fs/bfs/bfs.h

   1 /*
   2  *      fs/bfs/bfs.h
   3  *      Copyright (C) 1999 Tigran Aivazian <tigran@veritas.com>
   4  */
   5 #ifndef _FS_BFS_BFS_H
   6 #define _FS_BFS_BFS_H
   7
   8 #include <linux/bfs_fs.h>
   9
  10 /*
  11  * BFS file system in-core superblock info
  12  */
  13 struct bfs_sb_info {
  14         unsigned long si_blocks;
  15         unsigned long si_freeb;
  16         unsigned long si_freei;
  17         unsigned long si_lf_eblk;
  18         unsigned long si_lasti;
  19         unsigned long * si_imap;
  20         struct buffer_head * si_sbh;            /* buffer header w/superblock */
  21 };
  22
  23 /*
  24  * BFS file system in-core inode info
  25  */
  26 struct bfs_inode_info {
  27         unsigned long i_dsk_ino; /* inode number from the disk, can be 0 */
  28         unsigned long i_sblock;
  29         unsigned long i_eblock;
  30         struct inode vfs_inode;
  31 };
  32
  33 static inline struct bfs_sb_info *BFS_SB(struct super_block *sb)
  34 {
  35         return sb->s_fs_info;
  36 }
  37
  38 static inline struct bfs_inode_info *BFS_I(struct inode *inode)
  39 {
  40         return container_of(inode, struct bfs_inode_info, vfs_inode);
  41 }
  42
  43
  44 #define printf(format, args...) \
  45         printk(KERN_ERR "BFS-fs: %s(): " format, __func__, ## args)
  46
  47 /* inode.c */
  48 extern struct inode *bfs_iget(struct super_block *sb, unsigned long ino);
  49
  50 /* file.c */
  51 extern const struct inode_operations bfs_file_inops;
  52 extern const struct file_operations bfs_file_operations;
  53 extern const struct address_space_operations bfs_aops;
  54
  55 /* dir.c */
  56 extern const struct inode_operations bfs_dir_inops;
  57 extern const struct file_operations bfs_dir_operations;
  58
  59 #endif /* _FS_BFS_BFS_H */