-extern Uint64 Ext2_Write(tVFS_Node *node, Uint64 offset, Uint64 length, const void *buffer);
+extern size_t Ext2_Write(tVFS_Node *node, off_t offset, size_t length, const void *buffer);
+extern Uint32 Ext2_int_AllocateBlock(tExt2_Disk *Disk, Uint32 LastBlock);
+extern void Ext2_int_DeallocateBlock(tExt2_Disk *Disk, Uint32 Block);
+extern int Ext2_int_AppendBlock(tExt2_Disk *Disk, tExt2_Inode *Inode, Uint32 Block);