[LTP] [PATCH 1/3] device-drivers/locking: add wrapper for locktorture kernel module

* [LTP] [PATCH 1/3] device-drivers/locking: add wrapper for locktorture kernel module
@ 2015-02-25  9:13 Alexey Kodanev
  2015-02-25  9:13 ` [LTP] [PATCH 2/3] runtest/kernel_misc: add lock_torture.sh Alexey Kodanev
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Alexey Kodanev @ 2015-02-25  9:13 UTC (permalink / raw)
  To: ltp-list; +Cc: vasily.isaenko

This is a wrapper for locktorture kernel module (added in Linux 3.18).
The test requiers that kernel configured with CONFIG_LOCK_TORTURE_TEST.
It runs locktorture module using particular options and then inspects dmesg
output for module's test results. For more information, please read Linux
Documentation: locking/locktorture.txt

Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
---
 testcases/kernel/device-drivers/Makefile           |    1 +
 testcases/kernel/device-drivers/locking/Makefile   |   22 +++++
 .../kernel/device-drivers/locking/lock_torture.sh  |   93 ++++++++++++++++++++
 3 files changed, 116 insertions(+), 0 deletions(-)
 create mode 100644 testcases/kernel/device-drivers/locking/Makefile
 create mode 100755 testcases/kernel/device-drivers/locking/lock_torture.sh

diff --git a/testcases/kernel/device-drivers/Makefile b/testcases/kernel/device-drivers/Makefile
index a5a1745..551d137 100644
--- a/testcases/kernel/device-drivers/Makefile
+++ b/testcases/kernel/device-drivers/Makefile
@@ -21,6 +21,7 @@ include $(top_srcdir)/include/mk/env_pre.mk
 SUBDIRS		:= acpi \
 		   block \
 		   cpufreq \
+		   locking \
 		   pci \
 		   rcu \
 		   rtc \
diff --git a/testcases/kernel/device-drivers/locking/Makefile b/testcases/kernel/device-drivers/locking/Makefile
new file mode 100644
index 0000000..9aabff3
--- /dev/null
+++ b/testcases/kernel/device-drivers/locking/Makefile
@@ -0,0 +1,22 @@
+# Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+top_srcdir	?= ../../../..
+include $(top_srcdir)/include/mk/testcases.mk
+
+INSTALL_TARGETS		:= lock_torture.sh
+
+include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/kernel/device-drivers/locking/lock_torture.sh b/testcases/kernel/device-drivers/locking/lock_torture.sh
new file mode 100755
index 0000000..e2722dd
--- /dev/null
+++ b/testcases/kernel/device-drivers/locking/lock_torture.sh
@@ -0,0 +1,93 @@
+#!/bin/sh
+# Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+# Author: Alexey Kodanev <alexey.kodanev@oracle.com>
+#
+# This is a wrapper for locktorture kernel module. The test requiers
+# that kernel configured with CONFIG_LOCK_TORTURE_TEST. It runs locktorture
+# module using particular options and then inspects dmesg output for module's
+# test results. For more information, please read Linux Documentation:
+# locking/locktorture.txt
+
+TCID="lock_torture"
+TST_TOTAL=5
+TST_CLEANUP=cleanup
+. test.sh
+
+# default options
+test_time=60
+
+while getopts :ht: opt; do
+	case "$opt" in
+	h)
+		echo "Usage:"
+		echo "h        help"
+		echo "t x      time in seconds for each test-case"
+		exit 0
+	;;
+	t) test_time=$OPTARG ;;
+	*)
+		tst_brkm TBROK "unknown option: $opt"
+	;;
+	esac
+done
+
+cleanup()
+{
+	tst_resm TINFO "cleanup"
+	rmmod locktorture > /dev/null 2>&1
+}
+
+tst_kvercmp 3 18 0 && \
+	tst_brkm TCONF "test must be run with kernel 3.18 or newer"
+
+tst_require_root
+
+# check if module is present
+modprobe locktorture > /dev/null 2>&1 || \
+	tst_brkm TCONF "Test requires locktorture module"
+rmmod locktorture > /dev/null 2>&1
+
+trap cleanup INT
+
+lock_type="spin_lock spin_lock_irq rw_lock mutex_lock rwsem_lock"
+
+est_time=$(echo "scale=2; $test_time * $TST_TOTAL / 60 " | bc)
+tst_resm TINFO "estimate time $est_time min"
+
+for type in $lock_type; do
+
+	tst_resm TINFO "$type: running $test_time sec..."
+
+	modprobe locktorture torture_type=$type \
+	         > /dev/null 2>&1 || tst_brkm TBROK "failed to load module"
+
+	sleep $test_time
+
+	rmmod locktorture > /dev/null 2>&1 || \
+		tst_brkm TBROK "failed to unload module"
+
+	# check module status in dmesg
+	result_str=`dmesg | sed -nE '$s/.*End of test: ([A-Z]+):.*/\1/p'`
+	if [ "$result_str" = "SUCCESS" ]; then
+		tst_resm TPASS "$type: completed"
+	else
+		tst_resm TFAIL "$type: $result_str, see dmesg"
+	fi
+done
+
+tst_exit
-- 
1.7.1


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