On Wed, Oct 26, 2022 at 11:29:48AM +0800, Ming Lei wrote: > Both two are basically same, with two callbacks, just .check_only is saved, > nothing else, meantime with one extra similar callback added. They don't seem to share much at all. The original callback was 4 lines of code, and the special case adds 5 new lines that returns before half of the function's pre-existing code.