Description of problem: Adding support for futimens() fuction in gluster code base. Gluster already has support for utimes but which is path based and ctime,mtime stored in micro seconds, where futimes have capability of storing those values in nanon second and it is fd based. Version-Release number of selected component (if applicable): mainline
REVIEW: http://review.gluster.org/15360 (poisx : add support for futimens in setattr call) posted (#1) for review on master by jiffin tony Thottan (jthottan)
https://review.gluster.org/#/c/glusterfs/+/14815/ (fixes this)