1 files changed, 23 insertions, 3 deletions
diff --git a/fs/bcachefs/lru.h b/fs/bcachefs/lru.h
index 925c29b49b86..2e22f139848a 100644
--- a/fs/bcachefs/lru.h
+++ b/fs/bcachefs/lru.h
@@ -2,6 +2,26 @@
 #ifndef _BCACHEFS_LRU_H
 #define _BCACHEFS_LRU_H
 
+#define LRU_TIME_BITS	48
+#define LRU_TIME_MAX	((1ULL << LRU_TIME_BITS) - 1)
+
+static inline struct bpos lru_pos(u16 lru_id, u64 dev_bucket, u64 time)
+{
+	EBUG_ON(time > LRU_TIME_MAX);
+
+	return POS(((u64) lru_id << LRU_TIME_BITS)|time, dev_bucket);
+}
+
+static inline u64 lru_pos_id(struct bpos pos)
+{
+	return pos.inode >> LRU_TIME_BITS;
+}
+
+static inline u64 lru_pos_time(struct bpos pos)
+{
+	return pos.inode & ~(~0ULL << LRU_TIME_BITS);
+}
+
 int bch2_lru_invalid(const struct bch_fs *, struct bkey_s_c, int, struct printbuf *);
 void bch2_lru_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
 
@@ -10,9 +30,9 @@ void bch2_lru_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
 	.val_to_text	= bch2_lru_to_text,	\
 })
 
-int bch2_lru_delete(struct btree_trans *, u64, u64, u64, struct bkey_s_c);
-int bch2_lru_set(struct btree_trans *, u64, u64, u64 *);
-int bch2_lru_change(struct btree_trans *, u64, u64, u64, u64 *, struct bkey_s_c);
+int bch2_lru_del(struct btree_trans *, u16, u64, u64);
+int bch2_lru_set(struct btree_trans *, u16, u64, u64);
+int bch2_lru_change(struct btree_trans *, u16, u64, u64, u64);
 
 int bch2_check_lrus(struct bch_fs *);