/* vi: set sw=4 ts=4: *//* * 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 Public * License. * %End-Header% * * i386 bitops operations taken from <asm/bitops.h>, Copyright 1992, * Linus Torvalds. */#include <string.h>#include <strings.h>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);extern __u16 ext2fs_swab16(__u16 val);extern __u32 ext2fs_swab32(__u32 val);#ifdef WORDS_BIGENDIAN#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_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_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_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);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_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 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);extern void ext2fs_set_bitmap_padding(ext2fs_generic_bitmap map);/* These two routines moved to gen_bitmap.c */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);