fs/bcachefs/lru_format.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _BCACHEFS_LRU_FORMAT_H
   3 #define _BCACHEFS_LRU_FORMAT_H
   4
   5 struct bch_lru {
   6         struct bch_val          v;
   7         __le64                  idx;
   8 } __packed __aligned(8);
   9
  10 #define BCH_LRU_TYPES()         \
  11         x(read)                 \
  12         x(fragmentation)
  13
  14 enum bch_lru_type {
  15 #define x(n) BCH_LRU_##n,
  16         BCH_LRU_TYPES()
  17 #undef x
  18 };
  19
  20 #define BCH_LRU_FRAGMENTATION_START     ((1U << 16) - 1)
  21
  22 #define LRU_TIME_BITS                   48
  23 #define LRU_TIME_MAX                    ((1ULL << LRU_TIME_BITS) - 1)
  24
  25 #endif /* _BCACHEFS_LRU_FORMAT_H */