e2fsprogs/ext2fs/ext2fs_inline.c - codeaurora/busybox - Gitiles

 /*
  * ext2fs.h --- ext2fs
  *
  * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
  *
  * %Begin-Header%
  * This file may be redistributed under the terms of the GNU Public
  * License.
  * %End-Header%
  */

 #include "ext2fs.h"
 #include "bitops.h"

 /*
  *  Allocate memory
  */
 errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
 {
 	void **pp = (void **)ptr;

 	*pp = malloc(size);
 	if (!*pp)
 		return EXT2_ET_NO_MEMORY;
 	return 0;
 }

 /*
  * Free memory
  */
 errcode_t ext2fs_free_mem(void *ptr)
 {
 	void **pp = (void **)ptr;

 	free(*pp);
 	*pp = 0;
 	return 0;
 }

 /*
  *  Resize memory
  */
 errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
 				     unsigned long size, void *ptr)
 {
 	void *p;
 	void **pp = (void **)ptr;

 	p = realloc(*pp, size);
 	if (!p)
 		return EXT2_ET_NO_MEMORY;
 	*pp = p;
 	return 0;
 }

 /*
  * Mark a filesystem superblock as dirty
  */
 void ext2fs_mark_super_dirty(ext2_filsys fs)
 {
 	fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
 }

 /*
  * Mark a filesystem as changed
  */
 void ext2fs_mark_changed(ext2_filsys fs)
 {
 	fs->flags |= EXT2_FLAG_CHANGED;
 }

 /*
  * Check to see if a filesystem has changed
  */
 int ext2fs_test_changed(ext2_filsys fs)
 {
 	return (fs->flags & EXT2_FLAG_CHANGED);
 }

 /*
  * Mark a filesystem as valid
  */
 void ext2fs_mark_valid(ext2_filsys fs)
 {
 	fs->flags |= EXT2_FLAG_VALID;
 }

 /*
  * Mark a filesystem as NOT valid
  */
 void ext2fs_unmark_valid(ext2_filsys fs)
 {
 	fs->flags &= ~EXT2_FLAG_VALID;
 }

 /*
  * Check to see if a filesystem is valid
  */
 int ext2fs_test_valid(ext2_filsys fs)
 {
 	return (fs->flags & EXT2_FLAG_VALID);
 }

 /*
  * Mark the inode bitmap as dirty
  */
 void ext2fs_mark_ib_dirty(ext2_filsys fs)
 {
 	fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
 }

 /*
  * Mark the block bitmap as dirty
  */
 void ext2fs_mark_bb_dirty(ext2_filsys fs)
 {
 	fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
 }

 /*
  * Check to see if a filesystem's inode bitmap is dirty
  */
 int ext2fs_test_ib_dirty(ext2_filsys fs)
 {
 	return (fs->flags & EXT2_FLAG_IB_DIRTY);
 }

 /*
  * Check to see if a filesystem's block bitmap is dirty
  */
 int ext2fs_test_bb_dirty(ext2_filsys fs)
 {
 	return (fs->flags & EXT2_FLAG_BB_DIRTY);
 }

 /*
  * Return the group # of a block
  */
 int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
 {
 	return (blk - fs->super->s_first_data_block) /
 		fs->super->s_blocks_per_group;
 }

 /*
  * Return the group # of an inode number
  */
 int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
 {
 	return (ino - 1) / fs->super->s_inodes_per_group;
 }

 blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
 					struct ext2_inode *inode)
 {
        return inode->i_blocks -
               (inode->i_file_acl ? fs->blocksize >> 9 : 0);
 }


 __u16 ext2fs_swab16(__u16 val)
 {
 	return (val >> 8) | (val << 8);
 }

 __u32 ext2fs_swab32(__u32 val)
 {
 	return ((val>>24) | ((val>>8)&0xFF00) |
 		((val<<8)&0xFF0000) | (val<<24));
 }

 int ext2fs_find_first_bit_set(void * addr, unsigned size)
 {
 	char	*cp = (unsigned char *) addr;
 	int 	res = 0, d0;

 	if (!size)
 		return 0;

 	while ((size > res) && (*cp == 0)) {
 		cp++;
 		res += 8;
 	}
 	d0 = ffs(*cp);
 	if (d0 == 0)
 		return size;

 	return res + d0 - 1;
 }

 int ext2fs_find_next_bit_set (void * addr, int size, int offset)
 {
 	unsigned char * p;
 	int set = 0, bit = offset & 7, res = 0, d0;

 	res = offset >> 3;
 	p = ((unsigned char *) addr) + res;

 	if (bit) {
 		set = ffs(*p & ~((1 << bit) - 1));
 		if (set)
 			return (offset & ~7) + set - 1;
 		p++;
 		res += 8;
 	}
 	while ((size > res) && (*p == 0)) {
 		p++;
 		res += 8;
 	}
 	d0 = ffs(*p);
 	if (d0 == 0)
 		return size;

 	return (res + d0 - 1);
 }

 int ext2fs_test_generic_bitmap(ext2fs_generic_bitmap bitmap,
 					blk_t bitno);

 int ext2fs_test_generic_bitmap(ext2fs_generic_bitmap bitmap,
 					blk_t bitno)
 {
 	if ((bitno < bitmap->start) || (bitno > bitmap->end)) {
 		ext2fs_warn_bitmap2(bitmap, EXT2FS_TEST_ERROR, bitno);
 		return 0;
 	}
 	return ext2fs_test_bit(bitno - bitmap->start, bitmap->bitmap);
 }

 int ext2fs_mark_block_bitmap(ext2fs_block_bitmap bitmap,
 				       blk_t block)
 {
 	return ext2fs_mark_generic_bitmap((ext2fs_generic_bitmap)
 				       bitmap,
 					  block);
 }

 int ext2fs_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
 					 blk_t block)
 {
 	return ext2fs_unmark_generic_bitmap((ext2fs_generic_bitmap) bitmap,
 					    block);
 }

 int ext2fs_test_block_bitmap(ext2fs_block_bitmap bitmap,
 				       blk_t block)
 {
 	return ext2fs_test_generic_bitmap((ext2fs_generic_bitmap) bitmap,
 					  block);
 }

 int ext2fs_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
 				       ext2_ino_t inode)
 {
 	return ext2fs_mark_generic_bitmap((ext2fs_generic_bitmap) bitmap,
 					  inode);
 }

 int ext2fs_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
 					 ext2_ino_t inode)
 {
 	return ext2fs_unmark_generic_bitmap((ext2fs_generic_bitmap) bitmap,
 				     inode);
 }

 int ext2fs_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
 				       ext2_ino_t inode)
 {
 	return ext2fs_test_generic_bitmap((ext2fs_generic_bitmap) bitmap,
 					  inode);
 }

 void ext2fs_fast_mark_block_bitmap(ext2fs_block_bitmap bitmap,
 					    blk_t block)
 {
 #ifdef EXT2FS_DEBUG_FAST_OPS
 	if ((block < bitmap->start) || (block > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_MARK, block,
 				   bitmap->description);
 		return;
 	}
 #endif
 	ext2fs_set_bit(block - bitmap->start, bitmap->bitmap);
 }

 void ext2fs_fast_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
 					      blk_t block)
 {
 #ifdef EXT2FS_DEBUG_FAST_OPS
 	if ((block < bitmap->start) || (block > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_UNMARK,
 				   block, bitmap->description);
 		return;
 	}
 #endif
 	ext2fs_clear_bit(block - bitmap->start, bitmap->bitmap);
 }

 int ext2fs_fast_test_block_bitmap(ext2fs_block_bitmap bitmap,
 					    blk_t block)
 {
 #ifdef EXT2FS_DEBUG_FAST_OPS
 	if ((block < bitmap->start) || (block > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_TEST,
 				   block, bitmap->description);
 		return 0;
 	}
 #endif
 	return ext2fs_test_bit(block - bitmap->start, bitmap->bitmap);
 }

 void ext2fs_fast_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
 					    ext2_ino_t inode)
 {
 #ifdef EXT2FS_DEBUG_FAST_OPS
 	if ((inode < bitmap->start) || (inode > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_INODE_MARK,
 				   inode, bitmap->description);
 		return;
 	}
 #endif
 	ext2fs_set_bit(inode - bitmap->start, bitmap->bitmap);
 }

 void ext2fs_fast_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
 					      ext2_ino_t inode)
 {
 #ifdef EXT2FS_DEBUG_FAST_OPS
 	if ((inode < bitmap->start) || (inode > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_INODE_UNMARK,
 				   inode, bitmap->description);
 		return;
 	}
 #endif
 	ext2fs_clear_bit(inode - bitmap->start, bitmap->bitmap);
 }

 int ext2fs_fast_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
 					   ext2_ino_t inode)
 {
 #ifdef EXT2FS_DEBUG_FAST_OPS
 	if ((inode < bitmap->start) || (inode > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_INODE_TEST,
 				   inode, bitmap->description);
 		return 0;
 	}
 #endif
 	return ext2fs_test_bit(inode - bitmap->start, bitmap->bitmap);
 }

 blk_t ext2fs_get_block_bitmap_start(ext2fs_block_bitmap bitmap)
 {
 	return bitmap->start;
 }

 ext2_ino_t ext2fs_get_inode_bitmap_start(ext2fs_inode_bitmap bitmap)
 {
 	return bitmap->start;
 }

 blk_t ext2fs_get_block_bitmap_end(ext2fs_block_bitmap bitmap)
 {
 	return bitmap->end;
 }

 ext2_ino_t ext2fs_get_inode_bitmap_end(ext2fs_inode_bitmap bitmap)
 {
 	return bitmap->end;
 }

 int ext2fs_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
 					    blk_t block, int num)
 {
 	int	i;

 	if ((block < bitmap->start) || (block+num-1 > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_TEST,
 				   block, bitmap->description);
 		return 0;
 	}
 	for (i=0; i < num; i++) {
 		if (ext2fs_fast_test_block_bitmap(bitmap, block+i))
 			return 0;
 	}
 	return 1;
 }

 int ext2fs_fast_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
 						 blk_t block, int num)
 {
 	int	i;

 #ifdef EXT2FS_DEBUG_FAST_OPS
 	if ((block < bitmap->start) || (block+num-1 > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_TEST,
 				   block, bitmap->description);
 		return 0;
 	}
 #endif
 	for (i=0; i < num; i++) {
 		if (ext2fs_fast_test_block_bitmap(bitmap, block+i))
 			return 0;
 	}
 	return 1;
 }

 void ext2fs_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
 					     blk_t block, int num)
 {
 	int	i;

 	if ((block < bitmap->start) || (block+num-1 > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_MARK, block,
 				   bitmap->description);
 		return;
 	}
 	for (i=0; i < num; i++)
 		ext2fs_set_bit(block + i - bitmap->start, bitmap->bitmap);
 }

 void ext2fs_fast_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
 						  blk_t block, int num)
 {
 	int	i;

 #ifdef EXT2FS_DEBUG_FAST_OPS
 	if ((block < bitmap->start) || (block+num-1 > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_MARK, block,
 				   bitmap->description);
 		return;
 	}
 #endif
 	for (i=0; i < num; i++)
 		ext2fs_set_bit(block + i - bitmap->start, bitmap->bitmap);
 }

 void ext2fs_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
 					       blk_t block, int num)
 {
 	int	i;

 	if ((block < bitmap->start) || (block+num-1 > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_UNMARK, block,
 				   bitmap->description);
 		return;
 	}
 	for (i=0; i < num; i++)
 		ext2fs_clear_bit(block + i - bitmap->start, bitmap->bitmap);
 }

 void ext2fs_fast_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
 						    blk_t block, int num)
 {
 	int	i;

 #ifdef EXT2FS_DEBUG_FAST_OPS
 	if ((block < bitmap->start) || (block+num-1 > bitmap->end)) {
 		ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_UNMARK, block,
 				   bitmap->description);
 		return;
 	}
 #endif
 	for (i=0; i < num; i++)
 		ext2fs_clear_bit(block + i - bitmap->start, bitmap->bitmap);
 }
	/*
	* ext2fs.h --- ext2fs
	*
	* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
	*
	* %Begin-Header%
	* This file may be redistributed under the terms of the GNU Public
	* License.
	* %End-Header%
	*/

	#include "ext2fs.h"
	#include "bitops.h"

	/*
	* Allocate memory
	*/
	errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
	{
	void pp = (void )ptr;

	*pp = malloc(size);
	if (!*pp)
	return EXT2_ET_NO_MEMORY;
	return 0;
	}

	/*
	* Free memory
	*/
	errcode_t ext2fs_free_mem(void *ptr)
	{
	void pp = (void )ptr;

	free(*pp);
	*pp = 0;
	return 0;
	}

	/*
	* Resize memory
	*/
	errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
	unsigned long size, void *ptr)
	{
	void *p;
	void pp = (void )ptr;

	p = realloc(*pp, size);
	if (!p)
	return EXT2_ET_NO_MEMORY;
	*pp = p;
	return 0;
	}

	/*
	* Mark a filesystem superblock as dirty
	*/
	void ext2fs_mark_super_dirty(ext2_filsys fs)
	{
	fs->flags \|= EXT2_FLAG_DIRTY \| EXT2_FLAG_CHANGED;
	}

	/*
	* Mark a filesystem as changed
	*/
	void ext2fs_mark_changed(ext2_filsys fs)
	{
	fs->flags \|= EXT2_FLAG_CHANGED;
	}

	/*
	* Check to see if a filesystem has changed
	*/
	int ext2fs_test_changed(ext2_filsys fs)
	{
	return (fs->flags & EXT2_FLAG_CHANGED);
	}

	/*
	* Mark a filesystem as valid
	*/
	void ext2fs_mark_valid(ext2_filsys fs)
	{
	fs->flags \|= EXT2_FLAG_VALID;
	}

	/*
	* Mark a filesystem as NOT valid
	*/
	void ext2fs_unmark_valid(ext2_filsys fs)
	{
	fs->flags &= ~EXT2_FLAG_VALID;
	}

	/*
	* Check to see if a filesystem is valid
	*/
	int ext2fs_test_valid(ext2_filsys fs)
	{
	return (fs->flags & EXT2_FLAG_VALID);
	}

	/*
	* Mark the inode bitmap as dirty
	*/
	void ext2fs_mark_ib_dirty(ext2_filsys fs)
	{
	fs->flags \|= EXT2_FLAG_IB_DIRTY \| EXT2_FLAG_CHANGED;
	}

	/*
	* Mark the block bitmap as dirty
	*/
	void ext2fs_mark_bb_dirty(ext2_filsys fs)
	{
	fs->flags \|= EXT2_FLAG_BB_DIRTY \| EXT2_FLAG_CHANGED;
	}

	/*
	* Check to see if a filesystem's inode bitmap is dirty
	*/
	int ext2fs_test_ib_dirty(ext2_filsys fs)
	{
	return (fs->flags & EXT2_FLAG_IB_DIRTY);
	}

	/*
	* Check to see if a filesystem's block bitmap is dirty
	*/
	int ext2fs_test_bb_dirty(ext2_filsys fs)
	{
	return (fs->flags & EXT2_FLAG_BB_DIRTY);
	}

	/*
	* Return the group # of a block
	*/
	int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
	{
	return (blk - fs->super->s_first_data_block) /
	fs->super->s_blocks_per_group;
	}

	/*
	* Return the group # of an inode number
	*/
	int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
	{
	return (ino - 1) / fs->super->s_inodes_per_group;
	}

	blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
	struct ext2_inode *inode)
	{
	return inode->i_blocks -
	(inode->i_file_acl ? fs->blocksize >> 9 : 0);
	}









	__u16 ext2fs_swab16(__u16 val)
	{
	return (val >> 8) \| (val << 8);
	}

	__u32 ext2fs_swab32(__u32 val)
	{
	return ((val>>24) \| ((val>>8)&0xFF00) \|
	((val<<8)&0xFF0000) \| (val<<24));
	}

	int ext2fs_find_first_bit_set(void * addr, unsigned size)
	{
	char cp = (unsigned char ) addr;
	int res = 0, d0;

	if (!size)
	return 0;

	while ((size > res) && (*cp == 0)) {
	cp++;
	res += 8;
	}
	d0 = ffs(*cp);
	if (d0 == 0)
	return size;

	return res + d0 - 1;
	}

	int ext2fs_find_next_bit_set (void * addr, int size, int offset)
	{
	unsigned char * p;
	int set = 0, bit = offset & 7, res = 0, d0;

	res = offset >> 3;
	p = ((unsigned char *) addr) + res;

	if (bit) {
	set = ffs(*p & ~((1 << bit) - 1));
	if (set)
	return (offset & ~7) + set - 1;
	p++;
	res += 8;
	}
	while ((size > res) && (*p == 0)) {
	p++;
	res += 8;
	}
	d0 = ffs(*p);
	if (d0 == 0)
	return size;

	return (res + d0 - 1);
	}

	int ext2fs_test_generic_bitmap(ext2fs_generic_bitmap bitmap,
	blk_t bitno);

	int ext2fs_test_generic_bitmap(ext2fs_generic_bitmap bitmap,
	blk_t bitno)
	{
	if ((bitno < bitmap->start) \|\| (bitno > bitmap->end)) {
	ext2fs_warn_bitmap2(bitmap, EXT2FS_TEST_ERROR, bitno);
	return 0;
	}
	return ext2fs_test_bit(bitno - bitmap->start, bitmap->bitmap);
	}

	int ext2fs_mark_block_bitmap(ext2fs_block_bitmap bitmap,
	blk_t block)
	{
	return ext2fs_mark_generic_bitmap((ext2fs_generic_bitmap)
	bitmap,
	block);
	}

	int ext2fs_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
	blk_t block)
	{
	return ext2fs_unmark_generic_bitmap((ext2fs_generic_bitmap) bitmap,
	block);
	}

	int ext2fs_test_block_bitmap(ext2fs_block_bitmap bitmap,
	blk_t block)
	{
	return ext2fs_test_generic_bitmap((ext2fs_generic_bitmap) bitmap,
	block);
	}

	int ext2fs_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
	ext2_ino_t inode)
	{
	return ext2fs_mark_generic_bitmap((ext2fs_generic_bitmap) bitmap,
	inode);
	}

	int ext2fs_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
	ext2_ino_t inode)
	{
	return ext2fs_unmark_generic_bitmap((ext2fs_generic_bitmap) bitmap,
	inode);
	}

	int ext2fs_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
	ext2_ino_t inode)
	{
	return ext2fs_test_generic_bitmap((ext2fs_generic_bitmap) bitmap,
	inode);
	}

	void ext2fs_fast_mark_block_bitmap(ext2fs_block_bitmap bitmap,
	blk_t block)
	{
	#ifdef EXT2FS_DEBUG_FAST_OPS
	if ((block < bitmap->start) \|\| (block > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_MARK, block,
	bitmap->description);
	return;
	}
	#endif
	ext2fs_set_bit(block - bitmap->start, bitmap->bitmap);
	}

	void ext2fs_fast_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
	blk_t block)
	{
	#ifdef EXT2FS_DEBUG_FAST_OPS
	if ((block < bitmap->start) \|\| (block > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_UNMARK,
	block, bitmap->description);
	return;
	}
	#endif
	ext2fs_clear_bit(block - bitmap->start, bitmap->bitmap);
	}

	int ext2fs_fast_test_block_bitmap(ext2fs_block_bitmap bitmap,
	blk_t block)
	{
	#ifdef EXT2FS_DEBUG_FAST_OPS
	if ((block < bitmap->start) \|\| (block > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_TEST,
	block, bitmap->description);
	return 0;
	}
	#endif
	return ext2fs_test_bit(block - bitmap->start, bitmap->bitmap);
	}

	void ext2fs_fast_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
	ext2_ino_t inode)
	{
	#ifdef EXT2FS_DEBUG_FAST_OPS
	if ((inode < bitmap->start) \|\| (inode > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_INODE_MARK,
	inode, bitmap->description);
	return;
	}
	#endif
	ext2fs_set_bit(inode - bitmap->start, bitmap->bitmap);
	}

	void ext2fs_fast_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
	ext2_ino_t inode)
	{
	#ifdef EXT2FS_DEBUG_FAST_OPS
	if ((inode < bitmap->start) \|\| (inode > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_INODE_UNMARK,
	inode, bitmap->description);
	return;
	}
	#endif
	ext2fs_clear_bit(inode - bitmap->start, bitmap->bitmap);
	}

	int ext2fs_fast_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
	ext2_ino_t inode)
	{
	#ifdef EXT2FS_DEBUG_FAST_OPS
	if ((inode < bitmap->start) \|\| (inode > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_INODE_TEST,
	inode, bitmap->description);
	return 0;
	}
	#endif
	return ext2fs_test_bit(inode - bitmap->start, bitmap->bitmap);
	}

	blk_t ext2fs_get_block_bitmap_start(ext2fs_block_bitmap bitmap)
	{
	return bitmap->start;
	}

	ext2_ino_t ext2fs_get_inode_bitmap_start(ext2fs_inode_bitmap bitmap)
	{
	return bitmap->start;
	}

	blk_t ext2fs_get_block_bitmap_end(ext2fs_block_bitmap bitmap)
	{
	return bitmap->end;
	}

	ext2_ino_t ext2fs_get_inode_bitmap_end(ext2fs_inode_bitmap bitmap)
	{
	return bitmap->end;
	}

	int ext2fs_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
	blk_t block, int num)
	{
	int i;

	if ((block < bitmap->start) \|\| (block+num-1 > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_TEST,
	block, bitmap->description);
	return 0;
	}
	for (i=0; i < num; i++) {
	if (ext2fs_fast_test_block_bitmap(bitmap, block+i))
	return 0;
	}
	return 1;
	}

	int ext2fs_fast_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
	blk_t block, int num)
	{
	int i;

	#ifdef EXT2FS_DEBUG_FAST_OPS
	if ((block < bitmap->start) \|\| (block+num-1 > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_TEST,
	block, bitmap->description);
	return 0;
	}
	#endif
	for (i=0; i < num; i++) {
	if (ext2fs_fast_test_block_bitmap(bitmap, block+i))
	return 0;
	}
	return 1;
	}

	void ext2fs_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
	blk_t block, int num)
	{
	int i;

	if ((block < bitmap->start) \|\| (block+num-1 > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_MARK, block,
	bitmap->description);
	return;
	}
	for (i=0; i < num; i++)
	ext2fs_set_bit(block + i - bitmap->start, bitmap->bitmap);
	}

	void ext2fs_fast_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
	blk_t block, int num)
	{
	int i;

	#ifdef EXT2FS_DEBUG_FAST_OPS
	if ((block < bitmap->start) \|\| (block+num-1 > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_MARK, block,
	bitmap->description);
	return;
	}
	#endif
	for (i=0; i < num; i++)
	ext2fs_set_bit(block + i - bitmap->start, bitmap->bitmap);
	}

	void ext2fs_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
	blk_t block, int num)
	{
	int i;

	if ((block < bitmap->start) \|\| (block+num-1 > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_UNMARK, block,
	bitmap->description);
	return;
	}
	for (i=0; i < num; i++)
	ext2fs_clear_bit(block + i - bitmap->start, bitmap->bitmap);
	}

	void ext2fs_fast_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
	blk_t block, int num)
	{
	int i;

	#ifdef EXT2FS_DEBUG_FAST_OPS
	if ((block < bitmap->start) \|\| (block+num-1 > bitmap->end)) {
	ext2fs_warn_bitmap(EXT2_ET_BAD_BLOCK_UNMARK, block,
	bitmap->description);
	return;
	}
	#endif
	for (i=0; i < num; i++)
	ext2fs_clear_bit(block + i - bitmap->start, bitmap->bitmap);
	}