tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: Kprobe dynamic event - busy event check
   4 # requires: kprobe_events
   5
   6 echo p:myevent $FUNCTION_FORK > kprobe_events
   7 test -d events/kprobes/myevent
   8 echo 1 > events/kprobes/myevent/enable
   9 echo > kprobe_events && exit_fail # this must fail
  10 echo 0 > events/kprobes/myevent/enable
  11 echo > kprobe_events # this must succeed