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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-04-10 20:27:19 +0300
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-06-08 18:25:20 +0300
commit8d6dd656a1c5683534ee174f06c9b1d736ebea3c (patch)
tree56cea4b5528ace68eaca951facb7d0b4fac9ac49 /tools/testing
parent27dc0b1b9fdaefeeb3d6c8fa0aed5d826ce8f3e9 (diff)
downloadlinux-8d6dd656a1c5683534ee174f06c9b1d736ebea3c.tar.xz
rcutorture: Add three-level tree test for Tree SRCU
This commit adds a test for a three-level srcu_node tree for Tree SRCU in the existing SRCU-P scenario. This requires enabling CONFIG_RCU_EXPERT, so the CONFIG_RCU_EXPERT=n scenario is now SRCU-N. The reason for using SRCU-P for the tall tree is that preemption raises the possibility of locating more bugs than does the non-preemptive SRCU-N. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'tools/testing')
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/SRCU-N2
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/SRCU-P4
2 files changed, 4 insertions, 2 deletions
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N
index 1a087c3c8bb8..2da8b49589a0 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N
@@ -5,4 +5,4 @@ CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
-CONFIG_RCU_EXPERT=y
+#CHECK#CONFIG_RCU_EXPERT=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P
index 8205b481d9ed..ab7ccd38232b 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P
@@ -2,9 +2,11 @@ CONFIG_RCU_TRACE=n
CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_HOTPLUG_CPU=y
+CONFIG_RCU_EXPERT=y
+CONFIG_RCU_FANOUT=2
+CONFIG_RCU_FANOUT_LEAF=2
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
-#CHECK#CONFIG_RCU_EXPERT=n
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y