1 files changed, 13 insertions, 1 deletions

diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 592c576d77a7..7065a687ac54 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -2228,6 +2228,10 @@ out_calc_hash:
 
         curr->lockdep_depth++;
         check_chain_key(curr);
+#ifdef CONFIG_DEBUG_LOCKDEP
+        if (unlikely(!debug_locks))
+                return 0;
+#endif
         if (unlikely(curr->lockdep_depth >= MAX_LOCK_DEPTH)) {
                 debug_locks_off();
                 printk("BUG: MAX_LOCK_DEPTH too low!\n");
@@ -2598,7 +2602,7 @@ out_restore:
         raw_local_irq_restore(flags);
 }
 
-void __init lockdep_init(void)
+void lockdep_init(void)
 {
         int i;
 
@@ -2738,6 +2742,10 @@ void debug_show_all_locks(void)
         int count = 10;
         int unlock = 1;
 
+        if (unlikely(!debug_locks)) {
+                printk("INFO: lockdep is turned off.\n");
+                return;
+        }
         printk("\nShowing all locks held in the system:\n");
 
         /*
@@ -2781,6 +2789,10 @@ EXPORT_SYMBOL_GPL(debug_show_all_locks);
 
 void debug_show_held_locks(struct task_struct *task)
 {
+        if (unlikely(!debug_locks)) {
+                printk("INFO: lockdep is turned off.\n");
+                return;
+        }
         lockdep_print_held_locks(task);
 }