round_up
#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
#define round_up(x, y) ((((x) - 1) | __round_mask(x, y)) + 1)
#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
#define round_up(a, b) (div_round_up((a), (b)) * (b))
#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
#define round_up(val, rnd) \