From: Feng Zhou <[email protected]>
Trace sched related functions, such as enqueue_task_fair, it is necessary to
specify a task instead of the current task which within a given cgroup.
Feng Zhou (2):
bpf: Add bpf_task_under_cgroup() kfunc
selftests/bpf: Add testcase for bpf_task_under_cgroup
Changelog:
v5->v6: Addressed comments from Yonghong Song
- Some code format modifications.
- Add ack-by
Details in here:
https://lore.kernel.org/all/[email protected]/
v4->v5: Addressed comments from Yonghong Song
- Some code format modifications.
Details in here:
https://lore.kernel.org/all/[email protected]/
v3->v4: Addressed comments from Yonghong Song
- Modify test cases and test other tasks, not the current task.
Details in here:
https://lore.kernel.org/all/[email protected]/
v2->v3: Addressed comments from Alexei Starovoitov
- Modify the comment information of the function.
- Narrow down the testcase's hook point
Details in here:
https://lore.kernel.org/all/[email protected]/
v1->v2: Addressed comments from Alexei Starovoitov
- Add kfunc instead.
Details in here:
https://lore.kernel.org/all/[email protected]/
kernel/bpf/helpers.c | 20 +++++++
tools/testing/selftests/bpf/DENYLIST.s390x | 1 +
.../bpf/prog_tests/task_under_cgroup.c | 53 +++++++++++++++++++
.../bpf/progs/test_task_under_cgroup.c | 51 ++++++++++++++++++
4 files changed, 125 insertions(+)
create mode 100644 tools/testing/selftests/bpf/prog_tests/task_under_cgroup.c
create mode 100644 tools/testing/selftests/bpf/progs/test_task_under_cgroup.c
--
2.20.1