On Thu, May 17, 2018 at 05:22:14PM -0700, Long Li wrote: > From: Long Li <lon...@microsoft.com> > > When cache=rdma is enabled on mount options, CIFS do not allocate internal > data > buffer pages for I/O, data is read/writen directly to user memory via RDMA.
I don't think this should be an option. For direct I/O without signing or encryption CIFS should always use get_user_pages, with or without RDMA.