PCPU_EMPTY_POP_PAGES_HIGH
(PCPU_EMPTY_POP_PAGES_HIGH + chunk->nr_empty_pop_pages) &&
nr_to_pop = PCPU_EMPTY_POP_PAGES_HIGH;
nr_to_pop = clamp(PCPU_EMPTY_POP_PAGES_HIGH -
0, PCPU_EMPTY_POP_PAGES_HIGH);
if (pcpu_nr_empty_pop_pages < PCPU_EMPTY_POP_PAGES_HIGH) {