[PATCH] peterz

[Chris Wilson]

---
 kernel/locking/lockdep.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index e4f0d8d7ff42..296bdd218317 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -4411,7 +4411,9 @@ static int mark_lock(struct task_struct *curr, struct held_lock *this,
 		break;
 
 	case LOCK_USED:
-		debug_atomic_dec(nr_unused_locks);
+	case LOCK_USED_READ:
+		if ((hlock_class(this)->usage_mask & (LOCKF_USED|LOCKF_USED_READ)) == new_mask)
+			debug_atomic_dec(nr_unused_locks);
 		break;
 
 	default:
-- 
2.20.1