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由 Peter Krempa 提交于
Blockdev is required to do incremental backups properly. Add a helper function for locking out capabilities and export it to allow re-doing the processing if a different code path modifies capabilities. Signed-off-by: NPeter Krempa <pkrempa@redhat.com> Reviewed-by: NCole Robinson <crobinso@redhat.com>
be1a2015