Updated openstack/openstack
Project: openstack/cinder  bcbca12c245645bfc5b24c848a474cc23438b6a5
null
Brick support for pNFS

This change implements a retry mechanism
during mounting nfs share. It tries mounting
using pnfs if no specific nfs version is specified
in the nfs options. In case of any failure during mounting
it falls back to regular nfs mount which will internally
try to mount with highest supported version. If nfs version
is specified in options then regular mount will be allowed.

Change-Id: I502b375548707ce7021cbacf1cd4f5532804aeb3
Implements: blueprint pnfs
Updated openstack/openstack
Project: openstack/nova  33d7963d6a5984f5e4a3bcb12d3bdb23c76dfd17
null
Make exception message more friendly

Exceptions that get returned via REST api
should have more user friendly message,
users shouldn't have to know backend concept.
more detail,see bug.

Change-Id: Idc20680e46c36fa3441838177ce61b6f5e1d2979
Closes-Bug: #1263204