Ansible role: ceph-defaults
Documentation is available at http://docs.ceph.com/ceph-ansible/.
* The default value of osd_memory_target used by ceph is 4294967296 bytes,
so use the same as ceph-ansible default.
* Convert ansible_memtotal_mb to bytes to calculate osd_memory_target
Signed-off-by:
Neha Ojha <nojha@redhat.com>