xref: /external/e2fsprogs/lib/ext2fs/bitops.h

/*
 * bitops.h --- Bitmap frobbing code.  The byte swapping routines are
 * 	also included here.
 *
 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
 *
 * %Begin-Header%
 * This file may be redistributed under the terms of the GNU Library
 * General Public License, version 2.
 * %End-Header%
 */

#ifdef WORDS_BIGENDIAN
#define ext2fs_cpu_to_le64(x) ext2fs_swab64((x))
#define ext2fs_le64_to_cpu(x) ext2fs_swab64((x))
#define ext2fs_cpu_to_le32(x) ext2fs_swab32((x))
#define ext2fs_le32_to_cpu(x) ext2fs_swab32((x))
#define ext2fs_cpu_to_le16(x) ext2fs_swab16((x))
#define ext2fs_le16_to_cpu(x) ext2fs_swab16((x))
#define ext2fs_cpu_to_be64(x) ((__u64)(x))
#define ext2fs_be64_to_cpu(x) ((__u64)(x))
#define ext2fs_cpu_to_be32(x) ((__u32)(x))
#define ext2fs_be32_to_cpu(x) ((__u32)(x))
#define ext2fs_cpu_to_be16(x) ((__u16)(x))
#define ext2fs_be16_to_cpu(x) ((__u16)(x))
#else
#define ext2fs_cpu_to_le64(x) ((__u64)(x))
#define ext2fs_le64_to_cpu(x) ((__u64)(x))
#define ext2fs_cpu_to_le32(x) ((__u32)(x))
#define ext2fs_le32_to_cpu(x) ((__u32)(x))
#define ext2fs_cpu_to_le16(x) ((__u16)(x))
#define ext2fs_le16_to_cpu(x) ((__u16)(x))
#define ext2fs_cpu_to_be64(x) ext2fs_swab64((x))
#define ext2fs_be64_to_cpu(x) ext2fs_swab64((x))
#define ext2fs_cpu_to_be32(x) ext2fs_swab32((x))
#define ext2fs_be32_to_cpu(x) ext2fs_swab32((x))
#define ext2fs_cpu_to_be16(x) ext2fs_swab16((x))
#define ext2fs_be16_to_cpu(x) ext2fs_swab16((x))
#endif

/*
 * EXT2FS bitmap manipulation routines.
 */

/* Support for sending warning messages from the inline subroutines */
extern const char *ext2fs_block_string;
extern const char *ext2fs_inode_string;
extern const char *ext2fs_mark_string;
extern const char *ext2fs_unmark_string;
extern const char *ext2fs_test_string;
extern void ext2fs_warn_bitmap(errcode_t errcode, unsigned long arg,
			       const char *description);
extern void ext2fs_warn_bitmap2(ext2fs_generic_bitmap bitmap,
				int code, unsigned long arg);

#ifdef NO_INLINE_FUNCS
extern void ext2fs_fast_set_bit(unsigned int nr,void * addr);
extern void ext2fs_fast_clear_bit(unsigned int nr, void * addr);
extern void ext2fs_fast_set_bit64(__u64 nr,void * addr);
extern void ext2fs_fast_clear_bit64(__u64 nr, void * addr);
extern __u16 ext2fs_swab16(__u16 val);
extern __u32 ext2fs_swab32(__u32 val);
extern __u64 ext2fs_swab64(__u64 val);

extern int ext2fs_mark_block_bitmap(ext2fs_block_bitmap bitmap, blk_t block);
extern int ext2fs_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
				       blk_t block);
extern int ext2fs_test_block_bitmap(ext2fs_block_bitmap bitmap, blk_t block);

extern int ext2fs_mark_inode_bitmap(ext2fs_inode_bitmap bitmap, ext2_ino_t inode);
extern int ext2fs_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
				       ext2_ino_t inode);
extern int ext2fs_test_inode_bitmap(ext2fs_inode_bitmap bitmap, ext2_ino_t inode);

extern void ext2fs_fast_mark_block_bitmap(ext2fs_block_bitmap bitmap,
					  blk_t block);
extern void ext2fs_fast_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
					    blk_t block);
extern int ext2fs_fast_test_block_bitmap(ext2fs_block_bitmap bitmap,
					 blk_t block);

extern void ext2fs_fast_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
					  ext2_ino_t inode);
extern void ext2fs_fast_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
					    ext2_ino_t inode);
extern int ext2fs_fast_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
					 ext2_ino_t inode);
extern blk_t ext2fs_get_block_bitmap_start(ext2fs_block_bitmap bitmap);
extern ext2_ino_t ext2fs_get_inode_bitmap_start(ext2fs_inode_bitmap bitmap);
extern blk_t ext2fs_get_block_bitmap_end(ext2fs_block_bitmap bitmap);
extern ext2_ino_t ext2fs_get_inode_bitmap_end(ext2fs_inode_bitmap bitmap);

extern void ext2fs_fast_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
						blk_t block, int num);
extern void ext2fs_fast_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
						  blk_t block, int num);
extern int ext2fs_fast_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
					       blk_t block, int num);
#endif

/* These functions routines moved to gen_bitmap.c */
extern void ext2fs_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
					   blk_t block, int num);
extern void ext2fs_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
					     blk_t block, int num);
extern int ext2fs_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
					  blk_t block, int num);
extern int ext2fs_test_inode_bitmap_range(ext2fs_inode_bitmap bitmap,
					  ino_t inode, int num);
extern int ext2fs_mark_generic_bitmap(ext2fs_generic_bitmap bitmap,
					 __u32 bitno);
extern int ext2fs_unmark_generic_bitmap(ext2fs_generic_bitmap bitmap,
					   blk_t bitno);
extern int ext2fs_test_generic_bitmap(ext2fs_generic_bitmap bitmap,
				      blk_t bitno);
extern int ext2fs_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
					  blk_t block, int num);
extern void ext2fs_set_bitmap_padding(ext2fs_generic_bitmap map);
extern __u32 ext2fs_get_generic_bitmap_start(ext2fs_generic_bitmap bitmap);
extern __u32 ext2fs_get_generic_bitmap_end(ext2fs_generic_bitmap bitmap);

/* 64-bit versions */

#ifdef NO_INLINE_FUNCS
extern int ext2fs_mark_block_bitmap2(ext2fs_block_bitmap bitmap,
				     blk64_t block);
extern int ext2fs_unmark_block_bitmap2(ext2fs_block_bitmap bitmap,
				       blk64_t block);
extern int ext2fs_test_block_bitmap2(ext2fs_block_bitmap bitmap,
				     blk64_t block);

extern int ext2fs_mark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
				     ext2_ino_t inode);
extern int ext2fs_unmark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
				       ext2_ino_t inode);
extern int ext2fs_test_inode_bitmap2(ext2fs_inode_bitmap bitmap,
				     ext2_ino_t inode);

extern void ext2fs_fast_mark_block_bitmap2(ext2fs_block_bitmap bitmap,
					   blk64_t block);
extern void ext2fs_fast_unmark_block_bitmap2(ext2fs_block_bitmap bitmap,
					     blk64_t block);
extern int ext2fs_fast_test_block_bitmap2(ext2fs_block_bitmap bitmap,
					  blk64_t block);

extern void ext2fs_fast_mark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
					   ext2_ino_t inode);
extern void ext2fs_fast_unmark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
					    ext2_ino_t inode);
extern int ext2fs_fast_test_inode_bitmap2(ext2fs_inode_bitmap bitmap,
					  ext2_ino_t inode);
extern errcode_t ext2fs_find_first_zero_block_bitmap2(ext2fs_block_bitmap bitmap,
						      blk64_t start,
						      blk64_t end,
						      blk64_t *out);
extern errcode_t ext2fs_find_first_zero_inode_bitmap2(ext2fs_inode_bitmap bitmap,
						      ext2_ino_t start,
						      ext2_ino_t end,
						      ext2_ino_t *out);
extern blk64_t ext2fs_get_block_bitmap_start2(ext2fs_block_bitmap bitmap);
extern ext2_ino_t ext2fs_get_inode_bitmap_start2(ext2fs_inode_bitmap bitmap);
extern blk64_t ext2fs_get_block_bitmap_end2(ext2fs_block_bitmap bitmap);
extern ext2_ino_t ext2fs_get_inode_bitmap_end2(ext2fs_inode_bitmap bitmap);

extern int ext2fs_fast_test_block_bitmap_range2(ext2fs_block_bitmap bitmap,
						blk64_t block,
						unsigned int num);
extern void ext2fs_fast_mark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
						 blk64_t block,
						 unsigned int num);
extern void ext2fs_fast_unmark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
						   blk64_t block,
						   unsigned int num);
#endif

/* These routines moved to gen_bitmap64.c */
extern void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
extern errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
					     ext2fs_generic_bitmap bm1,
					     ext2fs_generic_bitmap bm2);
extern void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
extern int ext2fs_mark_generic_bmap(ext2fs_generic_bitmap bitmap,
				    blk64_t bitno);
extern int ext2fs_unmark_generic_bmap(ext2fs_generic_bitmap bitmap,
				      blk64_t bitno);
extern int ext2fs_test_generic_bmap(ext2fs_generic_bitmap bitmap,
				    blk64_t bitno);
extern int ext2fs_test_block_bitmap_range2(ext2fs_block_bitmap bitmap,
					   blk64_t block, unsigned int num);
extern __u64 ext2fs_get_generic_bmap_start(ext2fs_generic_bitmap bitmap);
extern __u64 ext2fs_get_generic_bmap_end(ext2fs_generic_bitmap bitmap);
extern int ext2fs_test_block_bitmap_range2(ext2fs_block_bitmap bitmap,
					   blk64_t block, unsigned int num);
extern void ext2fs_mark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
					    blk64_t block, unsigned int num);
extern void ext2fs_unmark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
					      blk64_t block, unsigned int num);
extern errcode_t ext2fs_find_first_zero_generic_bmap(ext2fs_generic_bitmap bitmap,
						     __u64 start, __u64 end,
						     __u64 *out);

/*
 * The inline routines themselves...
 *
 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
 * functions at all; they will be included as normal functions in
 * inline.c
 */
#ifdef NO_INLINE_FUNCS
#if (defined(__GNUC__) && (defined(__i386__) || defined(__i486__) || \
			   defined(__i586__)))
	/* This prevents bitops.c from trying to include the C */
	/* function version of these functions */
#define _EXT2_HAVE_ASM_BITOPS_
#endif
#endif /* NO_INLINE_FUNCS */

#if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
#ifdef INCLUDE_INLINE_FUNCS
#if (__STDC_VERSION__ >= 199901L)
#define _INLINE_ extern inline
#else
#define _INLINE_ inline
#endif
#else /* !INCLUDE_INLINE FUNCS */
#if (__STDC_VERSION__ >= 199901L)
#define _INLINE_ inline
#else /* not C99 */
#ifdef __GNUC__
#define _INLINE_ extern __inline__
#else				/* For Watcom C */
#define _INLINE_ extern inline
#endif /* __GNUC__ */
#endif /* __STDC_VERSION__ >= 199901L */
#endif /* INCLUDE_INLINE_FUNCS */

/*
 * Fast bit set/clear functions that doesn't need to return the
 * previous bit value.
 */

_INLINE_ void ext2fs_fast_set_bit(unsigned int nr,void * addr)
{
	unsigned char	*ADDR = (unsigned char *) addr;

	ADDR += nr >> 3;
	*ADDR |= (unsigned char) (1 << (nr & 0x07));
}

_INLINE_ void ext2fs_fast_clear_bit(unsigned int nr, void * addr)
{
	unsigned char	*ADDR = (unsigned char *) addr;

	ADDR += nr >> 3;
	*ADDR &= (unsigned char) ~(1 << (nr & 0x07));
}


_INLINE_ void ext2fs_fast_set_bit64(__u64 nr, void * addr)
{
	unsigned char	*ADDR = (unsigned char *) addr;

	ADDR += nr >> 3;
	*ADDR |= (unsigned char) (1 << (nr & 0x07));
}

_INLINE_ void ext2fs_fast_clear_bit64(__u64 nr, void * addr)
{
	unsigned char	*ADDR = (unsigned char *) addr;

	ADDR += nr >> 3;
	*ADDR &= (unsigned char) ~(1 << (nr & 0x07));
}


#if ((defined __GNUC__) && !defined(_EXT2_USE_C_VERSIONS_) && \
     (defined(__i386__) || defined(__i486__) || defined(__i586__)))

#define _EXT2_HAVE_ASM_BITOPS_
#define _EXT2_HAVE_ASM_SWAB_

/*
 * These are done by inline assembly for speed reasons.....
 *
 * All bitoperations return 0 if the bit was cleared before the
 * operation and != 0 if it was not.  Bit 0 is the LSB of addr; bit 32
 * is the LSB of (addr+1).
 */

/*
 * Some hacks to defeat gcc over-optimizations..
 */
struct __dummy_h { unsigned long a[100]; };
#define EXT2FS_ADDR (*(struct __dummy_h *) addr)
#define EXT2FS_CONST_ADDR (*(const struct __dummy_h *) addr)

_INLINE_ int ext2fs_set_bit(unsigned int nr, void * addr)
{
	int oldbit;

	addr = (void *) (((unsigned char *) addr) + (nr >> 3));
	__asm__ __volatile__("btsl %2,%1\n\tsbbl %0,%0"
		:"=r" (oldbit),"+m" (EXT2FS_ADDR)
		:"r" (nr & 7));
	return oldbit;
}

_INLINE_ int ext2fs_clear_bit(unsigned int nr, void * addr)
{
	int oldbit;

	addr = (void *) (((unsigned char *) addr) + (nr >> 3));
	__asm__ __volatile__("btrl %2,%1\n\tsbbl %0,%0"
		:"=r" (oldbit),"+m" (EXT2FS_ADDR)
		:"r" (nr & 7));
	return oldbit;
}

_INLINE_ int ext2fs_test_bit(unsigned int nr, const void * addr)
{
	int oldbit;

	addr = (const void *) (((const unsigned char *) addr) + (nr >> 3));
	__asm__ __volatile__("btl %2,%1\n\tsbbl %0,%0"
		:"=r" (oldbit)
		:"m" (EXT2FS_CONST_ADDR),"r" (nr & 7));
	return oldbit;
}

_INLINE_ __u32 ext2fs_swab32(__u32 val)
{
#ifdef EXT2FS_REQUIRE_486
	__asm__("bswap %0" : "=r" (val) : "0" (val));
#else
	__asm__("xchgb %b0,%h0\n\t"	/* swap lower bytes	*/
		"rorl $16,%0\n\t"	/* swap words		*/
		"xchgb %b0,%h0"		/* swap higher bytes	*/
		:"=q" (val)
		: "0" (val));
#endif
	return val;
}

_INLINE_ __u16 ext2fs_swab16(__u16 val)
{
	__asm__("xchgb %b0,%h0"		/* swap bytes		*/ \
		: "=q" (val) \
		:  "0" (val)); \
		return val;
}

#undef EXT2FS_ADDR

#endif	/* i386 */


#if !defined(_EXT2_HAVE_ASM_SWAB_)

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

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

#endif /* !_EXT2_HAVE_ASM_SWAB */

_INLINE_ __u64 ext2fs_swab64(__u64 val)
{
	return (ext2fs_swab32((__u32) (val >> 32)) |
		(((__u64)ext2fs_swab32(val & 0xFFFFFFFFUL)) << 32));
}

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

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

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

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

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

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

_INLINE_ void ext2fs_fast_mark_block_bitmap(ext2fs_block_bitmap bitmap,
					    blk_t block)
{
	ext2fs_mark_generic_bitmap((ext2fs_generic_bitmap) bitmap, block);
}

_INLINE_ void ext2fs_fast_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
					      blk_t block)
{
	ext2fs_unmark_generic_bitmap((ext2fs_generic_bitmap) bitmap, block);
}

_INLINE_ int ext2fs_fast_test_block_bitmap(ext2fs_block_bitmap bitmap,
					    blk_t block)
{
	return ext2fs_test_generic_bitmap((ext2fs_generic_bitmap) bitmap,
					  block);
}

_INLINE_ void ext2fs_fast_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
					    ext2_ino_t inode)
{
	ext2fs_mark_generic_bitmap((ext2fs_generic_bitmap) bitmap, inode);
}

_INLINE_ void ext2fs_fast_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
					      ext2_ino_t inode)
{
	ext2fs_unmark_generic_bitmap((ext2fs_generic_bitmap) bitmap, inode);
}

_INLINE_ int ext2fs_fast_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
					   ext2_ino_t inode)
{
	return ext2fs_test_generic_bitmap((ext2fs_generic_bitmap) bitmap,
					  inode);
}

_INLINE_ blk_t ext2fs_get_block_bitmap_start(ext2fs_block_bitmap bitmap)
{
	return ext2fs_get_generic_bitmap_start((ext2fs_generic_bitmap) bitmap);
}

_INLINE_ ext2_ino_t ext2fs_get_inode_bitmap_start(ext2fs_inode_bitmap bitmap)
{
	return ext2fs_get_generic_bitmap_start((ext2fs_generic_bitmap) bitmap);
}

_INLINE_ blk_t ext2fs_get_block_bitmap_end(ext2fs_block_bitmap bitmap)
{
	return ext2fs_get_generic_bitmap_end((ext2fs_generic_bitmap) bitmap);
}

_INLINE_ ext2_ino_t ext2fs_get_inode_bitmap_end(ext2fs_inode_bitmap bitmap)
{
	return ext2fs_get_generic_bitmap_end((ext2fs_generic_bitmap) bitmap);
}

_INLINE_ int ext2fs_fast_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
						 blk_t block, int num)
{
	return ext2fs_test_block_bitmap_range(bitmap, block, num);
}

_INLINE_ void ext2fs_fast_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
						  blk_t block, int num)
{
	ext2fs_mark_block_bitmap_range(bitmap, block, num);
}

_INLINE_ void ext2fs_fast_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
						    blk_t block, int num)
{
	ext2fs_unmark_block_bitmap_range(bitmap, block, num);
}

/* 64-bit versions */

_INLINE_ int ext2fs_mark_block_bitmap2(ext2fs_block_bitmap bitmap,
				       blk64_t block)
{
	return ext2fs_mark_generic_bmap((ext2fs_generic_bitmap) bitmap,
					block);
}

_INLINE_ int ext2fs_unmark_block_bitmap2(ext2fs_block_bitmap bitmap,
					 blk64_t block)
{
	return ext2fs_unmark_generic_bmap((ext2fs_generic_bitmap) bitmap, block);
}

_INLINE_ int ext2fs_test_block_bitmap2(ext2fs_block_bitmap bitmap,
				       blk64_t block)
{
	return ext2fs_test_generic_bmap((ext2fs_generic_bitmap) bitmap,
					block);
}

_INLINE_ int ext2fs_mark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
				       ext2_ino_t inode)
{
	return ext2fs_mark_generic_bmap((ext2fs_generic_bitmap) bitmap,
					inode);
}

_INLINE_ int ext2fs_unmark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
					 ext2_ino_t inode)
{
	return ext2fs_unmark_generic_bmap((ext2fs_generic_bitmap) bitmap,
					  inode);
}

_INLINE_ int ext2fs_test_inode_bitmap2(ext2fs_inode_bitmap bitmap,
				       ext2_ino_t inode)
{
	return ext2fs_test_generic_bmap((ext2fs_generic_bitmap) bitmap,
					inode);
}

_INLINE_ void ext2fs_fast_mark_block_bitmap2(ext2fs_block_bitmap bitmap,
					     blk64_t block)
{
	ext2fs_mark_generic_bmap((ext2fs_generic_bitmap) bitmap, block);
}

_INLINE_ void ext2fs_fast_unmark_block_bitmap2(ext2fs_block_bitmap bitmap,
					       blk64_t block)
{
	ext2fs_unmark_generic_bmap((ext2fs_generic_bitmap) bitmap, block);
}

_INLINE_ int ext2fs_fast_test_block_bitmap2(ext2fs_block_bitmap bitmap,
					    blk64_t block)
{
	return ext2fs_test_generic_bmap((ext2fs_generic_bitmap) bitmap,
					block);
}

_INLINE_ void ext2fs_fast_mark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
					     ext2_ino_t inode)
{
	ext2fs_mark_generic_bmap((ext2fs_generic_bitmap) bitmap, inode);
}

_INLINE_ void ext2fs_fast_unmark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
					       ext2_ino_t inode)
{
	ext2fs_unmark_generic_bmap((ext2fs_generic_bitmap) bitmap, inode);
}

_INLINE_ int ext2fs_fast_test_inode_bitmap2(ext2fs_inode_bitmap bitmap,
					    ext2_ino_t inode)
{
	return ext2fs_test_generic_bmap((ext2fs_generic_bitmap) bitmap,
					inode);
}

_INLINE_ errcode_t ext2fs_find_first_zero_block_bitmap2(ext2fs_block_bitmap bitmap,
							blk64_t start,
							blk64_t end,
							blk64_t *out)
{
	__u64 o;
	errcode_t rv;

	rv = ext2fs_find_first_zero_generic_bmap((ext2fs_generic_bitmap) bitmap,
						 start, end, &o);
	if (!rv)
		*out = o;
	return rv;
}

_INLINE_ errcode_t ext2fs_find_first_zero_inode_bitmap2(ext2fs_inode_bitmap bitmap,
							ext2_ino_t start,
							ext2_ino_t end,
							ext2_ino_t *out)
{
	__u64 o;
	errcode_t rv;

	rv = ext2fs_find_first_zero_generic_bmap((ext2fs_generic_bitmap) bitmap,
						 start, end, &o);
	if (!rv)
		*out = (ext2_ino_t) o;
	return rv;
}

_INLINE_ blk64_t ext2fs_get_block_bitmap_start2(ext2fs_block_bitmap bitmap)
{
	return ext2fs_get_generic_bmap_start((ext2fs_generic_bitmap) bitmap);
}

_INLINE_ ext2_ino_t ext2fs_get_inode_bitmap_start2(ext2fs_inode_bitmap bitmap)
{
	return (ext2_ino_t) ext2fs_get_generic_bmap_start((ext2fs_generic_bitmap) bitmap);
}

_INLINE_ blk64_t ext2fs_get_block_bitmap_end2(ext2fs_block_bitmap bitmap)
{
	return ext2fs_get_generic_bmap_end((ext2fs_generic_bitmap) bitmap);
}

_INLINE_ ext2_ino_t ext2fs_get_inode_bitmap_end2(ext2fs_inode_bitmap bitmap)
{
	return (ext2_ino_t) ext2fs_get_generic_bmap_end((ext2fs_generic_bitmap) bitmap);
}

_INLINE_ int ext2fs_fast_test_block_bitmap_range2(ext2fs_block_bitmap bitmap,
						  blk64_t block,
						  unsigned int num)
{
	return ext2fs_test_block_bitmap_range2(bitmap, block, num);
}

_INLINE_ void ext2fs_fast_mark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
						   blk64_t block,
						   unsigned int num)
{
	ext2fs_mark_block_bitmap_range2(bitmap, block, num);
}

_INLINE_ void ext2fs_fast_unmark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
						     blk64_t block,
						     unsigned int num)
{
	ext2fs_unmark_block_bitmap_range2(bitmap, block, num);
}

#undef _INLINE_
#endif

#ifndef _EXT2_HAVE_ASM_BITOPS_
extern int ext2fs_set_bit(unsigned int nr,void * addr);
extern int ext2fs_clear_bit(unsigned int nr, void * addr);
extern int ext2fs_test_bit(unsigned int nr, const void * addr);
#endif

extern int ext2fs_set_bit64(__u64 nr,void * addr);
extern int ext2fs_clear_bit64(__u64 nr, void * addr);
extern int ext2fs_test_bit64(__u64 nr, const void * addr);
extern unsigned int ext2fs_bitcount(const void *addr, unsigned int nbytes);