From dd5acf2c0dcad07cecfe380f40f7c25a6b032290 Mon Sep 17 00:00:00 2001
From: John Sully <john@csquare.ca>
Date: Thu, 28 Nov 2019 14:26:43 -0500
Subject: [PATCH] Fastlock should yield in ARM

Former-commit-id: 6c65a11b8d841517f372ea9962b8dbc127390943
---
 src/fastlock.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/fastlock.cpp b/src/fastlock.cpp
index 4a64b20fc..4c942cbf9 100644
--- a/src/fastlock.cpp
+++ b/src/fastlock.cpp
@@ -289,7 +289,9 @@ extern "C" void fastlock_lock(struct fastlock *lock)
             break;
 
 #if defined(__i386__) || defined(__amd64__)
-        __asm__ ("pause");
+        __asm__ __volatile__ ("pause");
+#elif defined(__arm__)
+        __asm__ __volatile__ ("yield");
 #endif
         if ((++cloops % 1024*1024) == 0)
         {