X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libbcachefs%2Fbtree_key_cache.h;h=e6b2cd0dd2c1afc2a21c628763422c2a2a314f69;hb=7a716b76b5963dc2d158883f4497bab221932412;hp=fbc29336091fdb2a381beba1d56b95306289b294;hpb=05408b6f8fea54bf53e68a4ef24291214970f6d0;p=bcachefs-tools-debian

diff --git a/libbcachefs/btree_key_cache.h b/libbcachefs/btree_key_cache.h
index fbc2933..e6b2cd0 100644
--- a/libbcachefs/btree_key_cache.h
+++ b/libbcachefs/btree_key_cache.h
@@ -1,23 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHEFS_BTREE_KEY_CACHE_H
 #define _BCACHEFS_BTREE_KEY_CACHE_H
 
-int bch2_btree_iter_traverse_cached(struct btree_iter *);
-
-bool bch2_btree_insert_key_cached(struct btree_trans *,
-			struct btree_iter *, struct bkey_i *);
-int bch2_btree_key_cache_flush(struct btree_trans *,
-			       enum btree_id, struct bpos);
-#ifdef CONFIG_BCACHEFS_DEBUG
-void bch2_btree_key_cache_verify_clean(struct btree_trans *,
-				enum btree_id, struct bpos);
-#else
-static inline void
-bch2_btree_key_cache_verify_clean(struct btree_trans *trans,
-				enum btree_id id, struct bpos pos) {}
-#endif
+static inline size_t bch2_nr_btree_keys_need_flush(struct bch_fs *c)
+{
+	size_t nr_dirty = atomic_long_read(&c->btree_key_cache.nr_dirty);
+	size_t nr_keys = atomic_long_read(&c->btree_key_cache.nr_keys);
+	size_t max_dirty = 1024 + nr_keys  / 2;
+
+	return max_t(ssize_t, 0, nr_dirty - max_dirty);
+}
+
+static inline bool bch2_btree_key_cache_must_wait(struct bch_fs *c)
+{
+	size_t nr_dirty = atomic_long_read(&c->btree_key_cache.nr_dirty);
+	size_t nr_keys = atomic_long_read(&c->btree_key_cache.nr_keys);
+	size_t max_dirty = 4096 + (nr_keys * 3) / 4;
+
+	return nr_dirty > max_dirty;
+}
+
+int bch2_btree_key_cache_journal_flush(struct journal *,
+				struct journal_entry_pin *, u64);
+
+struct bkey_cached *
+bch2_btree_key_cache_find(struct bch_fs *, enum btree_id, struct bpos);
+
+int bch2_btree_path_traverse_cached(struct btree_trans *, struct btree_path *,
+				    unsigned);
+
+bool bch2_btree_insert_key_cached(struct btree_trans *, unsigned,
+			struct btree_insert_entry *);
+void bch2_btree_key_cache_drop(struct btree_trans *,
+			       struct btree_path *);
 
 void bch2_fs_btree_key_cache_exit(struct btree_key_cache *);
 void bch2_fs_btree_key_cache_init_early(struct btree_key_cache *);
 int bch2_fs_btree_key_cache_init(struct btree_key_cache *);
 
+void bch2_btree_key_cache_to_text(struct printbuf *, struct btree_key_cache *);
+
+void bch2_btree_key_cache_exit(void);
+int __init bch2_btree_key_cache_init(void);
+
 #endif /* _BCACHEFS_BTREE_KEY_CACHE_H */