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 7struct ufs_sb_private_info; 8struct ufs_cg_private_info; 9struct ufs_csum; 10 11struct 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 23struct ufs_inode_info { 24 union { 25 __fs32 i_data[15]; 26 __u8 i_symlink[2 * 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__, __func__); \ 70 printk (f, ## a); \ 71 } 72#else 73# define UFSD(f, a...) /**/ 74#endif 75 76/* balloc.c */ 77extern void ufs_free_fragments (struct inode *, u64, unsigned); 78extern void ufs_free_blocks (struct inode *, u64, unsigned); 79extern u64 ufs_new_fragments(struct inode *, void *, u64, u64, 80 unsigned, int *, struct page *); 81 82/* cylinder.c */ 83extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned); 84extern void ufs_put_cylinder (struct super_block *, unsigned); 85 86/* dir.c */ 87extern const struct inode_operations ufs_dir_inode_operations; 88extern int ufs_add_link (struct dentry *, struct inode *); 89extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *); 90extern int ufs_make_empty(struct inode *, struct inode *); 91extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **); 92extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *); 93extern int ufs_empty_dir (struct inode *); 94extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **); 95extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, 96 struct page *page, struct inode *inode); 97 98/* file.c */ 99extern const struct inode_operations ufs_file_inode_operations; 100extern const struct file_operations ufs_file_operations; 101extern const struct address_space_operations ufs_aops; 102 103/* ialloc.c */ 104extern void ufs_free_inode (struct inode *inode); 105extern struct inode * ufs_new_inode (struct inode *, int); 106 107/* inode.c */ 108extern struct inode *ufs_iget(struct super_block *, unsigned long); 109extern int ufs_write_inode (struct inode *, struct writeback_control *); 110extern int ufs_sync_inode (struct inode *); 111extern void ufs_evict_inode (struct inode *); 112extern struct buffer_head * ufs_bread (struct inode *, unsigned, int, int *); 113extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create); 114 115/* namei.c */ 116extern const struct file_operations ufs_dir_operations; 117 118/* super.c */ 119extern void ufs_warning (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); 120extern void ufs_error (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); 121extern void ufs_panic (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); 122 123/* symlink.c */ 124extern const struct inode_operations ufs_fast_symlink_inode_operations; 125extern const struct inode_operations ufs_symlink_inode_operations; 126 127/* truncate.c */ 128extern int ufs_truncate (struct inode *, loff_t); 129extern int ufs_setattr(struct dentry *dentry, struct iattr *attr); 130 131static inline struct ufs_sb_info *UFS_SB(struct super_block *sb) 132{ 133 return sb->s_fs_info; 134} 135 136static 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) */ 146static 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) */ 152static 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 */ 158