This is a defensive fix to prevent a crash reported during a rename operation. This is not reproducible under normal circumstances. This patch also moves ctr-messages.h to the src dir of the changetimerecorder xlator. Change-Id: I46eb926d67bf4c19387c8b26e354c635a5fb284c BUG: 1358196 Signed-off-by: N Balachandran <nbalacha@redhat.com> Reviewed-on: http://review.gluster.org/14964 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Tested-by: Zhou Zhengping <johnzzpcrystal@gmail.com> Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Vijay Bellur <vbellur@redhat.com>