[libvirt] [PATCH 4/7] virstoragefile: Introduce virStorageSourceChainGetManagedPRAlias
When processing a pr-manager related event from qemu we will know
pr-manager alias. So we need a helper to traverse backing chain
and return any managed alias it finds so that the caller can
compare these two aliases to learn if it is a managed helper or
not.
Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com>
---
src/libvirt_private.syms | 1 +
src/util/virstoragefile.c | 14 ++++++++++++++
src/util/virstoragefile.h | 3 +++
3 files changed, 18 insertions(+)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 3e304907b9..98ff8a5aa6 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -2840,6 +2840,7 @@ virStoragePRDefIsEqual;
virStoragePRDefIsManaged;
virStoragePRDefParseXML;
virStorageSourceBackingStoreClear;
+virStorageSourceChainGetManagedPRAlias;
virStorageSourceChainHasManagedPR;
virStorageSourceClear;
virStorageSourceCopy;
diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index 58f67278da..3f2bca4970 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -2041,6 +2041,20 @@ virStorageSourceChainHasManagedPR(virStorageSourcePtr src)
}
+const char *
+virStorageSourceChainGetManagedPRAlias(virStorageSourcePtr src)
+{
+ virStorageSourcePtr n;
+
+ for (n = src; virStorageSourceIsBacking(n); n = n->backingStore) {
+ if (virStoragePRDefIsManaged(src->pr))
+ return src->pr->mgralias;
+ }
+
+ return NULL;
+}
+
+
virSecurityDeviceLabelDefPtr
virStorageSourceGetSecurityLabelDef(virStorageSourcePtr src,
const char *model)
diff --git a/src/util/virstoragefile.h b/src/util/virstoragefile.h
index 991098e6c6..eb5b2b2a45 100644
--- a/src/util/virstoragefile.h
+++ b/src/util/virstoragefile.h
@@ -404,6 +404,9 @@ bool virStoragePRDefIsManaged(virStoragePRDefPtr prd);
bool
virStorageSourceChainHasManagedPR(virStorageSourcePtr src);
+const char *
+virStorageSourceChainGetManagedPRAlias(virStorageSourcePtr src);
+
virSecurityDeviceLabelDefPtr
virStorageSourceGetSecurityLabelDef(virStorageSourcePtr src,
const char *model);
--
2.16.4