Linux Kernel  3.7.1
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ext2_fs.h
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1 /*
2  * linux/include/linux/ext2_fs.h
3  *
4  * Copyright (C) 1992, 1993, 1994, 1995
5  * Remy Card ([email protected])
6  * Laboratoire MASI - Institut Blaise Pascal
7  * Universite Pierre et Marie Curie (Paris VI)
8  *
9  * from
10  *
11  * linux/include/linux/minix_fs.h
12  *
13  * Copyright (C) 1991, 1992 Linus Torvalds
14  */
15 
16 #ifndef _LINUX_EXT2_FS_H
17 #define _LINUX_EXT2_FS_H
18 
19 #include <linux/types.h>
20 #include <linux/magic.h>
21 
22 #define EXT2_NAME_LEN 255
23 
24 /*
25  * Maximal count of links to a file
26  */
27 #define EXT2_LINK_MAX 32000
28 
29 #define EXT2_SB_MAGIC_OFFSET 0x38
30 #define EXT2_SB_BLOCKS_OFFSET 0x04
31 #define EXT2_SB_BSIZE_OFFSET 0x18
32 
33 static inline u64 ext2_image_size(void *ext2_sb)
34 {
35  __u8 *p = ext2_sb;
37  return 0;
38  return (u64)le32_to_cpup((__le32 *)(p + EXT2_SB_BLOCKS_OFFSET)) <<
40 }
41 
42 #endif /* _LINUX_EXT2_FS_H */