util: storage: Add shadow copies of few disk properties to virStorageSource

Few things which are currently stored the virDomainDiskDef structure are
actually relevant for the storage source as well. Add the fields with a
note that they are just mirror of the values from the disk.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>

diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index b10a40e545c8be96109681c2c6b46e57beba1293..eae1dc01dc0314b7cf4571393228d87e8f2ddae4 100644 (file)
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -2042,6 +2042,10 @@ virStorageSourceCopy(const virStorageSource *src,
     ret->detected = src->detected;
     ret->debugLevel = src->debugLevel;
     ret->debug = src->debug;
+    ret->iomode = src->iomode;
+    ret->cachemode = src->cachemode;
+    ret->discard = src->discard;
+    ret->detect_zeroes = src->detect_zeroes;
 
     /* storage driver metadata are not copied */
     ret->drv = NULL;

diff --git a/src/util/virstoragefile.h b/src/util/virstoragefile.h
index 0909fe212c521547ec22cc549643997f79f38f48..03e9ba9d2dd8f63ceef66cb9b551181ea5f42eb1 100644 (file)
--- a/src/util/virstoragefile.h
+++ b/src/util/virstoragefile.h
@@ -305,6 +305,14 @@ struct _virStorageSource {
 
     unsigned int debugLevel;
     bool debug;
+
+    /* Libvirt currently stores the following properities in virDomainDiskDef.
+     * These instances are currently just copies from the parent definition and
+     * are not mapped back to the XML */
+    int iomode; /* enum virDomainDiskIo */
+    int cachemode; /* enum virDomainDiskCache */
+    int discard; /* enum virDomainDiskDiscard */
+    int detect_zeroes; /* enum virDomainDiskDetectZeroes */
 };