Ilya Dryomov [off-list ref] wrote:

Same here...  I would suggest that you keep ceph_tcp_sendpage() function
and make only minimal modifications to avoid regressions.

This is now committed to net-next.  I can bring ceph_tcp_sendpage() back into
existence or fix it in place for now if you have a preference.

Note that I'm working on patches to rework the libceph transmission path so
that it isn't dealing with transmitting a single page at a time, but it's not
ready yet.

David