/* vi: set sw=4 ts=4: *//* * brel.h * * Copyright (C) 1996, 1997 Theodore Ts'o. * * %Begin-Header% * This file may be redistributed under the terms of the GNU Public * License. * %End-Header% */struct ext2_block_relocate_entry {	blk_t	new;	__s16	offset;	__u16	flags;	union {		blk_t		block_ref;		ext2_ino_t	inode_ref;	} owner;};#define RELOCATE_TYPE_REF  0x0007#define RELOCATE_BLOCK_REF 0x0001#define RELOCATE_INODE_REF 0x0002typedef struct ext2_block_relocation_table *ext2_brel;struct ext2_block_relocation_table {	__u32	magic;	char	*name;	blk_t	current;	void	*priv_data;	/*	 * Add a block relocation entry.	 */	errcode_t (*put)(ext2_brel brel, blk_t old,			      struct ext2_block_relocate_entry *ent);	/*	 * Get a block relocation entry.	 */	errcode_t (*get)(ext2_brel brel, blk_t old,			      struct ext2_block_relocate_entry *ent);	/*	 * Initialize for iterating over the block relocation entries.	 */	errcode_t (*start_iter)(ext2_brel brel);	/*	 * The iterator function for the inode relocation entries.	 * Returns an inode number of 0 when out of entries.	 */	errcode_t (*next)(ext2_brel brel, blk_t *old,			  struct ext2_block_relocate_entry *ent);	/*	 * Move the inode relocation table from one block number to	 * another.	 */	errcode_t (*move)(ext2_brel brel, blk_t old, blk_t new);	/*	 * Remove a block relocation entry.	 */	errcode_t (*delete)(ext2_brel brel, blk_t old);	/*	 * Free the block relocation table.	 */	errcode_t (*free)(ext2_brel brel);};errcode_t ext2fs_brel_memarray_create(char *name, blk_t max_block,				    ext2_brel *brel);#define ext2fs_brel_put(brel, old, ent) ((brel)->put((brel), old, ent))#define ext2fs_brel_get(brel, old, ent) ((brel)->get((brel), old, ent))#define ext2fs_brel_start_iter(brel) ((brel)->start_iter((brel)))#define ext2fs_brel_next(brel, old, ent) ((brel)->next((brel), old, ent))#define ext2fs_brel_move(brel, old, new) ((brel)->move((brel), old, new))#define ext2fs_brel_delete(brel, old) ((brel)->delete((brel), old))#define ext2fs_brel_free(brel) ((brel)->free((brel)))