From: Masami Hiramatsu <[email protected]> If "snapshot" special file doesn't exist, that kernel does not support snapshot and snapshot trigger too. In that case snapshot trigger test results to unsupported instead of fail.
Link: http://lkml.kernel.org/r/147928401215.22982.10411665829041109794.stgit@devbox Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt <[email protected]> --- tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc index f84b80d551a2..ed94f0c4e0e4 100644 --- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc +++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc @@ -23,6 +23,11 @@ if [ ! -f events/sched/sched_process_fork/trigger ]; then exit_unsupported fi +if [ ! -f snapshot ]; then + echo "snapshot is not supported" + exit_unsupported +fi + reset_tracer do_reset -- 2.10.2
