Do not crash zfs.dataset.unlocked_zvols_fast when volmode=full is…

… set (#13742)

src/middlewared/middlewared/plugins/zfs_/utils.py

@@ -2,6 +2,7 @@
 import enum
 import logging
 import os
+import re
 
 from middlewared.service_exception import MatchNotFound
 from middlewared.utils.filesystem.constants import ZFSCTL
@@ -12,6 +13,7 @@
 
 LEGACY_USERPROP_PREFIX = 'org.freenas'
 USERPROP_PREFIX = 'org.truenas'
+ZD_PARTITION = re.compile(r'zd[0-9]+p[0-9]+$')
 
 
 class TNUserProp(enum.Enum):
@@ -128,6 +130,9 @@ def get_zvols(info_level, data):
                     # skip this file
                     continue
 
+                if ZD_PARTITION.match(dev_name):
+                    continue
+
                 out.update({
                     zvol_name: {
                         'path': path,

tests/api2/test_zfs_dataset_list.py

@@ -0,0 +1,12 @@
+from middlewared.test.integration.assets.pool import dataset
+from middlewared.test.integration.utils import call, ssh
+
+
+def test__unlocked_zvols_fast__volmode():
+    with dataset("container") as container:
+        ssh(f"zfs set volmode=full {container}")
+
+        with dataset("container/zvol", {"type": "VOLUME", "volsize": 100 * 1024 * 1024}) as zvol:
+            ssh(f"sgdisk -n 1:1MiB:2MiB /dev/zvol/{zvol}")
+
+            call("zfs.dataset.unlocked_zvols_fast", [["name", "=", zvol]], {}, ["SIZE", "RO", "DEVID", "ATTACHMENT"])