From: Guopeng Zhang <[email protected]> Exercise housekeeping rejection for local and remote partition type changes. Check the invalid state, the CPUs returned to the top cpuset and the boot-time isolation state of those CPUs.
Signed-off-by: Guopeng Zhang <[email protected]> --- .../selftests/cgroup/test_cpuset_prs.sh | 93 +++++++++++++++++++ 1 file changed, 93 insertions(+) diff --git a/tools/testing/selftests/cgroup/test_cpuset_prs.sh b/tools/testing/selftests/cgroup/test_cpuset_prs.sh index bc8dbb724d5c..35c19738aaa4 100755 --- a/tools/testing/selftests/cgroup/test_cpuset_prs.sh +++ b/tools/testing/selftests/cgroup/test_cpuset_prs.sh @@ -1260,6 +1260,97 @@ test_owned_cpus_housekeeping() echo "$TEST_NAME test PASSED." } +# +# A local type change rejected by the boot housekeeping constraint must release +# the partition CPUs and preserve their boot-isolated state. +# +test_partition_type_failure() +{ + TEST_NAME="Rejected local partition type change" + get_boot_isolated_cpu "$TEST_NAME" || return 0 + echo "Running $TEST_NAME test ..." + + cd $CGROUP2/test + echo member > cpuset.cpus.partition + echo $BOOT_CPU > cpuset.cpus + [[ $(cat cpuset.cpus.effective) = "$BOOT_CPU" ]] || { + echo "$TEST_NAME test SKIPPED: CPU $BOOT_CPU is unavailable" + echo "" > cpuset.cpus + cd $CGROUP2 + return 0 + } + test_partition isolated + echo root > cpuset.cpus.partition + grep -q '^root invalid (partition config conflicts with housekeeping setup)$' \ + cpuset.cpus.partition || { + echo "Partition type failure did not produce the expected state" + exit 1 + } + [[ $(cat $CGROUP2/cpuset.cpus.effective) = "$CPULIST" ]] || { + echo "Partition type failure did not release CPU $BOOT_CPU" + exit 1 + } + check_isolcpus "." || { + echo "Partition type failure lost boot-isolated CPU $BOOT_CPU" + exit 1 + } + echo member > cpuset.cpus.partition + echo "" > cpuset.cpus + cd $CGROUP2 + echo "$TEST_NAME test PASSED." +} + +# +# Exercise the same rejected type change for a remote partition. +# +test_remote_partition_type_failure() +{ + TEST_NAME="Rejected remote partition type change" + get_boot_isolated_cpu "$TEST_NAME" || return 0 + echo "Running $TEST_NAME test ..." + + cd $CGROUP2/test + echo member > cpuset.cpus.partition + echo +cpuset > cgroup.subtree_control + echo $BOOT_CPU > cpuset.cpus + echo $BOOT_CPU > cpuset.cpus.exclusive + [[ $(cat cpuset.cpus.effective) = "$BOOT_CPU" ]] || { + echo "$TEST_NAME test SKIPPED: CPU $BOOT_CPU is unavailable" + echo "" > cpuset.cpus.exclusive + echo "" > cpuset.cpus + cd $CGROUP2 + return 0 + } + mkdir A1 + cd A1 + echo $BOOT_CPU > cpuset.cpus + echo $BOOT_CPU > cpuset.cpus.exclusive + test_partition isolated + echo root > cpuset.cpus.partition + grep -q '^root invalid (partition config conflicts with housekeeping setup)$' \ + cpuset.cpus.partition || { + echo "Remote type failure did not produce the expected state" + exit 1 + } + [[ $(cat $CGROUP2/cpuset.cpus.effective) = "$CPULIST" ]] || { + echo "Remote type failure did not release CPU $BOOT_CPU" + exit 1 + } + check_isolcpus "." || { + echo "Remote type failure lost boot-isolated CPU $BOOT_CPU" + exit 1 + } + echo member > cpuset.cpus.partition + echo "" > cpuset.cpus.exclusive + echo "" > cpuset.cpus + cd .. + rmdir A1 + echo "" > cpuset.cpus.exclusive + echo "" > cpuset.cpus + cd $CGROUP2 + echo "$TEST_NAME test PASSED." +} + # # Wait for inotify event for the given file and read it # $1: cgroup file to wait for @@ -1333,5 +1424,7 @@ run_remote_state_test REMOTE_TEST_MATRIX test_isolated test_boot_isolated test_owned_cpus_housekeeping +test_partition_type_failure +test_remote_partition_type_failure test_inotify echo "All tests PASSED." -- 2.43.0
