Install a cleanup function using the trap command for signals EXIT,
SIGINT, SIGQUIT and SIGABRT. The cleanup function will perform:
1. Online the CPUs that were made offline during the test.
2. Removing the cgroups created.
3. Restoring the original /sys/kernel/debug/sched/verbose value,
currently it's left turned on, irrespective of the original
configuration value.
the test performs steps 1 and 2, on the successful runs, but not during
all of the failed runs. With the cleanup(), the system will perform all
three steps during failed/passed test runs.
Signed-off-by: Kamalesh Babulal <kamalesh.babulal@oracle.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
[[ $(id -u) -eq 0 ]] || skip_test "Test must be run as root!"
# Set sched verbose flag, if available
-[[ -d /sys/kernel/debug/sched ]] && echo Y > /sys/kernel/debug/sched/verbose
+if [[ -d /sys/kernel/debug/sched ]]
+then
+ # Used to restore the original setting during cleanup
+ SCHED_DEBUG=$(cat /sys/kernel/debug/sched/verbose)
+ echo Y > /sys/kernel/debug/sched/verbose
+fi
# Get wait_inotify location
WAIT_INOTIFY=$(cd $(dirname $0); pwd)/wait_inotify
[[ -d test ]] || mkdir test
cd test
+cleanup()
+{
+ online_cpus
+ rmdir A1/A2/A3 A1/A2 A1 B1 > /dev/null 2>&1
+ cd ..
+ rmdir test > /dev/null 2>&1
+ echo "$SCHED_DEBUG" > /sys/kernel/debug/sched/verbose
+}
+
# Pause in ms
pause()
{
fi
}
+trap cleanup 0 2 3 6
run_state_test TEST_MATRIX
test_isolated
test_inotify