ext4: Add helper functions for block group descriptor field access

[oweals/u-boot.git] / fs / ext4 / ext4_common.h

diff --git a/fs/ext4/ext4_common.h b/fs/ext4/ext4_common.h
index cc9d0c5a5f78d1684b9864eb97cd38a595ed33d1..99d49e6e558331c3fc5154a45082b0270ca48f0d 100644 (file)
--- a/fs/ext4/ext4_common.h
+++ b/fs/ext4/ext4_common.h
@@ -74,5 +74,17 @@ void ext4fs_allocate_blocks(struct ext2_inode *file_inode,
                                unsigned int total_remaining_blocks,
                                unsigned int *total_no_of_block);
 void put_ext4(uint64_t off, void *buf, uint32_t size);
+struct ext2_block_group *ext4fs_get_group_descriptor
+       (const struct ext_filesystem *fs, uint32_t bg_idx);
+uint64_t ext4fs_bg_get_block_id(const struct ext2_block_group *bg,
+       const struct ext_filesystem *fs);
+uint64_t ext4fs_bg_get_inode_id(const struct ext2_block_group *bg,
+       const struct ext_filesystem *fs);
+uint64_t ext4fs_bg_get_inode_table_id(const struct ext2_block_group *bg,
+       const struct ext_filesystem *fs);
+uint64_t ext4fs_sb_get_free_blocks(const struct ext2_sblock *sb);
+void ext4fs_sb_set_free_blocks(struct ext2_sblock *sb, uint64_t free_blocks);
+uint32_t ext4fs_bg_get_free_blocks(const struct ext2_block_group *bg,
+       const struct ext_filesystem *fs);
 #endif
 #endif