1 /* 2 * linux/fs/ext4/group.h 3 * 4 * Copyright (C) 2007 Cluster File Systems, Inc 5 * 6 * Author: Andreas Dilger <adilger@clusterfs.com> 7 */ 8 9 #ifndef _LINUX_EXT4_GROUP_H 10 #define _LINUX_EXT4_GROUP_H 11 12 extern __le16 ext4_group_desc_csum(struct ext4_sb_info *sbi, __u32 group, 13 struct ext4_group_desc *gdp); 14 extern int ext4_group_desc_csum_verify(struct ext4_sb_info *sbi, __u32 group, 15 struct ext4_group_desc *gdp); 16 struct buffer_head *ext4_read_block_bitmap(struct super_block *sb, 17 ext4_group_t block_group); 18 extern unsigned ext4_init_block_bitmap(struct super_block *sb, 19 struct buffer_head *bh, 20 ext4_group_t group, 21 struct ext4_group_desc *desc); 22 #define ext4_free_blocks_after_init(sb, group, desc) \ 23 ext4_init_block_bitmap(sb, NULL, group, desc) 24 extern unsigned ext4_init_inode_bitmap(struct super_block *sb, 25 struct buffer_head *bh, 26 ext4_group_t group, 27 struct ext4_group_desc *desc); 28 extern void mark_bitmap_end(int start_bit, int end_bit, char *bitmap); 29 #endif /* _LINUX_EXT4_GROUP_H */ 30