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7acf15bf | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
a2ceac1f DC |
2 | /* |
3 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. | |
4 | * All Rights Reserved. | |
a2ceac1f DC |
5 | */ |
6 | #ifndef __XFS_DIR2_PRIV_H__ | |
7 | #define __XFS_DIR2_PRIV_H__ | |
8 | ||
494434d7 DC |
9 | struct dir_context; |
10 | ||
bd045c51 CH |
11 | /* |
12 | * In-core version of the leaf and free block headers to abstract the | |
13 | * differences in the v2 and v3 disk format of the headers. | |
14 | */ | |
15 | struct xfs_dir3_icleaf_hdr { | |
16 | uint32_t forw; | |
17 | uint32_t back; | |
18 | uint16_t magic; | |
19 | uint16_t count; | |
20 | uint16_t stale; | |
a2279497 CH |
21 | |
22 | /* | |
23 | * Pointer to the on-disk format entries, which are behind the | |
24 | * variable size (v4 vs v5) header in the on-disk block. | |
25 | */ | |
26 | struct xfs_dir2_leaf_entry *ents; | |
bd045c51 CH |
27 | }; |
28 | ||
29 | struct xfs_dir3_icfree_hdr { | |
30 | uint32_t magic; | |
31 | uint32_t firstdb; | |
32 | uint32_t nvalid; | |
33 | uint32_t nused; | |
cb5d1930 CH |
34 | |
35 | /* | |
36 | * Pointer to the on-disk format entries, which are behind the | |
37 | * variable size (v4 vs v5) header in the on-disk block. | |
38 | */ | |
39 | __be16 *bests; | |
bd045c51 CH |
40 | }; |
41 | ||
a2ceac1f | 42 | /* xfs_dir2.c */ |
c331b654 | 43 | xfs_dahash_t xfs_ascii_ci_hashname(const struct xfs_name *name); |
e169cc9b CH |
44 | enum xfs_dacmp xfs_ascii_ci_compname(struct xfs_da_args *args, |
45 | const unsigned char *name, int len); | |
a2ceac1f DC |
46 | extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space, |
47 | xfs_dir2_db_t *dbp); | |
a2ceac1f DC |
48 | extern int xfs_dir_cilookup_result(struct xfs_da_args *args, |
49 | const unsigned char *name, int len); | |
50 | ||
494434d7 | 51 | |
a2ceac1f | 52 | /* xfs_dir2_block.c */ |
482abce5 DW |
53 | int xfs_dir3_block_read(struct xfs_trans *tp, struct xfs_inode *dp, |
54 | xfs_ino_t owner, struct xfs_buf **bpp); | |
a2ceac1f | 55 | extern int xfs_dir2_block_addname(struct xfs_da_args *args); |
a2ceac1f DC |
56 | extern int xfs_dir2_block_lookup(struct xfs_da_args *args); |
57 | extern int xfs_dir2_block_removename(struct xfs_da_args *args); | |
58 | extern int xfs_dir2_block_replace(struct xfs_da_args *args); | |
59 | extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args, | |
60 | struct xfs_buf *lbp, struct xfs_buf *dbp); | |
61 | ||
62 | /* xfs_dir2_data.c */ | |
04f6f354 CH |
63 | struct xfs_dir2_data_free *xfs_dir2_data_bestfree_p(struct xfs_mount *mp, |
64 | struct xfs_dir2_data_hdr *hdr); | |
823711f2 CH |
65 | __be16 *xfs_dir2_data_entry_tag_p(struct xfs_mount *mp, |
66 | struct xfs_dir2_data_entry *dep); | |
28e6e614 CH |
67 | uint8_t xfs_dir2_data_get_ftype(struct xfs_mount *mp, |
68 | struct xfs_dir2_data_entry *dep); | |
69 | void xfs_dir2_data_put_ftype(struct xfs_mount *mp, | |
70 | struct xfs_dir2_data_entry *dep, uint8_t ftype); | |
271a654f | 71 | |
a2ceac1f | 72 | #ifdef DEBUG |
bc01119d | 73 | extern void xfs_dir3_data_check(struct xfs_inode *dp, struct xfs_buf *bp); |
a2ceac1f | 74 | #else |
90ea28c3 | 75 | #define xfs_dir3_data_check(dp,bp) |
a2ceac1f DC |
76 | #endif |
77 | ||
bc01119d DW |
78 | extern xfs_failaddr_t __xfs_dir3_data_check(struct xfs_inode *dp, |
79 | struct xfs_buf *bp); | |
5f356ae6 | 80 | int xfs_dir3_data_read(struct xfs_trans *tp, struct xfs_inode *dp, |
72386ff0 DW |
81 | xfs_ino_t owner, xfs_dablk_t bno, unsigned int flags, |
82 | struct xfs_buf **bpp); | |
c6c4bbf3 CH |
83 | int xfs_dir3_data_readahead(struct xfs_inode *dp, xfs_dablk_t bno, |
84 | unsigned int flags); | |
a2ceac1f DC |
85 | |
86 | extern struct xfs_dir2_data_free * | |
87 | xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr, | |
ff105f75 DC |
88 | struct xfs_dir2_data_free *bf, struct xfs_dir2_data_unused *dup, |
89 | int *loghead); | |
693fc8f6 | 90 | extern int xfs_dir3_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno, |
a2ceac1f | 91 | struct xfs_buf **bpp); |
a2ceac1f DC |
92 | |
93 | /* xfs_dir2_leaf.c */ | |
9db68faf CH |
94 | void xfs_dir2_leaf_hdr_from_disk(struct xfs_mount *mp, |
95 | struct xfs_dir3_icleaf_hdr *to, struct xfs_dir2_leaf *from); | |
7adfbcf6 CH |
96 | void xfs_dir2_leaf_hdr_to_disk(struct xfs_mount *mp, struct xfs_dir2_leaf *to, |
97 | struct xfs_dir3_icleaf_hdr *from); | |
0939d90b | 98 | int xfs_dir3_leaf_read(struct xfs_trans *tp, struct xfs_inode *dp, |
17e0d66d | 99 | xfs_ino_t owner, xfs_dablk_t fbno, struct xfs_buf **bpp); |
5fcb9cbc | 100 | int xfs_dir3_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp, |
17e0d66d | 101 | xfs_ino_t owner, xfs_dablk_t fbno, struct xfs_buf **bpp); |
a2ceac1f DC |
102 | extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args, |
103 | struct xfs_buf *dbp); | |
104 | extern int xfs_dir2_leaf_addname(struct xfs_da_args *args); | |
65b80c98 DC |
105 | extern void xfs_dir3_leaf_compact(struct xfs_da_args *args, |
106 | struct xfs_dir3_icleaf_hdr *leafhdr, struct xfs_buf *bp); | |
107 | extern void xfs_dir3_leaf_compact_x1(struct xfs_dir3_icleaf_hdr *leafhdr, | |
108 | struct xfs_dir2_leaf_entry *ents, int *indexp, | |
a2ceac1f | 109 | int *lowstalep, int *highstalep, int *lowlogp, int *highlogp); |
65b80c98 | 110 | extern int xfs_dir3_leaf_get_buf(struct xfs_da_args *args, xfs_dir2_db_t bno, |
4a492e72 | 111 | struct xfs_buf **bpp, uint16_t magic); |
ff105f75 | 112 | extern void xfs_dir3_leaf_log_ents(struct xfs_da_args *args, |
a2279497 CH |
113 | struct xfs_dir3_icleaf_hdr *hdr, struct xfs_buf *bp, int first, |
114 | int last); | |
ff105f75 | 115 | extern void xfs_dir3_leaf_log_header(struct xfs_da_args *args, |
a2ceac1f DC |
116 | struct xfs_buf *bp); |
117 | extern int xfs_dir2_leaf_lookup(struct xfs_da_args *args); | |
118 | extern int xfs_dir2_leaf_removename(struct xfs_da_args *args); | |
119 | extern int xfs_dir2_leaf_replace(struct xfs_da_args *args); | |
120 | extern int xfs_dir2_leaf_search_hash(struct xfs_da_args *args, | |
121 | struct xfs_buf *lbp); | |
122 | extern int xfs_dir2_leaf_trim_data(struct xfs_da_args *args, | |
123 | struct xfs_buf *lbp, xfs_dir2_db_t db); | |
124 | extern struct xfs_dir2_leaf_entry * | |
65b80c98 DC |
125 | xfs_dir3_leaf_find_entry(struct xfs_dir3_icleaf_hdr *leafhdr, |
126 | struct xfs_dir2_leaf_entry *ents, int index, int compact, | |
127 | int lowstale, int highstale, int *lfloglow, int *lfloghigh); | |
a2ceac1f DC |
128 | extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state); |
129 | ||
bc01119d | 130 | extern xfs_failaddr_t xfs_dir3_leaf_check_int(struct xfs_mount *mp, |
f5e56725 DC |
131 | struct xfs_dir3_icleaf_hdr *hdr, struct xfs_dir2_leaf *leaf, |
132 | bool expensive_checks); | |
65b80c98 | 133 | |
a2ceac1f | 134 | /* xfs_dir2_node.c */ |
61e2142e CH |
135 | void xfs_dir2_free_hdr_from_disk(struct xfs_mount *mp, |
136 | struct xfs_dir3_icfree_hdr *to, struct xfs_dir2_free *from); | |
a2ceac1f DC |
137 | extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args, |
138 | struct xfs_buf *lbp); | |
94ffb80a | 139 | extern xfs_dahash_t xfs_dir2_leaf_lasthash(struct xfs_inode *dp, |
ff105f75 | 140 | struct xfs_buf *bp, int *count); |
a2ceac1f DC |
141 | extern int xfs_dir2_leafn_lookup_int(struct xfs_buf *bp, |
142 | struct xfs_da_args *args, int *indexp, | |
143 | struct xfs_da_state *state); | |
ff105f75 | 144 | extern int xfs_dir2_leafn_order(struct xfs_inode *dp, struct xfs_buf *leaf1_bp, |
a2ceac1f DC |
145 | struct xfs_buf *leaf2_bp); |
146 | extern int xfs_dir2_leafn_split(struct xfs_da_state *state, | |
147 | struct xfs_da_state_blk *oldblk, struct xfs_da_state_blk *newblk); | |
148 | extern int xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action); | |
149 | extern void xfs_dir2_leafn_unbalance(struct xfs_da_state *state, | |
150 | struct xfs_da_state_blk *drop_blk, | |
151 | struct xfs_da_state_blk *save_blk); | |
152 | extern int xfs_dir2_node_addname(struct xfs_da_args *args); | |
153 | extern int xfs_dir2_node_lookup(struct xfs_da_args *args); | |
154 | extern int xfs_dir2_node_removename(struct xfs_da_args *args); | |
155 | extern int xfs_dir2_node_replace(struct xfs_da_args *args); | |
156 | extern int xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo, | |
157 | int *rvalp); | |
92244687 DW |
158 | int xfs_dir2_free_read(struct xfs_trans *tp, struct xfs_inode *dp, |
159 | xfs_ino_t owner, xfs_dablk_t fbno, struct xfs_buf **bpp); | |
a2ceac1f DC |
160 | |
161 | /* xfs_dir2_sf.c */ | |
e96bd2d3 CH |
162 | xfs_ino_t xfs_dir2_sf_get_ino(struct xfs_mount *mp, struct xfs_dir2_sf_hdr *hdr, |
163 | struct xfs_dir2_sf_entry *sfep); | |
8a7190bd CH |
164 | xfs_ino_t xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr *hdr); |
165 | void xfs_dir2_sf_put_parent_ino(struct xfs_dir2_sf_hdr *hdr, xfs_ino_t ino); | |
d49d4ff5 CH |
166 | uint8_t xfs_dir2_sf_get_ftype(struct xfs_mount *mp, |
167 | struct xfs_dir2_sf_entry *sfep); | |
660836c9 CH |
168 | struct xfs_dir2_sf_entry *xfs_dir2_sf_nextentry(struct xfs_mount *mp, |
169 | struct xfs_dir2_sf_hdr *hdr, struct xfs_dir2_sf_entry *sfep); | |
a2ceac1f DC |
170 | extern int xfs_dir2_block_sfsize(struct xfs_inode *dp, |
171 | struct xfs_dir2_data_hdr *block, struct xfs_dir2_sf_hdr *sfhp); | |
172 | extern int xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_buf *bp, | |
173 | int size, xfs_dir2_sf_hdr_t *sfhp); | |
174 | extern int xfs_dir2_sf_addname(struct xfs_da_args *args); | |
175 | extern int xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino); | |
a2ceac1f DC |
176 | extern int xfs_dir2_sf_lookup(struct xfs_da_args *args); |
177 | extern int xfs_dir2_sf_removename(struct xfs_da_args *args); | |
178 | extern int xfs_dir2_sf_replace(struct xfs_da_args *args); | |
7c5d4f92 DW |
179 | xfs_failaddr_t xfs_dir2_sf_verify(struct xfs_mount *mp, |
180 | struct xfs_dir2_sf_hdr *sfp, int64_t size); | |
846e459c DW |
181 | int xfs_dir2_sf_entsize(struct xfs_mount *mp, |
182 | struct xfs_dir2_sf_hdr *hdr, int len); | |
183 | void xfs_dir2_sf_put_ino(struct xfs_mount *mp, struct xfs_dir2_sf_hdr *hdr, | |
184 | struct xfs_dir2_sf_entry *sfep, xfs_ino_t ino); | |
185 | void xfs_dir2_sf_put_ftype(struct xfs_mount *mp, | |
186 | struct xfs_dir2_sf_entry *sfep, uint8_t ftype); | |
a2ceac1f | 187 | |
494434d7 | 188 | /* xfs_dir2_readdir.c */ |
581ce8a5 DW |
189 | extern int xfs_readdir(struct xfs_trans *tp, struct xfs_inode *dp, |
190 | struct dir_context *ctx, size_t bufsize); | |
494434d7 | 191 | |
6540c8ae | 192 | static inline unsigned int |
193 | xfs_dir2_data_unusedsize( | |
194 | unsigned int len) | |
195 | { | |
196 | return round_up(len, XFS_DIR2_DATA_ALIGN); | |
197 | } | |
198 | ||
e778c95d CH |
199 | static inline unsigned int |
200 | xfs_dir2_data_entsize( | |
201 | struct xfs_mount *mp, | |
202 | unsigned int namelen) | |
203 | { | |
204 | unsigned int len; | |
205 | ||
206 | len = offsetof(struct xfs_dir2_data_entry, name[0]) + namelen + | |
207 | sizeof(xfs_dir2_data_off_t) /* tag */; | |
94541a16 | 208 | if (xfs_has_ftype(mp)) |
e778c95d CH |
209 | len += sizeof(uint8_t); |
210 | return round_up(len, XFS_DIR2_DATA_ALIGN); | |
211 | } | |
212 | ||
c331b654 DW |
213 | xfs_dahash_t xfs_dir2_hashname(struct xfs_mount *mp, |
214 | const struct xfs_name *name); | |
846e459c DW |
215 | enum xfs_dacmp xfs_dir2_compname(struct xfs_da_args *args, |
216 | const unsigned char *name, int len); | |
e169cc9b | 217 | |
a2ceac1f | 218 | #endif /* __XFS_DIR2_PRIV_H__ */ |