[PATCH 4/4] virDomainDiskTranslateSourcePool: Fix check of 'startupPolicy' definition

[Peter Krempa]

The check was historically done only for _TYPE_VOLUME disks, but
refactors to allow _TYPE_VOLUME disks in the backing chain caused a
regression where we'd reject startupPolicy also for _TYPE_BLOCK disks
which historically worked well.

Fix it by using the 'virDomainDiskDefValidateStartupPolicy' helper and
use it only when the top level image is a _TYPE_VOLUME as in other cases
it was already validated. This also allows _TYPE_BLOCK volumes to use
startup policy.

Fixes: 37f01262eed9f37dd5eb7de8b83edd2fea741054
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2095758
Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 src/conf/domain_conf.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 761c3f4d87..d5c5a10a8c 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -31433,13 +31433,13 @@ virDomainDiskTranslateSourcePool(virDomainDiskDef *def)

         if (virDomainStorageSourceTranslateSourcePool(n, conn) < 0)
             return -1;
-    }

-    if (def->startupPolicy != 0 &&
-        virStorageSourceGetActualType(def->src) != VIR_STORAGE_TYPE_FILE) {
-        virReportError(VIR_ERR_XML_ERROR, "%s",
-                       _("'startupPolicy' is only valid for 'file' type volume"));
-        return -1;
+        /* The validity of 'startupPolicy' setting is checked only for the top
+         * level image. For any other subsequent images we honour it only if
+         * possible */
+        if (n == def->src &&
+            virDomainDiskDefValidateStartupPolicy(def) < 0)
+            return -1;
     }

     return 0;
-- 
2.36.1