1 files changed, 17 insertions, 30 deletions

diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 0c30d0455de1..069af0276bf7 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -430,20 +430,7 @@ static struct stack_trace lockdep_init_trace = {
 /*
  * Various lockdep statistics:
  */
-atomic_t chain_lookup_hits;
-atomic_t chain_lookup_misses;
-atomic_t hardirqs_on_events;
-atomic_t hardirqs_off_events;
-atomic_t redundant_hardirqs_on;
-atomic_t redundant_hardirqs_off;
-atomic_t softirqs_on_events;
-atomic_t softirqs_off_events;
-atomic_t redundant_softirqs_on;
-atomic_t redundant_softirqs_off;
-atomic_t nr_unused_locks;
-atomic_t nr_cyclic_checks;
-atomic_t nr_find_usage_forwards_checks;
-atomic_t nr_find_usage_backwards_checks;
+DEFINE_PER_CPU(struct lockdep_stats, lockdep_stats);
 #endif
 
 /*
@@ -758,7 +745,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
                 return NULL;
         }
         class = lock_classes + nr_lock_classes++;
-        debug_atomic_inc(&nr_unused_locks);
+        debug_atomic_inc(nr_unused_locks);
         class->key = key;
         class->name = lock->name;
         class->subclass = subclass;
@@ -1215,7 +1202,7 @@ check_noncircular(struct lock_list *root, struct lock_class *target,
 {
         int result;
 
-        debug_atomic_inc(&nr_cyclic_checks);
+        debug_atomic_inc(nr_cyclic_checks);
 
         result = __bfs_forwards(root, target, class_equal, target_entry);
 
@@ -1252,7 +1239,7 @@ find_usage_forwards(struct lock_list *root, enum lock_usage_bit bit,
 {
         int result;
 
-        debug_atomic_inc(&nr_find_usage_forwards_checks);
+        debug_atomic_inc(nr_find_usage_forwards_checks);
 
         result = __bfs_forwards(root, (void *)bit, usage_match, target_entry);
 
@@ -1275,7 +1262,7 @@ find_usage_backwards(struct lock_list *root, enum lock_usage_bit bit,
 {
         int result;
 
-        debug_atomic_inc(&nr_find_usage_backwards_checks);
+        debug_atomic_inc(nr_find_usage_backwards_checks);
 
         result = __bfs_backwards(root, (void *)bit, usage_match, target_entry);
 
@@ -1835,7 +1822,7 @@ static inline int lookup_chain_cache(struct task_struct *curr,
         list_for_each_entry(chain, hash_head, entry) {
                 if (chain->chain_key == chain_key) {
 cache_hit:
-                        debug_atomic_inc(&chain_lookup_hits);
+                        debug_atomic_inc(chain_lookup_hits);
                         if (very_verbose(class))
                                 printk("\nhash chain already cached, key: "
                                         "%016Lx tail class: [%p] %s\n",
@@ -1900,7 +1887,7 @@ cache_hit:
                 chain_hlocks[chain->base + j] = class - lock_classes;
         }
         list_add_tail_rcu(&chain->entry, hash_head);
-        debug_atomic_inc(&chain_lookup_misses);
+        debug_atomic_inc(chain_lookup_misses);
         inc_chains();
 
         return 1;
@@ -2321,7 +2308,7 @@ void trace_hardirqs_on_caller(unsigned long ip)
                 return;
 
         if (unlikely(curr->hardirqs_enabled)) {
-                debug_atomic_inc(&redundant_hardirqs_on);
+                debug_atomic_inc(redundant_hardirqs_on);
                 return;
         }
         /* we'll do an OFF -> ON transition: */
@@ -2348,7 +2335,7 @@ void trace_hardirqs_on_caller(unsigned long ip)
 
         curr->hardirq_enable_ip = ip;
         curr->hardirq_enable_event = ++curr->irq_events;
-        debug_atomic_inc(&hardirqs_on_events);
+        debug_atomic_inc(hardirqs_on_events);
 }
 EXPORT_SYMBOL(trace_hardirqs_on_caller);
 
@@ -2380,9 +2367,9 @@ void trace_hardirqs_off_caller(unsigned long ip)
                 curr->hardirqs_enabled = 0;
                 curr->hardirq_disable_ip = ip;
                 curr->hardirq_disable_event = ++curr->irq_events;
-                debug_atomic_inc(&hardirqs_off_events);
+                debug_atomic_inc(hardirqs_off_events);
         } else
-                debug_atomic_inc(&redundant_hardirqs_off);
+                debug_atomic_inc(redundant_hardirqs_off);
 }
 EXPORT_SYMBOL(trace_hardirqs_off_caller);
 
@@ -2406,7 +2393,7 @@ void trace_softirqs_on(unsigned long ip)
                 return;
 
         if (curr->softirqs_enabled) {
-                debug_atomic_inc(&redundant_softirqs_on);
+                debug_atomic_inc(redundant_softirqs_on);
                 return;
         }
 
@@ -2416,7 +2403,7 @@ void trace_softirqs_on(unsigned long ip)
         curr->softirqs_enabled = 1;
         curr->softirq_enable_ip = ip;
         curr->softirq_enable_event = ++curr->irq_events;
-        debug_atomic_inc(&softirqs_on_events);
+        debug_atomic_inc(softirqs_on_events);
         /*
          * We are going to turn softirqs on, so set the
          * usage bit for all held locks, if hardirqs are
@@ -2446,10 +2433,10 @@ void trace_softirqs_off(unsigned long ip)
                 curr->softirqs_enabled = 0;
                 curr->softirq_disable_ip = ip;
                 curr->softirq_disable_event = ++curr->irq_events;
-                debug_atomic_inc(&softirqs_off_events);
+                debug_atomic_inc(softirqs_off_events);
                 DEBUG_LOCKS_WARN_ON(!softirq_count());
         } else
-                debug_atomic_inc(&redundant_softirqs_off);
+                debug_atomic_inc(redundant_softirqs_off);
 }
 
 static void __lockdep_trace_alloc(gfp_t gfp_mask, unsigned long flags)
@@ -2654,7 +2641,7 @@ static int mark_lock(struct task_struct *curr, struct held_lock *this,
                         return 0;
                 break;
         case LOCK_USED:
-                debug_atomic_dec(&nr_unused_locks);
+                debug_atomic_dec(nr_unused_locks);
                 break;
         default:
                 if (!debug_locks_off_graph_unlock())
@@ -2760,7 +2747,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
                 if (!class)
                         return 0;
         }
-        debug_atomic_inc((atomic_t *)&class->ops);
+        atomic_inc((atomic_t *)&class->ops);
         if (very_verbose(class)) {
                 printk("\nacquire class [%p] %s", class->key, class->name);
                 if (class->name_version > 1)