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  • Andreas Klebinger's avatar
    STM: Be more optimistic when validating in-flight transactions. · 917ef81b
    Andreas Klebinger authored and Marge Bot's avatar Marge Bot committed
    * Don't lock tvars when performing non-committal validation.
    * If we encounter a locked tvar don't consider it a failure.
    
    This means in-flight validation will only fail if committing at the
    moment of validation is *guaranteed* to fail.
    
    This prevents in-flight validation from failing spuriously if it happens in
    parallel on multiple threads or parallel to thread comitting.
    917ef81b