sched: Ensure 'sched_domains_numa_levels' is safe to use in other functions

[platform/adaptation/renesas_rcar/renesas_kernel.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index c2024d8..dacbbe4 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -629,6 +629,20 @@ config PROVE_RCU_REPEATEDLY
 
         Say N if you are unsure.
 
+config PROVE_RCU_DELAY
+       bool "RCU debugging: preemptible RCU race provocation"
+       depends on DEBUG_KERNEL && PREEMPT_RCU
+       default n
+       help
+        There is a class of races that involve an unlikely preemption
+        of __rcu_read_unlock() just after ->rcu_read_lock_nesting has
+        been set to INT_MIN.  This feature inserts a delay at that
+        point to increase the probability of these races.
+
+        Say Y to increase probability of preemption of __rcu_read_unlock().
+
+        Say N if you are unsure.
+
 config SPARSE_RCU_POINTER
        bool "RCU debugging: sparse-based checks for pointer usage"
        default n
@@ -1143,6 +1157,46 @@ config PM_NOTIFIER_ERROR_INJECT
 
          If unsure, say N.
 
+config MEMORY_NOTIFIER_ERROR_INJECT
+       tristate "Memory hotplug notifier error injection module"
+       depends on MEMORY_HOTPLUG_SPARSE && NOTIFIER_ERROR_INJECTION
+       help
+         This option provides the ability to inject artifical errors to
+         memory hotplug notifier chain callbacks.  It is controlled through
+         debugfs interface under /sys/kernel/debug/notifier-error-inject/memory
+
+         If the notifier call chain should be failed with some events
+         notified, write the error code to "actions/<notifier event>/error".
+
+         Example: Inject memory hotplug offline error (-12 == -ENOMEM)
+
+         # cd /sys/kernel/debug/notifier-error-inject/memory
+         # echo -12 > actions/MEM_GOING_OFFLINE/error
+         # echo offline > /sys/devices/system/memory/memoryXXX/state
+         bash: echo: write error: Cannot allocate memory
+
+         To compile this code as a module, choose M here: the module will
+         be called pSeries-reconfig-notifier-error-inject.
+
+         If unsure, say N.
+
+config PSERIES_RECONFIG_NOTIFIER_ERROR_INJECT
+       tristate "pSeries reconfig notifier error injection module"
+       depends on PPC_PSERIES && NOTIFIER_ERROR_INJECTION
+       help
+         This option provides the ability to inject artifical errors to
+         pSeries reconfig notifier chain callbacks.  It is controlled
+         through debugfs interface under
+         /sys/kernel/debug/notifier-error-inject/pSeries-reconfig/
+
+         If the notifier call chain should be failed with some events
+         notified, write the error code to "actions/<notifier event>/error".
+
+         To compile this code as a module, choose M here: the module will
+         be called memory-notifier-error-inject.
+
+         If unsure, say N.
+
 config FAULT_INJECTION
        bool "Fault-injection framework"
        depends on DEBUG_KERNEL