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rcutorture: Add per-Kconfig fragment boot parameters

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Some Kconfig fragments require rcutorture module parameters to
do optimal testing, for example, a configuration for SRCU would
need rcutorture.torture_type=srcu.  This commit therefore adds a
per-Kconfig-fragment boot-parameter capability.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
This commit is contained in:
Paul E. McKenney 2013-09-29 20:22:32 -07:00
parent 4275be83b8
commit 0cc2441447
2 changed files with 14 additions and 0 deletions
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12
tools/testing/selftests/rcutorture/bin/functions.sh
View File

@ -28,6 +28,18 @@ bootparam_hotplug_cpu () {
echo "$1" | grep -q "rcutorture\.onoff_"
}
# configfrag_boot_params bootparam-string config-fragment-file
#
# Adds boot parameters from the .boot file, if any.
configfrag_boot_params () {
if test -r "$2.boot"
then
echo $1 `grep -v '^#' "$2.boot" | tr '\012' ' '`
else
echo $1
fi
}
# configfrag_hotplug_cpu config-fragment-file
#
# Returns 1 if the config fragment specifies hotplug CPU.

2
tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh
View File

@ -137,6 +137,8 @@ fi
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 Kconfig-fragment boot parameters
boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
echo $QEMU -name rcu-test -serial file:$builddir/console.log $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append \"noapic selinux=0 console=ttyS0 initcall_debug debug rcutorture.stat_interval=15 rcutorture.shutdown_secs=$seconds rcutorture.rcutorture_runnable=1 $boot_args\" > $resdir/qemu-cmd
$QEMU -name rcu-test -serial file:$builddir/console.log $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append "noapic selinux=0 console=ttyS0 initcall_debug debug rcutorture.stat_interval=15 rcutorture.shutdown_secs=$seconds rcutorture.rcutorture_runnable=1 $boot_args" &