From 710da702beb0dc4aeeab1b9e712cd9473b083a89 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Mon, 10 Jan 2011 12:33:02 +0100
Subject: [PATCH] qemu-img snapshot: Use writeback caching

None of the other qemu-img subcommands uses writethrough, and there's no reason
why snapshot should be special.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
---
 qemu-img.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qemu-img.c b/qemu-img.c
index afd9ed2e0e..1e65ea82d6 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1068,7 +1068,7 @@ static int img_snapshot(int argc, char **argv)
     int action = 0;
     qemu_timeval tv;
 
-    bdrv_oflags = BDRV_O_RDWR;
+    bdrv_oflags = BDRV_O_FLAGS | BDRV_O_RDWR;
     /* Parse commandline parameters */
     for(;;) {
         c = getopt(argc, argv, "la:c:d:h");