[XFS] Remove version 1 directory code. Never functioned on Linux, just

pure bloat.

SGI-PV: 952969
SGI-Modid: xfs-linux-melb:xfs-kern:26251a

Signed-off-by: Nathan Scott <nathans@sgi.com>

1 files changed, 0 insertions, 231 deletions

diff --git a/fs/xfs/xfs_dir_leaf.h b/fs/xfs/xfs_dir_leaf.h
index 7ca5845195d5..e69de29bb2d1 100644
--- a/fs/xfs/xfs_dir_leaf.h
+++ b/fs/xfs/xfs_dir_leaf.h
@@ -1,231 +0,0 @@
-/*
- * Copyright (c) 2000-2001,2005 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
- */
-#ifndef __XFS_DIR_LEAF_H__
-#define	__XFS_DIR_LEAF_H__
-
-/*
- * Directory layout, internal structure, access macros, etc.
- *
- * Large directories are structured around Btrees where all the data
- * elements are in the leaf nodes.  Filenames are hashed into an int,
- * then that int is used as the index into the Btree.  Since the hashval
- * of a filename may not be unique, we may have duplicate keys.  The
- * internal links in the Btree are logical block offsets into the file.
- */
-
-struct uio;
-struct xfs_bmap_free;
-struct xfs_dabuf;
-struct xfs_da_args;
-struct xfs_da_state;
-struct xfs_da_state_blk;
-struct xfs_dir_put_args;
-struct xfs_inode;
-struct xfs_mount;
-struct xfs_trans;
-
-/*========================================================================
- * Directory Structure when equal to XFS_LBSIZE(mp) bytes.
- *========================================================================*/
-
-/*
- * This is the structure of the leaf nodes in the Btree.
- *
- * Struct leaf_entry's are packed from the top.  Names grow from the bottom
- * but are not packed.  The freemap contains run-length-encoded entries
- * for the free bytes after the leaf_entry's, but only the N largest such,
- * smaller runs are dropped.  When the freemap doesn't show enough space
- * for an allocation, we compact the namelist area and try again.  If we
- * still don't have enough space, then we have to split the block.
- *
- * Since we have duplicate hash keys, for each key that matches, compare
- * the actual string.  The root and intermediate node search always takes
- * the first-in-the-block key match found, so we should only have to work
- * "forw"ard.  If none matches, continue with the "forw"ard leaf nodes
- * until the hash key changes or the filename is found.
- *
- * The parent directory and the self-pointer are explicitly represented
- * (ie: there are entries for "." and "..").
- *
- * Note that the count being a __uint16_t limits us to something like a
- * blocksize of 1.3MB in the face of worst case (short) filenames.
- */
-#define XFS_DIR_LEAF_MAPSIZE	3	/* how many freespace slots */
-
-typedef struct xfs_dir_leaf_map {	/* RLE map of free bytes */
-	__be16		base;	 	/* base of free region */
-	__be16		size; 		/* run length of free region */
-} xfs_dir_leaf_map_t;
-
-typedef struct xfs_dir_leaf_hdr {	/* constant-structure header block */
-	xfs_da_blkinfo_t info;		/* block type, links, etc. */
-	__be16		count;		/* count of active leaf_entry's */
-	__be16		namebytes;	/* num bytes of name strings stored */
-	__be16		firstused;	/* first used byte in name area */
-	__u8		holes;		/* != 0 if blk needs compaction */
-	__u8		pad1;
-	xfs_dir_leaf_map_t freemap[XFS_DIR_LEAF_MAPSIZE];
-} xfs_dir_leaf_hdr_t;
-
-typedef struct xfs_dir_leaf_entry {	/* sorted on key, not name */
-	__be32		hashval;	/* hash value of name */
-	__be16		nameidx;	/* index into buffer of name */
-	__u8		namelen;	/* length of name string */
-	__u8		pad2;
-} xfs_dir_leaf_entry_t;
-
-typedef struct xfs_dir_leaf_name {
-	xfs_dir_ino_t	inumber;	/* inode number for this key */
-	__uint8_t	name[1];	/* name string itself */
-} xfs_dir_leaf_name_t;
-
-typedef struct xfs_dir_leafblock {
-	xfs_dir_leaf_hdr_t	hdr;	/* constant-structure header block */
-	xfs_dir_leaf_entry_t	entries[1];	/* var sized array */
-	xfs_dir_leaf_name_t	namelist[1];	/* grows from bottom of buf */
-} xfs_dir_leafblock_t;
-
-/*
- * Length of name for which a 512-byte block filesystem
- * can get a double split.
- */
-#define	XFS_DIR_LEAF_CAN_DOUBLE_SPLIT_LEN	\
-	(512 - (uint)sizeof(xfs_dir_leaf_hdr_t) - \
-	 (uint)sizeof(xfs_dir_leaf_entry_t) * 2 - \
-	 (uint)sizeof(xfs_dir_leaf_name_t) * 2 - (MAXNAMELEN - 2) + 1 + 1)
-
-typedef int (*xfs_dir_put_t)(struct xfs_dir_put_args *pa);
-
-typedef union {
-	xfs_off_t		o;		/* offset (cookie) */
-	/*
-	 * Watch the order here (endian-ness dependent).
-	 */
-	struct {
-#ifndef XFS_NATIVE_HOST
-		xfs_dahash_t	h;	/* hash value */
-		__uint32_t	be;	/* block and entry */
-#else
-		__uint32_t	be;	/* block and entry */
-		xfs_dahash_t	h;	/* hash value */
-#endif /* XFS_NATIVE_HOST */
-	} s;
-} xfs_dircook_t;
-
-#define	XFS_PUT_COOKIE(c,mp,bno,entry,hash)	\
-	((c).s.be = XFS_DA_MAKE_BNOENTRY(mp, bno, entry), (c).s.h = (hash))
-
-typedef struct xfs_dir_put_args {
-	xfs_dircook_t	cook;		/* cookie of (next) entry */
-	xfs_intino_t	ino;		/* inode number */
-	struct xfs_dirent *dbp;		/* buffer pointer */
-	char		*name;		/* directory entry name */
-	int		namelen;	/* length of name */
-	int		done;		/* output: set if value was stored */
-	xfs_dir_put_t	put;		/* put function ptr (i/o) */
-	struct uio	*uio;		/* uio control structure */
-} xfs_dir_put_args_t;
-
-#define XFS_DIR_LEAF_ENTSIZE_BYNAME(len)	\
-	xfs_dir_leaf_entsize_byname(len)
-static inline int xfs_dir_leaf_entsize_byname(int len)
-{
-	return (uint)sizeof(xfs_dir_leaf_name_t)-1 + len;
-}
-
-#define XFS_DIR_LEAF_ENTSIZE_BYENTRY(entry)	\
-	xfs_dir_leaf_entsize_byentry(entry)
-static inline int xfs_dir_leaf_entsize_byentry(xfs_dir_leaf_entry_t *entry)
-{
-	return (uint)sizeof(xfs_dir_leaf_name_t)-1 + (entry)->namelen;
-}
-
-#define XFS_DIR_LEAF_NAMESTRUCT(leafp,offset)	\
-	xfs_dir_leaf_namestruct(leafp,offset)
-static inline xfs_dir_leaf_name_t *
-xfs_dir_leaf_namestruct(xfs_dir_leafblock_t *leafp, int offset)
-{
-	return (xfs_dir_leaf_name_t *)&((char *)(leafp))[offset];
-}
-
-/*========================================================================
- * Function prototypes for the kernel.
- *========================================================================*/
-
-/*
- * Internal routines when dirsize < XFS_LITINO(mp).
- */
-int xfs_dir_shortform_create(struct xfs_da_args *args, xfs_ino_t parent);
-int xfs_dir_shortform_addname(struct xfs_da_args *args);
-int xfs_dir_shortform_lookup(struct xfs_da_args *args);
-int xfs_dir_shortform_to_leaf(struct xfs_da_args *args);
-int xfs_dir_shortform_removename(struct xfs_da_args *args);
-int xfs_dir_shortform_getdents(struct xfs_inode *dp, struct uio *uio, int *eofp,
-			       struct xfs_dirent *dbp, xfs_dir_put_t put);
-int xfs_dir_shortform_replace(struct xfs_da_args *args);
-
-/*
- * Internal routines when dirsize == XFS_LBSIZE(mp).
- */
-int xfs_dir_leaf_to_node(struct xfs_da_args *args);
-int xfs_dir_leaf_to_shortform(struct xfs_da_args *args);
-
-/*
- * Routines used for growing the Btree.
- */
-int	xfs_dir_leaf_split(struct xfs_da_state *state,
-				  struct xfs_da_state_blk *oldblk,
-				  struct xfs_da_state_blk *newblk);
-int	xfs_dir_leaf_add(struct xfs_dabuf *leaf_buffer,
-				struct xfs_da_args *args, int insertion_index);
-int	xfs_dir_leaf_addname(struct xfs_da_args *args);
-int	xfs_dir_leaf_lookup_int(struct xfs_dabuf *leaf_buffer,
-				       struct xfs_da_args *args,
-				       int *index_found_at);
-int	xfs_dir_leaf_remove(struct xfs_trans *trans,
-				   struct xfs_dabuf *leaf_buffer,
-				   int index_to_remove);
-int	xfs_dir_leaf_getdents_int(struct xfs_dabuf *bp, struct xfs_inode *dp,
-					 xfs_dablk_t bno, struct uio *uio,
-					 int *eobp, struct xfs_dirent *dbp,
-					 xfs_dir_put_t put, xfs_daddr_t nextda);
-
-/*
- * Routines used for shrinking the Btree.
- */
-int	xfs_dir_leaf_toosmall(struct xfs_da_state *state, int *retval);
-void	xfs_dir_leaf_unbalance(struct xfs_da_state *state,
-					     struct xfs_da_state_blk *drop_blk,
-					     struct xfs_da_state_blk *save_blk);
-
-/*
- * Utility routines.
- */
-uint	xfs_dir_leaf_lasthash(struct xfs_dabuf *bp, int *count);
-int	xfs_dir_leaf_order(struct xfs_dabuf *leaf1_bp,
-				  struct xfs_dabuf *leaf2_bp);
-int	xfs_dir_put_dirent64_direct(xfs_dir_put_args_t *pa);
-int	xfs_dir_put_dirent64_uio(xfs_dir_put_args_t *pa);
-int	xfs_dir_ino_validate(struct xfs_mount *mp, xfs_ino_t ino);
-
-/*
- * Global data.
- */
-extern xfs_dahash_t	xfs_dir_hash_dot, xfs_dir_hash_dotdot;
-
-#endif /* __XFS_DIR_LEAF_H__ */