ROUND_TO_PAGE_SIZE
#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1))
#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1))
#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1))
#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1))
#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1))
#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1))
#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1))
#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1))
#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1))
#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1))