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2018-10-24selftests/ftrace: Add ringbuffer size changing testcaseMasami Hiramatsu1-0/+22
Add a testcase for changing ringbuffer size. This tests not only ringbuffer size but also tests the imbalance per-cpu buffer size change too. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>