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 struct mutex s_lock; 34 }; 35 36 struct ufs_inode_info { 37 union { 38 __fs32 i_data[15]; 39 __u8 i_symlink[2 * 4 * 15]; 40 __fs64 u2_i_data[15]; 41 } i_u1; 42 __u32 i_flags; 43 __u32 i_shadow; 44 __u32 i_unused1; 45 __u32 i_unused2; 46 __u32 i_oeftflag; 47 __u16 i_osync; 48 __u64 i_lastfrag; 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...) { \ 81 pr_debug("UFSD (%s, %d): %s:", \ 82 __FILE__, __LINE__, __func__); \ 83 pr_debug(f, ## a); \ 84 } 85 #else 86 # define UFSD(f, a...) /**/ 87 #endif 88 89 /* balloc.c */ 90 extern void ufs_free_fragments (struct inode *, u64, unsigned); 91 extern void ufs_free_blocks (struct inode *, u64, unsigned); 92 extern u64 ufs_new_fragments(struct inode *, void *, u64, u64, 93 unsigned, int *, struct page *); 94 95 /* cylinder.c */ 96 extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned); 97 extern void ufs_put_cylinder (struct super_block *, unsigned); 98 99 /* dir.c */ 100 extern const struct inode_operations ufs_dir_inode_operations; 101 extern int ufs_add_link (struct dentry *, struct inode *); 102 extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *); 103 extern int ufs_make_empty(struct inode *, struct inode *); 104 extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **); 105 extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *); 106 extern int ufs_empty_dir (struct inode *); 107 extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **); 108 extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, 109 struct page *page, struct inode *inode, bool update_times); 110 111 /* file.c */ 112 extern const struct inode_operations ufs_file_inode_operations; 113 extern const struct file_operations ufs_file_operations; 114 extern const struct address_space_operations ufs_aops; 115 116 /* ialloc.c */ 117 extern void ufs_free_inode (struct inode *inode); 118 extern struct inode * ufs_new_inode (struct inode *, umode_t); 119 120 /* inode.c */ 121 extern struct inode *ufs_iget(struct super_block *, unsigned long); 122 extern int ufs_write_inode (struct inode *, struct writeback_control *); 123 extern int ufs_sync_inode (struct inode *); 124 extern void ufs_evict_inode (struct inode *); 125 extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create); 126 127 /* namei.c */ 128 extern const struct file_operations ufs_dir_operations; 129 130 /* super.c */ 131 extern __printf(3, 4) 132 void ufs_warning(struct super_block *, const char *, const char *, ...); 133 extern __printf(3, 4) 134 void ufs_error(struct super_block *, const char *, const char *, ...); 135 extern __printf(3, 4) 136 void ufs_panic(struct super_block *, const char *, const char *, ...); 137 void ufs_mark_sb_dirty(struct super_block *sb); 138 139 /* symlink.c */ 140 extern const struct inode_operations ufs_fast_symlink_inode_operations; 141 extern const struct inode_operations ufs_symlink_inode_operations; 142 143 /* truncate.c */ 144 extern int ufs_truncate (struct inode *, loff_t); 145 extern int ufs_setattr(struct dentry *dentry, struct iattr *attr); 146 147 static inline struct ufs_sb_info *UFS_SB(struct super_block *sb) 148 { 149 return sb->s_fs_info; 150 } 151 152 static inline struct ufs_inode_info *UFS_I(struct inode *inode) 153 { 154 return container_of(inode, struct ufs_inode_info, vfs_inode); 155 } 156 157 /* 158 * Give cylinder group number for a file system block. 159 * Give cylinder group block number for a file system block. 160 */ 161 /* #define ufs_dtog(d) ((d) / uspi->s_fpg) */ 162 static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b) 163 { 164 do_div(b, uspi->s_fpg); 165 return b; 166 } 167 /* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */ 168 static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b) 169 { 170 return do_div(b, uspi->s_fpg); 171 } 172 173 extern void lock_ufs(struct super_block *sb); 174 extern void unlock_ufs(struct super_block *sb); 175 176 #endif /* _UFS_UFS_H */ 177