2 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 #ifndef __XFS_DIR2_H__
19 #define __XFS_DIR2_H__
26 struct xfs_dir2_sf_hdr
;
27 struct xfs_dir2_sf_entry
;
28 struct xfs_dir2_data_hdr
;
29 struct xfs_dir2_data_entry
;
30 struct xfs_dir2_data_unused
;
32 extern struct xfs_name xfs_name_dotdot
;
35 * directory operations vector for encode/decode routines
38 int (*sf_entsize
)(struct xfs_dir2_sf_hdr
*hdr
, int len
);
39 struct xfs_dir2_sf_entry
*
40 (*sf_nextentry
)(struct xfs_dir2_sf_hdr
*hdr
,
41 struct xfs_dir2_sf_entry
*sfep
);
44 extern const struct xfs_dir_ops xfs_dir2_ops
;
45 extern const struct xfs_dir_ops xfs_dir2_ftype_ops
;
46 extern const struct xfs_dir_ops xfs_dir3_ops
;
49 * Generic directory interface routines
51 extern void xfs_dir_startup(void);
52 extern void xfs_dir_mount(struct xfs_mount
*mp
);
53 extern int xfs_dir_isempty(struct xfs_inode
*dp
);
54 extern int xfs_dir_init(struct xfs_trans
*tp
, struct xfs_inode
*dp
,
55 struct xfs_inode
*pdp
);
56 extern int xfs_dir_createname(struct xfs_trans
*tp
, struct xfs_inode
*dp
,
57 struct xfs_name
*name
, xfs_ino_t inum
,
59 struct xfs_bmap_free
*flist
, xfs_extlen_t tot
);
60 extern int xfs_dir_lookup(struct xfs_trans
*tp
, struct xfs_inode
*dp
,
61 struct xfs_name
*name
, xfs_ino_t
*inum
,
62 struct xfs_name
*ci_name
);
63 extern int xfs_dir_removename(struct xfs_trans
*tp
, struct xfs_inode
*dp
,
64 struct xfs_name
*name
, xfs_ino_t ino
,
66 struct xfs_bmap_free
*flist
, xfs_extlen_t tot
);
67 extern int xfs_dir_replace(struct xfs_trans
*tp
, struct xfs_inode
*dp
,
68 struct xfs_name
*name
, xfs_ino_t inum
,
70 struct xfs_bmap_free
*flist
, xfs_extlen_t tot
);
71 extern int xfs_dir_canenter(struct xfs_trans
*tp
, struct xfs_inode
*dp
,
72 struct xfs_name
*name
, uint resblks
);
75 * Direct call from the bmap code, bypassing the generic directory layer.
77 extern int xfs_dir2_sf_to_block(struct xfs_da_args
*args
);
80 * Interface routines used by userspace utilities
82 extern xfs_ino_t
xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr
*sfp
);
83 extern void xfs_dir2_sf_put_parent_ino(struct xfs_dir2_sf_hdr
*sfp
,
85 extern xfs_ino_t
xfs_dir3_sfe_get_ino(struct xfs_mount
*mp
,
86 struct xfs_dir2_sf_hdr
*sfp
, struct xfs_dir2_sf_entry
*sfep
);
87 extern void xfs_dir3_sfe_put_ino(struct xfs_mount
*mp
,
88 struct xfs_dir2_sf_hdr
*hdr
, struct xfs_dir2_sf_entry
*sfep
,
91 extern int xfs_dir2_isblock(struct xfs_trans
*tp
, struct xfs_inode
*dp
, int *r
);
92 extern int xfs_dir2_isleaf(struct xfs_trans
*tp
, struct xfs_inode
*dp
, int *r
);
93 extern int xfs_dir2_shrink_inode(struct xfs_da_args
*args
, xfs_dir2_db_t db
,
96 extern void xfs_dir2_data_freescan(struct xfs_mount
*mp
,
97 struct xfs_dir2_data_hdr
*hdr
, int *loghead
);
98 extern void xfs_dir2_data_log_entry(struct xfs_trans
*tp
, struct xfs_buf
*bp
,
99 struct xfs_dir2_data_entry
*dep
);
100 extern void xfs_dir2_data_log_header(struct xfs_trans
*tp
,
102 extern void xfs_dir2_data_log_unused(struct xfs_trans
*tp
, struct xfs_buf
*bp
,
103 struct xfs_dir2_data_unused
*dup
);
104 extern void xfs_dir2_data_make_free(struct xfs_trans
*tp
, struct xfs_buf
*bp
,
105 xfs_dir2_data_aoff_t offset
, xfs_dir2_data_aoff_t len
,
106 int *needlogp
, int *needscanp
);
107 extern void xfs_dir2_data_use_free(struct xfs_trans
*tp
, struct xfs_buf
*bp
,
108 struct xfs_dir2_data_unused
*dup
, xfs_dir2_data_aoff_t offset
,
109 xfs_dir2_data_aoff_t len
, int *needlogp
, int *needscanp
);
111 extern struct xfs_dir2_data_free
*xfs_dir2_data_freefind(
112 struct xfs_dir2_data_hdr
*hdr
, struct xfs_dir2_data_unused
*dup
);
114 extern const struct xfs_buf_ops xfs_dir3_block_buf_ops
;
115 extern const struct xfs_buf_ops xfs_dir3_leafn_buf_ops
;
116 extern const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops
;
117 extern const struct xfs_buf_ops xfs_dir3_free_buf_ops
;
118 extern const struct xfs_buf_ops xfs_dir3_data_buf_ops
;
120 #endif /* __XFS_DIR2_H__ */