	leaf = lbp->data;
-	ASSERT(leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC));
-	/*
-	 * Read the freespace block.
-	 */
-	if ((error = xfs_da_read_buf(tp, dp, mp->m_dirfreeblk, -1, &fbp,
-			XFS_DATA_FORK))) {
-		return error;
-	}
-	free = fbp->data;
-	ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC));
-	ASSERT(!free->hdr.firstdb);
-
-	/*
-	 * Now see if the leafn and free data will fit in a leaf1.
-	 * If not, release the buffer and give up.
-	 */
-	if (xfs_dir2_leaf_size(&leaf->hdr, be32_to_cpu(free->hdr.nvalid)) >
-			mp->m_dirblksize) {
-		xfs_da_brelse(tp, fbp);
-		return 0;
-	}
-
-	/*
-	 * If the leaf has any stale entries in it, compress them out.
-	 * The compact routine will log the header.
-	 */
-	if (be16_to_cpu(leaf->hdr.stale))
-		xfs_dir2_leaf_compact(args, lbp);
-	else
-		xfs_dir2_leaf_log_header(tp, lbp);
-	leaf->hdr.info.magic = cpu_to_be16(XFS_DIR2_LEAF1_MAGIC);
-	/*
-	 * Set up the leaf tail from the freespace block.
-	 */
-	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
-	ltp->bestcount = free->hdr.nvalid;
-	/*
-	 * Set up the leaf bests table.
-	 */
-	memcpy(xfs_dir2_leaf_bests_p(ltp), free->bests,
-		be32_to_cpu(ltp->bestcount) * sizeof(xfs_dir2_data_off_t));
-	xfs_dir2_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
-	xfs_dir2_leaf_log_tail(tp, lbp);
-	xfs_dir2_leaf_check(dp, lbp);
-	/*
-	 * Get rid of the freespace block.
-	 */
-	error = xfs_dir2_shrink_inode(args, XFS_DIR2_FREE_FIRSTDB(mp), fbp);
-	if (error) {
-		/*
-		 * This can't fail here because it can only happen when
-		 * punching out the middle of an extent, and this is an
-		 * isolated block.
-		 */
-		ASSERT(error != ENOSPC);
-		return error;
-	}
-	fbp = NULL;
-	/*
-	 * Now see if we can convert the single-leaf directory
-	 * down to a block form directory.
-	 * This routine always kills the dabuf for the leaf, so
-	 * eliminate it from the path.
-	 */
-	error = xfs_dir2_leaf_to_block(args, lbp, NULL);
-	state->path.blk[0].bp = NULL;
-	return error;
-}