xref: /openbmc/linux/fs/xfs/libxfs/xfs_dir2_priv.h (revision fca3aa16)
1 /*
2  * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
3  * All Rights Reserved.
4  *
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.
8  *
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.
13  *
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
17  */
18 #ifndef __XFS_DIR2_PRIV_H__
19 #define __XFS_DIR2_PRIV_H__
20 
21 struct dir_context;
22 
23 /* xfs_dir2.c */
24 extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
25 				xfs_dir2_db_t *dbp);
26 extern int xfs_dir_cilookup_result(struct xfs_da_args *args,
27 				const unsigned char *name, int len);
28 
29 
30 /* xfs_dir2_block.c */
31 extern int xfs_dir3_block_read(struct xfs_trans *tp, struct xfs_inode *dp,
32 			       struct xfs_buf **bpp);
33 extern int xfs_dir2_block_addname(struct xfs_da_args *args);
34 extern int xfs_dir2_block_lookup(struct xfs_da_args *args);
35 extern int xfs_dir2_block_removename(struct xfs_da_args *args);
36 extern int xfs_dir2_block_replace(struct xfs_da_args *args);
37 extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args,
38 		struct xfs_buf *lbp, struct xfs_buf *dbp);
39 
40 /* xfs_dir2_data.c */
41 #ifdef DEBUG
42 extern void xfs_dir3_data_check(struct xfs_inode *dp, struct xfs_buf *bp);
43 #else
44 #define	xfs_dir3_data_check(dp,bp)
45 #endif
46 
47 extern xfs_failaddr_t __xfs_dir3_data_check(struct xfs_inode *dp,
48 		struct xfs_buf *bp);
49 extern int xfs_dir3_data_read(struct xfs_trans *tp, struct xfs_inode *dp,
50 		xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp);
51 extern int xfs_dir3_data_readahead(struct xfs_inode *dp, xfs_dablk_t bno,
52 		xfs_daddr_t mapped_bno);
53 
54 extern struct xfs_dir2_data_free *
55 xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr,
56 		struct xfs_dir2_data_free *bf, struct xfs_dir2_data_unused *dup,
57 		int *loghead);
58 extern int xfs_dir3_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno,
59 		struct xfs_buf **bpp);
60 
61 /* xfs_dir2_leaf.c */
62 extern int xfs_dir3_leaf_read(struct xfs_trans *tp, struct xfs_inode *dp,
63 		xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
64 extern int xfs_dir3_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp,
65 		xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
66 extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args,
67 		struct xfs_buf *dbp);
68 extern int xfs_dir2_leaf_addname(struct xfs_da_args *args);
69 extern void xfs_dir3_leaf_compact(struct xfs_da_args *args,
70 		struct xfs_dir3_icleaf_hdr *leafhdr, struct xfs_buf *bp);
71 extern void xfs_dir3_leaf_compact_x1(struct xfs_dir3_icleaf_hdr *leafhdr,
72 		struct xfs_dir2_leaf_entry *ents, int *indexp,
73 		int *lowstalep, int *highstalep, int *lowlogp, int *highlogp);
74 extern int xfs_dir3_leaf_get_buf(struct xfs_da_args *args, xfs_dir2_db_t bno,
75 		struct xfs_buf **bpp, uint16_t magic);
76 extern void xfs_dir3_leaf_log_ents(struct xfs_da_args *args,
77 		struct xfs_buf *bp, int first, int last);
78 extern void xfs_dir3_leaf_log_header(struct xfs_da_args *args,
79 		struct xfs_buf *bp);
80 extern int xfs_dir2_leaf_lookup(struct xfs_da_args *args);
81 extern int xfs_dir2_leaf_removename(struct xfs_da_args *args);
82 extern int xfs_dir2_leaf_replace(struct xfs_da_args *args);
83 extern int xfs_dir2_leaf_search_hash(struct xfs_da_args *args,
84 		struct xfs_buf *lbp);
85 extern int xfs_dir2_leaf_trim_data(struct xfs_da_args *args,
86 		struct xfs_buf *lbp, xfs_dir2_db_t db);
87 extern struct xfs_dir2_leaf_entry *
88 xfs_dir3_leaf_find_entry(struct xfs_dir3_icleaf_hdr *leafhdr,
89 		struct xfs_dir2_leaf_entry *ents, int index, int compact,
90 		int lowstale, int highstale, int *lfloglow, int *lfloghigh);
91 extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state);
92 
93 extern xfs_failaddr_t xfs_dir3_leaf_check_int(struct xfs_mount *mp,
94 		struct xfs_inode *dp, struct xfs_dir3_icleaf_hdr *hdr,
95 		struct xfs_dir2_leaf *leaf);
96 
97 /* xfs_dir2_node.c */
98 extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args,
99 		struct xfs_buf *lbp);
100 extern xfs_dahash_t xfs_dir2_leaf_lasthash(struct xfs_inode *dp,
101 		struct xfs_buf *bp, int *count);
102 extern int xfs_dir2_leafn_lookup_int(struct xfs_buf *bp,
103 		struct xfs_da_args *args, int *indexp,
104 		struct xfs_da_state *state);
105 extern int xfs_dir2_leafn_order(struct xfs_inode *dp, struct xfs_buf *leaf1_bp,
106 		struct xfs_buf *leaf2_bp);
107 extern int xfs_dir2_leafn_split(struct xfs_da_state *state,
108 	struct xfs_da_state_blk *oldblk, struct xfs_da_state_blk *newblk);
109 extern int xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action);
110 extern void xfs_dir2_leafn_unbalance(struct xfs_da_state *state,
111 		struct xfs_da_state_blk *drop_blk,
112 		struct xfs_da_state_blk *save_blk);
113 extern int xfs_dir2_node_addname(struct xfs_da_args *args);
114 extern int xfs_dir2_node_lookup(struct xfs_da_args *args);
115 extern int xfs_dir2_node_removename(struct xfs_da_args *args);
116 extern int xfs_dir2_node_replace(struct xfs_da_args *args);
117 extern int xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo,
118 		int *rvalp);
119 extern int xfs_dir2_free_read(struct xfs_trans *tp, struct xfs_inode *dp,
120 		xfs_dablk_t fbno, struct xfs_buf **bpp);
121 
122 /* xfs_dir2_sf.c */
123 extern int xfs_dir2_block_sfsize(struct xfs_inode *dp,
124 		struct xfs_dir2_data_hdr *block, struct xfs_dir2_sf_hdr *sfhp);
125 extern int xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_buf *bp,
126 		int size, xfs_dir2_sf_hdr_t *sfhp);
127 extern int xfs_dir2_sf_addname(struct xfs_da_args *args);
128 extern int xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino);
129 extern int xfs_dir2_sf_lookup(struct xfs_da_args *args);
130 extern int xfs_dir2_sf_removename(struct xfs_da_args *args);
131 extern int xfs_dir2_sf_replace(struct xfs_da_args *args);
132 extern xfs_failaddr_t xfs_dir2_sf_verify(struct xfs_inode *ip);
133 
134 /* xfs_dir2_readdir.c */
135 extern int xfs_readdir(struct xfs_trans *tp, struct xfs_inode *dp,
136 		       struct dir_context *ctx, size_t bufsize);
137 
138 #endif /* __XFS_DIR2_PRIV_H__ */
139