2.5.1-pre1
	(1) Simplified rounding and dividing macros.
		(anon)
	(2) Changed the #ifdef CONFIG_KERNEL_HACKING to
		#ifdef DEBUG_BOOTMEM
	(3) Moved the definition of NR_SEGMENTS to asm/bootmem.h
	(4) Prevent integer overflow in FEASIBLE()
		(rmk)
	(5) Prevent integer overflow in ENDS_ABOVE()
		(rmk)
	(6) Test for !segment_contains_point(optimum, goal)
		in __alloc_bootmem_core() as an additional condition
		under which the goal should be discounted as a
		possible starting address for the returned interval.
		(rmk)

2.4.15
	(1) Rearrange #ifdef CONFIG_KERNEL_HACKING so that the freeing
		of the segment pool is not made conditional on it,
		only range reporting.
	(2) reserve_bootmem_() passed treap_node_t ** instead of
		treap_node_t * to start_segment_treap().
		(rml)
	(3) Removed unused fields from bootmem_data_t.
	(4) segment_tree_contains_point() and segment_tree_intersects()
		followed the wrong children during the search process.
	(5) segment_complement() failed to detect the prefix removal
		and suffix removal cases properly.
	(6) Adjusted comment preceding segment_complement() to match
		the order in which the cases occur.