Merge pull request ceph#64252 from xxhdx1985126/wip-seastore-lba-bottom-up-search

crimson/os/seastore/btree: bottom-up search capability

Reviewed-by: Yingxin Cheng <[email protected]>

Author: cyx1231st

src/crimson/os/seastore/backref/btree_backref_manager.cc

@@ -526,7 +526,7 @@ BtreeBackrefManager::remove_mapping(
 	return btree.remove(
 	  c,
 	  iter
-	).si_then([ret] {
+	).si_then([ret](auto) {
 	  return ret;
 	});
       });