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rcutorture: Add per-Kconfig fragment boot parameters
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>
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2 changed files with 14 additions and 0 deletions
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@ -28,6 +28,18 @@ bootparam_hotplug_cpu () {
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echo "$1" | grep -q "rcutorture\.onoff_"
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}
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# configfrag_boot_params bootparam-string config-fragment-file
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#
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# Adds boot parameters from the .boot file, if any.
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configfrag_boot_params () {
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if test -r "$2.boot"
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then
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echo $1 `grep -v '^#' "$2.boot" | tr '\012' ' '`
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else
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echo $1
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fi
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}
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# configfrag_hotplug_cpu config-fragment-file
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#
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# Returns 1 if the config fragment specifies hotplug CPU.
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@ -137,6 +137,8 @@ fi
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boot_args="`rcutorture_param_onoff "$boot_args" $builddir/.config`"
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# Generate rcu_barrier() boot parameter
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boot_args="`rcutorture_param_n_barrier_cbs "$boot_args"`"
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# Pull in Kconfig-fragment boot parameters
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boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
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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\" > $resdir/qemu-cmd
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$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" &
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