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Stefan Hajnoczi 89d22bc306 qemu-iotests: add sub-cluster allocating write test for sparse image formats Image formats that grow the image file on demand and are organized into clusters must handle sub-cluster allocating writes. Such writes touch a portion of a previously unallocated data cluster. After the image file is grown with the written data, reads of that cluster should work as expected: 1. Sectors before the written region are zero. 2. The written region is present and the data is uncorrupted. 3. Sectors after the written region are zero. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de>	2012-02-22 16:17:03 +01:00
tests/qemu-iotests	qemu-iotests: add sub-cluster allocating write test for sparse image formats	2012-02-22 16:17:03 +01:00

Stefan Hajnoczi 89d22bc306 qemu-iotests: add sub-cluster allocating write test for sparse image formats

Image formats that grow the image file on demand and are organized into
clusters must handle sub-cluster allocating writes.  Such writes touch
a portion of a previously unallocated data cluster.  After the image
file is grown with the written data, reads of that cluster should work
as expected:

1. Sectors before the written region are zero.
2. The written region is present and the data is uncorrupted.
3. Sectors after the written region are zero.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

2012-02-22 16:17:03 +01:00

tests/qemu-iotests

qemu-iotests: add sub-cluster allocating write test for sparse image formats

2012-02-22 16:17:03 +01:00