Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 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 | }; |
| 22 | |
| 23 | struct ufs_inode_info { |
| 24 | union { |
| 25 | __fs32 i_data[15]; |
| 26 | __u8 i_symlink[4*15]; |
| 27 | __fs64 u2_i_data[15]; |
| 28 | } i_u1; |
| 29 | __u32 i_flags; |
| 30 | __u32 i_shadow; |
| 31 | __u32 i_unused1; |
| 32 | __u32 i_unused2; |
| 33 | __u32 i_oeftflag; |
| 34 | __u16 i_osync; |
| 35 | __u64 i_lastfrag; |
| 36 | __u32 i_dir_start_lookup; |
| 37 | struct inode vfs_inode; |
| 38 | }; |
| 39 | |
| 40 | /* mount options */ |
| 41 | #define UFS_MOUNT_ONERROR 0x0000000F |
| 42 | #define UFS_MOUNT_ONERROR_PANIC 0x00000001 |
| 43 | #define UFS_MOUNT_ONERROR_LOCK 0x00000002 |
| 44 | #define UFS_MOUNT_ONERROR_UMOUNT 0x00000004 |
| 45 | #define UFS_MOUNT_ONERROR_REPAIR 0x00000008 |
| 46 | |
| 47 | #define UFS_MOUNT_UFSTYPE 0x0000FFF0 |
| 48 | #define UFS_MOUNT_UFSTYPE_OLD 0x00000010 |
| 49 | #define UFS_MOUNT_UFSTYPE_44BSD 0x00000020 |
| 50 | #define UFS_MOUNT_UFSTYPE_SUN 0x00000040 |
| 51 | #define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080 |
| 52 | #define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100 |
| 53 | #define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200 |
| 54 | #define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400 |
| 55 | #define UFS_MOUNT_UFSTYPE_HP 0x00000800 |
| 56 | #define UFS_MOUNT_UFSTYPE_UFS2 0x00001000 |
| 57 | #define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000 |
| 58 | |
| 59 | #define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt |
| 60 | #define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt |
| 61 | #define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt) |
| 62 | |
| 63 | /* |
| 64 | * Debug code |
| 65 | */ |
| 66 | #ifdef CONFIG_UFS_DEBUG |
| 67 | # define UFSD(f, a...) { \ |
| 68 | printk ("UFSD (%s, %d): %s:", \ |
| 69 | __FILE__, __LINE__, __FUNCTION__); \ |
| 70 | printk (f, ## a); \ |
| 71 | } |
| 72 | #else |
| 73 | # define UFSD(f, a...) /**/ |
| 74 | #endif |
| 75 | |
| 76 | /* balloc.c */ |
| 77 | extern void ufs_free_fragments (struct inode *, u64, unsigned); |
| 78 | extern void ufs_free_blocks (struct inode *, u64, unsigned); |
| 79 | extern u64 ufs_new_fragments(struct inode *, void *, u64, u64, |
| 80 | unsigned, int *, struct page *); |
| 81 | |
| 82 | /* cylinder.c */ |
| 83 | extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned); |
| 84 | extern void ufs_put_cylinder (struct super_block *, unsigned); |
| 85 | |
| 86 | /* dir.c */ |
| 87 | extern const struct inode_operations ufs_dir_inode_operations; |
| 88 | extern int ufs_add_link (struct dentry *, struct inode *); |
| 89 | extern ino_t ufs_inode_by_name(struct inode *, struct dentry *); |
| 90 | extern int ufs_make_empty(struct inode *, struct inode *); |
| 91 | extern struct ufs_dir_entry *ufs_find_entry(struct inode *, struct dentry *, struct page **); |
| 92 | extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *); |
| 93 | extern int ufs_empty_dir (struct inode *); |
| 94 | extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **); |
| 95 | extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, |
| 96 | struct page *page, struct inode *inode); |
| 97 | |
| 98 | /* file.c */ |
| 99 | extern const struct inode_operations ufs_file_inode_operations; |
| 100 | extern const struct file_operations ufs_file_operations; |
| 101 | |
| 102 | extern const struct address_space_operations ufs_aops; |
| 103 | |
| 104 | /* ialloc.c */ |
| 105 | extern void ufs_free_inode (struct inode *inode); |
| 106 | extern struct inode * ufs_new_inode (struct inode *, int); |
| 107 | |
| 108 | /* inode.c */ |
| 109 | extern void ufs_read_inode (struct inode *); |
| 110 | extern void ufs_put_inode (struct inode *); |
| 111 | extern int ufs_write_inode (struct inode *, int); |
| 112 | extern int ufs_sync_inode (struct inode *); |
| 113 | extern void ufs_delete_inode (struct inode *); |
| 114 | extern struct buffer_head * ufs_bread (struct inode *, unsigned, int, int *); |
| 115 | extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create); |
| 116 | |
| 117 | /* namei.c */ |
| 118 | extern const struct file_operations ufs_dir_operations; |
| 119 | |
| 120 | /* super.c */ |
| 121 | extern void ufs_warning (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); |
| 122 | extern void ufs_error (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); |
| 123 | extern void ufs_panic (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); |
| 124 | |
| 125 | /* symlink.c */ |
| 126 | extern const struct inode_operations ufs_fast_symlink_inode_operations; |
| 127 | |
| 128 | /* truncate.c */ |
| 129 | extern int ufs_truncate (struct inode *, loff_t); |
| 130 | |
| 131 | static inline struct ufs_sb_info *UFS_SB(struct super_block *sb) |
| 132 | { |
| 133 | return sb->s_fs_info; |
| 134 | } |
| 135 | |
| 136 | static inline struct ufs_inode_info *UFS_I(struct inode *inode) |
| 137 | { |
| 138 | return container_of(inode, struct ufs_inode_info, vfs_inode); |
| 139 | } |
| 140 | |
| 141 | /* |
| 142 | * Give cylinder group number for a file system block. |
| 143 | * Give cylinder group block number for a file system block. |
| 144 | */ |
| 145 | /* #define ufs_dtog(d) ((d) / uspi->s_fpg) */ |
| 146 | static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b) |
| 147 | { |
| 148 | do_div(b, uspi->s_fpg); |
| 149 | return b; |
| 150 | } |
| 151 | /* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */ |
| 152 | static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b) |
| 153 | { |
| 154 | return do_div(b, uspi->s_fpg); |
| 155 | } |
| 156 | |
| 157 | #endif /* _UFS_UFS_H */ |