diff --git a/fs/bcachefs/btree_io.c b/fs/bcachefs/btree_io.c
index f523039f1be9..95a141c12e1d 100644
--- a/fs/bcachefs/btree_io.c
+++ b/fs/bcachefs/btree_io.c
@@ -534,7 +534,7 @@ static void btree_err_msg(struct printbuf *out, struct bch_fs *c,
 	printbuf_indent_add(out, 2);
 
 	prt_printf(out, "\nnode offset %u/%u",
-		   b->written, btree_ptr_sectors_written(&b->key));
+		   b->written, btree_ptr_sectors_written(bkey_i_to_s_c(&b->key)));
 	if (i)
 		prt_printf(out, " bset u64s %u", le16_to_cpu(i->u64s));
 	if (k)
@@ -689,7 +689,7 @@ static int validate_bset(struct bch_fs *c, struct bch_dev *ca,
 			 int write, bool have_retry, bool *saw_error)
 {
 	unsigned version = le16_to_cpu(i->version);
-	unsigned ptr_written = btree_ptr_sectors_written(&b->key);
+	unsigned ptr_written = btree_ptr_sectors_written(bkey_i_to_s_c(&b->key));
 	struct printbuf buf1 = PRINTBUF;
 	struct printbuf buf2 = PRINTBUF;
 	int ret = 0;
@@ -1005,7 +1005,7 @@ int bch2_btree_node_read_done(struct bch_fs *c, struct bch_dev *ca,
 	bool updated_range = b->key.k.type == KEY_TYPE_btree_ptr_v2 &&
 		BTREE_PTR_RANGE_UPDATED(&bkey_i_to_btree_ptr_v2(&b->key)->v);
 	unsigned u64s;
-	unsigned ptr_written = btree_ptr_sectors_written(&b->key);
+	unsigned ptr_written = btree_ptr_sectors_written(bkey_i_to_s_c(&b->key));
 	struct printbuf buf = PRINTBUF;
 	int ret = 0, retry_read = 0, write = READ;
 	u64 start_time = local_clock();
@@ -2138,7 +2138,7 @@ void __bch2_btree_node_write(struct bch_fs *c, struct btree *b, unsigned flags)
 
 	if (!b->written &&
 	    b->key.k.type == KEY_TYPE_btree_ptr_v2)
-		BUG_ON(btree_ptr_sectors_written(&b->key) != sectors_to_write);
+		BUG_ON(btree_ptr_sectors_written(bkey_i_to_s_c(&b->key)) != sectors_to_write);
 
 	memset(data + bytes_to_write, 0,
 	       (sectors_to_write << 9) - bytes_to_write);
diff --git a/fs/bcachefs/btree_io.h b/fs/bcachefs/btree_io.h
index 2b8b564fc560..63d76f5c6403 100644
--- a/fs/bcachefs/btree_io.h
+++ b/fs/bcachefs/btree_io.h
@@ -27,10 +27,10 @@ static inline void clear_btree_node_dirty_acct(struct bch_fs *c, struct btree *b
 		atomic_dec(&c->btree_cache.dirty);
 }
 
-static inline unsigned btree_ptr_sectors_written(struct bkey_i *k)
+static inline unsigned btree_ptr_sectors_written(struct bkey_s_c k)
 {
-	return k->k.type == KEY_TYPE_btree_ptr_v2
-		? le16_to_cpu(bkey_i_to_btree_ptr_v2(k)->v.sectors_written)
+	return k.k->type == KEY_TYPE_btree_ptr_v2
+		? le16_to_cpu(bkey_s_c_to_btree_ptr_v2(k).v->sectors_written)
 		: 0;
 }
 
diff --git a/fs/bcachefs/btree_update_interior.c b/fs/bcachefs/btree_update_interior.c
index c58ceb328645..6d340f36aacf 100644
--- a/fs/bcachefs/btree_update_interior.c
+++ b/fs/bcachefs/btree_update_interior.c
@@ -1359,7 +1359,7 @@ static void bch2_insert_fixup_btree_ptr(struct btree_update *as,
 	unsigned long old, new;
 
 	BUG_ON(insert->k.type == KEY_TYPE_btree_ptr_v2 &&
-	       !btree_ptr_sectors_written(insert));
+	       !btree_ptr_sectors_written(bkey_i_to_s_c(insert)));
 
 	if (unlikely(!test_bit(JOURNAL_replay_done, &c->journal.flags)))
 		bch2_journal_key_overwritten(c, b->c.btree_id, b->c.level, insert->k.p);
diff --git a/fs/bcachefs/move.c b/fs/bcachefs/move.c
index e714e3bd5bbb..7d3920e03742 100644
--- a/fs/bcachefs/move.c
+++ b/fs/bcachefs/move.c
@@ -780,7 +780,7 @@ int bch2_evacuate_bucket(struct moving_context *ctxt,
 			if (!b)
 				goto next;
 
-			unsigned sectors = btree_ptr_sectors_written(&b->key);
+			unsigned sectors = btree_ptr_sectors_written(bkey_i_to_s_c(&b->key));
 
 			ret = bch2_btree_node_rewrite(trans, &iter, b, 0);
 			bch2_trans_iter_exit(trans, &iter);