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[qemu-xen staging] iotests/197: Fix for compat=0.10



commit 1855536256eb0a5708b04b85f744de69559ea323
Author:     Max Reitz <mreitz@xxxxxxxxxx>
AuthorDate: Mon Jul 27 15:52:37 2020 +0200
Commit:     Max Reitz <mreitz@xxxxxxxxxx>
CommitDate: Mon Jul 27 16:35:17 2020 +0200

    iotests/197: Fix for compat=0.10
    
    Writing zeroes to a qcow2 v2 images without a backing file results in an
    unallocated cluster as of 61b3043965.  197 has a test for COR-ing a
    cluster on an image without a backing file, which means that the data
    will be zero, so now on a v2 image that cluster will just stay
    unallocated, and so the test fails.  Just force compat=1.1 for that
    particular case to enforce the cluster to get allocated.
    
    Fixes: 61b3043965fe3552ee2684a97e7cc809ca7a71b3
    Signed-off-by: Max Reitz <mreitz@xxxxxxxxxx>
    Message-Id: <20200727135237.1096841-1-mreitz@xxxxxxxxxx>
    Reviewed-by: Eric Blake <eblake@xxxxxxxxxx>
---
 tests/qemu-iotests/197 | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/197 b/tests/qemu-iotests/197
index 95f05b0e34..121959a09c 100755
--- a/tests/qemu-iotests/197
+++ b/tests/qemu-iotests/197
@@ -112,7 +112,9 @@ echo
 echo '=== Partial final cluster ==='
 echo
 
-_make_test_img 1024
+# Force compat=1.1, because writing zeroes on a v2 image without a
+# backing file would just result in an unallocated cluster
+_make_test_img -o compat=1.1 1024
 $QEMU_IO -f $IMGFMT -C -c 'read 0 1024' "$TEST_IMG" | _filter_qemu_io
 $QEMU_IO -f $IMGFMT -c map "$TEST_IMG"
 _check_test_img
--
generated by git-patchbot for /home/xen/git/qemu-xen.git#staging



 


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