Re: [PATCH bpf-next v7 4/5] selftests/bpf: Test parameterized task BPF iterators.

Yonghong Song <yhs@xxxxxx> · Fri, 26 Aug 2022 14:24:01 -0700

On 8/25/22 5:37 PM, Kui-Feng Lee wrote:
Test iterators of vma, files, and tasks of tasks.

'tasks of tasks' is confusing.
I guess you mean:
  Test iterators of (1). vma, files and tasks of a process,
  (2). vma, files of a task, and (3). a single task.
?

Ensure the API works appropriately to visit all tasks,
tasks in a process, or a particular task.

Signed-off-by: Kui-Feng Lee <kuifeng@xxxxxx>
---
  .../selftests/bpf/prog_tests/bpf_iter.c       | 282 ++++++++++++++++--
  .../selftests/bpf/prog_tests/btf_dump.c       |   2 +-
  .../selftests/bpf/progs/bpf_iter_task.c       |   9 +
  .../selftests/bpf/progs/bpf_iter_task_file.c  |   9 +-
  .../selftests/bpf/progs/bpf_iter_task_vma.c   |   7 +-
  .../selftests/bpf/progs/bpf_iter_vma_offset.c |  37 +++
  6 files changed, 322 insertions(+), 24 deletions(-)
  create mode 100644 tools/testing/selftests/bpf/progs/bpf_iter_vma_offset.c

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