v3: https://lore.kernel.org/bpf/20250805130346.1225535-1-iii@xxxxxxxxxxxxx/ v3 -> v4: Rename the new field to dont_enable (Alexei, Eduard). Switch the Fixes: tag in patch 2 (Alexander, Thomas). Fix typos in the cover letter (Thomas). v2: https://lore.kernel.org/bpf/20250728144340.711196-1-tmricht@xxxxxxxxxxxxx/ v2 -> v3: Use no_ioctl_enable in perf. v1: https://lore.kernel.org/bpf/20250725093405.3629253-1-tmricht@xxxxxxxxxxxxx/ v1 -> v2: Introduce no_ioctl_enable (Jiri). Hi, This series fixes a regression caused by moving UID filtering to BPF. The regression affects all events that support auxiliary data, most notably, "cycles" events on s390, but also PT events on Intel. The symptom is missing events when UID filtering is enabled. Patch 1 introduces a new option for the bpf_program__attach_perf_event_opts() function. Patch 2 makes use of it in perf, and also contains a lot of technical details of why exactly the problem is occurring. Thanks to Thomas Richter for the investigation and the initial version of this fix, and to Jiri Olsa for suggestions. Best regards, Ilya Ilya Leoshkevich (2): libbpf: Add the ability to suppress perf event enablement perf bpf-filter: Enable events manually tools/lib/bpf/libbpf.c | 13 ++++++++----- tools/lib/bpf/libbpf.h | 4 +++- tools/perf/util/bpf-filter.c | 5 ++++- 3 files changed, 15 insertions(+), 7 deletions(-) -- 2.50.1
