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-rw-r--r--include/linux/rcupdate.h5
-rw-r--r--kernel/rcupdate.c7
2 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 9f1ddfef84b5..07db2feb8572 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -101,10 +101,7 @@ extern struct lockdep_map rcu_sched_lock_map;
101# define rcu_read_release_sched() \ 101# define rcu_read_release_sched() \
102 lock_release(&rcu_sched_lock_map, 1, _THIS_IP_) 102 lock_release(&rcu_sched_lock_map, 1, _THIS_IP_)
103 103
104static inline int debug_lockdep_rcu_enabled(void) 104extern int debug_lockdep_rcu_enabled(void);
105{
106 return likely(rcu_scheduler_active && debug_locks);
107}
108 105
109/** 106/**
110 * rcu_read_lock_held - might we be in RCU read-side critical section? 107 * rcu_read_lock_held - might we be in RCU read-side critical section?
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 63fe25433980..03a7ea1579f6 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -69,6 +69,13 @@ EXPORT_SYMBOL_GPL(rcu_scheduler_active);
69 69
70#ifdef CONFIG_DEBUG_LOCK_ALLOC 70#ifdef CONFIG_DEBUG_LOCK_ALLOC
71 71
72int debug_lockdep_rcu_enabled(void)
73{
74 return rcu_scheduler_active && debug_locks &&
75 current->lockdep_recursion == 0;
76}
77EXPORT_SYMBOL_GPL(debug_lockdep_rcu_enabled);
78
72/** 79/**
73 * rcu_read_lock_bh_held - might we be in RCU-bh read-side critical section? 80 * rcu_read_lock_bh_held - might we be in RCU-bh read-side critical section?
74 * 81 *