Linux Kernel  3.7.1
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bfs.h
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1 /*
2  * fs/bfs/bfs.h
3  * Copyright (C) 1999 Tigran Aivazian <[email protected]>
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 mutex bfs_lock;
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 */
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