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jcastillo |
#ifndef _XIA_FS_H
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#define _XIA_FS_H
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/*
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* include/linux/xia_fs.h
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*
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* Copyright (C) Q. Frank Xia, 1993.
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*
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* Based on Linus' minix_fs.h.
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* Copyright (C) Linus Torvalds, 1991, 1992.
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*/
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#define _XIAFS_SUPER_MAGIC 0x012FD16D
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#define _XIAFS_ROOT_INO 1
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#define _XIAFS_BAD_INO 2
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#define _XIAFS_NAME_LEN 248
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#define _XIAFS_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof(struct xiafs_inode)))
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struct xiafs_inode { /* 64 bytes */
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mode_t i_mode;
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nlink_t i_nlinks;
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uid_t i_uid;
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gid_t i_gid;
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size_t i_size; /* 8 */
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time_t i_ctime;
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time_t i_atime;
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time_t i_mtime;
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daddr_t i_zone[8];
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daddr_t i_ind_zone;
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daddr_t i_dind_zone;
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};
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/*
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* linux super-block data on disk
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*/
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struct xiafs_super_block {
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u_char s_boot_segment[512]; /* 1st sector reserved for boot */
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u_long s_zone_size; /* 0: the name says it */
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u_long s_nzones; /* 1: volume size, zone aligned */
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u_long s_ninodes; /* 2: # of inodes */
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u_long s_ndatazones; /* 3: # of data zones */
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u_long s_imap_zones; /* 4: # of imap zones */
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u_long s_zmap_zones; /* 5: # of zmap zones */
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u_long s_firstdatazone; /* 6: first data zone */
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u_long s_zone_shift; /* 7: z size = 1KB << z shift */
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u_long s_max_size; /* 8: max size of a single file */
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u_long s_reserved0; /* 9: reserved */
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u_long s_reserved1; /* 10: */
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u_long s_reserved2; /* 11: */
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u_long s_reserved3; /* 12: */
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u_long s_firstkernzone; /* 13: first kernel zone */
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u_long s_kernzones; /* 14: kernel size in zones */
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u_long s_magic; /* 15: magic number for xiafs */
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};
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struct xiafs_direct {
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ino_t d_ino;
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u_short d_rec_len;
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u_char d_name_len;
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char d_name[_XIAFS_NAME_LEN+1];
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};
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#ifdef __KERNEL__
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extern int xiafs_lookup(struct inode * dir,const char * name, int len,
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struct inode ** result);
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extern int xiafs_create(struct inode * dir,const char * name, int len, int mode,
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struct inode ** result);
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extern int xiafs_mkdir(struct inode * dir, const char * name, int len, int mode);
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extern int xiafs_rmdir(struct inode * dir, const char * name, int len);
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extern int xiafs_unlink(struct inode * dir, const char * name, int len);
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extern int xiafs_symlink(struct inode * inode, const char * name, int len,
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const char * symname);
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extern int xiafs_link(struct inode * oldinode, struct inode * dir,
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const char * name, int len);
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extern int xiafs_mknod(struct inode * dir, const char * name, int len,
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int mode, int rdev);
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extern int xiafs_rename(struct inode * old_dir, const char * old_name,
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int old_len, struct inode * new_dir,
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const char * new_name, int new_len,
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int must_be_dir);
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extern struct inode * xiafs_new_inode(struct inode * dir);
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extern void xiafs_free_inode(struct inode * inode);
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extern unsigned long xiafs_count_free_inodes(struct super_block *sb);
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extern int xiafs_new_zone(struct super_block * sb, u_long prev_addr);
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extern void xiafs_free_zone(struct super_block * sb, int block);
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extern unsigned long xiafs_count_free_zones(struct super_block *sb);
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extern int xiafs_bmap(struct inode *,int);
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extern struct buffer_head * xiafs_getblk(struct inode *, int, int);
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extern struct buffer_head * xiafs_bread(struct inode *, int, int);
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extern void xiafs_truncate(struct inode *);
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extern void xiafs_put_super(struct super_block *);
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extern struct super_block *xiafs_read_super(struct super_block *,void *,int);
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extern int init_xiafs_fs(void);
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extern void xiafs_read_inode(struct inode *);
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extern void xiafs_write_inode(struct inode *);
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extern void xiafs_put_inode(struct inode *);
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extern void xiafs_statfs(struct super_block *, struct statfs *, int);
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extern int xiafs_sync_inode(struct inode *);
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extern int xiafs_sync_file(struct inode *, struct file *);
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extern struct inode_operations xiafs_file_inode_operations;
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extern struct inode_operations xiafs_dir_inode_operations;
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extern struct inode_operations xiafs_symlink_inode_operations;
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#endif /* __KERNEL__ */
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#endif /* _XIA_FS_H */
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