3 Commits

Author	SHA1	Message	Date
Shung-Hsi Yu	813f336269	selftests/bpf: Fix timer_start_deadlock failure due to hrtimer change ... Since commit f2e388a019 ("hrtimer: Reduce trace noise in hrtimer_start()"), hrtimer_cancel tracepoint is no longer called when a hrtimer is re-armed. So instead of a hrtimer_cancel followed by hrtimer_start tracepoint events, there is now only a since hrtimer_start tracepoint event with the new was_armed field set to 1, to indicated that the hrtimer was previously armed. Update timer_start_deadlock accordingly so it traces hrtimer_start tracepoint instead, with was_armed used as guard. Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Tested-by: Mykyta Yatsenko <yatsenko@meta.com> Acked-by: Mykyta Yatsenko <yatsenko@meta.com> Link: https://lore.kernel.org/r/20260415120329.129192-1-shung-hsi.yu@suse.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>	2026-04-15 08:25:04 -07:00
Alexei Starovoitov	6e65cf81ac	selftests/bpf: Strengthen timer_start_deadlock test ... Strengthen timer_start_deadlock test and check for recursion now Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20260204055147.54960-5-alexei.starovoitov@gmail.com	2026-02-04 13:12:50 -08:00
Alexei Starovoitov	67ee5ad27d	selftests/bpf: Add a testcase for deadlock avoidance ... Add a testcase that checks that deadlock avoidance is working as expected. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20260204055147.54960-3-alexei.starovoitov@gmail.com	2026-02-04 13:12:50 -08:00