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由 Max Reitz 提交于
qemu-img amend may extensively modify the target image, depending on the options to be amended (e.g. conversion to qcow2 compat level 0.10 from 1.1 for an image with many unallocated zero clusters). Therefore it makes sense to allow the user to specify the cache mode to be used. Signed-off-by: NMax Reitz <mreitz@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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