This series eliminates most uses of the ctl_mutex for locking. Its precise purpose was always a little fuzzy to me; with this series in place it is now only used to protect looking up ceph clients. It also eliminates some lockdep problems reported at unmap time. -Alex [PATCH 1/5] rbd: set removing flag while holding list lock [PATCH 2/5] rbd: protect against concurrent unmaps [PATCH 3/5] rbd: don't hold ctl_mutex to get/put device [PATCH 4/5] rbd: use rwsem to protect header updates [PATCH 5/5] rbd: take a little credit -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
