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Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -07001#ifndef _UFS_UFS_H
2#define _UFS_UFS_H 1
3
4#define UFS_MAX_GROUP_LOADED 8
5#define UFS_CGNO_EMPTY ((unsigned)-1)
6
7struct ufs_sb_private_info;
8struct ufs_cg_private_info;
9struct ufs_csum;
10
11struct ufs_sb_info {
12 struct ufs_sb_private_info * s_uspi;
13 struct ufs_csum * s_csp;
14 unsigned s_bytesex;
15 unsigned s_flags;
16 struct buffer_head ** s_ucg;
17 struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED];
18 unsigned s_cgno[UFS_MAX_GROUP_LOADED];
19 unsigned short s_cg_loaded;
20 unsigned s_mount_opt;
Arnd Bergmann788257d2011-01-24 10:14:12 +010021 struct mutex mutex;
22 struct task_struct *mutex_owner;
Artem Bityutskiy9e9ad5f2012-07-12 16:28:08 +030023 struct super_block *sb;
24 int work_queued; /* non-zero if the delayed work is queued */
25 struct delayed_work sync_work; /* FS sync delayed work */
26 spinlock_t work_lock; /* protects sync_work and work_queued */
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070027};
28
29struct ufs_inode_info {
30 union {
31 __fs32 i_data[15];
Duane Griffinf33219b2009-01-08 22:43:49 +000032 __u8 i_symlink[2 * 4 * 15];
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070033 __fs64 u2_i_data[15];
34 } i_u1;
35 __u32 i_flags;
36 __u32 i_shadow;
37 __u32 i_unused1;
38 __u32 i_unused2;
39 __u32 i_oeftflag;
40 __u16 i_osync;
41 __u64 i_lastfrag;
42 __u32 i_dir_start_lookup;
43 struct inode vfs_inode;
44};
45
46/* mount options */
47#define UFS_MOUNT_ONERROR 0x0000000F
48#define UFS_MOUNT_ONERROR_PANIC 0x00000001
49#define UFS_MOUNT_ONERROR_LOCK 0x00000002
50#define UFS_MOUNT_ONERROR_UMOUNT 0x00000004
51#define UFS_MOUNT_ONERROR_REPAIR 0x00000008
52
53#define UFS_MOUNT_UFSTYPE 0x0000FFF0
54#define UFS_MOUNT_UFSTYPE_OLD 0x00000010
55#define UFS_MOUNT_UFSTYPE_44BSD 0x00000020
56#define UFS_MOUNT_UFSTYPE_SUN 0x00000040
57#define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080
58#define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100
59#define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200
60#define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400
61#define UFS_MOUNT_UFSTYPE_HP 0x00000800
62#define UFS_MOUNT_UFSTYPE_UFS2 0x00001000
63#define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000
64
65#define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt
66#define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt
67#define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt)
68
69/*
70 * Debug code
71 */
72#ifdef CONFIG_UFS_DEBUG
73# define UFSD(f, a...) { \
74 printk ("UFSD (%s, %d): %s:", \
Harvey Harrison9746077a72008-04-28 02:16:17 -070075 __FILE__, __LINE__, __func__); \
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070076 printk (f, ## a); \
77 }
78#else
79# define UFSD(f, a...) /**/
80#endif
81
82/* balloc.c */
83extern void ufs_free_fragments (struct inode *, u64, unsigned);
84extern void ufs_free_blocks (struct inode *, u64, unsigned);
85extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
86 unsigned, int *, struct page *);
87
88/* cylinder.c */
89extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
90extern void ufs_put_cylinder (struct super_block *, unsigned);
91
92/* dir.c */
93extern const struct inode_operations ufs_dir_inode_operations;
94extern int ufs_add_link (struct dentry *, struct inode *);
Al Viro89031bc2010-01-31 20:49:54 -050095extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070096extern int ufs_make_empty(struct inode *, struct inode *);
Al Viro89031bc2010-01-31 20:49:54 -050097extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070098extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *);
99extern int ufs_empty_dir (struct inode *);
100extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
101extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
102 struct page *page, struct inode *inode);
103
104/* file.c */
105extern const struct inode_operations ufs_file_inode_operations;
106extern const struct file_operations ufs_file_operations;
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700107extern const struct address_space_operations ufs_aops;
108
109/* ialloc.c */
110extern void ufs_free_inode (struct inode *inode);
Al Viro6a9a06d2011-07-26 02:49:13 -0400111extern struct inode * ufs_new_inode (struct inode *, umode_t);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700112
113/* inode.c */
David Howellsb55c4602008-02-07 00:15:48 -0800114extern struct inode *ufs_iget(struct super_block *, unsigned long);
Christoph Hellwiga9185b42010-03-05 09:21:37 +0100115extern int ufs_write_inode (struct inode *, struct writeback_control *);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700116extern int ufs_sync_inode (struct inode *);
Al Viro58e82682010-06-05 19:40:56 -0400117extern void ufs_evict_inode (struct inode *);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700118extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create);
119
120/* namei.c */
121extern const struct file_operations ufs_dir_operations;
122
123/* super.c */
Joe Perchesb9075fa2011-10-31 17:11:33 -0700124extern __printf(3, 4)
125void ufs_warning(struct super_block *, const char *, const char *, ...);
126extern __printf(3, 4)
127void ufs_error(struct super_block *, const char *, const char *, ...);
128extern __printf(3, 4)
129void ufs_panic(struct super_block *, const char *, const char *, ...);
Artem Bityutskiy9e9ad5f2012-07-12 16:28:08 +0300130void ufs_mark_sb_dirty(struct super_block *sb);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700131
132/* symlink.c */
133extern const struct inode_operations ufs_fast_symlink_inode_operations;
Dmitry Monakhov311b95492010-04-15 00:56:58 +0200134extern const struct inode_operations ufs_symlink_inode_operations;
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700135
136/* truncate.c */
137extern int ufs_truncate (struct inode *, loff_t);
Dmitry Monakhov311b95492010-04-15 00:56:58 +0200138extern int ufs_setattr(struct dentry *dentry, struct iattr *attr);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700139
140static inline struct ufs_sb_info *UFS_SB(struct super_block *sb)
141{
142 return sb->s_fs_info;
143}
144
145static inline struct ufs_inode_info *UFS_I(struct inode *inode)
146{
147 return container_of(inode, struct ufs_inode_info, vfs_inode);
148}
149
150/*
151 * Give cylinder group number for a file system block.
152 * Give cylinder group block number for a file system block.
153 */
154/* #define ufs_dtog(d) ((d) / uspi->s_fpg) */
155static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b)
156{
157 do_div(b, uspi->s_fpg);
158 return b;
159}
160/* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */
161static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b)
162{
163 return do_div(b, uspi->s_fpg);
164}
165
Arnd Bergmann788257d2011-01-24 10:14:12 +0100166extern void lock_ufs(struct super_block *sb);
167extern void unlock_ufs(struct super_block *sb);
168
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700169#endif /* _UFS_UFS_H */