On Thu, May 30, 2024 at 10:53 AM Martin KaFai Lau <martin.lau@xxxxxxxxx> wrote: > > [ The mailing list got dropped in your reply, so CC back the list ] > > On 5/29/24 11:05 PM, Kuifeng Lee wrote: > > On Wed, May 29, 2024 at 2:51 PM Martin KaFai Lau <martin.lau@xxxxxxxxx> wrote: > >> > >> On 5/24/24 3:30 PM, Kui-Feng Lee wrote: > >>> @@ -832,11 +865,20 @@ static int bpf_dummy_reg(void *kdata, struct bpf_link *link) > >>> if (ops->test_2) > >>> ops->test_2(4, ops->data); > >>> > >>> + spin_lock(&detach_lock); > >>> + if (!link_to_detach) > >>> + link_to_detach = link; > >> > >> bpf_testmod_ops is used in a few different tests now. Can you check if > >> "./test_progs -j <num_of_parallel_workers>" will work considering link_to_detach > >> here is the very first registered link. > > > > Yes, it works. Since the test in test_struct_ops_modules.c is serial, > > no other test will > > be run simultaneously. And its subtests are run one after another. > > just did a quick search on "bpf_map__attach_struct_ops", how about the other > tests like struct_ops_autocreate.c and test_struct_ops_multi_pages.c ? Got it! I will put all these test to serial. WDYT? > > > > > >> > >>> + spin_unlock(&detach_lock); > >>> + > >>> return 0; > >>> } > >> >