From: Michal Privoznik <mprivozn@redhat.com>
Date: Fri, 21 Jun 2019 15:59:29 +0000 (+0200)
Subject: virstoragefile: Introduce virStorageSourceChainHasNVMe
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=a88eef7c48d06cd82b549f0a4bc959181abacd1b;p=libvirt.git

virstoragefile: Introduce virStorageSourceChainHasNVMe

This function will return true if there's a storage source of
type VIR_STORAGE_TYPE_NVME, or false otherwise.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
ACKed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
---

diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 19d2c67689..f2592a0782 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -3074,6 +3074,7 @@ virStoragePRDefIsManaged;
 virStoragePRDefParseXML;
 virStorageSourceBackingStoreClear;
 virStorageSourceChainHasManagedPR;
+virStorageSourceChainHasNVMe;
 virStorageSourceClear;
 virStorageSourceCopy;
 virStorageSourceFindByNodeName;
diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index 480f0d7db4..3a3de314b8 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -2136,6 +2136,20 @@ virStorageSourceNVMeDefFree(virStorageSourceNVMeDefPtr def)
 }
 
 
+bool
+virStorageSourceChainHasNVMe(const virStorageSource *src)
+{
+    const virStorageSource *n;
+
+    for (n = src; virStorageSourceIsBacking(n); n = n->backingStore) {
+        if (n->type == VIR_STORAGE_TYPE_NVME)
+            return true;
+    }
+
+    return false;
+}
+
+
 virSecurityDeviceLabelDefPtr
 virStorageSourceGetSecurityLabelDef(virStorageSourcePtr src,
                                     const char *model)
diff --git a/src/util/virstoragefile.h b/src/util/virstoragefile.h
index 42ca49bc64..39e50a989d 100644
--- a/src/util/virstoragefile.h
+++ b/src/util/virstoragefile.h
@@ -433,6 +433,8 @@ virStorageSourceChainHasManagedPR(virStorageSourcePtr src);
 void virStorageSourceNVMeDefFree(virStorageSourceNVMeDefPtr def);
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(virStorageSourceNVMeDef, virStorageSourceNVMeDefFree);
 
+bool virStorageSourceChainHasNVMe(const virStorageSource *src);
+
 virSecurityDeviceLabelDefPtr
 virStorageSourceGetSecurityLabelDef(virStorageSourcePtr src,
                                     const char *model);