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linux-vybrid_pu...
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fs
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bfs
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bfs.h

bfs.h 1.4 KB
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  1. /*
    2. 

  2.  *	fs/bfs/bfs.h
    3. 

  3.  *	Copyright (C) 1999 Tigran Aivazian <tigran@veritas.com>
    4. 

  4.  */
    5. 

  5. #ifndef _FS_BFS_BFS_H
    6. 

  6. #define _FS_BFS_BFS_H
    7. 

  7. 

  8. #include <linux/bfs_fs.h>
    9. 

  9. 

  10. /*
    11. 

  11.  * BFS file system in-core superblock info
    12. 

  12.  */
    13. 

  13. struct bfs_sb_info {
    14. 

  14. 	unsigned long si_blocks;
    15. 

  15. 	unsigned long si_freeb;
    16. 

  16. 	unsigned long si_freei;
    17. 

  17. 	unsigned long si_lf_eblk;
    18. 

  18. 	unsigned long si_lasti;
    19. 

  19. 	unsigned long *si_imap;
    20. 

  20. 	struct buffer_head *si_sbh;		/* buffer header w/superblock */
    21. 

  21. 	struct mutex bfs_lock;
    22. 

  22. };
    23. 

  23. 

  24. /*
    25. 

  25.  * BFS file system in-core inode info
    26. 

  26.  */
    27. 

  27. struct bfs_inode_info {
    28. 

  28. 	unsigned long i_dsk_ino; /* inode number from the disk, can be 0 */
    29. 

  29. 	unsigned long i_sblock;
    30. 

  30. 	unsigned long i_eblock;
    31. 

  31. 	struct inode vfs_inode;
    32. 

  32. };
    33. 

  33. 

  34. static inline struct bfs_sb_info *BFS_SB(struct super_block *sb)
    35. 

  35. {
    36. 

  36. 	return sb->s_fs_info;
    37. 

  37. }
    38. 

  38. 

  39. static inline struct bfs_inode_info *BFS_I(struct inode *inode)
    40. 

  40. {
    41. 

  41. 	return container_of(inode, struct bfs_inode_info, vfs_inode);
    42. 

  42. }
    43. 

  43. 

  44. 

  45. #define printf(format, args...) \
    46. 

  46. 	printk(KERN_ERR "BFS-fs: %s(): " format, __func__, ## args)
    47. 

  47. 

  48. /* inode.c */
    49. 

  49. extern struct inode *bfs_iget(struct super_block *sb, unsigned long ino);
    50. 

  50. 

  51. /* file.c */
    52. 

  52. extern const struct inode_operations bfs_file_inops;
    53. 

  53. extern const struct file_operations bfs_file_operations;
    54. 

  54. extern const struct address_space_operations bfs_aops;
    55. 

  55. 

  56. /* dir.c */
    57. 

  57. extern const struct inode_operations bfs_dir_inops;
    58. 

  58. extern const struct file_operations bfs_dir_operations;
    59. 

  59. 

  60. #endif /* _FS_BFS_BFS_H */
    61.