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UBUNTU: Ubuntu-4.13.0-45.50
[mirror_ubuntu-artful-kernel.git] / fs / ufs / ufs.h
CommitLineData
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CH		 1#ifndef _UFS_UFS_H
2#define _UFS_UFS_H 1
3
de771bda
FF		 4#ifdef pr_fmt
5#undef pr_fmt
6#endif
7
8#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9
bcd6d4ec
CH		 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;
9e9ad5f4
AB		 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 */
cdd9eefd 31 struct mutex s_lock;
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CH		 32};
33
34struct ufs_inode_info {
35 union {
36 __fs32 i_data[15];
f33219b7 37 __u8 i_symlink[2 * 4 * 15];
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CH		 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;
724bb09f
AV		 47 seqlock_t meta_lock;
48 struct mutex truncate_mutex;
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CH		 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...) { \
d4beaabd 81 pr_debug("UFSD (%s, %d): %s:", \
9746077a 82 __FILE__, __LINE__, __func__); \
d4beaabd 83 pr_debug(f, ## a); \
bcd6d4ec
CH		 84 }
85#else
86# define UFSD(f, a...) /**/
87#endif
88
89/* balloc.c */
90extern void ufs_free_fragments (struct inode *, u64, unsigned);
91extern void ufs_free_blocks (struct inode *, u64, unsigned);
92extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
93 unsigned, int *, struct page *);
94
95/* cylinder.c */
96extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
97extern void ufs_put_cylinder (struct super_block *, unsigned);
98
99/* dir.c */
100extern const struct inode_operations ufs_dir_inode_operations;
101extern int ufs_add_link (struct dentry *, struct inode *);
89031bc7 102extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *);
bcd6d4ec 103extern int ufs_make_empty(struct inode *, struct inode *);
89031bc7 104extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **);
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CH		 105extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *);
106extern int ufs_empty_dir (struct inode *);
107extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
108extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
70d45cdb 109 struct page *page, struct inode *inode, bool update_times);
bcd6d4ec
CH		 110
111/* file.c */
112extern const struct inode_operations ufs_file_inode_operations;
113extern const struct file_operations ufs_file_operations;
bcd6d4ec
CH		 114extern const struct address_space_operations ufs_aops;
115
116/* ialloc.c */
117extern void ufs_free_inode (struct inode *inode);
6a9a06d9 118extern struct inode * ufs_new_inode (struct inode *, umode_t);
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CH		 119
120/* inode.c */
b55c460d 121extern struct inode *ufs_iget(struct super_block *, unsigned long);
a9185b41 122extern int ufs_write_inode (struct inode *, struct writeback_control *);
bcd6d4ec 123extern int ufs_sync_inode (struct inode *);
58e8268c 124extern void ufs_evict_inode (struct inode *);
010d331f 125extern int ufs_setattr(struct dentry *dentry, struct iattr *attr);
bcd6d4ec
CH		 126
127/* namei.c */
128extern const struct file_operations ufs_dir_operations;
129
130/* super.c */
b9075fa9
JP		 131extern __printf(3, 4)
132void ufs_warning(struct super_block *, const char *, const char *, ...);
133extern __printf(3, 4)
134void ufs_error(struct super_block *, const char *, const char *, ...);
135extern __printf(3, 4)
136void ufs_panic(struct super_block *, const char *, const char *, ...);
9e9ad5f4 137void ufs_mark_sb_dirty(struct super_block *sb);
bcd6d4ec 138
bcd6d4ec
CH		 139static inline struct ufs_sb_info *UFS_SB(struct super_block *sb)
140{
141 return sb->s_fs_info;
142}
143
144static 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) */
154static 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) */
160static 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 */
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