From 093729f73bc4be4095adc1743ad25bdeac0d3633 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jaxboe@fusionio.com>
Date: Fri, 9 Jul 2010 13:47:32 +0200
Subject: [PATCH] Only flag sync_file_range() support for newer Linux versions

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 os/os-linux.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/os/os-linux.h b/os/os-linux.h
index b6ba569a..df0ec2db 100644
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -35,9 +35,12 @@
 #define FIO_HAVE_CL_SIZE
 #define FIO_HAVE_CGROUPS
 #define FIO_HAVE_FDATASYNC
-#define FIO_HAVE_SYNC_FILE_RANGE
 #define FIO_HAVE_FS_STAT
 
+#ifdef SYNC_FILE_RANGE_WAIT_BEFORE
+#define FIO_HAVE_SYNC_FILE_RANGE
+#endif
+
 #define OS_MAP_ANON		MAP_ANONYMOUS
 
 #ifndef CLOCK_MONOTONIC
-- 
2.25.1