[Qemu-devel] [PATCH] qemu-iotests: Use cache=writeback in drive_add

[Fam Zheng]

This will allow running iotests on tmpfs, which is much faster, so we
can run more tests.

Signed-off-by: Fam Zheng <address@hidden>
---
 tests/qemu-iotests/iotests.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index fb10ff4..c29314a 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -96,7 +96,7 @@ class VM(object):
         '''Add a virtio-blk drive to the VM'''
         options = ['if=virtio',
                    'format=%s' % imgfmt,
-                   'cache=none',
+                   'cache=writeback',
                    'file=%s' % path,
                    'id=drive%d' % self._num_drives]
         if opts:
-- 
1.8.4.2