2 * bitops.h --- Bitmap frobbing code. The byte swapping routines are
5 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
8 * This file may be redistributed under the terms of the GNU Public
12 * i386 bitops operations taken from <asm/bitops.h>, Copyright 1992,
19 extern int ext2fs_set_bit(unsigned int nr,void * addr);
20 extern int ext2fs_clear_bit(unsigned int nr, void * addr);
21 extern int ext2fs_test_bit(unsigned int nr, const void * addr);
22 extern __u16 ext2fs_swab16(__u16 val);
23 extern __u32 ext2fs_swab32(__u32 val);
25 #ifdef WORDS_BIGENDIAN
26 #define ext2fs_cpu_to_le32(x) ext2fs_swab32((x))
27 #define ext2fs_le32_to_cpu(x) ext2fs_swab32((x))
28 #define ext2fs_cpu_to_le16(x) ext2fs_swab16((x))
29 #define ext2fs_le16_to_cpu(x) ext2fs_swab16((x))
30 #define ext2fs_cpu_to_be32(x) ((__u32)(x))
31 #define ext2fs_be32_to_cpu(x) ((__u32)(x))
32 #define ext2fs_cpu_to_be16(x) ((__u16)(x))
33 #define ext2fs_be16_to_cpu(x) ((__u16)(x))
35 #define ext2fs_cpu_to_le32(x) ((__u32)(x))
36 #define ext2fs_le32_to_cpu(x) ((__u32)(x))
37 #define ext2fs_cpu_to_le16(x) ((__u16)(x))
38 #define ext2fs_le16_to_cpu(x) ((__u16)(x))
39 #define ext2fs_cpu_to_be32(x) ext2fs_swab32((x))
40 #define ext2fs_be32_to_cpu(x) ext2fs_swab32((x))
41 #define ext2fs_cpu_to_be16(x) ext2fs_swab16((x))
42 #define ext2fs_be16_to_cpu(x) ext2fs_swab16((x))
46 * EXT2FS bitmap manipulation routines.
49 /* Support for sending warning messages from the inline subroutines */
50 extern const char *ext2fs_block_string;
51 extern const char *ext2fs_inode_string;
52 extern const char *ext2fs_mark_string;
53 extern const char *ext2fs_unmark_string;
54 extern const char *ext2fs_test_string;
55 extern void ext2fs_warn_bitmap(errcode_t errcode, unsigned long arg,
56 const char *description);
57 extern void ext2fs_warn_bitmap2(ext2fs_generic_bitmap bitmap,
58 int code, unsigned long arg);
60 extern int ext2fs_mark_block_bitmap(ext2fs_block_bitmap bitmap, blk_t block);
61 extern int ext2fs_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
63 extern int ext2fs_test_block_bitmap(ext2fs_block_bitmap bitmap, blk_t block);
65 extern int ext2fs_mark_inode_bitmap(ext2fs_inode_bitmap bitmap, ext2_ino_t inode);
66 extern int ext2fs_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
68 extern int ext2fs_test_inode_bitmap(ext2fs_inode_bitmap bitmap, ext2_ino_t inode);
70 extern void ext2fs_fast_mark_block_bitmap(ext2fs_block_bitmap bitmap,
72 extern void ext2fs_fast_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
74 extern int ext2fs_fast_test_block_bitmap(ext2fs_block_bitmap bitmap,
77 extern void ext2fs_fast_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
79 extern void ext2fs_fast_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
81 extern int ext2fs_fast_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
83 extern blk_t ext2fs_get_block_bitmap_start(ext2fs_block_bitmap bitmap);
84 extern ext2_ino_t ext2fs_get_inode_bitmap_start(ext2fs_inode_bitmap bitmap);
85 extern blk_t ext2fs_get_block_bitmap_end(ext2fs_block_bitmap bitmap);
86 extern ext2_ino_t ext2fs_get_inode_bitmap_end(ext2fs_inode_bitmap bitmap);
88 extern void ext2fs_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
89 blk_t block, int num);
90 extern void ext2fs_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
91 blk_t block, int num);
92 extern int ext2fs_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
93 blk_t block, int num);
94 extern void ext2fs_fast_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
95 blk_t block, int num);
96 extern void ext2fs_fast_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
97 blk_t block, int num);
98 extern int ext2fs_fast_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
99 blk_t block, int num);
100 extern void ext2fs_set_bitmap_padding(ext2fs_generic_bitmap map);
102 /* These two routines moved to gen_bitmap.c */
103 extern int ext2fs_mark_generic_bitmap(ext2fs_generic_bitmap bitmap,
105 extern int ext2fs_unmark_generic_bitmap(ext2fs_generic_bitmap bitmap,