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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
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. | |
1da177e4 | 13 | * |
7b718769 NS |
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 | |
1da177e4 LT |
17 | */ |
18 | #ifndef __XFS_DIR2_H__ | |
57926640 | 19 | #define __XFS_DIR2_H__ |
1da177e4 | 20 | |
f6c2d1fa | 21 | struct xfs_bmap_free; |
57926640 | 22 | struct xfs_da_args; |
1da177e4 | 23 | struct xfs_inode; |
f6c2d1fa | 24 | struct xfs_mount; |
1da177e4 | 25 | struct xfs_trans; |
2b9ab5ab DC |
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; | |
1da177e4 | 31 | |
556b8b16 BN |
32 | extern struct xfs_name xfs_name_dotdot; |
33 | ||
32c5483a DC |
34 | /* |
35 | * directory operations vector for encode/decode routines | |
36 | */ | |
37 | struct xfs_dir_ops { | |
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); | |
42 | }; | |
43 | ||
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; | |
47 | ||
1da177e4 | 48 | /* |
f6c2d1fa NS |
49 | * Generic directory interface routines |
50 | */ | |
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, | |
556b8b16 | 57 | struct xfs_name *name, xfs_ino_t inum, |
f6c2d1fa NS |
58 | xfs_fsblock_t *first, |
59 | struct xfs_bmap_free *flist, xfs_extlen_t tot); | |
60 | extern int xfs_dir_lookup(struct xfs_trans *tp, struct xfs_inode *dp, | |
384f3ced BN |
61 | struct xfs_name *name, xfs_ino_t *inum, |
62 | struct xfs_name *ci_name); | |
f6c2d1fa | 63 | extern int xfs_dir_removename(struct xfs_trans *tp, struct xfs_inode *dp, |
556b8b16 | 64 | struct xfs_name *name, xfs_ino_t ino, |
f6c2d1fa NS |
65 | xfs_fsblock_t *first, |
66 | struct xfs_bmap_free *flist, xfs_extlen_t tot); | |
f6c2d1fa | 67 | extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp, |
556b8b16 | 68 | struct xfs_name *name, xfs_ino_t inum, |
f6c2d1fa NS |
69 | xfs_fsblock_t *first, |
70 | struct xfs_bmap_free *flist, xfs_extlen_t tot); | |
71 | extern int xfs_dir_canenter(struct xfs_trans *tp, struct xfs_inode *dp, | |
556b8b16 | 72 | struct xfs_name *name, uint resblks); |
f6c2d1fa NS |
73 | |
74 | /* | |
57926640 | 75 | * Direct call from the bmap code, bypassing the generic directory layer. |
1da177e4 | 76 | */ |
57926640 | 77 | extern int xfs_dir2_sf_to_block(struct xfs_da_args *args); |
384f3ced | 78 | |
2b9ab5ab DC |
79 | /* |
80 | * Interface routines used by userspace utilities | |
81 | */ | |
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, | |
84 | xfs_ino_t ino); | |
0cb97766 DC |
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); | |
50fc5f7a DC |
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, | |
89 | xfs_ino_t ino); | |
2b9ab5ab DC |
90 | |
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, | |
94 | struct xfs_buf *bp); | |
95 | ||
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, | |
101 | struct xfs_buf *bp); | |
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); | |
110 | ||
111 | extern struct xfs_dir2_data_free *xfs_dir2_data_freefind( | |
112 | struct xfs_dir2_data_hdr *hdr, struct xfs_dir2_data_unused *dup); | |
113 | ||
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; | |
119 | ||
1da177e4 | 120 | #endif /* __XFS_DIR2_H__ */ |