So we will go with the following. /* * We do not want to confuse userspace by sysfs files/directories for node * without any memory attached to it, so this node is not marked as * N_MEMORY and not marked online so that no sysfs hierarchy will be * created via register_one_node for this node. The pgdat will get fully * initialized by hotadd_init_pgdat() when memory is hotpluged into this * node */ OK? -- Michal Hocko SUSE Labs