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[libvirt] [PATCH 3/5] conf: Mark backing chain ending with "raw" volume as broken



Do not output the </backingStore> element in the xml if the backing
chain ends with a volume specification unknown by libvirt.
---
 src/conf/domain_conf.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 189a4e8..2170607 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -15589,6 +15589,7 @@ virDomainDiskSourceFormat(virBufferPtr buf,
 static int
 virDomainDiskBackingStoreFormat(virBufferPtr buf,
                                 virStorageSourcePtr backingStore,
+                                int parentType,
                                 const char *backingStoreRaw,
                                 unsigned int idx)
 {
@@ -15596,7 +15597,7 @@ virDomainDiskBackingStoreFormat(virBufferPtr buf,
     const char *format;

     if (!backingStore) {
-        if (!backingStoreRaw)
+        if (!backingStoreRaw && parentType != VIR_STORAGE_TYPE_RAW)
             virBufferAddLit(buf, "<backingStore/>\n");
         return 0;
     }
@@ -15626,6 +15627,7 @@ virDomainDiskBackingStoreFormat(virBufferPtr buf,
     if (virDomainDiskSourceFormatInternal(buf, backingStore, 0, 0, true) < 0 ||
         virDomainDiskBackingStoreFormat(buf,
                                         backingStore->backingStore,
+                                        backingStore->type,
                                         backingStore->backingStoreRaw,
                                         idx + 1) < 0)
         return -1;
@@ -15751,6 +15753,7 @@ virDomainDiskDefFormat(virBufferPtr buf,
      * persistent storage of backing chains is ready. */
     if (!(flags & VIR_DOMAIN_XML_INACTIVE) &&
         virDomainDiskBackingStoreFormat(buf, def->src->backingStore,
+                                        def->src->type,
                                         def->src->backingStoreRaw, 1) < 0)
         return -1;

-- 
2.0.2


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