ceph/ceph — pull request #926 by yuyuyu101 (2013-12-10 07:40:31+00:00)
Title: Move PerfCounter from ObjectStore.h to FileStore.h

The anonymous enum which used by FileStore as PerfCounter is only can be
used by FileStore, so we need to drive out ObjectStore.h

Signed-off-by: Haomai Wang