1
2#ifndef _UFS_UFS_H
3#define _UFS_UFS_H 1
4
5#ifdef pr_fmt
6#undef pr_fmt
7#endif
8
9#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
10
11#define UFS_MAX_GROUP_LOADED 8
12#define UFS_CGNO_EMPTY ((unsigned)-1)
13
14struct ufs_sb_private_info;
15struct ufs_cg_private_info;
16struct ufs_csum;
17
18struct ufs_sb_info {
19 struct ufs_sb_private_info * s_uspi;
20 struct ufs_csum * s_csp;
21 unsigned s_bytesex;
22 unsigned s_flags;
23 struct buffer_head ** s_ucg;
24 struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED];
25 unsigned s_cgno[UFS_MAX_GROUP_LOADED];
26 unsigned short s_cg_loaded;
27 unsigned s_mount_opt;
28 struct super_block *sb;
29 int work_queued;
30 struct delayed_work sync_work;
31 spinlock_t work_lock;
32 struct mutex s_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 seqlock_t meta_lock;
49 struct mutex truncate_mutex;
50 __u32 i_dir_start_lookup;
51 struct inode vfs_inode;
52};
53
54
55#define UFS_MOUNT_ONERROR 0x0000000F
56#define UFS_MOUNT_ONERROR_PANIC 0x00000001
57#define UFS_MOUNT_ONERROR_LOCK 0x00000002
58#define UFS_MOUNT_ONERROR_UMOUNT 0x00000004
59#define UFS_MOUNT_ONERROR_REPAIR 0x00000008
60
61#define UFS_MOUNT_UFSTYPE 0x0000FFF0
62#define UFS_MOUNT_UFSTYPE_OLD 0x00000010
63#define UFS_MOUNT_UFSTYPE_44BSD 0x00000020
64#define UFS_MOUNT_UFSTYPE_SUN 0x00000040
65#define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080
66#define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100
67#define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200
68#define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400
69#define UFS_MOUNT_UFSTYPE_HP 0x00000800
70#define UFS_MOUNT_UFSTYPE_UFS2 0x00001000
71#define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000
72
73#define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt
74#define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt
75#define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt)
76
77
78
79
80#ifdef CONFIG_UFS_DEBUG
81# define UFSD(f, a...) { \
82 pr_debug("UFSD (%s, %d): %s:", \
83 __FILE__, __LINE__, __func__); \
84 pr_debug(f, ## a); \
85 }
86#else
87# define UFSD(f, a...)
88#endif
89
90
91extern void ufs_free_fragments (struct inode *, u64, unsigned);
92extern void ufs_free_blocks (struct inode *, u64, unsigned);
93extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
94 unsigned, int *, struct page *);
95
96
97extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
98extern void ufs_put_cylinder (struct super_block *, unsigned);
99
100
101extern const struct inode_operations ufs_dir_inode_operations;
102extern int ufs_add_link (struct dentry *, struct inode *);
103extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *);
104extern int ufs_make_empty(struct inode *, struct inode *);
105extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **);
106extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *);
107extern int ufs_empty_dir (struct inode *);
108extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
109extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
110 struct page *page, struct inode *inode, bool update_times);
111
112
113extern const struct inode_operations ufs_file_inode_operations;
114extern const struct file_operations ufs_file_operations;
115extern const struct address_space_operations ufs_aops;
116
117
118extern void ufs_free_inode (struct inode *inode);
119extern struct inode * ufs_new_inode (struct inode *, umode_t);
120
121
122extern struct inode *ufs_iget(struct super_block *, unsigned long);
123extern int ufs_write_inode (struct inode *, struct writeback_control *);
124extern int ufs_sync_inode (struct inode *);
125extern void ufs_evict_inode (struct inode *);
126extern int ufs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
127 struct iattr *attr);
128
129
130extern const struct file_operations ufs_dir_operations;
131
132
133extern __printf(3, 4)
134void ufs_warning(struct super_block *, const char *, const char *, ...);
135extern __printf(3, 4)
136void ufs_error(struct super_block *, const char *, const char *, ...);
137extern __printf(3, 4)
138void ufs_panic(struct super_block *, const char *, const char *, ...);
139void ufs_mark_sb_dirty(struct super_block *sb);
140
141static inline struct ufs_sb_info *UFS_SB(struct super_block *sb)
142{
143 return sb->s_fs_info;
144}
145
146static inline struct ufs_inode_info *UFS_I(struct inode *inode)
147{
148 return container_of(inode, struct ufs_inode_info, vfs_inode);
149}
150
151
152
153
154
155
156static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b)
157{
158 do_div(b, uspi->s_fpg);
159 return b;
160}
161
162static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b)
163{
164 return do_div(b, uspi->s_fpg);
165}
166
167#endif
168
