1 #ifndef _UFS_UFS_H
2 #define _UFS_UFS_H 1
3
4 #ifdef pr_fmt
5 #undef pr_fmt
6 #endif
7
8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9
10 #define UFS_MAX_GROUP_LOADED 8
11 #define UFS_CGNO_EMPTY ((unsigned)-1)
12
13 struct ufs_sb_private_info;
14 struct ufs_cg_private_info;
15 struct ufs_csum;
16
17 struct ufs_sb_info {
18 struct ufs_sb_private_info * s_uspi;
19 struct ufs_csum * s_csp;
20 unsigned s_bytesex;
21 unsigned s_flags;
22 struct buffer_head ** s_ucg;
23 struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED];
24 unsigned s_cgno[UFS_MAX_GROUP_LOADED];
25 unsigned short s_cg_loaded;
26 unsigned s_mount_opt;
27 struct super_block *sb;
28 int work_queued; /* non-zero if the delayed work is queued */
29 struct delayed_work sync_work; /* FS sync delayed work */
30 spinlock_t work_lock; /* protects sync_work and work_queued */
31 struct mutex s_lock;
32 };
33
34 struct ufs_inode_info {
35 union {
36 __fs32 i_data[15];
37 __u8 i_symlink[2 * 4 * 15];
38 __fs64 u2_i_data[15];
39 } i_u1;
40 __u32 i_flags;
41 __u32 i_shadow;
42 __u32 i_unused1;
43 __u32 i_unused2;
44 __u32 i_oeftflag;
45 __u16 i_osync;
46 __u64 i_lastfrag;
47 seqlock_t meta_lock;
48 struct mutex truncate_mutex;
49 __u32 i_dir_start_lookup;
50 struct inode vfs_inode;
51 };
52
53 /* mount options */
54 #define UFS_MOUNT_ONERROR 0x0000000F
55 #define UFS_MOUNT_ONERROR_PANIC 0x00000001
56 #define UFS_MOUNT_ONERROR_LOCK 0x00000002
57 #define UFS_MOUNT_ONERROR_UMOUNT 0x00000004
58 #define UFS_MOUNT_ONERROR_REPAIR 0x00000008
59
60 #define UFS_MOUNT_UFSTYPE 0x0000FFF0
61 #define UFS_MOUNT_UFSTYPE_OLD 0x00000010
62 #define UFS_MOUNT_UFSTYPE_44BSD 0x00000020
63 #define UFS_MOUNT_UFSTYPE_SUN 0x00000040
64 #define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080
65 #define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100
66 #define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200
67 #define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400
68 #define UFS_MOUNT_UFSTYPE_HP 0x00000800
69 #define UFS_MOUNT_UFSTYPE_UFS2 0x00001000
70 #define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000
71
72 #define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt
73 #define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt
74 #define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt)
75
76 /*
77 * Debug code
78 */
79 #ifdef CONFIG_UFS_DEBUG
80 # define UFSD(f, a...) { \
81 pr_debug("UFSD (%s, %d): %s:", \
82 __FILE__, __LINE__, __func__); \
83 pr_debug(f, ## a); \
84 }
85 #else
86 # define UFSD(f, a...) /**/
87 #endif
88
89 /* balloc.c */
90 extern void ufs_free_fragments (struct inode *, u64, unsigned);
91 extern void ufs_free_blocks (struct inode *, u64, unsigned);
92 extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
93 unsigned, int *, struct page *);
94
95 /* cylinder.c */
96 extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
97 extern void ufs_put_cylinder (struct super_block *, unsigned);
98
99 /* dir.c */
100 extern const struct inode_operations ufs_dir_inode_operations;
101 extern int ufs_add_link (struct dentry *, struct inode *);
102 extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *);
103 extern int ufs_make_empty(struct inode *, struct inode *);
104 extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **);
105 extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *);
106 extern int ufs_empty_dir (struct inode *);
107 extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
108 extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
109 struct page *page, struct inode *inode, bool update_times);
110
111 /* file.c */
112 extern const struct inode_operations ufs_file_inode_operations;
113 extern const struct file_operations ufs_file_operations;
114 extern const struct address_space_operations ufs_aops;
115
116 /* ialloc.c */
117 extern void ufs_free_inode (struct inode *inode);
118 extern struct inode * ufs_new_inode (struct inode *, umode_t);
119
120 /* inode.c */
121 extern struct inode *ufs_iget(struct super_block *, unsigned long);
122 extern int ufs_write_inode (struct inode *, struct writeback_control *);
123 extern int ufs_sync_inode (struct inode *);
124 extern void ufs_evict_inode (struct inode *);
125 extern int ufs_setattr(struct dentry *dentry, struct iattr *attr);
126
127 /* namei.c */
128 extern const struct file_operations ufs_dir_operations;
129
130 /* super.c */
131 extern __printf(3, 4)
132 void ufs_warning(struct super_block *, const char *, const char *, ...);
133 extern __printf(3, 4)
134 void ufs_error(struct super_block *, const char *, const char *, ...);
135 extern __printf(3, 4)
136 void ufs_panic(struct super_block *, const char *, const char *, ...);
137 void ufs_mark_sb_dirty(struct super_block *sb);
138
UFS_SB(struct super_block * sb)139 static inline struct ufs_sb_info *UFS_SB(struct super_block *sb)
140 {
141 return sb->s_fs_info;
142 }
143
UFS_I(struct inode * inode)144 static inline struct ufs_inode_info *UFS_I(struct inode *inode)
145 {
146 return container_of(inode, struct ufs_inode_info, vfs_inode);
147 }
148
149 /*
150 * Give cylinder group number for a file system block.
151 * Give cylinder group block number for a file system block.
152 */
153 /* #define ufs_dtog(d) ((d) / uspi->s_fpg) */
ufs_dtog(struct ufs_sb_private_info * uspi,u64 b)154 static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b)
155 {
156 do_div(b, uspi->s_fpg);
157 return b;
158 }
159 /* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */
ufs_dtogd(struct ufs_sb_private_info * uspi,u64 b)160 static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b)
161 {
162 return do_div(b, uspi->s_fpg);
163 }
164
165 #endif /* _UFS_UFS_H */
166