ceph/ceph — pull request #1633 by ukernel (2014-04-09 03:27:04+00:00)
Title: client: wake up umount waiter if receiving session open message

Wake up umount waiter if receiving session open message while
umounting. The umount waiter will re-close the session.

Fixes: #8004
Signed-off-by: Yan, Zheng