Update bcachefs sources to 021e62a098 bcachefs: Fix error in filesystem initialization

1 files changed, 21 insertions, 0 deletions

diff --git a/libbcachefs/btree_key_cache.h b/libbcachefs/btree_key_cache.h
index d448264a..d7d31a06 100644
--- a/libbcachefs/btree_key_cache.h
+++ b/libbcachefs/btree_key_cache.h
@@ -1,6 +1,24 @@
 #ifndef _BCACHEFS_BTREE_KEY_CACHE_H
 #define _BCACHEFS_BTREE_KEY_CACHE_H
 
+static inline size_t bch2_nr_btree_keys_need_flush(struct bch_fs *c)
+{
+	size_t nr_dirty = READ_ONCE(c->btree_key_cache.nr_dirty);
+	size_t nr_keys = READ_ONCE(c->btree_key_cache.nr_dirty);
+	size_t max_dirty = 4096 + 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 = READ_ONCE(c->btree_key_cache.nr_dirty);
+	size_t nr_keys = READ_ONCE(c->btree_key_cache.nr_dirty);
+	size_t max_dirty = 4096 + (nr_keys * 3) / 4;
+
+	return nr_dirty > max_dirty;
+}
+
 struct bkey_cached *
 bch2_btree_key_cache_find(struct bch_fs *, enum btree_id, struct bpos);
 
@@ -25,4 +43,7 @@ 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 */