DIV_ROUND_UP       48 include/linux/kernel.h #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
DIV_ROUND_UP       46 include/linux/mroute6.h #define	DIV_ROUND_UP(x,y)	(((x) + ((y) - 1)) / (y))