Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RCU updates from Ingo Molnar:
 "Main changes:

   - Torture-test changes, including refactoring of rcutorture and
     introduction of a vestigial locktorture.

   - Real-time latency fixes.

   - Documentation updates.

   - Miscellaneous fixes"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits)
  rcu: Provide grace-period piggybacking API
  rcu: Ensure kernel/rcu/rcu.h can be sourced/used stand-alone
  rcu: Fix sparse warning for rcu_expedited from kernel/ksysfs.c
  notifier: Substitute rcu_access_pointer() for rcu_dereference_raw()
  Documentation/memory-barriers.txt: Clarify release/acquire ordering
  rcutorture: Save kvm.sh output to log
  rcutorture: Add a lock_busted to test the test
  rcutorture: Place kvm-test-1-run.sh output into res directory
  rcutorture: Rename TREE_RCU-Kconfig.txt
  locktorture: Add kvm-recheck.sh plug-in for locktorture
  rcutorture: Gracefully handle NULL cleanup hooks
  locktorture: Add vestigial locktorture configuration
  rcutorture: Introduce "rcu" directory level underneath configs
  rcutorture: Rename kvm-test-1-rcu.sh
  rcutorture: Remove RCU dependencies from ver_functions.sh API
  rcutorture: Create CFcommon file for common Kconfig parameters
  rcutorture: Create config files for scripted test-the-test testing
  rcutorture: Add an rcu_busted to test the test
  locktorture: Add a lock-torture kernel module
  rcutorture: Abstract kvm-recheck.sh
  ...

108 files changed, 516 insertions, 115 deletions

diff --git a/tools/testing/selftests/rcutorture/bin/functions.sh b/tools/testing/selftests/rcutorture/bin/functions.sh
index 587561d7c035..9b17e810ddc3 100644
--- a/tools/testing/selftests/rcutorture/bin/functions.sh
+++ b/tools/testing/selftests/rcutorture/bin/functions.sh
@@ -96,6 +96,7 @@ identify_qemu () {
                 echo qemu-system-ppc64
         else
                 echo Cannot figure out what qemu command to use! 1>&2
+                echo file $1 output: $u
                 # Usually this will be one of /usr/bin/qemu-system-*
                 # Use RCU_QEMU_CMD environment variable or appropriate
                 # argument to top-level script.
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh
new file mode 100755
index 000000000000..829186e19eb1
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Analyze a given results directory for locktorture progress.
+#
+# Usage: sh kvm-recheck-lock.sh resdir
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, you can access it online at
+# http://www.gnu.org/licenses/gpl-2.0.html.
+#
+# Copyright (C) IBM Corporation, 2014
+#
+# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+
+i="$1"
+if test -d $i
+then
+        :
+else
+        echo Unreadable results directory: $i
+        exit 1
+fi
+
+configfile=`echo $i | sed -e 's/^.*\///'`
+ncs=`grep "Writes:  Total:" $i/console.log 2> /dev/null | tail -1 | sed -e 's/^.* Total: //' -e 's/ .*$//'`
+if test -z "$ncs"
+then
+        echo $configfile
+else
+        title="$configfile ------- $ncs acquisitions/releases"
+        dur=`sed -e 's/^.* locktorture.shutdown_secs=//' -e 's/ .*$//' < $i/qemu-cmd 2> /dev/null`
+        if test -z "$dur"
+        then
+                :
+        else
+                ncsps=`awk -v ncs=$ncs -v dur=$dur '
+                        BEGIN { print ncs / dur }' < /dev/null`
+                title="$title ($ncsps per second)"
+        fi
+        echo $title
+fi
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
new file mode 100755
index 000000000000..d75b1dc5ae53
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Analyze a given results directory for rcutorture progress.
+#
+# Usage: sh kvm-recheck-rcu.sh resdir
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, you can access it online at
+# http://www.gnu.org/licenses/gpl-2.0.html.
+#
+# Copyright (C) IBM Corporation, 2014
+#
+# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+
+i="$1"
+if test -d $i
+then
+        :
+else
+        echo Unreadable results directory: $i
+        exit 1
+fi
+
+configfile=`echo $i | sed -e 's/^.*\///'`
+ngps=`grep ver: $i/console.log 2> /dev/null | tail -1 | sed -e 's/^.* ver: //' -e 's/ .*$//'`
+if test -z "$ngps"
+then
+        echo $configfile
+else
+        title="$configfile ------- $ngps grace periods"
+        dur=`sed -e 's/^.* rcutorture.shutdown_secs=//' -e 's/ .*$//' < $i/qemu-cmd 2> /dev/null`
+        if test -z "$dur"
+        then
+                :
+        else
+                ngpsps=`awk -v ngps=$ngps -v dur=$dur '
+                        BEGIN { print ngps / dur }' < /dev/null`
+                title="$title ($ngpsps per second)"
+        fi
+        echo $title
+fi
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
index baef09f3469b..a44daaa259a9 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Given the results directories for previous KVM runs of rcutorture,
+# Given the results directories for previous KVM-based torture runs,
 # check the build and console output for errors.  Given a directory
 # containing results directories, this recursively checks them all.
 #
@@ -27,11 +27,18 @@
 PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH
 for rd in "$@"
 do
+        firsttime=1
         dirs=`find $rd -name Make.defconfig.out -print | sort | sed -e 's,/[^/]*$,,' | sort -u`
         for i in $dirs
         do
-                configfile=`echo $i | sed -e 's/^.*\///'`
-                echo $configfile
+                if test -n "$firsttime"
+                then
+                        firsttime=""
+                        resdir=`echo $i | sed -e 's,/$,,' -e 's,/[^/]*$,,'`
+                        head -1 $resdir/log
+                fi
+                TORTURE_SUITE="`cat $i/../TORTURE_SUITE`"
+                kvm-recheck-${TORTURE_SUITE}.sh $i
                 configcheck.sh $i/.config $i/ConfigFragment
                 parse-build.sh $i/Make.out $configfile
                 parse-rcutorture.sh $i/console.log $configfile
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index 151b23788935..94b28bb37d36 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -6,15 +6,15 @@
 # Execute this in the source tree.  Do not run it as a background task
 # because qemu does not seem to like that much.
 #
-# Usage: sh kvm-test-1-rcu.sh config builddir resdir minutes qemu-args bootargs
+# Usage: sh kvm-test-1-run.sh config builddir resdir minutes qemu-args boot_args
 #
-# qemu-args defaults to "" -- you will want "-nographic" if running headless.
-# bootargs defaults to  "root=/dev/sda noapic selinux=0 console=ttyS0"
-#                       "initcall_debug debug rcutorture.stat_interval=15"
-#                       "rcutorture.shutdown_secs=$((minutes * 60))"
-#                       "rcutorture.rcutorture_runnable=1"
+# qemu-args defaults to "-nographic", along with arguments specifying the
+#                       number of CPUs and other options generated from
+#                       the underlying CPU architecture.
+# boot_args defaults to value returned by the per_version_boot_params
+#                       shell function.
 #
-# Anything you specify for either qemu-args or bootargs is appended to
+# Anything you specify for either qemu-args or boot_args is appended to
 # the default values.  The "-smp" value is deduced from the contents of
 # the config fragment.
 #
@@ -40,32 +40,34 @@
 
 grace=120
 
-T=/tmp/kvm-test-1-rcu.sh.$$
+T=/tmp/kvm-test-1-run.sh.$$
 trap 'rm -rf $T' 0
 
 . $KVM/bin/functions.sh
 . $KVPATH/ver_functions.sh
 
 config_template=${1}
+config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'`
 title=`echo $config_template | sed -e 's/^.*\///'`
 builddir=${2}
 if test -z "$builddir" -o ! -d "$builddir" -o ! -w "$builddir"
 then
-        echo "kvm-test-1-rcu.sh :$builddir: Not a writable directory, cannot build into it"
+        echo "kvm-test-1-run.sh :$builddir: Not a writable directory, cannot build into it"
         exit 1
 fi
 resdir=${3}
 if test -z "$resdir" -o ! -d "$resdir" -o ! -w "$resdir"
 then
-        echo "kvm-test-1-rcu.sh :$resdir: Not a writable directory, cannot build into it"
+        echo "kvm-test-1-run.sh :$resdir: Not a writable directory, cannot store results into it"
         exit 1
 fi
 cp $config_template $resdir/ConfigFragment
 echo ' ---' `date`: Starting build
 echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
-cat << '___EOF___' >> $T
-CONFIG_RCU_TORTURE_TEST=y
-___EOF___
+if test -r "$config_dir/CFcommon"
+then
+        cat < $config_dir/CFcommon >> $T
+fi
 # Optimizations below this point
 # CONFIG_USB=n
 # CONFIG_SECURITY=n
@@ -96,11 +98,23 @@ then
         cp $builddir/.config $resdir
         cp $builddir/arch/x86/boot/bzImage $resdir
         parse-build.sh $resdir/Make.out $title
+        if test -f $builddir.wait
+        then
+                mv $builddir.wait $builddir.ready
+        fi
 else
         cp $builddir/Make*.out $resdir
         echo Build failed, not running KVM, see $resdir.
+        if test -f $builddir.wait
+        then
+                mv $builddir.wait $builddir.ready
+        fi
         exit 1
 fi
+while test -f $builddir.ready
+do
+        sleep 1
+done
 minutes=$4
 seconds=$(($minutes * 60))
 qemu_args=$5
@@ -111,9 +125,10 @@ kstarttime=`awk 'BEGIN { print systime() }' < /dev/null`
 echo ' ---' `date`: Starting kernel
 
 # Determine the appropriate flavor of qemu command.
-QEMU="`identify_qemu $builddir/vmlinux.o`"
+QEMU="`identify_qemu $builddir/vmlinux`"
 
 # Generate -smp qemu argument.
+qemu_args="-nographic $qemu_args"
 cpu_count=`configNR_CPUS.sh $config_template`
 vcpus=`identify_qemu_vcpus`
 if test $cpu_count -gt $vcpus
@@ -133,12 +148,8 @@ qemu_append="`identify_qemu_append "$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"
+# 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"
@@ -188,5 +199,5 @@ then
 fi
 
 cp $builddir/console.log $resdir
-parse-rcutorture.sh $resdir/console.log $title
+parse-${TORTURE_SUITE}torture.sh $resdir/console.log $title
 parse-console.sh $resdir/console.log $title
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 1b7923bf6a70..5a78cbf55f06 100644
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -30,14 +30,21 @@
 scriptname=$0
 args="$*"
 
+T=/tmp/kvm.sh.$$
+trap 'rm -rf $T' 0
+mkdir $T
+
 dur=30
+dryrun=""
 KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
 PATH=${KVM}/bin:$PATH; export PATH
 builddir="${KVM}/b1"
 RCU_INITRD="$KVM/initrd"; export RCU_INITRD
 RCU_KMAKE_ARG=""; export RCU_KMAKE_ARG
+TORTURE_SUITE=rcu
 resdir=""
 configs=""
+cpus=0
 ds=`date +%Y.%m.%d-%H:%M:%S`
 kversion=""
 
@@ -49,7 +56,9 @@ usage () {
         echo "       --builddir absolute-pathname"
         echo "       --buildonly"
         echo "       --configs \"config-file list\""
+        echo "       --cpus N"
         echo "       --datestamp string"
+        echo "       --dryrun sched|script"
         echo "       --duration minutes"
         echo "       --interactive"
         echo "       --kmake-arg kernel-make-arguments"
@@ -58,8 +67,9 @@ usage () {
         echo "       --no-initrd"
         echo "       --qemu-args qemu-system-..."
         echo "       --qemu-cmd qemu-system-..."
-        echo "       --results absolute-pathname"
         echo "       --relbuilddir relative-pathname"
+        echo "       --results absolute-pathname"
+        echo "       --torture rcu"
         exit 1
 }
 
@@ -85,11 +95,21 @@ do
                 configs="$2"
                 shift
                 ;;
+        --cpus)
+                checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
+                cpus=$2
+                shift
+                ;;
         --datestamp)
                 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
                 ds=$2
                 shift
                 ;;
+        --dryrun)
+                checkarg --dryrun "sched|script" $# "$2" 'sched\|script' '^--'
+                dryrun=$2
+                shift
+                ;;
         --duration)
                 checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' '^error'
                 dur=$2
@@ -138,6 +158,11 @@ do
                 resdir=$2
                 shift
                 ;;
+        --torture)
+                checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\)$' '^--'
+                TORTURE_SUITE=$2
+                shift
+                ;;
         *)
                 echo Unknown argument $1
                 usage
@@ -146,7 +171,7 @@ do
         shift
 done
 
-CONFIGFRAG=${KVM}/configs; export CONFIGFRAG
+CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG
 KVPATH=${CONFIGFRAG}/$kversion; export KVPATH
 
 if test -z "$configs"
@@ -157,54 +182,231 @@ fi
 if test -z "$resdir"
 then
         resdir=$KVM/res
-        if ! test -e $resdir
-        then
-                mkdir $resdir || :
-        fi
-else
+fi
+
+if test "$dryrun" = ""
+then
         if ! test -e $resdir
         then
                 mkdir -p "$resdir" || :
         fi
-fi
-mkdir $resdir/$ds
-touch $resdir/$ds/log
-echo $scriptname $args >> $resdir/$ds/log
+        mkdir $resdir/$ds
 
-pwd > $resdir/$ds/testid.txt
-if test -d .git
-then
-        git status >> $resdir/$ds/testid.txt
-        git rev-parse HEAD >> $resdir/$ds/testid.txt
-fi
-builddir=$KVM/b1
-if ! test -e $builddir
-then
-        mkdir $builddir || :
+        # Be noisy only if running the script.
+        echo Results directory: $resdir/$ds
+        echo $scriptname $args
+
+        touch $resdir/$ds/log
+        echo $scriptname $args >> $resdir/$ds/log
+        echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE
+
+        pwd > $resdir/$ds/testid.txt
+        if test -d .git
+        then
+                git status >> $resdir/$ds/testid.txt
+                git rev-parse HEAD >> $resdir/$ds/testid.txt
+        fi
 fi
 
+# Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
+touch $T/cfgcpu
 for CF in $configs
 do
-        # Running TREE01 multiple times creates TREE01, TREE01.2, TREE01.3, ...
-        rd=$resdir/$ds/$CF
-        if test -d "${rd}"
+        if test -f "$CONFIGFRAG/$kversion/$CF"
         then
-                n="`ls -d "${rd}"* | grep '\.[0-9]\+$' |
-                        sed -e 's/^.*\.\([0-9]\+\)/\1/' |
-                        sort -k1n | tail -1`"
-                if test -z "$n"
-                then
-                        rd="${rd}.2"
-                else
-                        n="`expr $n + 1`"
-                        rd="${rd}.${n}"
-                fi
+                echo $CF `configNR_CPUS.sh $CONFIGFRAG/$kversion/$CF` >> $T/cfgcpu
+        else
+                echo "The --configs file $CF does not exist, terminating."
+                exit 1
         fi
-        mkdir "${rd}"
-        echo Results directory: $rd
-        kvm-test-1-rcu.sh $CONFIGFRAG/$kversion/$CF $builddir $rd $dur "-nographic $RCU_QEMU_ARG" "rcutorture.test_no_idle_hz=1 rcutorture.verbose=1 $RCU_BOOTARGS"
 done
+sort -k2nr $T/cfgcpu > $T/cfgcpu.sort
+
+# Use a greedy bin-packing algorithm, sorting the list accordingly.
+awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
+BEGIN {
+        njobs = 0;
+}
+
+{
+        # Read file of tests and corresponding required numbers of CPUs.
+        cf[njobs] = $1;
+        cpus[njobs] = $2;
+        njobs++;
+}
+
+END {
+        alldone = 0;
+        batch = 0;
+        nc = -1;
+
+        # Each pass through the following loop creates on test batch
+        # that can be executed concurrently given ncpus.  Note that a
+        # given test that requires more than the available CPUs will run in
+        # their own batch.  Such tests just have to make do with what
+        # is available.
+        while (nc != ncpus) {
+                batch++;
+                nc = ncpus;
+
+                # Each pass through the following loop considers one
+                # test for inclusion in the current batch.
+                for (i = 0; i < njobs; i++) {
+                        if (done[i])
+                                continue; # Already part of a batch.
+                        if (nc >= cpus[i] || nc == ncpus) {
+
+                                # This test fits into the current batch.
+                                done[i] = batch;
+                                nc -= cpus[i];
+                                if (nc <= 0)
+                                        break; # Too-big test in its own batch.
+                        }
+                }
+        }
+
+        # Dump out the tests in batch order.
+        for (b = 1; b <= batch; b++)
+                for (i = 0; i < njobs; i++)
+                        if (done[i] == b)
+                                print cf[i], cpus[i];
+}'
+
+# Generate a script to execute the tests in appropriate batches.
+cat << ___EOF___ > $T/script
+TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
+___EOF___
+awk < $T/cfgcpu.pack \
+        -v CONFIGDIR="$CONFIGFRAG/$kversion/" \
+        -v KVM="$KVM" \
+        -v ncpus=$cpus \
+        -v rd=$resdir/$ds/ \
+        -v dur=$dur \
+        -v RCU_QEMU_ARG=$RCU_QEMU_ARG \
+        -v RCU_BOOTARGS=$RCU_BOOTARGS \
+'BEGIN {
+        i = 0;
+}
+
+{
+        cf[i] = $1;
+        cpus[i] = $2;
+        i++;
+}
+
+# Dump out the scripting required to run one test batch.
+function dump(first, pastlast)
+{
+        print "echo ----Start batch: `date`";
+        print "echo ----Start batch: `date` >> " rd "/log";
+        jn=1
+        for (j = first; j < pastlast; j++) {
+                builddir=KVM "/b" jn
+                cpusr[jn] = cpus[j];
+                if (cfrep[cf[j]] == "") {
+                        cfr[jn] = cf[j];
+                        cfrep[cf[j]] = 1;
+                } else {
+                        cfrep[cf[j]]++;
+                        cfr[jn] = cf[j] "." cfrep[cf[j]];
+                }
+                if (cpusr[jn] > ncpus && ncpus != 0)
+                        ovf = "(!)";
+                else
+                        ovf = "";
+                print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date`";
+                print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` >> " rd "/log";
+                print "rm -f " builddir ".*";
+                print "touch " builddir ".wait";
+                print "mkdir " builddir " > /dev/null 2>&1 || :";
+                print "mkdir " rd cfr[jn] " || :";
+                print "kvm-test-1-run.sh " CONFIGDIR cf[j], builddir, rd cfr[jn], dur " \"" RCU_QEMU_ARG "\" \"" RCU_BOOTARGS "\" > " rd cfr[jn]  "/kvm-test-1-run.sh.out 2>&1 &"
+                print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date`";
+                print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` >> " rd "/log";
+                print "while test -f " builddir ".wait"
+                print "do"
+                print "\tsleep 1"
+                print "done"
+                print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date`";
+                print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` >> " rd "/log";
+                jn++;
+        }
+        for (j = 1; j < jn; j++) {
+                builddir=KVM "/b" j
+                print "rm -f " builddir ".ready"
+                print "echo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date`";
+                print "echo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date` >> " rd "/log";
+        }
+        print "wait"
+        print "echo ---- All kernel runs complete. `date`";
+        print "echo ---- All kernel runs complete. `date` >> " rd "/log";
+        for (j = 1; j < jn; j++) {
+                builddir=KVM "/b" j
+                print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results:";
+                print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: >> " rd "/log";
+                print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out";
+                print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out >> " rd "/log";
+        }
+}
+
+END {
+        njobs = i;
+        nc = ncpus;
+        first = 0;
+
+        # Each pass through the following loop considers one test.
+        for (i = 0; i < njobs; i++) {
+                if (ncpus == 0) {
+                        # Sequential test specified, each test its own batch.
+                        dump(i, i + 1);
+                        first = i;
+                } else if (nc < cpus[i] && i != 0) {
+                        # Out of CPUs, dump out a batch.
+                        dump(first, i);
+                        first = i;
+                        nc = ncpus;
+                }
+                # Account for the CPUs needed by the current test.
+                nc -= cpus[i];
+        }
+        # Dump the last batch.
+        if (ncpus != 0)
+                dump(first, i);
+}' >> $T/script
+
+if test "$dryrun" = script
+then
+        # Dump out the script, but define the environment variables that
+        # it needs to run standalone.
+        echo CONFIGFRAG="$CONFIGFRAG; export CONFIGFRAG"
+        echo KVM="$KVM; export KVM"
+        echo KVPATH="$KVPATH; export KVPATH"
+        echo PATH="$PATH; export PATH"
+        echo RCU_BUILDONLY="$RCU_BUILDONLY; export RCU_BUILDONLY"
+        echo RCU_INITRD="$RCU_INITRD; export RCU_INITRD"
+        echo RCU_KMAKE_ARG="$RCU_KMAKE_ARG; export RCU_KMAKE_ARG"
+        echo RCU_QEMU_CMD="$RCU_QEMU_CMD; export RCU_QEMU_CMD"
+        echo RCU_QEMU_INTERACTIVE="$RCU_QEMU_INTERACTIVE; export RCU_QEMU_INTERACTIVE"
+        echo RCU_QEMU_MAC="$RCU_QEMU_MAC; export RCU_QEMU_MAC"
+        echo "mkdir -p "$resdir" || :"
+        echo "mkdir $resdir/$ds"
+        cat $T/script
+        exit 0
+elif test "$dryrun" = sched
+then
+        # Extract the test run schedule from the script.
+        egrep 'start batch|Starting build\.' $T/script |
+                sed -e 's/:.*$//' -e 's/^echo //'
+        exit 0
+else
+        # Not a dryru, so run the script.
+        sh $T/script
+fi
+
 # Tracing: trace_event=rcu:rcu_grace_period,rcu:rcu_future_grace_period,rcu:rcu_grace_period_init,rcu:rcu_nocb_wake,rcu:rcu_preempt_task,rcu:rcu_unlock_preempted_task,rcu:rcu_quiescent_state_report,rcu:rcu_fqs,rcu:rcu_callback,rcu:rcu_kfree_callback,rcu:rcu_batch_start,rcu:rcu_invoke_callback,rcu:rcu_invoke_kfree_callback,rcu:rcu_batch_end,rcu:rcu_torture_read,rcu:rcu_barrier
 
+echo
+echo
 echo " --- `date` Test summary:"
+echo Results directory: $resdir/$ds
 kvm-recheck.sh $resdir/$ds
diff --git a/tools/testing/selftests/rcutorture/configs/lock/BUSTED b/tools/testing/selftests/rcutorture/configs/lock/BUSTED
new file mode 100644
index 000000000000..1d1da1477fc3
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/BUSTED
@@ -0,0 +1,6 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
diff --git a/tools/testing/selftests/rcutorture/configs/lock/BUSTED.boot b/tools/testing/selftests/rcutorture/configs/lock/BUSTED.boot
new file mode 100644
index 000000000000..6386c15e9770
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/BUSTED.boot
@@ -0,0 +1 @@
+locktorture.torture_type=lock_busted
diff --git a/tools/testing/selftests/rcutorture/configs/lock/CFLIST b/tools/testing/selftests/rcutorture/configs/lock/CFLIST
new file mode 100644
index 000000000000..a061b22d1892
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/CFLIST
@@ -0,0 +1 @@
+LOCK01
diff --git a/tools/testing/selftests/rcutorture/configs/lock/CFcommon b/tools/testing/selftests/rcutorture/configs/lock/CFcommon
new file mode 100644
index 000000000000..e372dc269254
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/CFcommon
@@ -0,0 +1,2 @@
+CONFIG_LOCK_TORTURE_TEST=y
+CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK01 b/tools/testing/selftests/rcutorture/configs/lock/LOCK01
new file mode 100644
index 000000000000..a9625e3d6cd9
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK01
@@ -0,0 +1,6 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=8
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
diff --git a/tools/testing/selftests/rcutorture/configs/lock/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/lock/ver_functions.sh
new file mode 100644
index 000000000000..9746ea1cd6c7
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/ver_functions.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+#
+# Kernel-version-dependent shell functions for the rest of the scripts.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, you can access it online at
+# http://www.gnu.org/licenses/gpl-2.0.html.
+#
+# Copyright (C) IBM Corporation, 2014
+#
+# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+
+# locktorture_param_onoff bootparam-string config-file
+#
+# Adds onoff locktorture module parameters to kernels having it.
+locktorture_param_onoff () {
+        if ! bootparam_hotplug_cpu "$1" && configfrag_hotplug_cpu "$2"
+        then
+                echo CPU-hotplug kernel, adding locktorture onoff. 1>&2
+                echo locktorture.onoff_interval=3 locktorture.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 `locktorture_param_onoff "$1" "$2"` \
+                locktorture.stat_interval=15 \
+                locktorture.shutdown_secs=$3 \
+                locktorture.locktorture_runnable=1 \
+                locktorture.verbose=1
+}
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/BUSTED b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED
new file mode 100644
index 000000000000..48d8a245c7fa
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED
@@ -0,0 +1,7 @@
+CONFIG_RCU_TRACE=n
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/BUSTED.boot b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED.boot
new file mode 100644
index 000000000000..6804f9dcfc1b
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED.boot
@@ -0,0 +1 @@
+rcutorture.torture_type=rcu_busted
diff --git a/tools/testing/selftests/rcutorture/configs/CFLIST b/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
index cd3d29cb0a47..cd3d29cb0a47 100644
--- a/tools/testing/selftests/rcutorture/configs/CFLIST
+++ b/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFcommon b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon
new file mode 100644
index 000000000000..d2d2a86139db
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon
@@ -0,0 +1,2 @@
+CONFIG_RCU_TORTURE_TEST=y
+CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/SRCU-N b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N
index 10a0e27f4c75..9fbb41b9b314 100644
--- a/tools/testing/selftests/rcutorture/configs/SRCU-N
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N
@@ -1,8 +1,7 @@
 CONFIG_RCU_TRACE=n
 CONFIG_SMP=y
-CONFIG_NR_CPUS=8
+CONFIG_NR_CPUS=4
 CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=y
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/SRCU-N.boot b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N.boot
index 238bfe3bd0cc..238bfe3bd0cc 100644
--- a/tools/testing/selftests/rcutorture/configs/SRCU-N.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N.boot
diff --git a/tools/testing/selftests/rcutorture/configs/SRCU-P b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P
index 6650e00c6d91..4b6f272dba27 100644
--- a/tools/testing/selftests/rcutorture/configs/SRCU-P
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P
@@ -5,4 +5,3 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/SRCU-P.boot b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P.boot
index 238bfe3bd0cc..238bfe3bd0cc 100644
--- a/tools/testing/selftests/rcutorture/configs/SRCU-P.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P.boot
diff --git a/tools/testing/selftests/rcutorture/configs/TINY01 b/tools/testing/selftests/rcutorture/configs/rcu/TINY01
index 0c2823f21712..0a63e073a00c 100644
--- a/tools/testing/selftests/rcutorture/configs/TINY01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY01
@@ -10,4 +10,3 @@ CONFIG_RCU_TRACE=n
 CONFIG_DEBUG_LOCK_ALLOC=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_PREEMPT_COUNT=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TINY02 b/tools/testing/selftests/rcutorture/configs/rcu/TINY02
index e5072d7528b6..f4feaee40776 100644
--- a/tools/testing/selftests/rcutorture/configs/TINY02
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY02
@@ -10,4 +10,3 @@ CONFIG_RCU_TRACE=y
 CONFIG_DEBUG_LOCK_ALLOC=y
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_PREEMPT_COUNT=y
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TREE01 b/tools/testing/selftests/rcutorture/configs/rcu/TREE01
index 141119a00044..9c827ec59a97 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE01
@@ -20,4 +20,3 @@ CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_CPU_STALL_VERBOSE=n
 CONFIG_RCU_BOOST=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TREE01.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
index 0fc8a3428938..0fc8a3428938 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE01.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
diff --git a/tools/testing/selftests/rcutorture/configs/TREE02 b/tools/testing/selftests/rcutorture/configs/rcu/TREE02
index 2d4d09608528..1a777b5f68b5 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE02
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE02
@@ -7,7 +7,7 @@ CONFIG_PREEMPT=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
-CONFIG_RCU_FAST_NO_HZ=n 
+CONFIG_RCU_FAST_NO_HZ=n
 CONFIG_RCU_TRACE=n
 CONFIG_HOTPLUG_CPU=n
 CONFIG_SUSPEND=n
@@ -23,4 +23,3 @@ CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_CPU_STALL_VERBOSE=y
 CONFIG_RCU_BOOST=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TREE03 b/tools/testing/selftests/rcutorture/configs/rcu/TREE03
index a47de5be8a04..c1f111c1561b 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE03
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE03
@@ -20,4 +20,3 @@ CONFIG_RCU_CPU_STALL_VERBOSE=n
 CONFIG_RCU_BOOST=y
 CONFIG_RCU_BOOST_PRIO=2
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TREE04 b/tools/testing/selftests/rcutorture/configs/rcu/TREE04
index 8d839b86a1d5..7dbd27ce17a4 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE04
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE04
@@ -22,4 +22,3 @@ CONFIG_PROVE_RCU_DELAY=n
 CONFIG_RCU_CPU_STALL_INFO=y
 CONFIG_RCU_CPU_STALL_VERBOSE=y
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TREE04.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot
index 0fc8a3428938..0fc8a3428938 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE04.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot
diff --git a/tools/testing/selftests/rcutorture/configs/TREE05 b/tools/testing/selftests/rcutorture/configs/rcu/TREE05
index b5ba72ea25cb..d0f32e574743 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE05
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE05
@@ -22,4 +22,3 @@ CONFIG_PROVE_RCU_DELAY=y
 CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_CPU_STALL_VERBOSE=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TREE05.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot
index 3b42b8b033cd..3b42b8b033cd 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE05.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot
diff --git a/tools/testing/selftests/rcutorture/configs/TREE06 b/tools/testing/selftests/rcutorture/configs/rcu/TREE06
index 7c95ab48d29f..2e477dfb9c57 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE06
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE06
@@ -23,4 +23,3 @@ CONFIG_PROVE_RCU_DELAY=n
 CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_CPU_STALL_VERBOSE=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TREE07 b/tools/testing/selftests/rcutorture/configs/rcu/TREE07
index 1467404bdec1..042f86ef362a 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE07
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE07
@@ -21,4 +21,3 @@ CONFIG_PROVE_RCU_DELAY=n
 CONFIG_RCU_CPU_STALL_INFO=y
 CONFIG_RCU_CPU_STALL_VERBOSE=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TREE08 b/tools/testing/selftests/rcutorture/configs/rcu/TREE08
index 7d097a61ac2a..3438cee1e3c5 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE08
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE08
@@ -23,4 +23,3 @@ CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_CPU_STALL_VERBOSE=n
 CONFIG_RCU_BOOST=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TREE08-T b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T
index 442c4e450ab3..bf4523d3e44c 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE08-T
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T
@@ -23,4 +23,3 @@ CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_CPU_STALL_VERBOSE=n
 CONFIG_RCU_BOOST=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/TREE09 b/tools/testing/selftests/rcutorture/configs/rcu/TREE09
index 0d1ec0d3dfee..81e4f7c0bf0b 100644
--- a/tools/testing/selftests/rcutorture/configs/TREE09
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE09
@@ -18,4 +18,3 @@ CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_CPU_STALL_VERBOSE=n
 CONFIG_RCU_BOOST=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/CFLIST b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/CFLIST
index 18223947bbcb..18223947bbcb 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/CFLIST
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/CFLIST
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/N1-S-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/N1-S-T-NH-SD-SMP-HP
index d3ef873eb6e7..d3ef873eb6e7 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/N1-S-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/N1-S-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/N2-2-t-nh-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/N2-2-t-nh-sd-SMP-hp
index 02e418572b1b..02e418572b1b 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/N2-2-t-nh-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/N2-2-t-nh-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/N3-3-T-nh-SD-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/N3-3-T-nh-SD-SMP-hp
index b3100f69c8cf..b3100f69c8cf 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/N3-3-T-nh-SD-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/N3-3-T-nh-SD-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/N4-A-t-NH-sd-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/N4-A-t-NH-sd-SMP-HP
index c56b44530725..c56b44530725 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/N4-A-t-NH-sd-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/N4-A-t-NH-sd-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/N5-U-T-NH-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/N5-U-T-NH-sd-SMP-hp
index 90d924fea9e9..90d924fea9e9 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/N5-U-T-NH-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/N5-U-T-NH-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/NT1-nh b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/NT1-nh
index 023f312a931c..023f312a931c 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/NT1-nh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/NT1-nh
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/NT3-NH b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/NT3-NH
index 6fd0235dae73..6fd0235dae73 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/NT3-NH
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/NT3-NH
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/P1-S-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P1-S-T-NH-SD-SMP-HP
index f72402d7c13d..f72402d7c13d 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/P1-S-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P1-S-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/P2-2-t-nh-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P2-2-t-nh-sd-SMP-hp
index 0f3b667d2a9f..0f3b667d2a9f 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/P2-2-t-nh-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P2-2-t-nh-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/P3-3-T-nh-SD-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P3-3-T-nh-SD-SMP-hp
index b035e141bf2a..b035e141bf2a 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/P3-3-T-nh-SD-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P3-3-T-nh-SD-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/P4-A-t-NH-sd-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P4-A-t-NH-sd-SMP-HP
index 3ccf6a9447f5..3ccf6a9447f5 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/P4-A-t-NH-sd-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P4-A-t-NH-sd-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/P5-U-T-NH-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P5-U-T-NH-sd-SMP-hp
index ef624ce73d8e..ef624ce73d8e 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/P5-U-T-NH-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P5-U-T-NH-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/PT1-nh b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/PT1-nh
index e3361c3894a1..e3361c3894a1 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/PT1-nh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/PT1-nh
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/PT2-NH b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/PT2-NH
index 64abfc3b4d94..64abfc3b4d94 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/PT2-NH
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/PT2-NH
diff --git a/tools/testing/selftests/rcutorture/configs/v0.0/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/ver_functions.sh
index e8052539af54..5ace37a89780 100644
--- a/tools/testing/selftests/rcutorture/configs/v0.0/ver_functions.sh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/ver_functions.sh
@@ -20,16 +20,14 @@
 #
 # 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 () {
-        echo $1
+# per_version_boot_params bootparam-string config-file seconds
+#
+# 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
 }
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/CFLIST b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/CFLIST
index da4cbc668f2a..da4cbc668f2a 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/CFLIST
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/CFLIST
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/N1-S-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N1-S-T-NH-SD-SMP-HP
index d81e11d280aa..d81e11d280aa 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/N1-S-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N1-S-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/N2-2-t-nh-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N2-2-t-nh-sd-SMP-hp
index 02e418572b1b..02e418572b1b 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/N2-2-t-nh-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N2-2-t-nh-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/N3-3-T-nh-SD-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N3-3-T-nh-SD-SMP-hp
index b3100f69c8cf..b3100f69c8cf 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/N3-3-T-nh-SD-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N3-3-T-nh-SD-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/N4-A-t-NH-sd-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N4-A-t-NH-sd-SMP-HP
index c56b44530725..c56b44530725 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/N4-A-t-NH-sd-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N4-A-t-NH-sd-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/N5-U-T-NH-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N5-U-T-NH-sd-SMP-hp
index 90d924fea9e9..90d924fea9e9 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/N5-U-T-NH-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N5-U-T-NH-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/N6---t-nh-SD-smp-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N6---t-nh-SD-smp-hp
index 0ccc36d72738..0ccc36d72738 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/N6---t-nh-SD-smp-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N6---t-nh-SD-smp-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/N7-4-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N7-4-T-NH-SD-SMP-HP
index 3f640cf84973..3f640cf84973 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/N7-4-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N7-4-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/N8-2-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N8-2-T-NH-SD-SMP-HP
index 285da2dd8ac3..285da2dd8ac3 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/N8-2-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/N8-2-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/NT1-nh b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/NT1-nh
index 023f312a931c..023f312a931c 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/NT1-nh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/NT1-nh
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/NT3-NH b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/NT3-NH
index 6fd0235dae73..6fd0235dae73 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/NT3-NH
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/NT3-NH
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/P1-S-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P1-S-T-NH-SD-SMP-HP
index 9647c44cf4b7..9647c44cf4b7 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/P1-S-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P1-S-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/P2-2-t-nh-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P2-2-t-nh-sd-SMP-hp
index 0f3b667d2a9f..0f3b667d2a9f 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/P2-2-t-nh-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P2-2-t-nh-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/P3-3-T-nh-SD-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P3-3-T-nh-SD-SMP-hp
index b035e141bf2a..b035e141bf2a 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/P3-3-T-nh-SD-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P3-3-T-nh-SD-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/P4-A-t-NH-sd-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P4-A-t-NH-sd-SMP-HP
index 3ccf6a9447f5..3ccf6a9447f5 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/P4-A-t-NH-sd-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P4-A-t-NH-sd-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/P5-U-T-NH-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P5-U-T-NH-sd-SMP-hp
index ef624ce73d8e..ef624ce73d8e 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/P5-U-T-NH-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P5-U-T-NH-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/P6---t-nh-SD-smp-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P6---t-nh-SD-smp-hp
index f4c9175828bf..f4c9175828bf 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/P6---t-nh-SD-smp-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P6---t-nh-SD-smp-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP
index 77a8c5b75763..77a8c5b75763 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-HP-all b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP-all
index 0eecebc6e95f..0eecebc6e95f 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-HP-all
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP-all
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-HP-none b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP-none
index 0eecebc6e95f..0eecebc6e95f 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-HP-none
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP-none
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-hp
index 588bc70420cd..588bc70420cd 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/PT1-nh b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/PT1-nh
index e3361c3894a1..e3361c3894a1 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/PT1-nh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/PT1-nh
diff --git a/tools/testing/selftests/rcutorture/configs/v3.12/PT2-NH b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/PT2-NH
index 64abfc3b4d94..64abfc3b4d94 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.12/PT2-NH
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/PT2-NH
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/CFLIST b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/CFLIST
index 18223947bbcb..18223947bbcb 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/CFLIST
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/CFLIST
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/N1-S-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/N1-S-T-NH-SD-SMP-HP
index d81e11d280aa..d81e11d280aa 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/N1-S-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/N1-S-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/N2-2-t-nh-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/N2-2-t-nh-sd-SMP-hp
index 02e418572b1b..02e418572b1b 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/N2-2-t-nh-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/N2-2-t-nh-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/N3-3-T-nh-SD-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/N3-3-T-nh-SD-SMP-hp
index b3100f69c8cf..b3100f69c8cf 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/N3-3-T-nh-SD-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/N3-3-T-nh-SD-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/N4-A-t-NH-sd-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/N4-A-t-NH-sd-SMP-HP
index c56b44530725..c56b44530725 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/N4-A-t-NH-sd-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/N4-A-t-NH-sd-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/N5-U-T-NH-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/N5-U-T-NH-sd-SMP-hp
index 90d924fea9e9..90d924fea9e9 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/N5-U-T-NH-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/N5-U-T-NH-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/NT1-nh b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/NT1-nh
index 023f312a931c..023f312a931c 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/NT1-nh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/NT1-nh
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/NT3-NH b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/NT3-NH
index 6fd0235dae73..6fd0235dae73 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/NT3-NH
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/NT3-NH
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/P1-S-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P1-S-T-NH-SD-SMP-HP
index 9647c44cf4b7..9647c44cf4b7 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/P1-S-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P1-S-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/P2-2-t-nh-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P2-2-t-nh-sd-SMP-hp
index 0f3b667d2a9f..0f3b667d2a9f 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/P2-2-t-nh-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P2-2-t-nh-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/P3-3-T-nh-SD-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P3-3-T-nh-SD-SMP-hp
index b035e141bf2a..b035e141bf2a 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/P3-3-T-nh-SD-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P3-3-T-nh-SD-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/P4-A-t-NH-sd-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P4-A-t-NH-sd-SMP-HP
index 3ccf6a9447f5..3ccf6a9447f5 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/P4-A-t-NH-sd-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P4-A-t-NH-sd-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/P5-U-T-NH-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P5-U-T-NH-sd-SMP-hp
index ef624ce73d8e..ef624ce73d8e 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/P5-U-T-NH-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P5-U-T-NH-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/PT1-nh b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/PT1-nh
index e3361c3894a1..e3361c3894a1 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/PT1-nh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/PT1-nh
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/PT2-NH b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/PT2-NH
index 64abfc3b4d94..64abfc3b4d94 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/PT2-NH
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/PT2-NH
diff --git a/tools/testing/selftests/rcutorture/configs/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/ver_functions.sh
index 5e40eadea777..bae55692ce6e 100644
--- a/tools/testing/selftests/rcutorture/configs/ver_functions.sh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/ver_functions.sh
@@ -20,18 +20,6 @@
 #
 # 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 () {
-        if echo $1 | grep -q "rcutorture\.n_barrier_cbs"
-        then
-                echo $1
-        else
-                echo $1 rcutorture.n_barrier_cbs=4
-        fi
-}
-
 # rcutorture_param_onoff bootparam-string config-file
 #
 # Adds onoff rcutorture module parameters to kernels having it.
@@ -39,8 +27,18 @@ 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.stat_interval=15 \
+                rcutorture.shutdown_secs=$3 \
+                rcutorture.rcutorture_runnable=1 \
+                rcutorture.test_no_idle_hz=1 \
+                rcutorture.verbose=1
+}
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/CFLIST b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/CFLIST
index 18223947bbcb..18223947bbcb 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/CFLIST
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/CFLIST
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/N1-S-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/N1-S-T-NH-SD-SMP-HP
index d81e11d280aa..d81e11d280aa 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/N1-S-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/N1-S-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/N2-2-t-nh-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/N2-2-t-nh-sd-SMP-hp
index 02e418572b1b..02e418572b1b 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/N2-2-t-nh-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/N2-2-t-nh-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/N3-3-T-nh-SD-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/N3-3-T-nh-SD-SMP-hp
index b3100f69c8cf..b3100f69c8cf 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/N3-3-T-nh-SD-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/N3-3-T-nh-SD-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/N4-A-t-NH-sd-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/N4-A-t-NH-sd-SMP-HP
index c56b44530725..c56b44530725 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/N4-A-t-NH-sd-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/N4-A-t-NH-sd-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/N5-U-T-NH-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/N5-U-T-NH-sd-SMP-hp
index 90d924fea9e9..90d924fea9e9 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/N5-U-T-NH-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/N5-U-T-NH-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/NT1-nh b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/NT1-nh
index 023f312a931c..023f312a931c 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/NT1-nh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/NT1-nh
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/NT3-NH b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/NT3-NH
index 6fd0235dae73..6fd0235dae73 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/NT3-NH
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/NT3-NH
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/P1-S-T-NH-SD-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P1-S-T-NH-SD-SMP-HP
index 9647c44cf4b7..9647c44cf4b7 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/P1-S-T-NH-SD-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P1-S-T-NH-SD-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/P2-2-t-nh-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P2-2-t-nh-sd-SMP-hp
index 0f3b667d2a9f..0f3b667d2a9f 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/P2-2-t-nh-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P2-2-t-nh-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/P3-3-T-nh-SD-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P3-3-T-nh-SD-SMP-hp
index b035e141bf2a..b035e141bf2a 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/P3-3-T-nh-SD-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P3-3-T-nh-SD-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/P4-A-t-NH-sd-SMP-HP b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P4-A-t-NH-sd-SMP-HP
index 3ccf6a9447f5..3ccf6a9447f5 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/P4-A-t-NH-sd-SMP-HP
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P4-A-t-NH-sd-SMP-HP
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/P5-U-T-NH-sd-SMP-hp b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P5-U-T-NH-sd-SMP-hp
index ef624ce73d8e..ef624ce73d8e 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/P5-U-T-NH-sd-SMP-hp
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P5-U-T-NH-sd-SMP-hp
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/PT1-nh b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/PT1-nh
index e3361c3894a1..e3361c3894a1 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/PT1-nh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/PT1-nh
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/PT2-NH b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/PT2-NH
index 64abfc3b4d94..64abfc3b4d94 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/PT2-NH
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/PT2-NH
diff --git a/tools/testing/selftests/rcutorture/configs/v3.5/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/ver_functions.sh
index 6a5f13aab44d..8977d8d31b19 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.5/ver_functions.sh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/ver_functions.sh
@@ -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
+}
diff --git a/tools/testing/selftests/rcutorture/configs/v3.3/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh
index c37432f3572c..8977d8d31b19 100644
--- a/tools/testing/selftests/rcutorture/configs/v3.3/ver_functions.sh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh
@@ -24,7 +24,12 @@
 #
 # Adds n_barrier_cbs rcutorture module parameter to kernels having it.
 rcutorture_param_n_barrier_cbs () {
-        echo $1
+        if echo $1 | grep -q "rcutorture\.n_barrier_cbs"
+        then
+                :
+        else
+                echo rcutorture.n_barrier_cbs=4
+        fi
 }
 
 # rcutorture_param_onoff bootparam-string config-file
@@ -33,9 +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
+}
diff --git a/tools/testing/selftests/rcutorture/doc/TREE_RCU-Kconfig.txt b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt
index adbb76cffb49..adbb76cffb49 100644
--- a/tools/testing/selftests/rcutorture/doc/TREE_RCU-Kconfig.txt
+++ b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt