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[mirror_ubuntu-bionic-kernel.git] / fs / bfs / bfs.h
1 /*
2 * fs/bfs/bfs.h
3 * Copyright (C) 1999 Tigran Aivazian <tigran@veritas.com>
4 */
5 #ifndef _FS_BFS_BFS_H
6 #define _FS_BFS_BFS_H
7
8 #include <linux/bfs_fs.h>
9
10 /*
11 * BFS file system in-core superblock info
12 */
13 struct bfs_sb_info {
14 unsigned long si_blocks;
15 unsigned long si_freeb;
16 unsigned long si_freei;
17 unsigned long si_lf_eblk;
18 unsigned long si_lasti;
19 unsigned long * si_imap;
20 struct buffer_head * si_sbh; /* buffer header w/superblock */
21 };
22
23 /*
24 * BFS file system in-core inode info
25 */
26 struct bfs_inode_info {
27 unsigned long i_dsk_ino; /* inode number from the disk, can be 0 */
28 unsigned long i_sblock;
29 unsigned long i_eblock;
30 struct inode vfs_inode;
31 };
32
33 static inline struct bfs_sb_info *BFS_SB(struct super_block *sb)
34 {
35 return sb->s_fs_info;
36 }
37
38 static inline struct bfs_inode_info *BFS_I(struct inode *inode)
39 {
40 return container_of(inode, struct bfs_inode_info, vfs_inode);
41 }
42
43
44 #define printf(format, args...) \
45 printk(KERN_ERR "BFS-fs: %s(): " format, __func__, ## args)
46
47 /* inode.c */
48 extern struct inode *bfs_iget(struct super_block *sb, unsigned long ino);
49
50 /* file.c */
51 extern const struct inode_operations bfs_file_inops;
52 extern const struct file_operations bfs_file_operations;
53 extern const struct address_space_operations bfs_aops;
54
55 /* dir.c */
56 extern const struct inode_operations bfs_dir_inops;
57 extern const struct file_operations bfs_dir_operations;
58
59 #endif /* _FS_BFS_BFS_H */