From: Feng Zhou zhoufeng.zf@bytedance.com
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 to a map.
Feng Zhou (2): bpf: Add bpf_task_under_cgroup helper selftests/bpf: Add testcase for bpf_task_under_cgroup
include/uapi/linux/bpf.h | 13 +++++ kernel/bpf/verifier.c | 4 +- kernel/trace/bpf_trace.c | 31 ++++++++++++ tools/include/uapi/linux/bpf.h | 13 +++++ .../bpf/prog_tests/task_under_cgroup.c | 49 +++++++++++++++++++ .../bpf/progs/test_task_under_cgroup.c | 31 ++++++++++++ 6 files changed, 140 insertions(+), 1 deletion(-) 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