1 #ifndef _UFS_UFS_H 2 #define _UFS_UFS_H 1 3 4 #ifdef pr_fmt 5 #undef pr_fmt 6 #endif 7 8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 9 10 #define UFS_MAX_GROUP_LOADED 8 11 #define UFS_CGNO_EMPTY ((unsigned)-1) 12 13 struct ufs_sb_private_info; 14 struct ufs_cg_private_info; 15 struct ufs_csum; 16 17 struct 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; 27 struct mutex mutex; 28 struct task_struct *mutex_owner; 29 struct super_block *sb; 30 int work_queued; /* non-zero if the delayed work is queued */ 31 struct delayed_work sync_work; /* FS sync delayed work */ 32 spinlock_t work_lock; /* protects sync_work and work_queued */ 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 __u32 i_dir_start_lookup; 49 struct inode vfs_inode; 50 }; 51 52 /* mount options */ 53 #define UFS_MOUNT_ONERROR 0x0000000F 54 #define UFS_MOUNT_ONERROR_PANIC 0x00000001 55 #define UFS_MOUNT_ONERROR_LOCK 0x00000002 56 #define UFS_MOUNT_ONERROR_UMOUNT 0x00000004 57 #define UFS_MOUNT_ONERROR_REPAIR 0x00000008 58 59 #define UFS_MOUNT_UFSTYPE 0x0000FFF0 60 #define UFS_MOUNT_UFSTYPE_OLD 0x00000010 61 #define UFS_MOUNT_UFSTYPE_44BSD 0x00000020 62 #define UFS_MOUNT_UFSTYPE_SUN 0x00000040 63 #define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080 64 #define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100 65 #define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200 66 #define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400 67 #define UFS_MOUNT_UFSTYPE_HP 0x00000800 68 #define UFS_MOUNT_UFSTYPE_UFS2 0x00001000 69 #define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000 70 71 #define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt 72 #define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt 73 #define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt) 74 75 /* 76 * Debug code 77 */ 78 #ifdef CONFIG_UFS_DEBUG 79 # define UFSD(f, a...) { \ 80 pr_debug("UFSD (%s, %d): %s:", \ 81 __FILE__, __LINE__, __func__); \ 82 pr_debug(f, ## a); \ 83 } 84 #else 85 # define UFSD(f, a...) /**/ 86 #endif 87 88 /* balloc.c */ 89 extern void ufs_free_fragments (struct inode *, u64, unsigned); 90 extern void ufs_free_blocks (struct inode *, u64, unsigned); 91 extern u64 ufs_new_fragments(struct inode *, void *, u64, u64, 92 unsigned, int *, struct page *); 93 94 /* cylinder.c */ 95 extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned); 96 extern void ufs_put_cylinder (struct super_block *, unsigned); 97 98 /* dir.c */ 99 extern const struct inode_operations ufs_dir_inode_operations; 100 extern int ufs_add_link (struct dentry *, struct inode *); 101 extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *); 102 extern int ufs_make_empty(struct inode *, struct inode *); 103 extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **); 104 extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *); 105 extern int ufs_empty_dir (struct inode *); 106 extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **); 107 extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, 108 struct page *page, struct inode *inode); 109 110 /* file.c */ 111 extern const struct inode_operations ufs_file_inode_operations; 112 extern const struct file_operations ufs_file_operations; 113 extern const struct address_space_operations ufs_aops; 114 115 /* ialloc.c */ 116 extern void ufs_free_inode (struct inode *inode); 117 extern struct inode * ufs_new_inode (struct inode *, umode_t); 118 119 /* inode.c */ 120 extern struct inode *ufs_iget(struct super_block *, unsigned long); 121 extern int ufs_write_inode (struct inode *, struct writeback_control *); 122 extern int ufs_sync_inode (struct inode *); 123 extern void ufs_evict_inode (struct inode *); 124 extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create); 125 126 /* namei.c */ 127 extern const struct file_operations ufs_dir_operations; 128 129 /* super.c */ 130 extern __printf(3, 4) 131 void ufs_warning(struct super_block *, const char *, const char *, ...); 132 extern __printf(3, 4) 133 void ufs_error(struct super_block *, const char *, const char *, ...); 134 extern __printf(3, 4) 135 void ufs_panic(struct super_block *, const char *, const char *, ...); 136 void ufs_mark_sb_dirty(struct super_block *sb); 137 138 /* symlink.c */ 139 extern const struct inode_operations ufs_fast_symlink_inode_operations; 140 extern const struct inode_operations ufs_symlink_inode_operations; 141 142 /* truncate.c */ 143 extern int ufs_truncate (struct inode *, loff_t); 144 extern int ufs_setattr(struct dentry *dentry, struct iattr *attr); 145 146 static inline struct ufs_sb_info *UFS_SB(struct super_block *sb) 147 { 148 return sb->s_fs_info; 149 } 150 151 static inline struct ufs_inode_info *UFS_I(struct inode *inode) 152 { 153 return container_of(inode, struct ufs_inode_info, vfs_inode); 154 } 155 156 /* 157 * Give cylinder group number for a file system block. 158 * Give cylinder group block number for a file system block. 159 */ 160 /* #define ufs_dtog(d) ((d) / uspi->s_fpg) */ 161 static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b) 162 { 163 do_div(b, uspi->s_fpg); 164 return b; 165 } 166 /* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */ 167 static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b) 168 { 169 return do_div(b, uspi->s_fpg); 170 } 171 172 extern void lock_ufs(struct super_block *sb); 173 extern void unlock_ufs(struct super_block *sb); 174 175 #endif /* _UFS_UFS_H */ 176