4 * Copyright (C) 2001-2002 Will Dyson <will_dyson@pobox.com>
5 * Copyright (C) 1999 Makoto Kato (m_kato@ga2.so-net.ne.jp)
11 #include "befs_fs_types.h"
14 #define BEFS_VERSION "0.9.3"
17 /* Sector_t makes this sillyness obsolete */
18 typedef u64 befs_blocknr_t;
19 typedef u32 vfs_blocknr_t;
22 * BeFS in memory structures
25 typedef struct befs_mount_options {
34 typedef struct befs_sb_info {
39 befs_off_t num_blocks;
40 befs_off_t used_blocks;
44 /* Allocation group information */
49 /* jornal log entry */
50 befs_block_run log_blocks;
54 befs_inode_addr root_dir;
55 befs_inode_addr indices;
58 befs_mount_options mount_opts;
59 struct nls_table *nls;
63 typedef struct befs_inode_info {
67 befs_inode_addr i_inode_num;
68 befs_inode_addr i_parent;
69 befs_inode_addr i_attribute;
73 char symlink[BEFS_SYMLINK_LEN];
76 struct inode vfs_inode;
92 /****************************/
94 void befs_error(const struct super_block *sb, const char *fmt, ...);
95 void befs_warning(const struct super_block *sb, const char *fmt, ...);
96 void befs_debug(const struct super_block *sb, const char *fmt, ...);
98 void befs_dump_super_block(const struct super_block *sb, befs_super_block *);
99 void befs_dump_inode(const struct super_block *sb, befs_inode *);
100 void befs_dump_index_entry(const struct super_block *sb, befs_btree_super *);
101 void befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead *);
102 void befs_dump_inode_addr(const struct super_block *sb, befs_inode_addr);
103 /****************************/
106 /* Gets a pointer to the private portion of the super_block
107 * structure from the public part
109 static inline befs_sb_info *
110 BEFS_SB(const struct super_block *super)
112 return (befs_sb_info *) super->s_fs_info;
115 static inline befs_inode_info *
116 BEFS_I(const struct inode *inode)
118 return list_entry(inode, struct befs_inode_info, vfs_inode);
121 static inline befs_blocknr_t
122 iaddr2blockno(struct super_block *sb, befs_inode_addr * iaddr)
124 return ((iaddr->allocation_group << BEFS_SB(sb)->ag_shift) +
128 static inline befs_inode_addr
129 blockno2iaddr(struct super_block *sb, befs_blocknr_t blockno)
131 befs_inode_addr iaddr;
132 iaddr.allocation_group = blockno >> BEFS_SB(sb)->ag_shift;
134 blockno - (iaddr.allocation_group << BEFS_SB(sb)->ag_shift);
140 static inline unsigned int
141 befs_iaddrs_per_block(struct super_block *sb)
143 return BEFS_SB(sb)->block_size / sizeof (befs_inode_addr);
147 befs_iaddr_is_empty(befs_inode_addr * iaddr)
149 return (!iaddr->allocation_group) && (!iaddr->start) && (!iaddr->len);
153 befs_brun_size(struct super_block *sb, befs_block_run run)
155 return BEFS_SB(sb)->block_size * run.len;
158 #endif /* _LINUX_BEFS_H */