On Thu, Nov 22, 2018 at 06:12:41PM +0800, Wei Yang wrote: >During online_pages phase, pgdat->nr_zones will be updated in case this >zone is empty. > >Currently the online_pages phase is protected by the global lock >mem_hotplug_begin(), which ensures there is no contention during the >update of nr_zones. But this global lock introduces scalability issues. > >This patch is a preparation for removing the global lock during >online_pages phase. Also this patch changes the documentation of >node_size_lock to include the protectioin of nr_zones. > >Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx> Missed this, if I am correct. :-) Acked-by: Michal Hocko <mhocko@xxxxxxxx> -- Wei Yang Help you, Help me
