1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  *	fs/bfs/bfs.h
4  *	Copyright (C) 1999 Tigran Aivazian <tigran@veritas.com>
5  */
6 #ifndef _FS_BFS_BFS_H
7 #define _FS_BFS_BFS_H
8 
9 #include <linux/bfs_fs.h>
10 
11 /*
12  * BFS file system in-core superblock info
13  */
14 struct bfs_sb_info {
15 	unsigned long si_blocks;
16 	unsigned long si_freeb;
17 	unsigned long si_freei;
18 	unsigned long si_lf_eblk;
19 	unsigned long si_lasti;
20 	unsigned long *si_imap;
21 	struct mutex bfs_lock;
22 };
23 
24 /*
25  * BFS file system in-core inode info
26  */
27 struct bfs_inode_info {
28 	unsigned long i_dsk_ino; /* inode number from the disk, can be 0 */
29 	unsigned long i_sblock;
30 	unsigned long i_eblock;
31 	struct inode vfs_inode;
32 };
33 
BFS_SB(struct super_block * sb)34 static inline struct bfs_sb_info *BFS_SB(struct super_block *sb)
35 {
36 	return sb->s_fs_info;
37 }
38 
BFS_I(struct inode * inode)39 static inline struct bfs_inode_info *BFS_I(struct inode *inode)
40 {
41 	return container_of(inode, struct bfs_inode_info, vfs_inode);
42 }
43 
44 
45 #define printf(format, args...) \
46 	printk(KERN_ERR "BFS-fs: %s(): " format, __func__, ## args)
47 
48 /* inode.c */
49 extern struct inode *bfs_iget(struct super_block *sb, unsigned long ino);
50 extern void bfs_dump_imap(const char *, struct super_block *);
51 
52 /* file.c */
53 extern const struct inode_operations bfs_file_inops;
54 extern const struct file_operations bfs_file_operations;
55 extern const struct address_space_operations bfs_aops;
56 
57 /* dir.c */
58 extern const struct inode_operations bfs_dir_inops;
59 extern const struct file_operations bfs_dir_operations;
60 
61 #endif /* _FS_BFS_BFS_H */
62