1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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 | |
14 | struct ufs_sb_private_info; |
15 | struct ufs_cg_private_info; |
16 | struct ufs_csum; |
17 | |
18 | struct 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; /* non-zero if the delayed work is queued */ |
30 | struct delayed_work sync_work; /* FS sync delayed work */ |
31 | spinlock_t work_lock; /* protects sync_work and work_queued */ |
32 | struct mutex s_lock; |
33 | }; |
34 | |
35 | struct 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 | /* mount options */ |
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 | * Debug code |
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 | /* balloc.c */ |
91 | extern void ufs_free_fragments (struct inode *, u64, unsigned); |
92 | extern void ufs_free_blocks (struct inode *, u64, unsigned); |
93 | extern u64 ufs_new_fragments(struct inode *, void *, u64, u64, |
94 | unsigned, int *, struct page *); |
95 | |
96 | /* cylinder.c */ |
97 | extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned); |
98 | extern void ufs_put_cylinder (struct super_block *, unsigned); |
99 | |
100 | /* dir.c */ |
101 | extern const struct inode_operations ufs_dir_inode_operations; |
102 | extern int ufs_add_link (struct dentry *, struct inode *); |
103 | extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *); |
104 | extern int ufs_make_empty(struct inode *, struct inode *); |
105 | extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **); |
106 | extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *); |
107 | extern int ufs_empty_dir (struct inode *); |
108 | extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **); |
109 | extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, |
110 | struct page *page, struct inode *inode, bool update_times); |
111 | |
112 | /* file.c */ |
113 | extern const struct inode_operations ufs_file_inode_operations; |
114 | extern const struct file_operations ufs_file_operations; |
115 | extern const struct address_space_operations ufs_aops; |
116 | |
117 | /* ialloc.c */ |
118 | extern void ufs_free_inode (struct inode *inode); |
119 | extern struct inode * ufs_new_inode (struct inode *, umode_t); |
120 | |
121 | /* inode.c */ |
122 | extern struct inode *ufs_iget(struct super_block *, unsigned long); |
123 | extern int ufs_write_inode (struct inode *, struct writeback_control *); |
124 | extern int ufs_sync_inode (struct inode *); |
125 | extern void ufs_evict_inode (struct inode *); |
126 | extern int ufs_setattr(struct mnt_idmap *idmap, struct dentry *dentry, |
127 | struct iattr *attr); |
128 | |
129 | /* namei.c */ |
130 | extern const struct file_operations ufs_dir_operations; |
131 | |
132 | /* super.c */ |
133 | extern __printf(3, 4) |
134 | void ufs_warning(struct super_block *, const char *, const char *, ...); |
135 | extern __printf(3, 4) |
136 | void ufs_error(struct super_block *, const char *, const char *, ...); |
137 | extern __printf(3, 4) |
138 | void ufs_panic(struct super_block *, const char *, const char *, ...); |
139 | void ufs_mark_sb_dirty(struct super_block *sb); |
140 | |
141 | static inline struct ufs_sb_info *UFS_SB(struct super_block *sb) |
142 | { |
143 | return sb->s_fs_info; |
144 | } |
145 | |
146 | static 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 | * Give cylinder group number for a file system block. |
153 | * Give cylinder group block number for a file system block. |
154 | */ |
155 | /* #define ufs_dtog(d) ((d) / uspi->s_fpg) */ |
156 | static 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 | /* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */ |
162 | static 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 /* _UFS_UFS_H */ |
168 | |