iotests: Test unaligned raw images with O_DIRECT

[qemu.git] / tests / qemu-iotests / 221

diff --git a/tests/qemu-iotests/221 b/tests/qemu-iotests/221
index 25dd47bcfe440cf85c0ce82cc860d56df61ea296..0e9096fec75155dd3e81f96f65b678fe3c2d5360 100755 (executable)
--- a/tests/qemu-iotests/221
+++ b/tests/qemu-iotests/221
@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 #
 # Test qemu-img vs. unaligned images
+# (See also 253, which is the O_DIRECT version)
 #
 # Copyright (C) 2018-2019 Red Hat, Inc.
 #
@@ -37,6 +38,9 @@ _supported_fmt raw
 _supported_proto file
 _supported_os Linux
 
+_default_cache_mode writeback
+_supported_cache_modes writeback writethrough unsafe
+
 echo
 echo "=== Check mapping of unaligned raw image ==="
 echo