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rcutorture: Remove RCU dependencies from ver_functions.sh API

Browse source 
The current set of functions in ver_functions.sh have APIs that are
specific to RCU.  This commit therefore makes an RCU-independent function
that outputs version-specific boot arguments.  This has the benefit that
a test-type-independent call in kvm-test-1-rcu.sh can now handle any type
of test, given a test-type-specific set of files in a configs directory.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Paul E. McKenney 2014-02-06 17:50:32 -08:00
parent d2ebf7eea0
commit a5afdeb13c
5 changed files with 58 additions and 39 deletions
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8
tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh
View file

@ -148,12 +148,8 @@ qemu_append="`identify_qemu_append "$QEMU"`"
# Pull in Kconfig-fragment boot parameters
boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
# Generate CPU-hotplug boot parameters
boot_args="`rcutorture_param_onoff "$boot_args" $builddir/.config`"
# Generate rcu_barrier() boot parameter
boot_args="`rcutorture_param_n_barrier_cbs "$boot_args"`"
# Pull in standard rcutorture boot arguments
boot_args="$boot_args rcutorture.stat_interval=15 rcutorture.shutdown_secs=$seconds rcutorture.rcutorture_runnable=1 rcutorture.test_no_idle_hz=1 rcutorture.verbose=1"
# Generate kernel-version-specific boot parameters
boot_args="`per_version_boot_params "$boot_args" $builddir/.config $seconds`"
echo $QEMU $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
if test -n "$RCU_BUILDONLY"

20
tools/testing/selftests/rcutorture/configs/v0.0/ver_functions.sh
View file

@ -20,16 +20,14 @@
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
# rcutorture_param_n_barrier_cbs bootparam-string
# per_version_boot_params bootparam-string config-file seconds
#
# Adds n_barrier_cbs rcutorture module parameter to kernels having it.
rcutorture_param_n_barrier_cbs () {
echo $1
}
# rcutorture_param_onoff bootparam-string config-file
#
# Adds onoff rcutorture module parameters to kernels having it.
rcutorture_param_onoff () {
echo $1
# Adds per-version torture-module parameters to kernels supporting them.
# Which old kernels do not.
per_version_boot_params () {
echo rcutorture.stat_interval=15 \
rcutorture.shutdown_secs=$3 \
rcutorture.rcutorture_runnable=1 \
rcutorture.test_no_idle_hz=1 \
rcutorture.verbose=1
}

25
tools/testing/selftests/rcutorture/configs/v3.3/ver_functions.sh
View file

@ -20,22 +20,25 @@
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
# rcutorture_param_n_barrier_cbs bootparam-string
#
# Adds n_barrier_cbs rcutorture module parameter to kernels having it.
rcutorture_param_n_barrier_cbs () {
echo $1
}
# rcutorture_param_onoff bootparam-string config-file
#
# Adds onoff rcutorture module parameters to kernels having it.
rcutorture_param_onoff () {
if ! bootparam_hotplug_cpu "$1" && configfrag_hotplug_cpu "$2"
then
echo CPU-hotplug kernel, adding rcutorture onoff.
echo $1 rcutorture.onoff_interval=3 rcutorture.onoff_holdoff=30
else
echo $1
echo CPU-hotplug kernel, adding rcutorture onoff. 1>&2
echo rcutorture.onoff_interval=3 rcutorture.onoff_holdoff=30
fi
}
# per_version_boot_params bootparam-string config-file seconds
#
# Adds per-version torture-module parameters to kernels supporting them.
per_version_boot_params () {
echo $1 `rcutorture_param_onoff "$1" "$2"` \
rcutorture.stat_interval=15 \
rcutorture.shutdown_secs=$3 \
rcutorture.rcutorture_runnable=1 \
rcutorture.test_no_idle_hz=1 \
rcutorture.verbose=1
}

23
tools/testing/selftests/rcutorture/configs/v3.5/ver_functions.sh
View file

@ -26,9 +26,9 @@
rcutorture_param_n_barrier_cbs () {
if echo $1 | grep -q "rcutorture\.n_barrier_cbs"
then
echo $1
:
else
echo $1 rcutorture.n_barrier_cbs=4
echo rcutorture.n_barrier_cbs=4
fi
}
@ -38,9 +38,20 @@ rcutorture_param_n_barrier_cbs () {
rcutorture_param_onoff () {
if ! bootparam_hotplug_cpu "$1" && configfrag_hotplug_cpu "$2"
then
echo CPU-hotplug kernel, adding rcutorture onoff.
echo $1 rcutorture.onoff_interval=3 rcutorture.onoff_holdoff=30
else
echo $1
echo CPU-hotplug kernel, adding rcutorture onoff. 1>&2
echo rcutorture.onoff_interval=3 rcutorture.onoff_holdoff=30
fi
}
# per_version_boot_params bootparam-string config-file seconds
#
# Adds per-version torture-module parameters to kernels supporting them.
per_version_boot_params () {
echo $1 `rcutorture_param_onoff "$1" "$2"` \
`rcutorture_param_n_barrier_cbs "$1"` \
rcutorture.stat_interval=15 \
rcutorture.shutdown_secs=$3 \
rcutorture.rcutorture_runnable=1 \
rcutorture.test_no_idle_hz=1 \
rcutorture.verbose=1
}

21
tools/testing/selftests/rcutorture/configs/ver_functions.sh
View file

@ -26,9 +26,9 @@
rcutorture_param_n_barrier_cbs () {
if echo $1 | grep -q "rcutorture\.n_barrier_cbs"
then
echo $1
:
else
echo $1 rcutorture.n_barrier_cbs=4
echo rcutorture.n_barrier_cbs=4
fi
}
@ -39,8 +39,19 @@ rcutorture_param_onoff () {
if ! bootparam_hotplug_cpu "$1" && configfrag_hotplug_cpu "$2"
then
echo CPU-hotplug kernel, adding rcutorture onoff. 1>&2
echo $1 rcutorture.onoff_interval=3 rcutorture.onoff_holdoff=30
else
echo $1
echo rcutorture.onoff_interval=3 rcutorture.onoff_holdoff=30
fi
}
# per_version_boot_params bootparam-string config-file seconds
#
# Adds per-version torture-module parameters to kernels supporting them.
per_version_boot_params () {
echo $1 `rcutorture_param_onoff "$1" "$2"` \
`rcutorture_param_n_barrier_cbs "$1"` \
rcutorture.stat_interval=15 \
rcutorture.shutdown_secs=$3 \
rcutorture.rcutorture_runnable=1 \
rcutorture.test_no_idle_hz=1 \
rcutorture.verbose=1
}