Merge branch 'locking-urgent-for-linus.patch' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull rtmutex fixes from Thomas Gleixner:
 "Another three patches to make the rtmutex code more robust.  That's
  the last urgent fallout from the big futex/rtmutex investigation"

* 'locking-urgent-for-linus.patch' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rtmutex: Plug slow unlock race
  rtmutex: Detect changes in the pi lock chain
  rtmutex: Handle deadlock detection smarter

1 files changed, 5 insertions, 0 deletions

diff --git a/kernel/locking/rtmutex.h b/kernel/locking/rtmutex.h
index a1a1dd06421d..f6a1f3c133b1 100644
--- a/kernel/locking/rtmutex.h
+++ b/kernel/locking/rtmutex.h
@@ -24,3 +24,8 @@
 #define debug_rt_mutex_print_deadlock(w)                do { } while (0)
 #define debug_rt_mutex_detect_deadlock(w,d)             (d)
 #define debug_rt_mutex_reset_waiter(w)                  do { } while (0)
+
+static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w)
+{
+        WARN(1, "rtmutex deadlock detected\n");
+}