ceph/ceph — pull request #2404 by ukernel (2014-09-05 14:21:35+00:00)
Title: osdc/Journaler: fix try_read_entry()/wait_for_readable() locking

These two functions should be protected by the Journal::mutex. Furthermore,
wait_for_readable() is racy. The journal may has already become readable
when it is called.

Signed-off-by: Yan, Zheng