openstack/nova
Code Issues Proposed changes

Add helper functions for getting local disk

Browse Source 
Following functions are added in order to be used by validate_bdm
and resource_tracker code.
get_bdm_ephemeral_disk_size: return sum of eph disk size of bdms
get_bdm_swap_list: return a swap disk list of bdms
get_bdm_local_disk_num: return local disk number (include eph and swap)

Change-Id: I215970bea72b502042472aa310fe64ffc4304b25
This commit is contained in:
jichenjc
2014-05-16 09:08:44 +08:00
parent 92be9eea95
commit 345e45b52e
2 changed files with 69 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
nova/block_device.py
View File

@@ -529,3 +529,19 @@ def volume_in_mapping(mount_device, block_device_info):
LOG.debug("block_device_list %s", block_device_list)
return strip_dev(mount_device) in block_device_list
def get_bdm_ephemeral_disk_size(block_device_mappings):
return sum(bdm.get('volume_size', 0)
for bdm in block_device_mappings
if new_format_is_ephemeral(bdm))
def get_bdm_swap_list(block_device_mappings):
return [bdm for bdm in block_device_mappings
if new_format_is_swap(bdm)]
def get_bdm_local_disk_num(block_device_mappings):
return len([bdm for bdm in block_device_mappings
if bdm.get('destination_type') == 'local'])