2005 prius engine oil overfill

Hi all, i have a 2005 gen 2 prius which recently did a engine oil change. I saw the mechanic poured the entire 4 litres bottle of totachi 5w-30 engine oil and I felt something was wrong. When i arrived home, i checked the dip stick reading and it was around 2cm above full mark. I've searched for existing thread but some said there were severe problems and had to change the ICE, and some said no issues. Car is driven in a southeast asia country, can someone advise what i should do now? Really worried because it's my daily workhorse. Car is originally from the US, have been driven for 8 years in southeast asia with no major engine problems/change. Thanks in advance.