pgdat_init_n_undone 1598 mm/page_alloc.c static atomic_t pgdat_init_n_undone __initdata; pgdat_init_n_undone 1603 mm/page_alloc.c if (atomic_dec_and_test(&pgdat_init_n_undone)) pgdat_init_n_undone 1936 mm/page_alloc.c atomic_set(&pgdat_init_n_undone, num_node_state(N_MEMORY));