[Qemu-devel] [PATCH] iotests: fix 254 for qcow (1)

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

Qcow default cluster size is 4k, but default format of created overlay
image on snapshot operation is qcow2 with it's default cluster of 64k.

This leads to block-dirty-bitmap-merge fail when test run for qcow
format, as it can't merge bitmaps with different granularities.
Let's fix it by specifying strict granularity.

Reported-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 tests/qemu-iotests/254     | 5 +++--
 tests/qemu-iotests/254.out | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/tests/qemu-iotests/254 b/tests/qemu-iotests/254
index 33cb80a512..a8ea5818ff 100755
--- a/tests/qemu-iotests/254
+++ b/tests/qemu-iotests/254
@@ -29,7 +29,8 @@ qemu_img_create('-f', iotests.imgfmt, disk, str(size))
 vm = iotests.VM().add_drive(disk, opts='node-name=base')
 vm.launch()
 
-vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap0')
+vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap0',
+           granularity=65536)
 
 vm.hmp_qemu_io('drive0', 'write 0 512K')
 
@@ -38,7 +39,7 @@ vm.qmp_log('transaction', indent=2, actions=[
      'data': {'device': 'drive0', 'snapshot-file': top,
               'snapshot-node-name': 'snap'}},
     {'type': 'block-dirty-bitmap-add',
-     'data': {'node': 'snap', 'name': 'bitmap0'}},
+     'data': {'node': 'snap', 'name': 'bitmap0', 'granularity': 65536}},
     {'type': 'block-dirty-bitmap-merge',
      'data': {'node': 'snap', 'target': 'bitmap0',
               'bitmaps': [{'node': 'base', 'name': 'bitmap0'}]}}
diff --git a/tests/qemu-iotests/254.out b/tests/qemu-iotests/254.out
index d7394cf002..dc899016da 100644
--- a/tests/qemu-iotests/254.out
+++ b/tests/qemu-iotests/254.out
@@ -1,4 +1,4 @@
-{"execute": "block-dirty-bitmap-add", "arguments": {"name": "bitmap0", "node": "drive0"}}
+{"execute": "block-dirty-bitmap-add", "arguments": {"granularity": 65536, "name": "bitmap0", "node": "drive0"}}
 {"return": {}}
 {
   "execute": "transaction",
@@ -14,6 +14,7 @@
       },
       {
         "data": {
+          "granularity": 65536,
           "name": "bitmap0",
           "node": "snap"
         },
-- 
2.18.0