Both bootmem and memblock are have pretty good internal documentation
coverage. With addition of some overview we get a nice description of the
early memory management.
Signed-off-by: NMike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: NMichal Hocko <mhocko@suse.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>