node_page_state 1822 mm/page_alloc.c val->freeram = node_page_state(nid, NR_FREE_PAGES); node_page_state 232 mm/readahead.c return min(nr, (node_page_state(numa_node_id(), NR_INACTIVE) node_page_state 233 mm/readahead.c + node_page_state(numa_node_id(), NR_FREE_PAGES)) / 2);