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

Pull locking updates from Ingo Molnar:
 "The biggest part of this tree is the new auto-generated atomics API
  wrappers by Mark Rutland.

  The primary motivation was to allow instrumentation without uglifying
  the primary source code.

  The linecount increase comes from adding the auto-generated files to
  the Git space as well:

    include/asm-generic/atomic-instrumented.h     | 1689 ++++++++++++++++--
    include/asm-generic/atomic-long.h             | 1174 ++++++++++---
    include/linux/atomic-fallback.h               | 2295 +++++++++++++++++++++++++
    include/linux/atomic.h                        | 1241 +------------

  I preferred this approach, so that the full call stack of the (already
  complex) locking APIs is still fully visible in 'git grep'.

  But if this is excessive we could certainly hide them.

  There's a separate build-time mechanism to determine whether the
  headers are out of date (they should never be stale if we do our job
  right).

  Anyway, nothing from this should be visible to regular kernel
  developers.

  Other changes:

   - Add support for dynamic keys, which removes a source of false
     positives in the workqueue code, among other things (Bart Van
     Assche)

   - Updates to tools/memory-model (Andrea Parri, Paul E. McKenney)

   - qspinlock, wake_q and lockdep micro-optimizations (Waiman Long)

   - misc other updates and enhancements"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (48 commits)
  locking/lockdep: Shrink struct lock_class_key
  locking/lockdep: Add module_param to enable consistency checks
  lockdep/lib/tests: Test dynamic key registration
  lockdep/lib/tests: Fix run_tests.sh
  kernel/workqueue: Use dynamic lockdep keys for workqueues
  locking/lockdep: Add support for dynamic keys
  locking/lockdep: Verify whether lock objects are small enough to be used as class keys
  locking/lockdep: Check data structure consistency
  locking/lockdep: Reuse lock chains that have been freed
  locking/lockdep: Fix a comment in add_chain_cache()
  locking/lockdep: Introduce lockdep_next_lockchain() and lock_chain_count()
  locking/lockdep: Reuse list entries that are no longer in use
  locking/lockdep: Free lock classes that are no longer in use
  locking/lockdep: Update two outdated comments
  locking/lockdep: Make it easy to detect whether or not inside a selftest
  locking/lockdep: Split lockdep_free_key_range() and lockdep_reset_lock()
  locking/lockdep: Initialize the locks_before and locks_after lists earlier
  locking/lockdep: Make zap_class() remove all matching lock order entries
  locking/lockdep: Reorder struct lock_class members
  locking/lockdep: Avoid that add_chain_cache() adds an invalid chain to the cache
  ...

1 files changed, 30 insertions, 30 deletions

diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h
index 3f9376f1c409..e6ea0f42e097 100644
--- a/arch/arm64/include/asm/cmpxchg.h
+++ b/arch/arm64/include/asm/cmpxchg.h
@@ -110,10 +110,10 @@ __XCHG_GEN(_mb)
 })
 
 /* xchg */
-#define xchg_relaxed(...)	__xchg_wrapper(    , __VA_ARGS__)
-#define xchg_acquire(...)	__xchg_wrapper(_acq, __VA_ARGS__)
-#define xchg_release(...)	__xchg_wrapper(_rel, __VA_ARGS__)
-#define xchg(...)		__xchg_wrapper( _mb, __VA_ARGS__)
+#define arch_xchg_relaxed(...)	__xchg_wrapper(    , __VA_ARGS__)
+#define arch_xchg_acquire(...)	__xchg_wrapper(_acq, __VA_ARGS__)
+#define arch_xchg_release(...)	__xchg_wrapper(_rel, __VA_ARGS__)
+#define arch_xchg(...)		__xchg_wrapper( _mb, __VA_ARGS__)
 
 #define __CMPXCHG_GEN(sfx)						\
 static inline unsigned long __cmpxchg##sfx(volatile void *ptr,		\
@@ -154,18 +154,18 @@ __CMPXCHG_GEN(_mb)
 })
 
 /* cmpxchg */
-#define cmpxchg_relaxed(...)	__cmpxchg_wrapper(    , __VA_ARGS__)
-#define cmpxchg_acquire(...)	__cmpxchg_wrapper(_acq, __VA_ARGS__)
-#define cmpxchg_release(...)	__cmpxchg_wrapper(_rel, __VA_ARGS__)
-#define cmpxchg(...)		__cmpxchg_wrapper( _mb, __VA_ARGS__)
-#define cmpxchg_local		cmpxchg_relaxed
+#define arch_cmpxchg_relaxed(...)	__cmpxchg_wrapper(    , __VA_ARGS__)
+#define arch_cmpxchg_acquire(...)	__cmpxchg_wrapper(_acq, __VA_ARGS__)
+#define arch_cmpxchg_release(...)	__cmpxchg_wrapper(_rel, __VA_ARGS__)
+#define arch_cmpxchg(...)		__cmpxchg_wrapper( _mb, __VA_ARGS__)
+#define arch_cmpxchg_local		arch_cmpxchg_relaxed
 
 /* cmpxchg64 */
-#define cmpxchg64_relaxed	cmpxchg_relaxed
-#define cmpxchg64_acquire	cmpxchg_acquire
-#define cmpxchg64_release	cmpxchg_release
-#define cmpxchg64		cmpxchg
-#define cmpxchg64_local		cmpxchg_local
+#define arch_cmpxchg64_relaxed		arch_cmpxchg_relaxed
+#define arch_cmpxchg64_acquire		arch_cmpxchg_acquire
+#define arch_cmpxchg64_release		arch_cmpxchg_release
+#define arch_cmpxchg64			arch_cmpxchg
+#define arch_cmpxchg64_local		arch_cmpxchg_local
 
 /* cmpxchg_double */
 #define system_has_cmpxchg_double()     1
@@ -177,24 +177,24 @@ __CMPXCHG_GEN(_mb)
 	VM_BUG_ON((unsigned long *)(ptr2) - (unsigned long *)(ptr1) != 1);	\
 })
 
-#define cmpxchg_double(ptr1, ptr2, o1, o2, n1, n2) \
-({\
-	int __ret;\
-	__cmpxchg_double_check(ptr1, ptr2); \
-	__ret = !__cmpxchg_double_mb((unsigned long)(o1), (unsigned long)(o2), \
-				     (unsigned long)(n1), (unsigned long)(n2), \
-				     ptr1); \
-	__ret; \
+#define arch_cmpxchg_double(ptr1, ptr2, o1, o2, n1, n2)				\
+({										\
+	int __ret;								\
+	__cmpxchg_double_check(ptr1, ptr2);					\
+	__ret = !__cmpxchg_double_mb((unsigned long)(o1), (unsigned long)(o2),	\
+				     (unsigned long)(n1), (unsigned long)(n2),	\
+				     ptr1);					\
+	__ret;									\
 })
 
-#define cmpxchg_double_local(ptr1, ptr2, o1, o2, n1, n2) \
-({\
-	int __ret;\
-	__cmpxchg_double_check(ptr1, ptr2); \
-	__ret = !__cmpxchg_double((unsigned long)(o1), (unsigned long)(o2), \
-				  (unsigned long)(n1), (unsigned long)(n2), \
-				  ptr1); \
-	__ret; \
+#define arch_cmpxchg_double_local(ptr1, ptr2, o1, o2, n1, n2)			\
+({										\
+	int __ret;								\
+	__cmpxchg_double_check(ptr1, ptr2);					\
+	__ret = !__cmpxchg_double((unsigned long)(o1), (unsigned long)(o2),	\
+				  (unsigned long)(n1), (unsigned long)(n2),	\
+				  ptr1);					\
+	__ret;									\
 })
 
 #define __CMPWAIT_CASE(w, sfx, sz)					\