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由 David Sterba 提交于
Replace a WARN_ON with a proper check and message in case something goes really wrong and resumed balance cannot set up its exclusive status. The check is a user friendly assertion, I don't expect to ever happen under normal circumstances. Also document that the paused balance starts here and owns the exclusive op status. Reviewed-by: NAnand Jain <anand.jain@oracle.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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