4 * Copyright (C) 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
12 struct ext2_inode_reference {
17 struct ext2_inode_relocate_entry {
24 typedef struct ext2_inode_relocation_table *ext2_irel;
26 struct ext2_inode_relocation_table {
33 * Add an inode relocation entry.
35 errcode_t (*put)(ext2_irel irel, ext2_ino_t old,
36 struct ext2_inode_relocate_entry *ent);
38 * Get an inode relocation entry.
40 errcode_t (*get)(ext2_irel irel, ext2_ino_t old,
41 struct ext2_inode_relocate_entry *ent);
44 * Get an inode relocation entry by its original inode number
46 errcode_t (*get_by_orig)(ext2_irel irel, ext2_ino_t orig, ext2_ino_t *old,
47 struct ext2_inode_relocate_entry *ent);
50 * Initialize for iterating over the inode relocation entries.
52 errcode_t (*start_iter)(ext2_irel irel);
55 * The iterator function for the inode relocation entries.
56 * Returns an inode number of 0 when out of entries.
58 errcode_t (*next)(ext2_irel irel, ext2_ino_t *old,
59 struct ext2_inode_relocate_entry *ent);
62 * Add an inode reference (i.e., note the fact that a
63 * particular block/offset contains a reference to an inode)
65 errcode_t (*add_ref)(ext2_irel irel, ext2_ino_t ino,
66 struct ext2_inode_reference *ref);
69 * Initialize for iterating over the inode references for a
72 errcode_t (*start_iter_ref)(ext2_irel irel, ext2_ino_t ino);
75 * The iterator function for the inode references for an
76 * inode. The references for only one inode can be interator
77 * over at a time, as the iterator state is stored in ext2_irel.
79 errcode_t (*next_ref)(ext2_irel irel,
80 struct ext2_inode_reference *ref);
83 * Move the inode relocation table from one inode number to
84 * another. Note that the inode references also must move.
86 errcode_t (*move)(ext2_irel irel, ext2_ino_t old, ext2_ino_t new);
89 * Remove an inode relocation entry, along with all of the
92 errcode_t (*delete)(ext2_irel irel, ext2_ino_t old);
95 * Free the inode relocation table.
97 errcode_t (*free)(ext2_irel irel);
100 errcode_t ext2fs_irel_memarray_create(char *name, ext2_ino_t max_inode,
103 #define ext2fs_irel_put(irel, old, ent) ((irel)->put((irel), old, ent))
104 #define ext2fs_irel_get(irel, old, ent) ((irel)->get((irel), old, ent))
105 #define ext2fs_irel_get_by_orig(irel, orig, old, ent) \
106 ((irel)->get_by_orig((irel), orig, old, ent))
107 #define ext2fs_irel_start_iter(irel) ((irel)->start_iter((irel)))
108 #define ext2fs_irel_next(irel, old, ent) ((irel)->next((irel), old, ent))
109 #define ext2fs_irel_add_ref(irel, ino, ref) ((irel)->add_ref((irel), ino, ref))
110 #define ext2fs_irel_start_iter_ref(irel, ino) ((irel)->start_iter_ref((irel), ino))
111 #define ext2fs_irel_next_ref(irel, ref) ((irel)->next_ref((irel), ref))
112 #define ext2fs_irel_move(irel, old, new) ((irel)->move((irel), old, new))
113 #define ext2fs_irel_delete(irel, old) ((irel)->delete((irel), old))
114 #define ext2fs_irel_free(irel) ((irel)->free((irel)))