121 struct preftrees {  struct
122 	struct preftree direct;    /* BTRFS_SHARED_[DATA|BLOCK]_REF_KEY */
123 	struct preftree indirect;  /* BTRFS_[TREE_BLOCK|EXTENT_DATA]_REF_KEY */
124 	struct preftree indirect_missing_keys;
369 			  struct preftrees *preftrees, int level, u64 parent,  in add_direct_ref()
379 			    struct preftrees *preftrees, u64 root_id,  in add_indirect_ref()
392 static int is_shared_data_backref(struct preftrees *preftrees, u64 bytenr)  in is_shared_data_backref()
419 			   struct preftrees *preftrees, struct prelim_ref *ref,  in add_all_parents()
542 				struct preftrees *preftrees,  in resolve_indirect_ref()
681 				 struct preftrees *preftrees,  in resolve_indirect_refs()
789 			    struct preftrees *preftrees, bool lock)  in add_missing_keys()
835 			    struct preftrees *preftrees, struct share_check *sc)  in add_delayed_refs()
960 			   int *info_level, struct preftrees *preftrees,  in add_inline_refs()
1083 			  int info_level, struct preftrees *preftrees,  in add_keyed_refs()
1212 	struct preftrees preftrees = {  local