12 #define __round_mask(x, y) ((__typeof__(x))((y)-1))  argument
22 #define round_up(x, y) ((((x)-1) | __round_mask(x, y)) + 1)  argument
32 #define round_down(x, y) ((x) & ~__round_mask(x, y))  argument
60 #define roundup(x, y)                            \  argument
63 		(((x) + (__y - 1)) / __y) * __y; \
73 #define rounddown(x, y)              \  argument
75 		typeof(x) __x = (x); \
85 #define DIV_ROUND_CLOSEST(x, divisor)                                \  argument
87 		typeof(x) __x = x;                                   \
89 		(((typeof(x))-1) > 0 || ((typeof(divisor))-1) > 0 || \
98 #define DIV_ROUND_CLOSEST_ULL(x, divisor)                  \  argument
101 		unsigned long long _tmp = (x) + (__d) / 2; \