rcu: Disable RCU_PERF_TEST and RCU_TORTURE_TEST for usermode Linux
Usermode Linux currently does not implement arch_irqs_disabled_flags(),
which results in a build failure in TASKS_RCU. Commit 570dd3c74241 ("rcu:
Disable TASKS_RCU for usermode Linux") attempted to fix this by making
TASKS_RCU depend on !UML, which does work in production builds. However,
test builds that enable either RCU_PERF_TEST or RCU_TORTURE_TEST will
select TASKS_RCU, defeating the dependency on !UML. This commit therefore
makes both RCU_PERF_TEST and RCU_TORTURE_TEST also depend on !UML.
The usermode Linux maintainers expect to merge arch_irqs_disabled_flags()
into 4.8, at which point this commit may be reverted.
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index dbcceb9..c2bbaae 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1307,6 +1307,7 @@
config RCU_PERF_TEST
tristate "performance tests for RCU"
depends on DEBUG_KERNEL
+ depends on !UML
select TORTURE_TEST
select SRCU
select TASKS_RCU
@@ -1324,6 +1325,7 @@
config RCU_TORTURE_TEST
tristate "torture tests for RCU"
depends on DEBUG_KERNEL
+ depends on !UML
select TORTURE_TEST
select SRCU
select TASKS_RCU
