Automated cherry pick of #20852: fix(region,host): slvm disk create use guest host lvm disk create from backup (#20855)

* fix(region): slvm disk create use guest host

* fix(host): lvm disk create from backup

pkg/compute/models/disks.go

@@ -1472,6 +1472,12 @@ func (disk *SDisk) getCandidateHostIds() ([]string, error) {
 }
 
 func (self *SDisk) GetMasterHost(storage *SStorage) (*SHost, error) {
+	if storage.StorageType == api.STORAGE_SLVM {
+		if guest := self.GetGuest(); guest != nil {
+			return guest.GetHost()
+		}
+	}
+
 	if storage.MasterHost != "" {
 		return storage.GetMasterHost()
 	}

pkg/hostman/storageman/storage_lvm.go

@@ -486,6 +486,19 @@ func (s *SLVMStorage) CreateDiskFromExistingPath(context.Context, IDisk, *SDiskC
 	return errors.Errorf("unsupported operation")
 }
 
+func (s *SLVMStorage) CreateDiskFromBackup(ctx context.Context, disk IDisk, input *SDiskCreateByDiskinfo) error {
+	lvSizeMb := lvmutils.GetQcow2LvSize(int64(input.DiskInfo.DiskSizeMb))
+	if err := lvmutils.LvCreate(s.GetPath(), disk.GetId(), lvSizeMb*1024*1024); err != nil {
+		return errors.Wrap(err, "CreateRaw")
+	}
+
+	err := doRestoreDisk(ctx, s, input, disk, disk.GetPath())
+	if err != nil {
+		return errors.Wrap(err, "doRestoreDisk")
+	}
+	return nil
+}
+
 func (s *SLVMStorage) GetFuseTmpPath() string {
 	localPath := options.HostOptions.ImageCachePath
 	if len(options.HostOptions.LocalImagePath) > 0 {

pkg/hostman/storageman/storage_slvm.go

@@ -177,3 +177,15 @@ func (s *SSLVMStorage) SetStorageInfo(storageId, storageName string, conf jsonut
 	}
 	return nil
 }
+
+func (s *SSLVMStorage) CreateDiskFromBackup(ctx context.Context, disk IDisk, input *SDiskCreateByDiskinfo) error {
+	err := s.SLVMStorage.CreateDiskFromBackup(ctx, disk, input)
+	if err != nil {
+		return err
+	}
+	err = lvmutils.LVDeactivate(disk.GetPath())
+	if err != nil {
+		return errors.Wrap(err, "LVDeactivate")
+	}
+	return nil
+}