[Qemu-devel] [PATCH v2] qemu-iotests: Handle cache mode option in 091

[Fam Zheng <famz@redhat.com>]

We should allow testing this on tmpfs. Any cache setting in iotests
should try to obey $CACHEMODE.

The cache mode is still "none" by default but overridable

Signed-off-by: Fam Zheng <famz@redhat.com>

---
v2: Add _default_cache_mode and _supported_cache_modes. (Kevin)
---
 tests/qemu-iotests/091 | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/qemu-iotests/091 b/tests/qemu-iotests/091
index 384b3ac..32bbd56 100755
--- a/tests/qemu-iotests/091
+++ b/tests/qemu-iotests/091
@@ -47,6 +47,8 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 _supported_fmt qcow2
 _supported_proto file
 _supported_os Linux
+_default_cache_mode "none"
+_supported_cache_modes "writethrough" "none" "writeback"
 
 size=1G
 
@@ -59,13 +61,13 @@ echo === Starting QEMU VM1 ===
 echo
 
 qemu_comm_method="monitor"
-_launch_qemu -drive file="${TEST_IMG}",cache=none,id=disk
+_launch_qemu -drive file="${TEST_IMG}",cache=${CACHEMODE},id=disk
 h1=$QEMU_HANDLE
 
 echo
 echo === Starting QEMU VM2 ===
 echo
-_launch_qemu -drive file="${TEST_IMG}",cache=none,id=disk \
+_launch_qemu -drive file="${TEST_IMG}",cache=${CACHEMODE},id=disk \
              -incoming "exec: cat '${MIG_FIFO}'"
 h2=$QEMU_HANDLE
 
-- 
1.9.2