change check for write-zeros

instead of hardcoding the storagetypes for writing zeros on a
backup restore, we use volume_has_feature with 'sparseinit'
for determining if we can omit writing zeros

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index c19943707af4fa3b83a6ae1cfd79c3fb421294e7..e661dc666054eb7266baf83a801f568e103f9263 100644 (file)
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -5607,9 +5607,7 @@ sub restore_vma_archive {
            PVE::Storage::activate_volumes($cfg,[$volid]);
 
            my $write_zeros = 1;
-           # fixme: what other storages types initialize volumes with zero?
-           if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs' || $scfg->{type} eq 'glusterfs' ||
-               $scfg->{type} eq 'sheepdog' || $scfg->{type} eq 'rbd') {
+           if (PVE::Storage::volume_has_feature($cfg, 'sparseinit', $volid)) {
                $write_zeros = 0;
            }