FileStore: die if we get an ENOENT on a clone
FileStore: die if we get an ENOENT on a clone

During recovery, ignoring this would allow a bug in the osd to
erroneously mark the pg clean with incorrectly recovered objects.

Signed-off-by: Samuel Just <4c46b94684b338bae1ed5e7e1321718dd75401cc@dreamhost.com>

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