xfs: reshuffle dir2 headers

Replace the current mess of dir2 headers with just three that have a clear
purpose:

 - xfs_dir2_format.h for all format definitions, including the inline helpers
   to access our variable size structures
 - xfs_dir2_priv.h for all prototypes that are internal to the dir2 code
   and not needed by anything outside of the directory code.  For this
   purpose xfs_da_btree.c, and phase6.c in xfs_repair are considered part
   of the directory code.
 - xfs_dir2.h for the public interface to the directory code

In addition to the reshuffle I have also update the comments to not only
match the new file structure, but also to describe the directory format
better.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

1 files changed, 4 insertions, 50 deletions

diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index 74a3b105768..e937d9991c1 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -16,49 +16,14 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #ifndef __XFS_DIR2_H__
-#define	__XFS_DIR2_H__
+#define __XFS_DIR2_H__
 
-struct uio;
-struct xfs_dabuf;
-struct xfs_da_args;
-struct xfs_dir2_put_args;
 struct xfs_bmap_free;
+struct xfs_da_args;
 struct xfs_inode;
 struct xfs_mount;
 struct xfs_trans;
 
-/*
- * Directory version 2.
- * There are 4 possible formats:
- *	shortform
- *	single block - data with embedded leaf at the end
- *	multiple data blocks, single leaf+freeindex block
- *	data blocks, node&leaf blocks (btree), freeindex blocks
- *
- *	The shortform format is in xfs_dir2_sf.h.
- *	The single block format is in xfs_dir2_block.h.
- *	The data block format is in xfs_dir2_data.h.
- *	The leaf and freeindex block formats are in xfs_dir2_leaf.h.
- *	Node blocks are the same as the other version, in xfs_da_btree.h.
- */
-
-/*
- * Byte offset in data block and shortform entry.
- */
-typedef	__uint16_t	xfs_dir2_data_off_t;
-#define	NULLDATAOFF	0xffffU
-typedef uint		xfs_dir2_data_aoff_t;	/* argument form */
-
-/*
- * Directory block number (logical dirblk in file)
- */
-typedef	__uint32_t	xfs_dir2_db_t;
-
-/*
- * Byte offset in a directory.
- */
-typedef	xfs_off_t	xfs_dir2_off_t;
-
 extern struct xfs_name	xfs_name_dotdot;
 
 /*
@@ -86,21 +51,10 @@ extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp,
 				struct xfs_bmap_free *flist, xfs_extlen_t tot);
 extern int xfs_dir_canenter(struct xfs_trans *tp, struct xfs_inode *dp,
 				struct xfs_name *name, uint resblks);
-extern int xfs_dir_ino_validate(struct xfs_mount *mp, xfs_ino_t ino);
 
 /*
- * Utility routines for v2 directories.
+ * Direct call from the bmap code, bypassing the generic directory layer.
  */
-extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
-				xfs_dir2_db_t *dbp);
-extern int xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp,
-				int *vp);
-extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp,
-				int *vp);
-extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
-				struct xfs_dabuf *bp);
-
-extern int xfs_dir_cilookup_result(struct xfs_da_args *args,
-				const unsigned char *name, int len);
+extern int xfs_dir2_sf_to_block(struct xfs_da_args *args);
 
 #endif	/* __XFS_DIR2_H__ */