rcu: Implement lockdep_rcu_enabled for !CONFIG_DEBUG_LOCK_ALLOC
Provide an implementation for debug_lockdep_rcu_enabled() when
CONFIG_DEBUG_LOCK_ALLOC is not enabled. This allows code to check
if rcu lockdep debugging is available without needing an extra
check if CONFIG_DEBUG_LOCK_ALLOC is enabled.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 08605ce..65178c4 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -340,6 +340,11 @@
return !preemptible();
}
+static inline int debug_lockdep_rcu_enabled(void)
+{
+ return 0;
+}
+
#endif /* #else #ifdef CONFIG_DEBUG_LOCK_ALLOC */
#ifdef CONFIG_PROVE_RCU
