diff --git a/base/include/android-base/thread_annotations.h b/base/include/android-base/thread_annotations.h
index 2422102..fbb5923 100644
--- a/base/include/android-base/thread_annotations.h
+++ b/base/include/android-base/thread_annotations.h
@@ -29,6 +29,9 @@
 #define SCOPED_CAPABILITY \
       THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable)
 
+#define SHARED_CAPABILITY(...) \
+      THREAD_ANNOTATION_ATTRIBUTE__(shared_capability(__VA_ARGS__))
+
 #define GUARDED_BY(x) \
       THREAD_ANNOTATION_ATTRIBUTE__(guarded_by(x))
 
@@ -77,6 +80,27 @@
 #define RETURN_CAPABILITY(x) \
       THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x))
 
+#define EXCLUSIVE_LOCK_FUNCTION(...) \
+      THREAD_ANNOTATION_ATTRIBUTE__(exclusive_lock_function(__VA_ARGS__))
+
+#define EXCLUSIVE_TRYLOCK_FUNCTION(...) \
+      THREAD_ANNOTATION_ATTRIBUTE__(exclusive_trylock_function(__VA_ARGS__))
+
+#define SHARED_LOCK_FUNCTION(...) \
+      THREAD_ANNOTATION_ATTRIBUTE__(shared_lock_function(__VA_ARGS__))
+
+#define SHARED_TRYLOCK_FUNCTION(...) \
+      THREAD_ANNOTATION_ATTRIBUTE__(shared_trylock_function(__VA_ARGS__))
+
+#define UNLOCK_FUNCTION(...) \
+      THREAD_ANNOTATION_ATTRIBUTE__(unlock_function(__VA_ARGS__))
+
+#define SCOPED_LOCKABLE \
+      THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable)
+
+#define LOCK_RETURNED(x) \
+      THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x))
+
 #define NO_THREAD_SAFETY_ANALYSIS \
       THREAD_ANNOTATION_ATTRIBUTE__(no_thread_safety_analysis)
 
diff --git a/base/include/android-base/unique_fd.h b/base/include/android-base/unique_fd.h
index 869e60f..c323311 100644
--- a/base/include/android-base/unique_fd.h
+++ b/base/include/android-base/unique_fd.h
@@ -95,4 +95,14 @@
 }  // namespace base
 }  // namespace android
 
+template <typename T>
+int close(const android::base::unique_fd_impl<T>&)
+#if defined(__clang__)
+  __attribute__((__unavailable__(
+#else
+  __attribute__((__error__(
+#endif
+    "close called on unique_fd"
+  )));
+
 #endif  // ANDROID_BASE_UNIQUE_FD_H
diff --git a/init/readme.txt b/init/readme.txt
index 4c04f17..56918f6 100644
--- a/init/readme.txt
+++ b/init/readme.txt
@@ -188,6 +188,10 @@
   Scheduling priority of the service process. This value has to be in range
   -20 to 19. Default priority is 0. Priority is set via setpriority().
 
+namespace <pid|mnt>
+  Enter a new PID or mount namespace when forking the service.
+
+
 Triggers
 --------
 Triggers are strings which can be used to match certain kinds of