#define ALIGN(x,a) (((x)+(a)-1)&~((a)-1))
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
+#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
#define KERN_EMERG "<0>" /* system is unusable */
#define KERN_ALERT "<1>" /* action must be taken immediately */