extern void *mem_pieces_find(unsigned int size, unsigned int align);
extern void mem_pieces_remove(struct mem_pieces *mp, unsigned int start,
unsigned int size, int must_exist);
-extern void mem_pieces_append(struct mem_pieces *mp, unsigned int start,
- unsigned int size);
extern void mem_pieces_coalesce(struct mem_pieces *mp);
extern void mem_pieces_sort(struct mem_pieces *mp);