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由 Kevin Wolf 提交于
If QEMU was configured with a driver in --block-drv-ro-whitelist, trying to use that driver read-write resulted in an error message even if auto-read-only=on was set. Consider auto-read-only=on for the whitelist checking and use it to automatically degrade to read-only for block drivers on the read-only whitelist. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
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