From 42a3d5ea33ee3ec8fa12865c236f622cd1371535 Mon Sep 17 00:00:00 2001
From: Mathias Agopian <mathias@google.com>
Date: Wed, 28 Nov 2018 16:59:58 -0800
Subject: [PATCH] use utils::Mutex instead of std::mutex for Allocators locking
 policy

on Android it's about 2x faster and uses much less instructions, which
is better for i-cache pressure.
---
 libs/utils/include/utils/Allocator.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libs/utils/include/utils/Allocator.h b/libs/utils/include/utils/Allocator.h
index 4170076952..eb8400e57e 100644
--- a/libs/utils/include/utils/Allocator.h
+++ b/libs/utils/include/utils/Allocator.h
@@ -27,6 +27,7 @@
 
 #include <utils/compiler.h>
 #include <utils/memalign.h>
+#include <utils/Mutex.h>
 
 namespace utils {
 
@@ -468,7 +469,7 @@ private:
     }
 };
 
-using Mutex = std::mutex;
+using Mutex = utils::Mutex;
 
 } // namespace LockingPolicy