NetApp NFS: Do not reference dst_img_local before assignment

This patch moves the assignment of the dst_img_local variable to before the
try/finally block that references it so that the finally block will have this
variable no matter where in the try block an error is raised.

Change-Id: Iab48b46559f18a3d6b044abe4bc3e615e7fee075
Closes-Bug: 1309047
Add exception handling for copy_volume_to_image()

The method require_driver_initialized occurs exception so that the
method volume_get will be not executed, and the variable 'volume'
will be not defined. In the "finally" code segment, the
volume['instance_uuid'] will get the UnboundLocalError, this patch
gets volume before require_driver_initialized to avoid the above
problem.

Change-Id: Ic8167383eb67c5016c9853da274455e0f202dc4d
Closes-Bug: #1322958
NetApp fix eseries concurrent vol map failure

This fixes the issue while mapping volume to host
when the requests are very close in time proximity.
The map operation has been synchronized.

Change-Id: I2e120d84d3b96faa4ab8d4324e70a089bcddeaa5
Closes-bug: #1312685
Use error instead of warning to log mount exc

Gluster's driver uses warning to log mount exceptions. This patch
replaces that warning with an error message.

Change-Id: I54a10ec8abf460ca9ff7bb009b8d702cfad0fed0
Closes-Bug: #1317573
Ensure metadata is saved before updating volume status

This patch ensures the volume metadata is saved to
the snapshot metadata before updating the status
of the snapshot to be available.

Change-Id: Iada010520dc3c086fcd410a6c7fd152cf4a31561
Closes-Bug: #1310991
Handle volumes no longer existing in resume delete

init_host resumes deletes for volumes with a status of 'deleting'. It
does these sequentially, and sometimes a volume could be deleted under
it, causing a bad stacktrace. This will gracefully handle those
situations and move on. Added coverage for resume volume delete being
successful as well.

Change-Id: I5b30265609b65804f2da77d9daa84b640de7939c
Closes-Bug: #1322340
Add support for z/VM driver.

Add 'FCP' into connection_info in initialize_connection
in order to support IBM z/VM hypervisors. This change only
because z/VM need FCP(fibre channel port) info while other
platform don't need it. It will not have side effect
to other platforms since they can safely ignore it.

Change-Id: Ib2d72969608a84a7a200b96da3eefb3ccc13a096
Closes-Bug: #1323993
Merge "Ensure metadata is saved before updating volume status"
Merge "Use error instead of warning to log mount exc"
Fix a message format error in migration cleanup

In some situations, the volume migration failed. After the cleanup
begin, code was trying to format a string value as an int,
this caused "copy_error = True" not being invoked, resulted
in UnboundLocalError exception.

Change-Id: I445394cc06fe221804901e8014d60e870f0fe2f7
Closes-Bug: #1290317
Update cinder.conf

This is mostly just a sanity check, we're revmoving
this whole check from the gate, but we've had
conflicting versions of the truth here and I'm trying
to figure out why.

This patch is a fresh run of generate_sample, which differs
from https://review.openstack.org/#/c/96784/

Change-Id: Ia2d6ca01beb1d2c42084100990129dadbb32b22c
3PAR volume detach with host in a host set

When deleting the last VLUN for a host, try to
delete the host.  If the host is in a host set
this will fail.  When that happens, log a nice
message including the reason, but don't fail
or hang the delete VLUN.  Leave hosts in host
sets.

Closes-Bug: #1317134

Change-Id: Ie3f8f94c05a6a318de866598f9e9c4c5d84926f4
Merge "Fix a message format error in migration cleanup"
Merge "Add exception handling for copy_volume_to_image()"
Merge "NetApp fix eseries concurrent vol map failure"
Make begin_detaching fail if volume not "in-use"

Like it's counterpart from Nova's volume-attach functionality standpoint
- reserve_volume, begin_detaching should fail if the volume is not in
  the correct state to be detached. This will prevent nova from
attempting to check and then detach, which is inherently racy.

Change-Id: Ie87eb0c9aea068affc94032ab2e53a91888d272a
Partial-bug: #1302774
Use os.urandom in volume transfer

This patch replaces a call to random.random() with a call to
os.urandom(), which generates a higher quality random number.

Closes-Bug: #1319643

Change-Id: Ifaa2216d4905f5286884629beac52b25249d621f
Remove Quota Exception Stack Traces from Cinder Logs

Added an if clause to the Cinder API FaultWrapper so that
a warning is printed rather than an error and stack trace
if an exception of type QuotaError is thrown.

Closes-Bug: 1324294
Change-Id: If91db0f443afc212af3893e27dd36f19b15c43bf
Fixed the comment spelling error - voumes to volumes

Closes-bug: #1325481
Change-Id: I38a1d9df98c709d3ca173fa61315ad3f7ca9ffdc
Merge "Add support for z/VM driver."