rcu: Move RCU_TRACE to lib/Kconfig.debug

The RCU_TRACE kernel parameter has always been intended for debugging,
not for production use.  Formalize this by moving RCU_TRACE from
init/Kconfig to lib/Kconfig.debug.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/init/Kconfig b/init/Kconfig
index 3f42cd6..72f33fa 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -438,15 +438,6 @@ config PREEMPT_RCU
          This option enables preemptible-RCU code that is common between
          the TREE_PREEMPT_RCU and TINY_PREEMPT_RCU implementations.
 
-config RCU_TRACE
-       bool "Enable tracing for RCU"
-       help
-         This option provides tracing in RCU which presents stats
-         in debugfs for debugging RCU implementation.
-
-         Say Y here if you want to enable RCU tracing
-         Say N if you are unsure.
-
 config RCU_FANOUT
        int "Tree-based hierarchical RCU fanout value"
        range 2 64 if 64BIT

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 8745ac7..3cc419d 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -927,6 +927,16 @@ config RCU_CPU_STALL_VERBOSE
 
          Say Y if you want to enable such checks.
 
+config RCU_TRACE
+       bool "Enable tracing for RCU"
+       depends on DEBUG_KERNEL
+       help
+         This option provides tracing in RCU which presents stats
+         in debugfs for debugging RCU implementation.
+
+         Say Y here if you want to enable RCU tracing
+         Say N if you are unsure.
+
 config KPROBES_SANITY_TEST
        bool "Kprobes sanity tests"
        depends on DEBUG_KERNEL