ceph/ceph — pull request #1579 by liewegas (2014-04-01 21:28:56+00:00)
Title: osd/ReplicatedPG: mark_unrollbackable when _rollback_to head

We fell into the case in _rollback_to where we just set ctx->modify = true
and don't explicitly mark the ctx and unrollbackable. Later, we screw up in
proc_replica_log as a result because we think we can rollback this update to
the head when in reality we cannot.

Fixes: #7907 Signed-off-by: Sage Weil