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linux/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc
Masami Hiramatsu e527c47081 selftests/ftrace: Remove unneeded per-test init/cleanup ftrace
Since ftracetest framework calls initialize_ftrace() right before
each test and after all tests, we don't need to init/cleanup
ftrace for each test case.
Just remove such unneeded init/cleanup code because it can
increase logfile size.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
2018-10-24 14:49:35 -06:00

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: Kprobe dynamic event - busy event check
[ -f kprobe_events ] || exit_unsupported
echo p:myevent _do_fork > kprobe_events
test -d events/kprobes/myevent
echo 1 > events/kprobes/myevent/enable
echo > kprobe_events && exit_fail # this must fail
echo 0 > events/kprobes/myevent/enable
echo > kprobe_events # this must succeed