/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 */
13struct 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 */
26struct 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
33static inline struct bfs_sb_info *BFS_SB(struct super_block *sb)
34{
35	return sb->s_fs_info;
36}
37
38static 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 */
48extern struct inode *bfs_iget(struct super_block *sb, unsigned long ino);
49
50/* file.c */
51extern const struct inode_operations bfs_file_inops;
52extern const struct file_operations bfs_file_operations;
53extern const struct address_space_operations bfs_aops;
54
55/* dir.c */
56extern const struct inode_operations bfs_dir_inops;
57extern const struct file_operations bfs_dir_operations;
58
59#endif /* _FS_BFS_BFS_H */