|  | /* | 
|  | *  linux/fs/ext4/group.h | 
|  | * | 
|  | * Copyright (C) 2007 Cluster File Systems, Inc | 
|  | * | 
|  | * Author: Andreas Dilger <adilger@clusterfs.com> | 
|  | */ | 
|  |  | 
|  | #ifndef _LINUX_EXT4_GROUP_H | 
|  | #define _LINUX_EXT4_GROUP_H | 
|  |  | 
|  | extern __le16 ext4_group_desc_csum(struct ext4_sb_info *sbi, __u32 group, | 
|  | struct ext4_group_desc *gdp); | 
|  | extern int ext4_group_desc_csum_verify(struct ext4_sb_info *sbi, __u32 group, | 
|  | struct ext4_group_desc *gdp); | 
|  | struct buffer_head *read_block_bitmap(struct super_block *sb, | 
|  | ext4_group_t block_group); | 
|  | extern unsigned ext4_init_block_bitmap(struct super_block *sb, | 
|  | struct buffer_head *bh, | 
|  | ext4_group_t group, | 
|  | struct ext4_group_desc *desc); | 
|  | #define ext4_free_blocks_after_init(sb, group, desc)			\ | 
|  | ext4_init_block_bitmap(sb, NULL, group, desc) | 
|  | extern unsigned ext4_init_inode_bitmap(struct super_block *sb, | 
|  | struct buffer_head *bh, | 
|  | ext4_group_t group, | 
|  | struct ext4_group_desc *desc); | 
|  | extern void mark_bitmap_end(int start_bit, int end_bit, char *bitmap); | 
|  | #endif /* _LINUX_EXT4_GROUP_H */ |