Messages in this thread | | | Date | Fri, 18 May 2018 10:00:01 -0700 | From | Joel Fernandes <> | Subject | Re: [PATCH 2/2] kselftests: ftrace: Add tests for the preemptoff and irqsoff tracers |
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On Sat, May 19, 2018 at 12:32:41AM +0900, Masami Hiramatsu wrote: > Hi Joel, > > 55ty jmnOn Thu, 17 May 2018 18:54:21 -0700 > "Joel Fernandes (Google)" <joel@joelfernandes.org> wrote: > > > Here we add unit tests for the preemptoff and irqsoff tracer by using a > > kernel module introduced previously to trigger atomic sections in the > > kernel. > > > > Cc: Steven Rostedt <rostedt@goodmis.org> > > Cc: Peter Zilstra <peterz@infradead.org> > > Cc: Ingo Molnar <mingo@redhat.com> > > Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> > > Cc: Tom Zanussi <tom.zanussi@linux.intel.com> > > Cc: Namhyung Kim <namhyung@kernel.org> > > Cc: Thomas Glexiner <tglx@linutronix.de> > > Cc: Boqun Feng <boqun.feng@gmail.com> > > Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> > > Cc: Masami Hiramatsu <mhiramat@kernel.org> > > Cc: Todd Kjos <tkjos@google.com> > > Cc: Erick Reyes <erickreyes@google.com> > > Cc: Julia Cartwright <julia@ni.com> > > Cc: kernel-team@android.com > > Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> > > --- > > tools/testing/selftests/ftrace/config | 3 + > > .../test.d/preemptirq/irqsoff_tracer.tc | 74 +++++++++++++++++++ > > 2 files changed, 77 insertions(+) > > create mode 100644 tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc > > > > diff --git a/tools/testing/selftests/ftrace/config b/tools/testing/selftests/ftrace/config > > index b01924c71c09..29588b328345 100644 > > --- a/tools/testing/selftests/ftrace/config > > +++ b/tools/testing/selftests/ftrace/config > > @@ -4,3 +4,6 @@ CONFIG_FUNCTION_PROFILER=y > > CONFIG_TRACER_SNAPSHOT=y > > CONFIG_STACK_TRACER=y > > CONFIG_HIST_TRIGGERS=y > > +CONFIG_PREEMPT_TRACER=y > > +CONFIG_IRQSOFF_TRACER=y > > +CONFIG_TEST_ATOMIC_SECTIONS=m > > diff --git a/tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc b/tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc > > new file mode 100644 > > index 000000000000..b76d781c5645 > > --- /dev/null > > +++ b/tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc > > @@ -0,0 +1,74 @@ > > +#!/bin/sh > > +# SPDX-License-Identifier: GPL-2.0 > > +# description: test for the preemptirqsoff tracer > > + > > +MOD=test_atomic_sections > > + > > +fail() { > > + reset_tracer > > + rmmod $MOD || true > > + exit_fail > > +} > > + > > +unsup() { #msg > > + reset_tracer > > + rmmod $MOD || true > > + echo $1 > > + exit_unsupported > > +} > > + > > +modprobe $MOD || unsup "$MOD module not available" > > +rmmod $MOD > > + > > +grep "preemptoff" available_tracers || unsup "preemptoff tracer not enabled" > > +grep "irqsoff" available_tracers || unsup "irqsoff tracer not enabled" > > Could you pass "-q" for all grep command in this script if it just for checking the pattern exists?
Fixed, thanks!
Will send out update rolled into the series its testing.
- Joel
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