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stmmac: add init/exit callback in plat_stmmacenet_data struct
[net-next-2.6.git] / include / linux / efs_fs_sb.h
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1da177e4
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1/*
2 * efs_fs_sb.h
3 *
4 * Copyright (c) 1999 Al Smith
5 *
6 * Portions derived from IRIX header files (c) 1988 Silicon Graphics
7 */
8
9#ifndef __EFS_FS_SB_H__
10#define __EFS_FS_SB_H__
11
bd71b5f7 12#include <linux/types.h>
e18fa700 13#include <linux/magic.h>
1da177e4
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14
15/* EFS superblock magic numbers */
16#define EFS_MAGIC 0x072959
17#define EFS_NEWMAGIC 0x07295a
18
19#define IS_EFS_MAGIC(x) ((x == EFS_MAGIC) || (x == EFS_NEWMAGIC))
20
21#define EFS_SUPER 1
22#define EFS_ROOTINODE 2
23
24/* efs superblock on disk */
25struct efs_super {
26 __be32 fs_size; /* size of filesystem, in sectors */
27 __be32 fs_firstcg; /* bb offset to first cg */
28 __be32 fs_cgfsize; /* size of cylinder group in bb's */
29 __be16 fs_cgisize; /* bb's of inodes per cylinder group */
30 __be16 fs_sectors; /* sectors per track */
31 __be16 fs_heads; /* heads per cylinder */
32 __be16 fs_ncg; /* # of cylinder groups in filesystem */
33 __be16 fs_dirty; /* fs needs to be fsck'd */
34 __be32 fs_time; /* last super-block update */
35 __be32 fs_magic; /* magic number */
36 char fs_fname[6]; /* file system name */
37 char fs_fpack[6]; /* file system pack name */
38 __be32 fs_bmsize; /* size of bitmap in bytes */
39 __be32 fs_tfree; /* total free data blocks */
40 __be32 fs_tinode; /* total free inodes */
41 __be32 fs_bmblock; /* bitmap location. */
42 __be32 fs_replsb; /* Location of replicated superblock. */
43 __be32 fs_lastialloc; /* last allocated inode */
44 char fs_spare[20]; /* space for expansion - MUST BE ZERO */
45 __be32 fs_checksum; /* checksum of volume portion of fs */
46};
47
48/* efs superblock information in memory */
49struct efs_sb_info {
50 __u32 fs_magic; /* superblock magic number */
51 __u32 fs_start; /* first block of filesystem */
52 __u32 first_block; /* first data block in filesystem */
53 __u32 total_blocks; /* total number of blocks in filesystem */
54 __u32 group_size; /* # of blocks a group consists of */
55 __u32 data_free; /* # of free data blocks */
56 __u32 inode_free; /* # of free inodes */
57 __u16 inode_blocks; /* # of blocks used for inodes in every grp */
58 __u16 total_groups; /* # of groups */
59};
60
61#endif /* __EFS_FS_SB_H__ */
62