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由 Max Reitz 提交于
We can be less restrictive about pure data children than those with metadata on them, so let bdrv_default_perms_for_storage() handle metadata children differently from pure data children. As explained in the code, the restrictions on metadata children are strictly stricter than those for pure data children, so in theory we just have to distinguish between pure-data and all other storage children (pure metadata or data+metadata). In practice, that is not obvious, though, so we have two independent code paths for metadata and for data children, and data+metadata children will go through both (without the path for data children doing anything meaningful). Signed-off-by: NMax Reitz <mreitz@redhat.com> Message-Id: <20200513110544.176672-19-mreitz@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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