Merge commit 'tracing/core' into tracing/kprobes

Conflicts:
	kernel/trace/trace_export.c
	kernel/trace/trace_kprobe.c

Merge reason: This topic branch lacks an important
build fix in tracing/core:

	0dd7b74787eaf7858c6c573353a83c3e2766e674:
	tracing: Fix double CPP substitution in TRACE_EVENT_FN

that prevents from multiple tracepoint headers inclusion crashes.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/mm/slub.c b/mm/slub.c
index b9f1491a58a1..b6276753626e 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2594,8 +2594,6 @@ static inline int kmem_cache_close(struct kmem_cache *s)
  */
 void kmem_cache_destroy(struct kmem_cache *s)
 {
-        if (s->flags & SLAB_DESTROY_BY_RCU)
-                rcu_barrier();
         down_write(&slub_lock);
         s->refcount--;
         if (!s->refcount) {
@@ -2606,6 +2604,8 @@ void kmem_cache_destroy(struct kmem_cache *s)
                                 "still has objects.\n", s->name, __func__);
                         dump_stack();
                 }
+                if (s->flags & SLAB_DESTROY_BY_RCU)
+                        rcu_barrier();
                 sysfs_slab_remove(s);
         } else
                 up_write(&slub_lock);