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bcd6d4ec CH |
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]; | |
f33219b7 | 26 | __u8 i_symlink[2 * 4 * 15]; |
bcd6d4ec CH |
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:", \ | |
9746077a | 69 | __FILE__, __LINE__, __func__); \ |
bcd6d4ec CH |
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; | |
bcd6d4ec CH |
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 */ | |
b55c460d | 108 | extern struct inode *ufs_iget(struct super_block *, unsigned long); |
bcd6d4ec CH |
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 */ |