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selftests: change cpu on-off-test.sh name to be unique
cpu and memory hotplug scripts use the same name. Change cpu on-off-test.sh to cpu-on-off-test.sh. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shuah Khan
269
tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
Executable file
269
tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
Executable file
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#!/bin/bash
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SYSFS=
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prerequisite()
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{
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msg="skip all tests:"
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if [ $UID != 0 ]; then
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echo $msg must be run as root >&2
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exit 0
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fi
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taskset -p 01 $$
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SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
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if [ ! -d "$SYSFS" ]; then
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echo $msg sysfs is not mounted >&2
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exit 0
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fi
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if ! ls $SYSFS/devices/system/cpu/cpu* > /dev/null 2>&1; then
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echo $msg cpu hotplug is not supported >&2
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exit 0
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fi
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echo "CPU online/offline summary:"
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online_cpus=`cat $SYSFS/devices/system/cpu/online`
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online_max=${online_cpus##*-}
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echo -e "\t Cpus in online state: $online_cpus"
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offline_cpus=`cat $SYSFS/devices/system/cpu/offline`
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if [[ "a$offline_cpus" = "a" ]]; then
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offline_cpus=0
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else
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offline_max=${offline_cpus##*-}
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fi
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echo -e "\t Cpus in offline state: $offline_cpus"
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}
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#
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# list all hot-pluggable CPUs
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#
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hotpluggable_cpus()
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{
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local state=${1:-.\*}
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for cpu in $SYSFS/devices/system/cpu/cpu*; do
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if [ -f $cpu/online ] && grep -q $state $cpu/online; then
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echo ${cpu##/*/cpu}
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fi
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done
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}
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hotplaggable_offline_cpus()
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{
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hotpluggable_cpus 0
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}
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hotpluggable_online_cpus()
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{
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hotpluggable_cpus 1
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}
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cpu_is_online()
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{
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grep -q 1 $SYSFS/devices/system/cpu/cpu$1/online
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}
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cpu_is_offline()
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{
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grep -q 0 $SYSFS/devices/system/cpu/cpu$1/online
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}
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online_cpu()
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{
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echo 1 > $SYSFS/devices/system/cpu/cpu$1/online
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}
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offline_cpu()
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{
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echo 0 > $SYSFS/devices/system/cpu/cpu$1/online
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}
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online_cpu_expect_success()
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{
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local cpu=$1
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if ! online_cpu $cpu; then
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echo $FUNCNAME $cpu: unexpected fail >&2
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elif ! cpu_is_online $cpu; then
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echo $FUNCNAME $cpu: unexpected offline >&2
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fi
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}
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online_cpu_expect_fail()
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{
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local cpu=$1
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if online_cpu $cpu 2> /dev/null; then
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echo $FUNCNAME $cpu: unexpected success >&2
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elif ! cpu_is_offline $cpu; then
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echo $FUNCNAME $cpu: unexpected online >&2
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fi
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}
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offline_cpu_expect_success()
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{
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local cpu=$1
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if ! offline_cpu $cpu; then
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echo $FUNCNAME $cpu: unexpected fail >&2
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elif ! cpu_is_offline $cpu; then
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echo $FUNCNAME $cpu: unexpected offline >&2
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fi
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}
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offline_cpu_expect_fail()
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{
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local cpu=$1
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if offline_cpu $cpu 2> /dev/null; then
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echo $FUNCNAME $cpu: unexpected success >&2
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elif ! cpu_is_online $cpu; then
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echo $FUNCNAME $cpu: unexpected offline >&2
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fi
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}
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error=-12
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allcpus=0
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priority=0
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online_cpus=0
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online_max=0
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offline_cpus=0
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offline_max=0
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while getopts e:ahp: opt; do
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case $opt in
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e)
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error=$OPTARG
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;;
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a)
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allcpus=1
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;;
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h)
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echo "Usage $0 [ -a ] [ -e errno ] [ -p notifier-priority ]"
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echo -e "\t default offline one cpu"
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echo -e "\t run with -a option to offline all cpus"
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exit
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;;
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p)
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priority=$OPTARG
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;;
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esac
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done
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if ! [ "$error" -ge -4095 -a "$error" -lt 0 ]; then
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echo "error code must be -4095 <= errno < 0" >&2
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exit 1
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fi
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prerequisite
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#
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# Safe test (default) - offline and online one cpu
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#
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if [ $allcpus -eq 0 ]; then
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echo "Limited scope test: one hotplug cpu"
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echo -e "\t (leaves cpu in the original state):"
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echo -e "\t online to offline to online: cpu $online_max"
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offline_cpu_expect_success $online_max
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online_cpu_expect_success $online_max
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if [[ $offline_cpus -gt 0 ]]; then
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echo -e "\t offline to online to offline: cpu $offline_max"
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online_cpu_expect_success $offline_max
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offline_cpu_expect_success $offline_max
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fi
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exit 0
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else
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echo "Full scope test: all hotplug cpus"
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echo -e "\t online all offline cpus"
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echo -e "\t offline all online cpus"
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echo -e "\t online all offline cpus"
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fi
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#
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# Online all hot-pluggable CPUs
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#
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for cpu in `hotplaggable_offline_cpus`; do
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online_cpu_expect_success $cpu
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done
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#
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# Offline all hot-pluggable CPUs
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#
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for cpu in `hotpluggable_online_cpus`; do
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offline_cpu_expect_success $cpu
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done
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#
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# Online all hot-pluggable CPUs again
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#
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for cpu in `hotplaggable_offline_cpus`; do
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online_cpu_expect_success $cpu
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done
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#
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# Test with cpu notifier error injection
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#
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DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'`
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NOTIFIER_ERR_INJECT_DIR=$DEBUGFS/notifier-error-inject/cpu
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prerequisite_extra()
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{
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msg="skip extra tests:"
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/sbin/modprobe -q -r cpu-notifier-error-inject
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/sbin/modprobe -q cpu-notifier-error-inject priority=$priority
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if [ ! -d "$DEBUGFS" ]; then
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echo $msg debugfs is not mounted >&2
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exit 0
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fi
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if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then
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echo $msg cpu-notifier-error-inject module is not available >&2
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exit 0
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fi
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}
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prerequisite_extra
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#
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# Offline all hot-pluggable CPUs
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#
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echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
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for cpu in `hotpluggable_online_cpus`; do
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offline_cpu_expect_success $cpu
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done
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#
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# Test CPU hot-add error handling (offline => online)
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#
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echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error
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for cpu in `hotplaggable_offline_cpus`; do
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online_cpu_expect_fail $cpu
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done
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#
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# Online all hot-pluggable CPUs
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#
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echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error
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for cpu in `hotplaggable_offline_cpus`; do
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online_cpu_expect_success $cpu
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done
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#
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# Test CPU hot-remove error handling (online => offline)
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#
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echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
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for cpu in `hotpluggable_online_cpus`; do
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offline_cpu_expect_fail $cpu
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done
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echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
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/sbin/modprobe -q -r cpu-notifier-error-inject
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