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由 Kevin Wolf 提交于
The only semantic change is that bs->open_flags gets BDRV_O_PROTOCOL set now. This isn't useful, but it doesn't hurt either. The code that was previously skipped by 'goto done' is automatically disabled because protocol drivers don't support backing files (and if they did, this would probably be a fix) and can't have snapshot_flags set. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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