ceph/ceph — pull request #679 by ukernel (2013-10-02 04:02:21+00:00)
Title: mds: return -EAGAIN if standby replay falls behind

standby replay may fall behind and get -ENOENT when reading the
journal. return -EAGAIN in this case, it makes the MDS respawn itself.

fixes: #5458

Signed-off-by: Yan, Zheng