X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=os%2Fos.h;h=1569e409dd964c027b676227d44820e717165d2d;hb=c64646f09c291e22bf10584bd842003a7980eb78;hp=92b6950d305d077261633723b181f35e273b33ae;hpb=d9a7ba88af39b1047c9f8c077280932cd12cb58e;p=fio.git

diff --git a/os/os.h b/os/os.h
index 92b6950d..1569e409 100644
--- a/os/os.h
+++ b/os/os.h
@@ -102,6 +102,10 @@ typedef unsigned long os_cpu_mask_t;
 #define fio_lookup_raw(dev, majdev, mindev)	1
 #endif
 
+#ifndef FIO_PREFERRED_ENGINE
+#define FIO_PREFERRED_ENGINE	"sync"
+#endif
+
 #ifndef FIO_HAVE_BLKTRACE
 static inline int is_blktrace(const char *fname)
 {