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ext4
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group.h

group.h 1.1 KB
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  1. /*
    2. 

  2.  *  linux/fs/ext4/group.h
    3. 

  3.  *
    4. 

  4.  * Copyright (C) 2007 Cluster File Systems, Inc
    5. 

  5.  *
    6. 

  6.  * Author: Andreas Dilger <adilger@clusterfs.com>
    7. 

  7.  */
    8. 

  8. 

  9. #ifndef _LINUX_EXT4_GROUP_H
    10. 

  10. #define _LINUX_EXT4_GROUP_H
    11. 

  11. 

  12. extern __le16 ext4_group_desc_csum(struct ext4_sb_info *sbi, __u32 group,
    13. 

  13. 				   struct ext4_group_desc *gdp);
    14. 

  14. extern int ext4_group_desc_csum_verify(struct ext4_sb_info *sbi, __u32 group,
    15. 

  15. 				       struct ext4_group_desc *gdp);
    16. 

  16. struct buffer_head *ext4_read_block_bitmap(struct super_block *sb,
    17. 

  17. 				      ext4_group_t block_group);
    18. 

  18. extern unsigned ext4_init_block_bitmap(struct super_block *sb,
    19. 

  19. 				       struct buffer_head *bh,
    20. 

  20. 				       ext4_group_t group,
    21. 

  21. 				       struct ext4_group_desc *desc);
    22. 

  22. #define ext4_free_blocks_after_init(sb, group, desc)			\
    23. 

  23. 		ext4_init_block_bitmap(sb, NULL, group, desc)
    24. 

  24. extern unsigned ext4_init_inode_bitmap(struct super_block *sb,
    25. 

  25. 				       struct buffer_head *bh,
    26. 

  26. 				       ext4_group_t group,
    27. 

  27. 				       struct ext4_group_desc *desc);
    28. 

  28. extern void mark_bitmap_end(int start_bit, int end_bit, char *bitmap);
    29. 

  29. #endif /* _LINUX_EXT4_GROUP_H */
    30.