1 #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 7 struct ufs_sb_private_info; 8 struct ufs_cg_private_info; 9 struct ufs_csum; 10 11 struct 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; 21 struct mutex mutex; 22 struct task_struct *mutex_owner; 23 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 */ 27 }; 28 29 struct ufs_inode_info { 30 union { 31 __fs32 i_data[15]; 32 __u8 i_symlink[2 * 4 * 15]; 33 __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:", \ 75 __FILE__, __LINE__, __func__); \ 76 printk (f, ## a); \ 77 } 78 #else 79 # define UFSD(f, a...) /**/ 80 #endif 81 82 /* balloc.c */ 83 extern void ufs_free_fragments (struct inode *, u64, unsigned); 84 extern void ufs_free_blocks (struct inode *, u64, unsigned); 85 extern u64 ufs_new_fragments(struct inode *, void *, u64, u64, 86 unsigned, int *, struct page *); 87 88 /* cylinder.c */ 89 extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned); 90 extern void ufs_put_cylinder (struct super_block *, unsigned); 91 92 /* dir.c */ 93 extern const struct inode_operations ufs_dir_inode_operations; 94 extern int ufs_add_link (struct dentry *, struct inode *); 95 extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *); 96 extern int ufs_make_empty(struct inode *, struct inode *); 97 extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **); 98 extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *); 99 extern int ufs_empty_dir (struct inode *); 100 extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **); 101 extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, 102 struct page *page, struct inode *inode); 103 104 /* file.c */ 105 extern const struct inode_operations ufs_file_inode_operations; 106 extern const struct file_operations ufs_file_operations; 107 extern const struct address_space_operations ufs_aops; 108 109 /* ialloc.c */ 110 extern void ufs_free_inode (struct inode *inode); 111 extern struct inode * ufs_new_inode (struct inode *, umode_t); 112 113 /* inode.c */ 114 extern struct inode *ufs_iget(struct super_block *, unsigned long); 115 extern int ufs_write_inode (struct inode *, struct writeback_control *); 116 extern int ufs_sync_inode (struct inode *); 117 extern void ufs_evict_inode (struct inode *); 118 extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create); 119 120 /* namei.c */ 121 extern const struct file_operations ufs_dir_operations; 122 123 /* super.c */ 124 extern __printf(3, 4) 125 void ufs_warning(struct super_block *, const char *, const char *, ...); 126 extern __printf(3, 4) 127 void ufs_error(struct super_block *, const char *, const char *, ...); 128 extern __printf(3, 4) 129 void ufs_panic(struct super_block *, const char *, const char *, ...); 130 void ufs_mark_sb_dirty(struct super_block *sb); 131 132 /* symlink.c */ 133 extern const struct inode_operations ufs_fast_symlink_inode_operations; 134 extern const struct inode_operations ufs_symlink_inode_operations; 135 136 /* truncate.c */ 137 extern int ufs_truncate (struct inode *, loff_t); 138 extern int ufs_setattr(struct dentry *dentry, struct iattr *attr); 139 140 static inline struct ufs_sb_info *UFS_SB(struct super_block *sb) 141 { 142 return sb->s_fs_info; 143 } 144 145 static 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) */ 155 static 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) */ 161 static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b) 162 { 163 return do_div(b, uspi->s_fpg); 164 } 165 166 extern void lock_ufs(struct super_block *sb); 167 extern void unlock_ufs(struct super_block *sb); 168 169 #endif /* _UFS_UFS_H */ 170