Revert "prohibit rcutorture from being compiled into the kernel"
This reverts commit 9aaffc898ff4a3df18c5fc4b9e0fa47e779ad726.
That commit was a very bad idea. RCU_TORTURE found many boot timing
bugs and other sorts of bugs in the past, so excluding it from
boot images is very silly.
The option already depends on DEBUG_KERNEL and is disabled by default.
Even when it runs, the test threads are reniced. If it annoys people
we could add a runtime sysctl.
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index d2099f4..f51ba2f 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -531,13 +531,14 @@
config RCU_TORTURE_TEST
tristate "torture tests for RCU"
depends on DEBUG_KERNEL
- depends on m
default n
help
This option provides a kernel module that runs torture tests
on the RCU infrastructure. The kernel module may be built
after the fact on the running kernel to be tested, if desired.
+ Say Y here if you want RCU torture tests to start automatically
+ at boot time (you probably don't).
Say M if you want the RCU torture tests to build as a module.
Say N if you are unsure.