git.sesse.net Git - bcachefs-tools-debian/blob - c_src/libbcachefs/btree_key_cache_types.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _BCACHEFS_BTREE_KEY_CACHE_TYPES_H
   3 #define _BCACHEFS_BTREE_KEY_CACHE_TYPES_H
   4
   5 struct btree_key_cache_freelist {
   6         struct bkey_cached      *objs[16];
   7         unsigned                nr;
   8 };
   9
  10 struct btree_key_cache {
  11         struct mutex            lock;
  12         struct rhashtable       table;
  13         bool                    table_init_done;
  14
  15         struct list_head        freed_pcpu;
  16         size_t                  nr_freed_pcpu;
  17         struct list_head        freed_nonpcpu;
  18         size_t                  nr_freed_nonpcpu;
  19
  20         struct shrinker         *shrink;
  21         unsigned                shrink_iter;
  22         struct btree_key_cache_freelist __percpu *pcpu_freed;
  23
  24         atomic_long_t           nr_freed;
  25         atomic_long_t           nr_keys;
  26         atomic_long_t           nr_dirty;
  27 };
  28
  29 struct bkey_cached_key {
  30         u32                     btree_id;
  31         struct bpos             pos;
  32 } __packed __aligned(4);
  33
  34 #endif /* _BCACHEFS_BTREE_KEY_CACHE_TYPES_H */