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 }; 24 25 struct ufs_inode_info { 26 union { 27 __fs32 i_data[15]; 28 __u8 i_symlink[2 * 4 * 15]; 29 __fs64 u2_i_data[15]; 30 } i_u1; 31 __u32 i_flags; 32 __u32 i_shadow; 33 __u32 i_unused1; 34 __u32 i_unused2; 35 __u32 i_oeftflag; 36 __u16 i_osync; 37 __u64 i_lastfrag; 38 __u32 i_dir_start_lookup; 39 struct inode vfs_inode; 40 }; 41 42 /* mount options */ 43 #define UFS_MOUNT_ONERROR 0x0000000F 44 #define UFS_MOUNT_ONERROR_PANIC 0x00000001 45 #define UFS_MOUNT_ONERROR_LOCK 0x00000002 46 #define UFS_MOUNT_ONERROR_UMOUNT 0x00000004 47 #define UFS_MOUNT_ONERROR_REPAIR 0x00000008 48 49 #define UFS_MOUNT_UFSTYPE 0x0000FFF0 50 #define UFS_MOUNT_UFSTYPE_OLD 0x00000010 51 #define UFS_MOUNT_UFSTYPE_44BSD 0x00000020 52 #define UFS_MOUNT_UFSTYPE_SUN 0x00000040 53 #define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080 54 #define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100 55 #define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200 56 #define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400 57 #define UFS_MOUNT_UFSTYPE_HP 0x00000800 58 #define UFS_MOUNT_UFSTYPE_UFS2 0x00001000 59 #define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000 60 61 #define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt 62 #define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt 63 #define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt) 64 65 /* 66 * Debug code 67 */ 68 #ifdef CONFIG_UFS_DEBUG 69 # define UFSD(f, a...) { \ 70 printk ("UFSD (%s, %d): %s:", \ 71 __FILE__, __LINE__, __func__); \ 72 printk (f, ## a); \ 73 } 74 #else 75 # define UFSD(f, a...) /**/ 76 #endif 77 78 /* balloc.c */ 79 extern void ufs_free_fragments (struct inode *, u64, unsigned); 80 extern void ufs_free_blocks (struct inode *, u64, unsigned); 81 extern u64 ufs_new_fragments(struct inode *, void *, u64, u64, 82 unsigned, int *, struct page *); 83 84 /* cylinder.c */ 85 extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned); 86 extern void ufs_put_cylinder (struct super_block *, unsigned); 87 88 /* dir.c */ 89 extern const struct inode_operations ufs_dir_inode_operations; 90 extern int ufs_add_link (struct dentry *, struct inode *); 91 extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *); 92 extern int ufs_make_empty(struct inode *, struct inode *); 93 extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **); 94 extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *); 95 extern int ufs_empty_dir (struct inode *); 96 extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **); 97 extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, 98 struct page *page, struct inode *inode); 99 100 /* file.c */ 101 extern const struct inode_operations ufs_file_inode_operations; 102 extern const struct file_operations ufs_file_operations; 103 extern const struct address_space_operations ufs_aops; 104 105 /* ialloc.c */ 106 extern void ufs_free_inode (struct inode *inode); 107 extern struct inode * ufs_new_inode (struct inode *, umode_t); 108 109 /* inode.c */ 110 extern struct inode *ufs_iget(struct super_block *, unsigned long); 111 extern int ufs_write_inode (struct inode *, struct writeback_control *); 112 extern int ufs_sync_inode (struct inode *); 113 extern void ufs_evict_inode (struct inode *); 114 extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create); 115 116 /* namei.c */ 117 extern const struct file_operations ufs_dir_operations; 118 119 /* super.c */ 120 extern __printf(3, 4) 121 void ufs_warning(struct super_block *, const char *, const char *, ...); 122 extern __printf(3, 4) 123 void ufs_error(struct super_block *, const char *, const char *, ...); 124 extern __printf(3, 4) 125 void ufs_panic(struct super_block *, const char *, const char *, ...); 126 127 /* symlink.c */ 128 extern const struct inode_operations ufs_fast_symlink_inode_operations; 129 extern const struct inode_operations ufs_symlink_inode_operations; 130 131 /* truncate.c */ 132 extern int ufs_truncate (struct inode *, loff_t); 133 extern int ufs_setattr(struct dentry *dentry, struct iattr *attr); 134 135 static inline struct ufs_sb_info *UFS_SB(struct super_block *sb) 136 { 137 return sb->s_fs_info; 138 } 139 140 static inline struct ufs_inode_info *UFS_I(struct inode *inode) 141 { 142 return container_of(inode, struct ufs_inode_info, vfs_inode); 143 } 144 145 /* 146 * Give cylinder group number for a file system block. 147 * Give cylinder group block number for a file system block. 148 */ 149 /* #define ufs_dtog(d) ((d) / uspi->s_fpg) */ 150 static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b) 151 { 152 do_div(b, uspi->s_fpg); 153 return b; 154 } 155 /* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */ 156 static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b) 157 { 158 return do_div(b, uspi->s_fpg); 159 } 160 161 extern void lock_ufs(struct super_block *sb); 162 extern void unlock_ufs(struct super_block *sb); 163 164 #endif /* _UFS_UFS_H */ 165