Fix bucket quota checks

Author: abh1sar

server/src/main/java/org/apache/cloudstack/storage/object/BucketApiServiceImpl.java

@@ -176,8 +176,8 @@ public Bucket createBucket(CreateBucketCmd cmd) {
                 if (objectStoreVO.getTotalSize() != null && objectStoreVO.getTotalSize() != 0 && objectStoreVO.getAllocatedSize() != null) {
                     Long allocatedSize = objectStoreVO.getAllocatedSize() / Resource.ResourceType.bytesToGiB;
                     Long totalSize = objectStoreVO.getTotalSize() / Resource.ResourceType.bytesToGiB;
-                    if (cmd.getQuota() + objectStoreVO.getAllocatedSize() > objectStoreVO.getTotalSize()) {
-                        logger.error("Object store {}'s allocated size has reached the total size limit of {}GiB.", objectStoreVO.getName(), (objectStoreVO.getTotalSize() / Resource.ResourceType.bytesToGiB));
+                    if (cmd.getQuota() + allocatedSize > totalSize) {
+                        logger.error("Object store {}'s allocated size has reached the total size limit of {}GiB.", objectStoreVO.getName(), totalSize);
                         throw new CloudRuntimeException("Not enough space in object store to create the bucket");
                     }
                 }