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
13struct ufs_sb_private_info;
14struct ufs_cg_private_info;
15struct ufs_csum;
16
17struct 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 mutex mutex;
28 struct task_struct *mutex_owner;
29 struct super_block *sb;
30 int work_queued;
31 struct delayed_work sync_work;
32 spinlock_t work_lock;
33};
34
35struct ufs_inode_info {
36 union {
37 __fs32 i_data[15];
38 __u8 i_symlink[2 * 4 * 15];
39 __fs64 u2_i_data[15];
40 } i_u1;
41 __u32 i_flags;
42 __u32 i_shadow;
43 __u32 i_unused1;
44 __u32 i_unused2;
45 __u32 i_oeftflag;
46 __u16 i_osync;
47 __u64 i_lastfrag;
48 __u32 i_dir_start_lookup;
49 struct inode vfs_inode;
50};
51
52
53#define UFS_MOUNT_ONERROR 0x0000000F
54#define UFS_MOUNT_ONERROR_PANIC 0x00000001
55#define UFS_MOUNT_ONERROR_LOCK 0x00000002
56#define UFS_MOUNT_ONERROR_UMOUNT 0x00000004
57#define UFS_MOUNT_ONERROR_REPAIR 0x00000008
58
59#define UFS_MOUNT_UFSTYPE 0x0000FFF0
60#define UFS_MOUNT_UFSTYPE_OLD 0x00000010
61#define UFS_MOUNT_UFSTYPE_44BSD 0x00000020
62#define UFS_MOUNT_UFSTYPE_SUN 0x00000040
63#define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080
64#define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100
65#define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200
66#define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400
67#define UFS_MOUNT_UFSTYPE_HP 0x00000800
68#define UFS_MOUNT_UFSTYPE_UFS2 0x00001000
69#define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000
70
71#define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt
72#define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt
73#define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt)
74
75
76
77
78#ifdef CONFIG_UFS_DEBUG
79# define UFSD(f, a...) { \
80 pr_debug("UFSD (%s, %d): %s:", \
81 __FILE__, __LINE__, __func__); \
82 pr_debug(f, ## a); \
83 }
84#else
85# define UFSD(f, a...)
86#endif
87
88
89extern void ufs_free_fragments (struct inode *, u64, unsigned);
90extern void ufs_free_blocks (struct inode *, u64, unsigned);
91extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
92 unsigned, int *, struct page *);
93
94
95extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
96extern void ufs_put_cylinder (struct super_block *, unsigned);
97
98
99extern const struct inode_operations ufs_dir_inode_operations;
100extern int ufs_add_link (struct dentry *, struct inode *);
101extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *);
102extern int ufs_make_empty(struct inode *, struct inode *);
103extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **);
104extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *);
105extern int ufs_empty_dir (struct inode *);
106extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
107extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
108 struct page *page, struct inode *inode);
109
110
111extern const struct inode_operations ufs_file_inode_operations;
112extern const struct file_operations ufs_file_operations;
113extern const struct address_space_operations ufs_aops;
114
115
116extern void ufs_free_inode (struct inode *inode);
117extern struct inode * ufs_new_inode (struct inode *, umode_t);
118
119
120extern struct inode *ufs_iget(struct super_block *, unsigned long);
121extern int ufs_write_inode (struct inode *, struct writeback_control *);
122extern int ufs_sync_inode (struct inode *);
123extern void ufs_evict_inode (struct inode *);
124extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create);
125
126
127extern const struct file_operations ufs_dir_operations;
128
129
130extern __printf(3, 4)
131void ufs_warning(struct super_block *, const char *, const char *, ...);
132extern __printf(3, 4)
133void ufs_error(struct super_block *, const char *, const char *, ...);
134extern __printf(3, 4)
135void ufs_panic(struct super_block *, const char *, const char *, ...);
136void ufs_mark_sb_dirty(struct super_block *sb);
137
138
139extern const struct inode_operations ufs_fast_symlink_inode_operations;
140extern const struct inode_operations ufs_symlink_inode_operations;
141
142
143extern int ufs_truncate (struct inode *, loff_t);
144extern int ufs_setattr(struct dentry *dentry, struct iattr *attr);
145
146static inline struct ufs_sb_info *UFS_SB(struct super_block *sb)
147{
148 return sb->s_fs_info;
149}
150
151static inline struct ufs_inode_info *UFS_I(struct inode *inode)
152{
153 return container_of(inode, struct ufs_inode_info, vfs_inode);
154}
155
156
157
158
159
160
161static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b)
162{
163 do_div(b, uspi->s_fpg);
164 return b;
165}
166
167static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b)
168{
169 return do_div(b, uspi->s_fpg);
170}
171
172extern void lock_ufs(struct super_block *sb);
173extern void unlock_ufs(struct super_block *sb);
174
175#endif
176
