1 files changed, 24 insertions, 0 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 8745ac7d1f75..d27a2aa3e815 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -927,6 +927,30 @@ config RCU_CPU_STALL_VERBOSE
 
           Say Y if you want to enable such checks.
 
+config RCU_CPU_STALL_INFO
+        bool "Print additional diagnostics on RCU CPU stall"
+        depends on (TREE_RCU || TREE_PREEMPT_RCU) && DEBUG_KERNEL
+        default n
+        help
+          For each stalled CPU that is aware of the current RCU grace
+          period, print out additional per-CPU diagnostic information
+          regarding scheduling-clock ticks, idle state, and,
+          for RCU_FAST_NO_HZ kernels, idle-entry state.
+
+          Say N if you are unsure.
+
+          Say Y if you want to enable such diagnostics.
+
+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