On Thu, 27 Apr 2023 23:23:31 +0800 Yafang Shao <laoar.shao@xxxxxxxxx> wrote: > > But I thought you can run a bpf_prog from another bpf_prog. So you don't > > want to prevent it. You need other logic to detect if it was not suppose to > > recurs. > > > > If so, we have to keep the prog->active to prevent it, then I'm not > sure if it is worth adding test_recursion_*(). I thought that the whole point of this exercise was because the migrate_disable() itself could be traced (or call something that can), and that's outside of prog->active protection. Which the test_recursion_*() code was created for. -- Steve