rcutorture: Refactor TREE_RCU test cases

The TREE_RCU test cases were first put in place many years ago, and have
been incrementally modified rather than being reworked.  This commit
therefore completes a long-overdue reworking of the TREE_RCU test cases.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Greg KH <gregkh@linuxfoundation.org>

tools/testing/selftests/rcutorture/configs/CFLIST

-sysidleY.2013.06.19a
-sysidleN.2013.06.19a
-P1-S-T-NH-SD-SMP-HP
-P2-2-t-nh-sd-SMP-hp
-P3-3-T-nh-SD-SMP-hp
-P4-A-t-NH-sd-SMP-HP
-P5-U-T-NH-sd-SMP-hp
-P6---t-nh-SD-smp-hp
-N1-S-T-NH-SD-SMP-HP
-N2-2-t-nh-sd-SMP-hp
-N3-3-T-nh-SD-SMP-hp
-N4-A-t-NH-sd-SMP-HP
-N5-U-T-NH-sd-SMP-hp
-PT1-nh
-PT2-NH
+TREE01
+TREE02
+TREE03
+TREE04
+TREE05
+TREE06
+TREE07
+TREE08
+TREE09
+SRCU-N
+SRCU-P
 NT1-nh
 NT3-NH

tools/testing/selftests/rcutorture/configs/N1-S-T-NH-SD-SMP-HP

-CONFIG_RCU_TRACE=y
-CONFIG_RCU_FAST_NO_HZ=y
-CONFIG_NO_HZ=y
-CONFIG_SMP=y
-CONFIG_RCU_FANOUT=8
-CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=y
-CONFIG_PREEMPT_NONE=y
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=n
-#CHECK#CONFIG_TREE_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/N2-2-t-nh-sd-SMP-hp

-CONFIG_RCU_TRACE=n
-CONFIG_NO_HZ=n
-CONFIG_SMP=y
-CONFIG_RCU_FANOUT=4
-CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
-CONFIG_PREEMPT_NONE=y
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=n
-#CHECK#CONFIG_TREE_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/N6---t-nh-SD-smp-hp

-CONFIG_RCU_TRACE=n
-CONFIG_NO_HZ=n
-CONFIG_SMP=y
-CONFIG_NR_CPUS=1
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
-CONFIG_PREEMPT_NONE=y
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=n
-#CHECK#CONFIG_TREE_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/N8-2-T-NH-SD-SMP-HP

-CONFIG_RCU_TRACE=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_RCU_CPU_STALL_INFO=y
-CONFIG_NO_HZ=y
-CONFIG_SMP=y
-CONFIG_RCU_FANOUT=14
-CONFIG_NR_CPUS=16
-CONFIG_RCU_FANOUT_EXACT=y
-CONFIG_HOTPLUG_CPU=y
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
-CONFIG_PREEMPT_NONE=y
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=n
-#CHECK#CONFIG_TREE_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/P1-S-T-NH-SD-SMP-HP

-CONFIG_RCU_TRACE=y
-CONFIG_RCU_CPU_STALL_INFO=y
-CONFIG_NO_HZ=y
-CONFIG_RCU_FAST_NO_HZ=y
-CONFIG_SMP=y
-CONFIG_RCU_FANOUT=8
-CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=y
-CONFIG_PREEMPT_NONE=n
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/P5-U-T-NH-sd-SMP-hp

-CONFIG_RCU_TRACE=y
-CONFIG_RCU_CPU_STALL_INFO=y
-CONFIG_NO_HZ=y
-CONFIG_SMP=y
-CONFIG_RCU_FANOUT=6
-CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=y
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
-CONFIG_PREEMPT_NONE=n
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_PROVE_RCU_DELAY=y
-CONFIG_DEBUG_OBJECTS=y
-CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
-CONFIG_RT_MUTEXES=y
-CONFIG_RCU_BOOST=y
-CONFIG_RCU_BOOST_PRIO=2
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/P6---t-nh-SD-smp-hp

-CONFIG_RCU_TRACE=n
-CONFIG_NO_HZ=n
-CONFIG_SMP=n
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
-CONFIG_PREEMPT_NONE=n
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=y
-CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/P7-4-T-NH-SD-SMP-HP-all

-CONFIG_RCU_TRACE=y
-CONFIG_NO_HZ=y
-CONFIG_SMP=y
-CONFIG_RCU_FANOUT=2
-CONFIG_NR_CPUS=16
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=y
-CONFIG_RCU_NOCB_CPU=y
-CONFIG_RCU_NOCB_CPU_NONE=y
-CONFIG_RCU_NOCB_CPU_ZERO=n
-CONFIG_RCU_NOCB_CPU_ALL=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
-CONFIG_PREEMPT_NONE=n
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_PROVE_LOCKING=y
-CONFIG_PROVE_RCU=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_DEBUG_OBJECTS=y
-CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_SLUB=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/P7-4-T-NH-SD-SMP-HP-none

-CONFIG_RCU_TRACE=y
-CONFIG_NO_HZ=y
-CONFIG_SMP=y
-CONFIG_RCU_FANOUT=2
-CONFIG_NR_CPUS=16
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=y
-CONFIG_RCU_NOCB_CPU=y
-CONFIG_RCU_NOCB_CPU_NONE=y
-CONFIG_RCU_NOCB_CPU_ZERO=n
-CONFIG_RCU_NOCB_CPU_ALL=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
-CONFIG_PREEMPT_NONE=n
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_PROVE_LOCKING=y
-CONFIG_PROVE_RCU=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_DEBUG_OBJECTS=y
-CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_SLUB=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/P7-4-T-NH-SD-SMP-hp

-CONFIG_RCU_TRACE=y
-CONFIG_NO_HZ=y
-CONFIG_SMP=y
-CONFIG_RCU_FANOUT=2
-CONFIG_NR_CPUS=16
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_RCU_NOCB_CPU=y
-CONFIG_RCU_NOCB_CPU_NONE=n
-CONFIG_RCU_NOCB_CPU_ZERO=y
-CONFIG_RCU_NOCB_CPU_ALL=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
-CONFIG_PREEMPT_NONE=n
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_PROVE_LOCKING=y
-CONFIG_PROVE_RCU=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_DEBUG_OBJECTS=y
-CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_SLUB=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/sysidleN.2013.06.19a → tools/testing/selftests/rcutorture/configs/TREE01

-CONFIG_RCU_TRACE=y
-CONFIG_RCU_CPU_STALL_INFO=y
-CONFIG_NO_HZ_PERIODIC=n
-CONFIG_NO_HZ_IDLE=n
-CONFIG_NO_HZ_FULL=y
-CONFIG_NO_HZ_FULL_SYSIDLE=n
-CONFIG_RCU_FAST_NO_HZ=y
 CONFIG_SMP=y
-CONFIG_RCU_FANOUT=8
 CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
 #CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_FAST_NO_HZ=y
+CONFIG_RCU_TRACE=y
+CONFIG_HOTPLUG_CPU=y
+CONFIG_RCU_FANOUT=8
+CONFIG_RCU_FANOUT_EXACT=n
+CONFIG_RCU_NOCB_CPU=y
+CONFIG_RCU_NOCB_CPU_ZERO=y
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_RCU_DELAY=n
+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
-

tools/testing/selftests/rcutorture/configs/TREE01.boot

+rcutorture.torture_type=rcu_bh

tools/testing/selftests/rcutorture/configs/P2-2-t-nh-sd-SMP-hp → tools/testing/selftests/rcutorture/configs/TREE02

-CONFIG_RCU_TRACE=n
-CONFIG_NO_HZ=n
 CONFIG_SMP=y
-CONFIG_RCU_FANOUT=4
 CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
 #CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_FAST_NO_HZ=n 
+CONFIG_RCU_TRACE=n
+CONFIG_HOTPLUG_CPU=n
+CONFIG_SUSPEND=n
+CONFIG_HIBERNATION=n
+CONFIG_RCU_FANOUT=3
+CONFIG_RCU_FANOUT_LEAF=3
+CONFIG_RCU_FANOUT_EXACT=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=n
+CONFIG_PROVE_RCU_DELAY=n
+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
-

tools/testing/selftests/rcutorture/configs/P4-A-t-NH-sd-SMP-HP → tools/testing/selftests/rcutorture/configs/TREE03

-CONFIG_RCU_TRACE=n
-CONFIG_NO_HZ=y
 CONFIG_SMP=y
-CONFIG_RCU_FANOUT=6
 CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
 #CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_RT_MUTEXES=y
+CONFIG_HZ_PERIODIC=y
+CONFIG_NO_HZ_IDLE=n
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_TRACE=y
+CONFIG_HOTPLUG_CPU=y
+CONFIG_RCU_FANOUT=4
+CONFIG_RCU_FANOUT_LEAF=4
+CONFIG_RCU_FANOUT_EXACT=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_RCU_DELAY=n
+CONFIG_RCU_CPU_STALL_INFO=n
+CONFIG_RCU_CPU_STALL_VERBOSE=n
 CONFIG_RCU_BOOST=y
 CONFIG_RCU_BOOST_PRIO=2
-CONFIG_PROVE_LOCKING=y
-CONFIG_PROVE_RCU=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_PRINTK_TIME=y
-

tools/testing/selftests/rcutorture/configs/N3-3-T-nh-SD-SMP-hp → tools/testing/selftests/rcutorture/configs/TREE04

-CONFIG_RCU_TRACE=y
-CONFIG_NO_HZ=n
 CONFIG_SMP=y
-CONFIG_RCU_FANOUT=2
 CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=y
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=n
 #CHECK#CONFIG_TREE_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_PROVE_LOCKING=y
-CONFIG_PROVE_RCU=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=n
+CONFIG_NO_HZ_FULL=y
+CONFIG_NO_HZ_FULL_ALL=y
+CONFIG_RCU_FAST_NO_HZ=y
+CONFIG_RCU_TRACE=y
+CONFIG_HOTPLUG_CPU=n
+CONFIG_SUSPEND=n
+CONFIG_HIBERNATION=n
+CONFIG_RCU_FANOUT=2
+CONFIG_RCU_FANOUT_LEAF=2
+CONFIG_RCU_FANOUT_EXACT=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+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
-

tools/testing/selftests/rcutorture/configs/TREE04.boot

+rcutorture.torture_type=rcu_bh

tools/testing/selftests/rcutorture/configs/N4-A-t-NH-sd-SMP-HP → tools/testing/selftests/rcutorture/configs/TREE05

-CONFIG_RCU_TRACE=n
-CONFIG_NO_HZ=y
 CONFIG_SMP=y
-CONFIG_RCU_FANOUT=6
 CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=y
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=n
 #CHECK#CONFIG_TREE_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_FAST_NO_HZ=n
+CONFIG_RCU_TRACE=n
+CONFIG_HOTPLUG_CPU=y
+CONFIG_RCU_FANOUT=6
+CONFIG_RCU_FANOUT_LEAF=6
+CONFIG_RCU_FANOUT_EXACT=n
+CONFIG_RCU_NOCB_CPU=y
+CONFIG_RCU_NOCB_CPU_NONE=y
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_PROVE_RCU=y
+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
-

tools/testing/selftests/rcutorture/configs/TREE05.boot

+rcutorture.torture_type=sched

tools/testing/selftests/rcutorture/configs/N5-U-T-NH-sd-SMP-hp → tools/testing/selftests/rcutorture/configs/TREE06

-CONFIG_RCU_TRACE=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_RCU_CPU_STALL_INFO=y
-CONFIG_NO_HZ=y
 CONFIG_SMP=y
-CONFIG_RCU_FANOUT=6
 CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=y
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=y
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=n
 #CHECK#CONFIG_TREE_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_FAST_NO_HZ=n
+CONFIG_RCU_TRACE=n
+CONFIG_HOTPLUG_CPU=n
+CONFIG_SUSPEND=n
+CONFIG_HIBERNATION=n
+CONFIG_RCU_FANOUT=6
+CONFIG_RCU_FANOUT_LEAF=6
+CONFIG_RCU_FANOUT_EXACT=y
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_PROVE_RCU=y
+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
-

tools/testing/selftests/rcutorture/configs/N7-4-T-NH-SD-SMP-HP → tools/testing/selftests/rcutorture/configs/TREE07

-CONFIG_RCU_TRACE=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_RCU_CPU_STALL_INFO=y
-CONFIG_NO_HZ=y
 CONFIG_SMP=y
-CONFIG_RCU_FANOUT=2
 CONFIG_NR_CPUS=16
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=y
-CONFIG_RCU_NOCB_CPU=y
-CONFIG_RCU_NOCB_CPU_NONE=y
-CONFIG_RCU_NOCB_CPU_ZERO=n
-CONFIG_RCU_NOCB_CPU_ALL=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=y
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=n
 #CHECK#CONFIG_TREE_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=n
+CONFIG_NO_HZ_FULL=y
+CONFIG_NO_HZ_FULL_ALL=y
+CONFIG_NO_HZ_FULL_SYSIDLE=y
+CONFIG_RCU_FAST_NO_HZ=n
+CONFIG_RCU_TRACE=y
+CONFIG_HOTPLUG_CPU=y
+CONFIG_RCU_FANOUT=2
+CONFIG_RCU_FANOUT_LEAF=2
+CONFIG_RCU_FANOUT_EXACT=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+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
-

tools/testing/selftests/rcutorture/configs/P7-4-T-NH-SD-SMP-HP → tools/testing/selftests/rcutorture/configs/TREE08

-CONFIG_RCU_TRACE=y
-CONFIG_NO_HZ=y
 CONFIG_SMP=y
-CONFIG_RCU_FANOUT=2
 CONFIG_NR_CPUS=16
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=y
-CONFIG_RCU_NOCB_CPU=y
-CONFIG_RCU_NOCB_CPU_NONE=n
-CONFIG_RCU_NOCB_CPU_ZERO=n
-CONFIG_RCU_NOCB_CPU_ALL=y
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
 #CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_PROVE_LOCKING=y
-CONFIG_PROVE_RCU=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_DEBUG_OBJECTS=y
-CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_SLUB=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_FAST_NO_HZ=n
+CONFIG_RCU_TRACE=n
+CONFIG_HOTPLUG_CPU=n
+CONFIG_SUSPEND=n
+CONFIG_HIBERNATION=n
+CONFIG_RCU_FANOUT=3
+CONFIG_RCU_FANOUT_EXACT=y
+CONFIG_RCU_FANOUT_LEAF=2
+CONFIG_RCU_NOCB_CPU=y
+CONFIG_RCU_NOCB_CPU_ALL=y
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_RCU_DELAY=n
+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
-

tools/testing/selftests/rcutorture/configs/P3-3-T-nh-SD-SMP-hp → tools/testing/selftests/rcutorture/configs/TREE09

-CONFIG_RCU_TRACE=y
-CONFIG_NO_HZ=n
-CONFIG_SMP=y
-CONFIG_RCU_FANOUT=2
-CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
+CONFIG_SMP=n
+CONFIG_NR_CPUS=1
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
 #CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_TRACE=n
+CONFIG_HOTPLUG_CPU=n
+CONFIG_SUSPEND=n
+CONFIG_HIBERNATION=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_RCU_DELAY=n
+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
-

tools/testing/selftests/rcutorture/configs/sysidleY.2013.06.19a

-CONFIG_RCU_TRACE=y
-CONFIG_RCU_CPU_STALL_INFO=y
-CONFIG_NO_HZ_PERIODIC=n
-CONFIG_NO_HZ_IDLE=n
-CONFIG_NO_HZ_FULL=y
-CONFIG_NO_HZ_FULL_SYSIDLE=y
-CONFIG_RCU_FAST_NO_HZ=y
-CONFIG_SMP=y
-CONFIG_RCU_FANOUT=8
-CONFIG_NR_CPUS=8
-CONFIG_RCU_FANOUT_EXACT=n
-CONFIG_HOTPLUG_CPU=y
-CONFIG_PREEMPT_NONE=n
-CONFIG_PREEMPT_VOLUNTARY=n
-CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_RCU_TORTURE_TEST=m
-CONFIG_MODULE_UNLOAD=y
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_PRINTK_TIME=y
-
-CONFIG_PROVE_LOCKING=y
-CONFIG_PROVE_RCU=y
-

tools/testing/selftests/rcutorture/doc/TREE_RCU-Kconfig.txt

+This document gives a brief rationale for the TREE_RCU-related test
+cases, a group that includes TREE_PREEMPT_RCU.
+
+
+Kconfig Parameters:
+
+CONFIG_DEBUG_LOCK_ALLOC -- Do three, covering CONFIG_PROVE_LOCKING & not.
+CONFIG_DEBUG_OBJECTS_RCU_HEAD -- Do one.
+CONFIG_HOTPLUG_CPU -- Do half.  (Every second.)
+CONFIG_HZ_PERIODIC -- Do one.
+CONFIG_NO_HZ_IDLE -- Do those not otherwise specified. (Groups of two.)
+CONFIG_NO_HZ_FULL -- Do two, one with CONFIG_NO_HZ_FULL_SYSIDLE.
+CONFIG_NO_HZ_FULL_SYSIDLE -- Do one.
+CONFIG_PREEMPT -- Do half.  (First three and #8.)
+CONFIG_PROVE_LOCKING -- Do all but two, covering CONFIG_PROVE_RCU and not.
+CONFIG_PROVE_RCU -- Do all but one under CONFIG_PROVE_LOCKING.
+CONFIG_PROVE_RCU_DELAY -- Do one.
+CONFIG_RCU_BOOST -- one of TREE_PREEMPT_RCU.
+CONFIG_RCU_BOOST_PRIO -- set to 2 for _BOOST testing.
+CONFIG_RCU_CPU_STALL_INFO -- do one with and without _VERBOSE.
+CONFIG_RCU_CPU_STALL_VERBOSE -- do one with and without _INFO.
+CONFIG_RCU_FANOUT -- Cover hierarchy as currently, but overlap with others.
+CONFIG_RCU_FANOUT_EXACT -- Do one.
+CONFIG_RCU_FANOUT_LEAF -- Do one non-default.
+CONFIG_RCU_FAST_NO_HZ -- Do one, but not with CONFIG_RCU_NOCB_CPU_ALL.
+CONFIG_RCU_NOCB_CPU -- Do three, see below.
+CONFIG_RCU_NOCB_CPU_ALL -- Do one.
+CONFIG_RCU_NOCB_CPU_NONE -- Do one.
+CONFIG_RCU_NOCB_CPU_ZERO -- Do one.
+CONFIG_RCU_TRACE -- Do half.
+CONFIG_SMP -- Need one !SMP for TREE_PREEMPT_RCU.
+RCU-bh: Do one with PREEMPT and one with !PREEMPT.
+RCU-sched: Do one with PREEMPT but not BOOST.
+
+
+Hierarchy:
+
+TREE01.	CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=8, CONFIG_RCU_FANOUT_EXACT=n.
+TREE02.	CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=3, CONFIG_RCU_FANOUT_EXACT=n,
+	CONFIG_RCU_FANOUT_LEAF=3.
+TREE03.	CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=4, CONFIG_RCU_FANOUT_EXACT=n,
+	CONFIG_RCU_FANOUT_LEAF=4.
+TREE04.	CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=2, CONFIG_RCU_FANOUT_EXACT=n,
+	CONFIG_RCU_FANOUT_LEAF=2.
+TREE05.	CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=6, CONFIG_RCU_FANOUT_EXACT=n
+	CONFIG_RCU_FANOUT_LEAF=6.
+TREE06.	CONFIG_NR_CPUS=8, CONFIG_RCU_FANOUT=6, CONFIG_RCU_FANOUT_EXACT=y
+	CONFIG_RCU_FANOUT_LEAF=6.
+TREE07.	CONFIG_NR_CPUS=16, CONFIG_RCU_FANOUT=2, CONFIG_RCU_FANOUT_EXACT=n,
+	CONFIG_RCU_FANOUT_LEAF=2.
+TREE08.	CONFIG_NR_CPUS=16, CONFIG_RCU_FANOUT=3, CONFIG_RCU_FANOUT_EXACT=y,
+	CONFIG_RCU_FANOUT_LEAF=2.
+TREE09.	CONFIG_NR_CPUS=1.
+
+
+Kconfig Parameters Ignored:
+
+CONFIG_64BIT
+
+	Used only to check CONFIG_RCU_FANOUT value, inspection suffices.
+
+CONFIG_NO_HZ_FULL_SYSIDLE_SMALL
+
+	Defer until Frederic uses this.
+
+CONFIG_PREEMPT_COUNT
+CONFIG_PREEMPT_RCU
+
+	Redundant with CONFIG_PREEMPT, ignore.
+
+CONFIG_RCU_BOOST_DELAY
+
+	Inspection suffices, ignore.
+
+CONFIG_RCU_CPU_STALL_TIMEOUT
+
+	Inspection suffices, ignore.
+
+CONFIG_RCU_STALL_COMMON
+
+	Implied by TREE_RCU and TREE_PREEMPT_RCU.
+
+CONFIG_RCU_TORTURE_TEST
+CONFIG_RCU_TORTURE_TEST_RUNNABLE
+
+	Always used in KVM testing.
+
+CONFIG_RCU_USER_QS
+
+	Redundant with CONFIG_NO_HZ_FULL.
+
+CONFIG_TREE_PREEMPT_RCU
+CONFIG_TREE_RCU
+
+	These are controlled by CONFIG_PREEMPT.