XFS vs Ext4 redux -- preferences/warnings/etc

I'm planning an install/migration of 12.2 on OEL7, no ASM. So, should I use XFS or Ext4? Underlying storage will be flash-based traditional SAN. MOS 236826.1 says to use "any filesystem that is supported by the Linux vendor". MOS 1632127.1 says "Beginning with Oracle Linux 7, XFS is the default file system and is included with Basic and Premier Support subscriptions, at no additional charge."

I've had my OEM 13c server using XFS for 18 months without a hiccup, but the repo DB is about 30x smaller than our ERP DB, with way fewer transactions, etc.

Anyone have any experiences with XFS or Ext4 on OEL7 that would make them choose one over the other?

Thanks,
Rich

--
http://www.freelists.org/webpage/oracle-l