On 04/29/2015 02:18 PM, Jan Stancek wrote:
> Signed-off-by: Jan Stancek <[email protected]>
> ---
> testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug01.sh | 6 +++---
> testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug02.sh | 2 +-
> testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug03.sh | 4 ++--
> testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug04.sh | 4 ++--
> testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug05.sh | 2 +-
> testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug06.sh | 2 +-
> testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug07.sh | 2 +-
> 7 files changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug01.sh
> b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug01.sh
> index 52598a9..8ae1379 100755
> --- a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug01.sh
> +++ b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug01.sh
> @@ -111,7 +111,7 @@ LOOP_COUNT=1
>
> tst_check_cmds perl
>
> -get_cpus_num
> +get_present_cpus_num
> if [ $? -lt 2 ]; then
> tst_brkm TCONF "system doesn't have required CPU hotplug support"
> fi
> @@ -148,7 +148,7 @@ do
> IRQ_START=$(cat /proc/interrupts)
>
> # Attempt to offline all CPUs
> - for cpu in $( get_all_cpus ); do
> + for cpu in $( get_hotplug_cpus ); do
> if [ "$cpu" = "cpu0" ]; then
> continue
> fi
> @@ -163,7 +163,7 @@ do
> done
>
> # Attempt to online all CPUs
> - for cpu in $( get_all_cpus ); do
> + for cpu in $( get_hotplug_cpus ); do
> if [ "$cpu" = "cpu0" ]; then
> continue
> fi
Given that now this loop runs over hotpluggable cpus, it seems there is
no reason to treat cpu0 specially in cpuhotplug0{1, 3, 4}.sh.
Patch 4 in this series has a fix for cpuhotplug04.sh, but other
occurrences are unfixed.
> diff --git a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug02.sh
> b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug02.sh
> index 3b33720..c42cc1b 100755
> --- a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug02.sh
> +++ b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug02.sh
> @@ -54,7 +54,7 @@ done
>
> LOOP_COUNT=1
>
> -get_cpus_num
> +get_present_cpus_num
> if [ $? -lt 2 ]; then
> tst_brkm TCONF "system doesn't have required CPU hotplug support"
> fi
> diff --git a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug03.sh
> b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug03.sh
> index 817f066..5da4854 100755
> --- a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug03.sh
> +++ b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug03.sh
> @@ -63,7 +63,7 @@ done
>
> LOOP_COUNT=1
>
> -get_cpus_num
> +get_present_cpus_num
> if [ $? -lt 2 ]; then
> tst_brkm TCONF "system doesn't have required CPU hotplug support"
> fi
> @@ -86,7 +86,7 @@ until [ $LOOP_COUNT -gt $HOTPLUG03_LOOPS ]; do
> number_of_cpus=0
>
> # Turns on all CPUs
> - for i in $( get_all_cpus ); do
> + for i in $( get_hotplug_cpus ); do
> if [ "$i" = "cpu0" ]; then
> continue
> fi
In general, get_hotplug_cpus should produce only a subset from
get_all_cpus, so number_of_cpus below may be less that the total number
of CPUs in the system.
But below in the code we have:
# Start up a number of processes equal to twice the number of
# CPUs we have. This is to help ensure we've got enough processes
# that at least one will migrate to the new CPU. Store the PIDs
# so we can kill them later.
number_of_cpus=$((number_of_cpus*2))
until [ $number_of_cpus -eq 0 ]; do
cpuhotplug_do_spin_loop > /dev/null 2>&1 &
echo $! >> /var/run/hotplug4_$$.pid
number_of_cpus=$((number_of_cpus-1))
done
It seems that now we need to fork $(( $(get_present_cpus_num) * 2 ))
processes.
> diff --git a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug04.sh
> b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug04.sh
> index ea2723b..3e025da 100755
> --- a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug04.sh
> +++ b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug04.sh
> @@ -62,7 +62,7 @@ until [ $LOOP_COUNT -gt $HOTPLUG04_LOOPS ]; do
> cpustate=1
>
> # Online all the CPUs
> - for i in $(get_all_cpus); do
> + for i in $(get_hotplug_cpus); do
> if [ "$i" != "cpu0" ]; then
> if ! cpu_is_online $i; then
> if ! online_cpu $i; then
> @@ -79,7 +79,7 @@ until [ $LOOP_COUNT -gt $HOTPLUG04_LOOPS ]; do
> done
>
> # Now offline all the CPUs
> - for i in $(get_all_cpus); do
> + for i in $(get_hotplug_cpus); do
> if ! offline_cpu $i; then
> if [ "x$i" != "xcpu0" ]; then
> tst_resm TFAIL "Did not offline first CPU
> (offlined $i instead)"
> diff --git a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug05.sh
> b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug05.sh
> index bb0e896..79f7e90 100755
> --- a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug05.sh
> +++ b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug05.sh
> @@ -54,7 +54,7 @@ LOOP_COUNT=1
>
> tst_check_cmds sar
>
> -get_cpus_num
> +get_present_cpus_num
> if [ $? -lt 2 ]; then
> tst_brkm TCONF "system doesn't have required CPU hotplug support"
> fi
> diff --git a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug06.sh
> b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug06.sh
> index 2e48242..6710fad 100755
> --- a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug06.sh
> +++ b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug06.sh
> @@ -49,7 +49,7 @@ done
>
> LOOP_COUNT=1
>
> -get_cpus_num
> +get_present_cpus_num
> if [ $? -lt 2 ]; then
> tst_brkm TCONF "system doesn't have required CPU hotplug support"
> fi
> diff --git a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug07.sh
> b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug07.sh
> index 723f3de..7edb3a9 100755
> --- a/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug07.sh
> +++ b/testcases/kernel/hotplug/cpu_hotplug/functional/cpuhotplug07.sh
> @@ -55,7 +55,7 @@ done
>
> LOOP_COUNT=1
>
> -get_cpus_num
> +get_present_cpus_num
> if [ $? -lt 2 ]; then
> tst_brkm TCONF "system doesn't have required CPU hotplug support"
> fi
>
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