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由 Jeff Cody 提交于
A few fixups for bdrv_append(): The new bs (bs_new) passed into bdrv_append() should be anonymous. Rather than call bdrv_make_anon() to enforce this, use an assert to catch when a caller is passing in a bs_new that is not anonymous. Also, the new top layer should have its backing_format reflect the original top's format. And last, after the swap of bs contents, the device_name will have been copied down. This needs to be cleared to reflect the anonymity of the bs that was pushed down. Signed-off-by: NJeff Cody <jcody@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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