+#define BB_LEN_MASK (0x00000000000001FFULL)
+#define BB_OFFSET_MASK (0x7FFFFFFFFFFFFE00ULL)
+#define BB_ACK_MASK (0x8000000000000000ULL)
+#define BB_MAX_LEN 512
+#define BB_OFFSET(x) (((x) & BB_OFFSET_MASK) >> 9)
+#define BB_LEN(x) (((x) & BB_LEN_MASK) + 1)
+#define BB_ACK(x) (!!((x) & BB_ACK_MASK))
+#define BB_MAKE(a, l, ack) (((a)<<9) | ((l)-1) | ((u64)(!!(ack)) << 63))
+
+extern int md_is_badblock(struct badblocks *bb, sector_t s, int sectors,
+ sector_t *first_bad, int *bad_sectors);
+static inline int is_badblock(mdk_rdev_t *rdev, sector_t s, int sectors,
+ sector_t *first_bad, int *bad_sectors)
+{
+ if (unlikely(rdev->badblocks.count)) {
+ int rv = md_is_badblock(&rdev->badblocks, rdev->data_offset + s,
+ sectors,
+ first_bad, bad_sectors);
+ if (rv)
+ *first_bad -= rdev->data_offset;
+ return rv;
+ }
+ return 0;
+}
+extern int rdev_set_badblocks(mdk_rdev_t *rdev, sector_t s, int sectors,
+ int acknowledged);
+extern int rdev_clear_badblocks(mdk_rdev_t *rdev, sector_t s, int sectors);
+extern void md_ack_all_badblocks(struct badblocks *bb);
+