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new 4809fe7 kvm/ceph: When create a new RBD image use modern
flags/features for the image (#2985)
4809fe7 is described below
commit 4809fe7cb434010adc776a0da40cdf37848cc26e
Author: Wido den Hollander <[email protected]>
AuthorDate: Mon Nov 12 13:08:54 2018 +0100
kvm/ceph: When create a new RBD image use modern flags/features for the
image (#2985)
These additional RBD features allow for faster lookups of how much space a
RBD
image is using, but with the exclusive locking we prevent two VMs from
writing
to the same RBD image at the same time.
These are the default features used by Ceph for any new RBD image.
Signed-off-by: Wido den Hollander <[email protected]>
---
.../com/cloud/hypervisor/kvm/storage/LibvirtStorageAdaptor.java | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git
a/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/storage/LibvirtStorageAdaptor.java
b/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/storage/LibvirtStorageAdaptor.java
index 7500540..dc8083f 100644
---
a/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/storage/LibvirtStorageAdaptor.java
+++
b/plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/storage/LibvirtStorageAdaptor.java
@@ -72,7 +72,12 @@ public class LibvirtStorageAdaptor implements StorageAdaptor
{
private String _manageSnapshotPath;
private String rbdTemplateSnapName = "cloudstack-base-snap";
- private int rbdFeatures = (1 << 0); /* Feature 1<<0 means layering in RBD
format 2 */
+ private static final int RBD_FEATURE_LAYERING = 1;
+ private static final int RBD_FEATURE_EXCLUSIVE_LOCK = 4;
+ private static final int RBD_FEATURE_OBJECT_MAP = 8;
+ private static final int RBD_FEATURE_FAST_DIFF = 16;
+ private static final int RBD_FEATURE_DEEP_FLATTEN = 32;
+ private int rbdFeatures = RBD_FEATURE_LAYERING +
RBD_FEATURE_EXCLUSIVE_LOCK + RBD_FEATURE_OBJECT_MAP + RBD_FEATURE_FAST_DIFF +
RBD_FEATURE_DEEP_FLATTEN;
private int rbdOrder = 0; /* Order 0 means 4MB blocks (the default) */
public LibvirtStorageAdaptor(StorageLayer storage) {
