How to force redirector to Cache Data

Althougth I have added the FILE_READ_DATA to the desired access,sometimes I cann’t have paging io or no cache io in my file system filter .I heard of the byte range lock method.but how can i implement this method? And Have any better method?

You cannot control RDR’s caching policy as a general rule because it is
interacting with the rules established by the server (and impacted by
other clients accessing the file.) The only thing you can do is employ
a byte range lock to break three of four types of oplocks .