This comes useful when using selftests from mainline on older
kernels/setups that still rely on cgroup v1 while maintains single
variant of selftests.
The core tests that rely on v2 specific features are skipped, the
remaining ones are adjusted to work with a v1 hierarchy.
The expected output on v1 system:
ok 1 # SKIP test_cgcore_internal_process_constraint
ok 2 # SKIP test_cgcore_top_down_constraint_enable
ok 3 # SKIP test_cgcore_top_down_constraint_disable
ok 4 # SKIP test_cgcore_no_internal_process_constraint_on_threads
ok 5 # SKIP test_cgcore_parent_becomes_threaded
ok 6 # SKIP test_cgcore_invalid_domain
ok 7 # SKIP test_cgcore_populated
ok 8 test_cgcore_proc_migration
ok 9 test_cgcore_thread_migration
ok 10 test_cgcore_destroy
ok 11 test_cgcore_lesser_euid_open
ok 12 # SKIP test_cgcore_lesser_ns_open
Michal Koutný (4):
selftests: cgroup_util: Add helpers for testing named v1 hierarchies
selftests: cgroup: Add support for named v1 hierarchies in test_core
selftests: cgroup: Optionally set up v1 environment
selftests: cgroup: Fix compilation on pre-cgroupns kernels
.../selftests/cgroup/lib/cgroup_util.c | 4 +-
.../cgroup/lib/include/cgroup_util.h | 5 ++
tools/testing/selftests/cgroup/test_core.c | 84 ++++++++++++++++---
3 files changed, 82 insertions(+), 11 deletions(-)
base-commit: 9afe652958c3ee88f24df1e4a97f298afce89407
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2.49.0