-/* lov_do_div64(a, b) returns a % b, and a = a / b.
- * The 32-bit code is LOV-specific due to knowing about stripe limits in
- * order to reduce the divisor to a 32-bit number. If the divisor is
- * already a 32-bit value the compiler handles this directly. */
-#if BITS_PER_LONG == 64
-# define lov_do_div64(n, base) ({ \
- uint64_t __base = (base); \
- uint64_t __rem; \
- __rem = ((uint64_t)(n)) % __base; \
- (n) = ((uint64_t)(n)) / __base; \
- __rem; \
-})
-#elif BITS_PER_LONG == 32
-# define lov_do_div64(n, base) ({ \
- uint64_t __num = (n); \
- uint64_t __rem; \
- if ((sizeof(base) > 4) && (((base) & 0xffffffff00000000ULL) != 0)) { \
- int __remainder; \
- LASSERTF(!((base) & (LOV_MIN_STRIPE_SIZE - 1)), \
- "64 bit lov division %llu / %llu\n", \
- __num, (uint64_t)(base)); \
- __remainder = __num & (LOV_MIN_STRIPE_SIZE - 1); \
- __num >>= LOV_MIN_STRIPE_BITS; \
- __rem = do_div(__num, (base) >> LOV_MIN_STRIPE_BITS); \
- __rem <<= LOV_MIN_STRIPE_BITS; \
- __rem += __remainder; \
- } else { \
- __rem = do_div(__num, base); \
- } \
- (n) = __num; \
- __rem; \
-})
-#endif
-