MDS: make standby_trim_segments functional. Hurray, hot standbys work!
MDS: make standby_trim_segments functional. Hurray, hot standbys work!

Signed-off-by: Greg Farnum <7c97bbd3e62ab6303ee1daebcbc2d9d58823df1a@hq.newdream.net>

ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph