On 8/5/25 14:54, Ilya Leoshkevich wrote:
> v2: https://lore.kernel.org/bpf/20250728144340.711196-1-tmricht@linux.ibm.com/
> v2 -> v3: Use no_ioctl_enable in perf.
>
> v1: https://lore.kernel.org/bpf/20250725093405.3629253-1-tmricht@linux.ibm.com/
> 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.
> Ppatch 2 makes use of it in perf, and also contains a lot of technical
Typo Patch
> details of why exactly the prolblem is occurring.
Typo problem
>
> 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(-)
>
Thanks for taking over!!!
For the whole series
Tested-by: Thomas Richter <tmricht@linux.ibm.com>
--
Thomas Richter, Dept 3303, IBM s390 Linux Development, Boeblingen, Germany
--
IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Wolfgang Wendt
Geschäftsführung: David Faller
Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart, HRB 243294