Commit | Line | Data |
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328970de | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
fa60ce2c | 2 | /* |
ccd979bd MF |
3 | * dir.h |
4 | * | |
5 | * Function prototypes | |
6 | * | |
7 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. | |
ccd979bd MF |
8 | */ |
9 | ||
10 | #ifndef OCFS2_DIR_H | |
11 | #define OCFS2_DIR_H | |
12 | ||
9b7895ef MF |
13 | struct ocfs2_dx_hinfo { |
14 | u32 major_hash; | |
15 | u32 minor_hash; | |
16 | }; | |
17 | ||
4a12ca3a | 18 | struct ocfs2_dir_lookup_result { |
9b7895ef MF |
19 | struct buffer_head *dl_leaf_bh; /* Unindexed leaf |
20 | * block */ | |
21 | struct ocfs2_dir_entry *dl_entry; /* Target dirent in | |
22 | * unindexed leaf */ | |
23 | ||
4ed8a6bb MF |
24 | struct buffer_head *dl_dx_root_bh; /* Root of indexed |
25 | * tree */ | |
e7c17e43 | 26 | |
9b7895ef MF |
27 | struct buffer_head *dl_dx_leaf_bh; /* Indexed leaf block */ |
28 | struct ocfs2_dx_entry *dl_dx_entry; /* Target dx_entry in | |
29 | * indexed leaf */ | |
30 | struct ocfs2_dx_hinfo dl_hinfo; /* Name hash results */ | |
e7c17e43 MF |
31 | |
32 | struct buffer_head *dl_prev_leaf_bh;/* Previous entry in | |
33 | * dir free space | |
34 | * list. NULL if | |
35 | * previous entry is | |
36 | * dx root block. */ | |
4a12ca3a | 37 | }; |
e7c17e43 | 38 | |
4a12ca3a MF |
39 | void ocfs2_free_dir_lookup_result(struct ocfs2_dir_lookup_result *res); |
40 | ||
41 | int ocfs2_find_entry(const char *name, int namelen, | |
42 | struct inode *dir, | |
43 | struct ocfs2_dir_lookup_result *lookup); | |
316f4b9f MF |
44 | int ocfs2_delete_entry(handle_t *handle, |
45 | struct inode *dir, | |
4a12ca3a | 46 | struct ocfs2_dir_lookup_result *res); |
316f4b9f MF |
47 | int __ocfs2_add_entry(handle_t *handle, |
48 | struct inode *dir, | |
49 | const char *name, int namelen, | |
50 | struct inode *inode, u64 blkno, | |
51 | struct buffer_head *parent_fe_bh, | |
4a12ca3a | 52 | struct ocfs2_dir_lookup_result *lookup); |
316f4b9f MF |
53 | static inline int ocfs2_add_entry(handle_t *handle, |
54 | struct dentry *dentry, | |
55 | struct inode *inode, u64 blkno, | |
56 | struct buffer_head *parent_fe_bh, | |
4a12ca3a | 57 | struct ocfs2_dir_lookup_result *lookup) |
316f4b9f | 58 | { |
2b0143b5 | 59 | return __ocfs2_add_entry(handle, d_inode(dentry->d_parent), |
316f4b9f | 60 | dentry->d_name.name, dentry->d_name.len, |
4a12ca3a | 61 | inode, blkno, parent_fe_bh, lookup); |
316f4b9f | 62 | } |
38760e24 | 63 | int ocfs2_update_entry(struct inode *dir, handle_t *handle, |
4a12ca3a | 64 | struct ocfs2_dir_lookup_result *res, |
38760e24 | 65 | struct inode *new_entry_inode); |
316f4b9f | 66 | |
ccd979bd MF |
67 | int ocfs2_check_dir_for_entry(struct inode *dir, |
68 | const char *name, | |
69 | int namelen); | |
0bfbbf62 | 70 | int ocfs2_empty_dir(struct inode *inode); |
4a12ca3a | 71 | |
ccd979bd MF |
72 | int ocfs2_find_files_on_disk(const char *name, |
73 | int namelen, | |
74 | u64 *blkno, | |
75 | struct inode *inode, | |
4a12ca3a | 76 | struct ocfs2_dir_lookup_result *res); |
be94d117 MF |
77 | int ocfs2_lookup_ino_from_name(struct inode *dir, const char *name, |
78 | int namelen, u64 *blkno); | |
3704412b AV |
79 | int ocfs2_readdir(struct file *file, struct dir_context *ctx); |
80 | int ocfs2_dir_foreach(struct inode *inode, struct dir_context *ctx); | |
ccd979bd MF |
81 | int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb, |
82 | struct inode *dir, | |
83 | struct buffer_head *parent_fe_bh, | |
84 | const char *name, | |
85 | int namelen, | |
4a12ca3a | 86 | struct ocfs2_dir_lookup_result *lookup); |
ccd979bd | 87 | struct ocfs2_alloc_context; |
316f4b9f MF |
88 | int ocfs2_fill_new_dir(struct ocfs2_super *osb, |
89 | handle_t *handle, | |
90 | struct inode *parent, | |
91 | struct inode *inode, | |
92 | struct buffer_head *fe_bh, | |
9b7895ef MF |
93 | struct ocfs2_alloc_context *data_ac, |
94 | struct ocfs2_alloc_context *meta_ac); | |
95 | ||
96 | int ocfs2_dx_dir_truncate(struct inode *dir, struct buffer_head *di_bh); | |
316f4b9f | 97 | |
c175a518 JB |
98 | struct ocfs2_dir_block_trailer *ocfs2_dir_trailer_from_size(int blocksize, |
99 | void *data); | |
ccd979bd | 100 | #endif /* OCFS2_DIR_H */ |