From bd45da8b308c16f30766ad756fe3c2f54e4f3e9f Mon Sep 17 00:00:00 2001
From: Peter Krempa <pkrempa@redhat.com>
Date: Thu, 25 Feb 2021 13:51:51 +0100
Subject: [PATCH 016/108] storageBackendProbeTarget: Don't fail if backing
 store can't be parsed

When the backing store of the image can't be parsed
virStorageSourceNewFromBacking returns -1. storageBackendProbeTarget
then also fails which makes the pool refresh fail or even the storage
pool becomes inactive after (re)start of libvirtd.

In situations when we can't access the backing store via network we
just report the backing store string, thus we can do the same thing for
unparsable backing store to prevent the pool from going offline.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit 104db1951d3abfd8cb363b8e8070f712044bc645)
---
 src/storage/storage_util.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/storage/storage_util.c b/src/storage/storage_util.c
index 4c67d3a4b1..2e4c7b29b3 100644
--- a/src/storage/storage_util.c
+++ b/src/storage/storage_util.c
@@ -3363,13 +3363,11 @@ storageBackendProbeTarget(virStorageSourcePtr target,
         return -1;
 
     if (meta->backingStoreRaw) {
-        if (virStorageSourceNewFromBacking(meta, &target->backingStore) < 0)
-            return -1;
-
         /* XXX: Remote storage doesn't play nicely with volumes backed by
          * remote storage. To avoid trouble, just fake the backing store is RAW
          * and put the string from the metadata as the path of the target. */
-        if (!virStorageSourceIsLocalStorage(target->backingStore)) {
+        if (virStorageSourceNewFromBacking(meta, &target->backingStore) < 0 ||
+            !virStorageSourceIsLocalStorage(target->backingStore)) {
             virObjectUnref(target->backingStore);
 
             if (!(target->backingStore = virStorageSourceNew()))
-- 
2.33.0