div_round_up
div_round_up(pcgc->hweight * cgc->weight,
div_round_up(max_elems * elem_size, PAGE_SIZE), NUMA_NO_NODE, 0);
min_chunk_size = div_round_up(SDT_TASK_MIN_ELEM_PER_ALLOC * data_size, PAGE_SIZE);
#ifndef div_round_up
#define round_up(a, b) (div_round_up((a), (b)) * (b))
SDT_TASK_CHUNK_BITMAP_U64S = div_round_up(SDT_TASK_ENTS_PER_CHUNK, 64),