[PATCH tip/core/rcu 28/30] refperf: Rename RCU_REF_PERF_TEST to RCU_REF_SCALE_TEST

paulmck
2020-06-23T00:30:52Z

The old Kconfig option name is all too easy to conflate with the
unrelated "perf" feature, so this commit renames RCU_REF_PERF_TEST to
RCU_REF_SCALE_TEST.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
kernel/rcu/Kconfig.debug | 4 ++--
kernel/rcu/Makefile | 2 +-
kernel/rcu/refperf.c | 6 +++---
tools/testing/selftests/rcutorture/configs/refperf/CFcommon | 2 +-
4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/kernel/rcu/Kconfig.debug b/kernel/rcu/Kconfig.debug
index 858765b..3cf6132 100644
--- a/kernel/rcu/Kconfig.debug
+++ b/kernel/rcu/Kconfig.debug
@@ -61,8 +61,8 @@ config RCU_TORTURE_TEST
Say M if you want the RCU torture tests to build as a module.
Say N if you are unsure.

-config RCU_REF_PERF_TEST
- tristate "Performance tests for read-side synchronization (RCU and others)"
+config RCU_REF_SCALE_TEST
+ tristate "Scalability tests for read-side synchronization (RCU and others)"
depends on DEBUG_KERNEL
select TORTURE_TEST
select SRCU
diff --git a/kernel/rcu/Makefile b/kernel/rcu/Makefile
index ba7d826..45d562d 100644
--- a/kernel/rcu/Makefile
+++ b/kernel/rcu/Makefile
@@ -12,7 +12,7 @@ obj-$(CONFIG_TREE_SRCU) += srcutree.o
obj-$(CONFIG_TINY_SRCU) += srcutiny.o
obj-$(CONFIG_RCU_TORTURE_TEST) += rcutorture.o
obj-$(CONFIG_RCU_PERF_TEST) += rcuperf.o
-obj-$(CONFIG_RCU_REF_PERF_TEST) += refperf.o
+obj-$(CONFIG_RCU_REF_SCALE_TEST) += refperf.o
obj-$(CONFIG_TREE_RCU) += tree.o
obj-$(CONFIG_TINY_RCU) += tiny.o
obj-$(CONFIG_RCU_NEED_SEGCBLIST) += rcu_segcblist.o
diff --git a/kernel/rcu/refperf.c b/kernel/rcu/refperf.c
index 2bfdcdc..7c98057 100644
--- a/kernel/rcu/refperf.c
+++ b/kernel/rcu/refperf.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0+
//
-// Performance test comparing RCU vs other mechanisms
+// Scalability test comparing RCU vs other mechanisms
// for acquiring references on objects.
//
// Copyright (C) Google, 2020.
@@ -59,7 +59,7 @@ MODULE_PARM_DESC(perf_type, "Type of test (rcu, srcu, refcnt, rwsem, rwlock.");
torture_param(int, verbose, 0, "Enable verbose debugging printk()s");

// Wait until there are multiple CPUs before starting test.
-torture_param(int, holdoff, IS_BUILTIN(CONFIG_RCU_REF_PERF_TEST) ? 10 : 0,
+torture_param(int, holdoff, IS_BUILTIN(CONFIG_RCU_REF_SCALE_TEST) ? 10 : 0,
"Holdoff time before test start (s)");
// Number of loops per experiment, all readers execute operations concurrently.
torture_param(long, loops, 10000, "Number of loops per experiment.");
@@ -656,7 +656,7 @@ ref_perf_init(void)
for (i = 0; i < ARRAY_SIZE(perf_ops); i++)
pr_cont(" %s", perf_ops[i]->name);
pr_cont("\n");
- WARN_ON(!IS_MODULE(CONFIG_RCU_REF_PERF_TEST));
+ WARN_ON(!IS_MODULE(CONFIG_RCU_REF_SCALE_TEST));
firsterr = -EINVAL;
cur_ops = NULL;
goto unwind;
diff --git a/tools/testing/selftests/rcutorture/configs/refperf/CFcommon b/tools/testing/selftests/rcutorture/configs/refperf/CFcommon
index 8ba5ba2..a98b58b 100644
--- a/tools/testing/selftests/rcutorture/configs/refperf/CFcommon
+++ b/tools/testing/selftests/rcutorture/configs/refperf/CFcommon
@@ -1,2 +1,2 @@
-CONFIG_RCU_REF_PERF_TEST=y
+CONFIG_RCU_REF_SCALE_TEST=y
CONFIG_PRINTK_TIME=y
--
2.9.5