Andrew,

	Here's a patch for partition management:

	-Centralize msdos mbr detection.(magic detection was made twice : in
efi and msdos)

		-mbr definition moved from efi to genhd
		-msdos partition code mbr magics removed to use the one above
		-adding genhd explicit macro used by both

	-DOS_EXTENDED_PARTITION washing#2
		(we don't want magic numbers, do we ?)
		-Remove use of <= 4 to < DOS_EXTENDED_PARTITION where needed
	-Trivial doc (so trivial indeed).
	-Some code washing

PS: It runs under !EFI (for the least)

Regards,
FabF