
Since qcow2 metadata is cached we need to flush the caches, not just the underlying file. Use bdrv_flush(bs) instead of bdrv_flush(bs->file). Also add the error return path when bdrv_flush() fails and move the flush after checking for qcow2_alloc_clusters() failure so that the qcow2_alloc_clusters() error return value takes precedence. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Read the documentation in qemu-doc.html or on http://wiki.qemu.org - QEMU team
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