1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) 1996, 1997 Theodore Ts'o.
8 * This file may be redistributed under the terms of the GNU Public
13 struct ext2_block_relocate_entry {
23 #define RELOCATE_TYPE_REF 0x0007
24 #define RELOCATE_BLOCK_REF 0x0001
25 #define RELOCATE_INODE_REF 0x0002
27 typedef struct ext2_block_relocation_table *ext2_brel;
29 struct ext2_block_relocation_table {
36 * Add a block relocation entry.
38 errcode_t (*put)(ext2_brel brel, blk_t old,
39 struct ext2_block_relocate_entry *ent);
42 * Get a block relocation entry.
44 errcode_t (*get)(ext2_brel brel, blk_t old,
45 struct ext2_block_relocate_entry *ent);
48 * Initialize for iterating over the block relocation entries.
50 errcode_t (*start_iter)(ext2_brel brel);
53 * The iterator function for the inode relocation entries.
54 * Returns an inode number of 0 when out of entries.
56 errcode_t (*next)(ext2_brel brel, blk_t *old,
57 struct ext2_block_relocate_entry *ent);
60 * Move the inode relocation table from one block number to
63 errcode_t (*move)(ext2_brel brel, blk_t old, blk_t new);
66 * Remove a block relocation entry.
68 errcode_t (*delete)(ext2_brel brel, blk_t old);
72 * Free the block relocation table.
74 errcode_t (*free)(ext2_brel brel);
77 errcode_t ext2fs_brel_memarray_create(char *name, blk_t max_block,
80 #define ext2fs_brel_put(brel, old, ent) ((brel)->put((brel), old, ent))
81 #define ext2fs_brel_get(brel, old, ent) ((brel)->get((brel), old, ent))
82 #define ext2fs_brel_start_iter(brel) ((brel)->start_iter((brel)))
83 #define ext2fs_brel_next(brel, old, ent) ((brel)->next((brel), old, ent))
84 #define ext2fs_brel_move(brel, old, new) ((brel)->move((brel), old, new))
85 #define ext2fs_brel_delete(brel, old) ((brel)->delete((brel), old))
86 #define ext2fs_brel_free(brel) ((brel)->free((brel)))