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selftests/ftrace: Have pid filter test use instance flag

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While running the ftracetests, the pid filter test failed because the
instance "foo" existed, and it was using it to rerun the test under a
instance named foo. The collision caused the test to fail as the mkdir
failed as the name already existed.

As of commit b5b77be812 ("selftests: ftrace: Allow some tests to be run
in a tracing instance") all a selftest needs to do to be tested in an
instance is to set the "instance" flag. There's no reason a selftest needs
to create an instance to run its test in an instance directly.

Remove the open coded testing in an instance for the pid filter test and
have it set the "instance" flag instead.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Steven Rostedt (VMware) 2020-01-30 21:45:27 -05:00 committed by Shuah Khan
parent 7714d469dc
commit a098d9c82a
1 changed files with 1 additions and 7 deletions
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8
tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
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@ -1,6 +1,7 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: ftrace - function pid filters
# flags: instance
# Make sure that function pid matching filter works.
# Also test it on an instance directory
@ -96,13 +97,6 @@ do_test() {
}
do_test
mkdir instances/foo
cd instances/foo
do_test
cd ../../
rmdir instances/foo
do_reset
exit 0