isin query

[nayan sharma]

Dataframe (df) having column msrid(String) having values 
m_123,m_111,m_145,m_098,m_666

I wanted to filter out rows which are having values m_123,m_111,m_145

df.filter($"msrid".isin("m_123","m_111","m_145")).count 
count =0
while 
df.filter($"msrid".isin("m_123")).count 
count=121212
I have tried using queries like 
df.filter($"msrid" isin (List("m_123","m_111","m_145"):_*))
count =0
but 

df.filter($"msrid" isin (List("m_123"):_*))
count=121212

Any suggestion will do a great help to me.

Thanks,
Nayan