On Wed, Aug 19, 2020 at 07:59:54PM +0200, David Hildenbrand wrote: > We don't allow to offline memory with holes, all boot memory is online, > and all hotplugged memory cannot have holes. > > We can now simplify onlining of pages. As we only allow to online/offline > full sections and sections always span full MAX_ORDER_NR_PAGES, we can just > process MAX_ORDER - 1 pages without further special handling. > > The number of onlined pages simply corresponds to the number of pages we > were requested to online. > > While at it, refine the comment regarding the callback not exposing all > pages to the buddy. > > Acked-by: Michal Hocko <mhocko@xxxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Cc: Michal Hocko <mhocko@xxxxxxxx> > Cc: Wei Yang <richard.weiyang@xxxxxxxxxxxxxxxxx> > Cc: Baoquan He <bhe@xxxxxxxxxx> > Cc: Pankaj Gupta <pankaj.gupta.linux@xxxxxxxxx> > Cc: Oscar Salvador <osalvador@xxxxxxx> > Signed-off-by: David Hildenbrand <david@xxxxxxxxxx> Reviewed-by: Oscar Salvador <osalvador@xxxxxxx> -- Oscar Salvador SUSE L3
