From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xiao Yang Date: Wed, 10 Jul 2019 22:35:10 +0800 Subject: [LTP] [PATCH v3] rcu/rcu_torture.sh: Rewrite test Message-ID: <1562769310-4918-1-git-send-email-ice_yangxiao@163.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ltp@lists.linux.it 1) Cleanup and convert to new API 2) Update valid rcutorture types(rcu, srcu, srcud, tasks) Note: Exclude valid busted* types(busted, busted_srcud) that check the test itself and expect failures, suggested by: https://www.spinics.net/lists/kernel/msg3045252.html Signed-off-by: Xiao Yang --- testcases/kernel/device-drivers/rcu/rcu_torture.sh | 142 +++++++++------------ 1 file changed, 63 insertions(+), 79 deletions(-) diff --git a/testcases/kernel/device-drivers/rcu/rcu_torture.sh b/testcases/kernel/device-drivers/rcu/rcu_torture.sh index c3739f9..9df4390 100755 --- a/testcases/kernel/device-drivers/rcu/rcu_torture.sh +++ b/testcases/kernel/device-drivers/rcu/rcu_torture.sh @@ -1,20 +1,7 @@ #!/bin/sh +# SPDX-License-Identifier: GPL-2.0-or-later # Copyright (c) 2014-2015 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 -# +# Copyright (C) 2019 Xiao Yang # Author: Alexey Kodanev # # One of the possible ways to test RCU is to use rcutorture kernel module. @@ -23,89 +10,86 @@ # dmesg output for module's test results. # For more information, please read Linux Documentation: RCU/torture.txt -TCID="rcu_torture" -TST_TOTAL=14 -TST_CLEANUP=cleanup +TST_CNT=4 +TST_SETUP=rcutorture_setup +TST_TESTFUNC=do_test +TST_NEEDS_ROOT=1 +TST_NEEDS_CMDS="modprobe dmesg sed tail" +TST_OPTS="t:w:" +TST_USAGE=rcutorture_usage +TST_PARSE_ARGS=rcutorture_parse_args -. test.sh +. tst_test.sh # default options -test_time=60 +test_time=30 num_writers=5 -while getopts :ht:w: opt; do - case "$opt" in - h) - echo "Usage:" - echo "h help" - echo "t x time in seconds for each test-case" - echo "w x number of writers" - exit 0 - ;; - t) test_time=$OPTARG ;; - w) num_writers=$OPTARG ;; - *) - tst_brkm TBROK "unknown option: $opt" - ;; - esac -done - -cleanup() +rcutorture_usage() { - tst_resm TINFO "cleanup" - rmmod rcutorture > /dev/null 2>&1 + echo "Usage:" + echo "-t x time in seconds for each test-case" + echo "-w x number of writers" } -tst_require_root - -# check if module is present -modprobe rcutorture > /dev/null 2>&1 || \ - tst_brkm TCONF "Test requires rcutorture module" -rmmod rcutorture > /dev/null 2>&1 - -trap cleanup INT - -rcu_type="rcu rcu_bh srcu sched" +rcutorture_parse_args() +{ + case $1 in + t) test_time=$2 ;; + w) num_writers=$2 ;; + esac +} -if tst_kvcmp -lt "3.12"; then - rcu_type="$rcu_type rcu_sync rcu_expedited rcu_bh_sync rcu_bh_expedited \ - srcu_sync srcu_expedited sched_sync sched_expedited" +rcutorture_setup() +{ + local module=1 - if tst_kvcmp -lt "3.11"; then - rcu_type="$rcu_type srcu_raw srcu_raw_sync" - fi -fi + # check if rcutorture is built as a kernel module by inserting + # and then removing it + modprobe rcutorture >/dev/null 2>&1 || module=0 + modprobe -r rcutorture >/dev/null 2>&1 || module=0 -TST_TOTAL=$(echo "$rcu_type" | wc -w) + [ $module -eq 0 ] && \ + tst_brk TCONF "rcutorture is built-in, non-existent or in use" +} -est_time=`echo "scale=2; $test_time * $TST_TOTAL / 60 " | bc` -tst_resm TINFO "estimate time $est_time min" +rcutorture_test() +{ + local rcu_type=$1 -for type in $rcu_type; do + tst_res TINFO "${rcu_type}-torture: running ${test_time} sec..." - tst_resm TINFO "$type: running $test_time sec..." + modprobe rcutorture nfakewriters=${num_writers} \ + torture_type=${rcu_type} >/dev/null 2>&1 + if [ $? -ne 0 ]; then + dmesg | grep -q "invalid torture type: \"${rcu_type}\"" && \ + tst_brk TCONF "invalid ${rcu_type} type" - modprobe rcutorture nfakewriters=$num_writers \ - stat_interval=60 test_no_idle_hz=1 shuffle_interval=3 \ - stutter=5 irqreader=1 fqs_duration=0 fqs_holdoff=0 \ - fqs_stutter=3 test_boost=1 test_boost_interval=7 \ - test_boost_duration=4 shutdown_secs=0 \ - stall_cpu=0 stall_cpu_holdoff=10 n_barrier_cbs=0 \ - onoff_interval=0 onoff_holdoff=0 torture_type=$type \ - > /dev/null 2>&1 || tst_brkm TBROK "failed to load module" + tst_brk TBROK "failed to load module" + fi - sleep $test_time + sleep ${test_time} - rmmod rcutorture > /dev/null 2>&1 || \ - tst_brkm TBROK "failed to unload module" + modprobe -r rcutorture >/dev/null 2>&1 || \ + tst_brk TBROK "failed to unload module" # check module status in dmesg - result_str=`dmesg | sed -nE '$s/.*End of test: ([A-Z]+):.*/\1/p'` - if [ "$result_str" = "SUCCESS" ]; then - tst_resm TPASS "$type: completed" + local res=$(dmesg | sed -nE "s/.* ${rcu_type}-torture:.* End of test: (.*): .*/\1/p" | tail -n1) + if [ "$res" = "SUCCESS" ]; then + tst_res TPASS "${rcu_type}-torture: $res" else - tst_resm TFAIL "$type: $result_str, see dmesg" + tst_res TFAIL "${rcu_type}-torture: $res, see dmesg" fi -done +} + +do_test() +{ + case $1 in + 1) rcutorture_test rcu;; + 2) rcutorture_test srcu;; + 3) rcutorture_test srcud;; + 4) rcutorture_test tasks;; + esac +} -tst_exit +tst_run -- 1.8.3.1