diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 1342fe9..22250a4 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2686,6 +2686,8 @@ extern void ext4_mark_bitmap_end(int start_bit, int end_bit, char *bitmap);
 extern int ext4_init_inode_table(struct super_block *sb,
 				 ext4_group_t group, int barrier);
 extern void ext4_end_bitmap_read(struct buffer_head *bh, int uptodate);
+extern struct buffer_head *
+ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group);
 
 /* mballoc.c */
 extern const struct file_operations ext4_seq_prealloc_table_fops;
@@ -2805,6 +2807,10 @@ extern int ext4_ext_migrate(struct inode *);
 extern int ext4_ind_migrate(struct inode *inode);
 
 /* namei.c */
+extern struct buffer_head *ext4_append(handle_t *handle,
+				       struct inode *inode,
+				       ext4_lblk_t *block);
+
 extern int ext4_dirblock_csum_verify(struct inode *inode,
 				     struct buffer_head *bh);
 extern int ext4_orphan_add(handle_t *, struct inode *);