1 #ifndef _UFS_UFS_H
2 #define _UFS_UFS_H 1
3
4 #define UFS_MAX_GROUP_LOADED 8
5 #define UFS_CGNO_EMPTY ((unsigned)-1)
6
7 struct ufs_sb_private_info;
8 struct ufs_cg_private_info;
9 struct ufs_csum;
10
11 struct ufs_sb_info {
12 struct ufs_sb_private_info * s_uspi;
13 struct ufs_csum * s_csp;
14 unsigned s_bytesex;
15 unsigned s_flags;
16 struct buffer_head ** s_ucg;
17 struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED];
18 unsigned s_cgno[UFS_MAX_GROUP_LOADED];
19 unsigned short s_cg_loaded;
20 unsigned s_mount_opt;
21 };
22
23 struct ufs_inode_info {
24 union {
25 __fs32 i_data[15];
26 __u8 i_symlink[2 * 4 * 15];
27 __fs64 u2_i_data[15];
28 } i_u1;
29 __u32 i_flags;
30 __u32 i_shadow;
31 __u32 i_unused1;
32 __u32 i_unused2;
33 __u32 i_oeftflag;
34 __u16 i_osync;
35 __u64 i_lastfrag;
36 __u32 i_dir_start_lookup;
37 struct inode vfs_inode;
38 };
39
40 /* mount options */
41 #define UFS_MOUNT_ONERROR 0x0000000F
42 #define UFS_MOUNT_ONERROR_PANIC 0x00000001
43 #define UFS_MOUNT_ONERROR_LOCK 0x00000002
44 #define UFS_MOUNT_ONERROR_UMOUNT 0x00000004
45 #define UFS_MOUNT_ONERROR_REPAIR 0x00000008
46
47 #define UFS_MOUNT_UFSTYPE 0x0000FFF0
48 #define UFS_MOUNT_UFSTYPE_OLD 0x00000010
49 #define UFS_MOUNT_UFSTYPE_44BSD 0x00000020
50 #define UFS_MOUNT_UFSTYPE_SUN 0x00000040
51 #define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080
52 #define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100
53 #define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200
54 #define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400
55 #define UFS_MOUNT_UFSTYPE_HP 0x00000800
56 #define UFS_MOUNT_UFSTYPE_UFS2 0x00001000
57 #define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000
58
59 #define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt
60 #define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt
61 #define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt)
62
63 /*
64 * Debug code
65 */
66 #ifdef CONFIG_UFS_DEBUG
67 # define UFSD(f, a...) { \
68 printk ("UFSD (%s, %d): %s:", \
69 __FILE__, __LINE__, __func__); \
70 printk (f, ## a); \
71 }
72 #else
73 # define UFSD(f, a...) /**/
74 #endif
75
76 /* balloc.c */
77 extern void ufs_free_fragments (struct inode *, u64, unsigned);
78 extern void ufs_free_blocks (struct inode *, u64, unsigned);
79 extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
80 unsigned, int *, struct page *);
81
82 /* cylinder.c */
83 extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
84 extern void ufs_put_cylinder (struct super_block *, unsigned);
85
86 /* dir.c */
87 extern const struct inode_operations ufs_dir_inode_operations;
88 extern int ufs_add_link (struct dentry *, struct inode *);
89 extern ino_t ufs_inode_by_name(struct inode *, struct dentry *);
90 extern int ufs_make_empty(struct inode *, struct inode *);
91 extern struct ufs_dir_entry *ufs_find_entry(struct inode *, struct dentry *, struct page **);
92 extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *);
93 extern int ufs_empty_dir (struct inode *);
94 extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
95 extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
96 struct page *page, struct inode *inode);
97
98 /* file.c */
99 extern const struct inode_operations ufs_file_inode_operations;
100 extern const struct file_operations ufs_file_operations;
101 extern const struct address_space_operations ufs_aops;
102
103 /* ialloc.c */
104 extern void ufs_free_inode (struct inode *inode);
105 extern struct inode * ufs_new_inode (struct inode *, int);
106
107 /* inode.c */
108 extern struct inode *ufs_iget(struct super_block *, unsigned long);
109 extern int ufs_write_inode (struct inode *, int);
110 extern int ufs_sync_inode (struct inode *);
111 extern void ufs_delete_inode (struct inode *);
112 extern struct buffer_head * ufs_bread (struct inode *, unsigned, int, int *);
113 extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create);
114
115 /* namei.c */
116 extern const struct file_operations ufs_dir_operations;
117
118 /* super.c */
119 extern void ufs_warning (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));
120 extern void ufs_error (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));
121 extern void ufs_panic (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));
122
123 /* symlink.c */
124 extern const struct inode_operations ufs_fast_symlink_inode_operations;
125
126 /* truncate.c */
127 extern int ufs_truncate (struct inode *, loff_t);
128
129 static inline struct ufs_sb_info *UFS_SB(struct super_block *sb)
130 {
131 return sb->s_fs_info;
132 }
133
134 static inline struct ufs_inode_info *UFS_I(struct inode *inode)
135 {
136 return container_of(inode, struct ufs_inode_info, vfs_inode);
137 }
138
139 /*
140 * Give cylinder group number for a file system block.
141 * Give cylinder group block number for a file system block.
142 */
143 /* #define ufs_dtog(d) ((d) / uspi->s_fpg) */
144 static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b)
145 {
146 do_div(b, uspi->s_fpg);
147 return b;
148 }
149 /* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */
150 static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b)
151 {
152 return do_div(b, uspi->s_fpg);
153 }
154
155 #endif /* _UFS_UFS_H */
156
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